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MiniCom (OP6800)
C-Programmable Operator Interface
User’s Manual
019–0106 • 040115–C
MiniCom (OP6800) User’s Manual
Part Number 019-0106 • 040115–C • Printed in U.S.A.
©2002–2004 Z-World Inc. • All rights reserved.
Z-World reserves the right to make changes and improvements to its products without providing notice.
Trademarks
Rabbit and Rabbit 2000 are registered trademarks of Rabbit Semiconductor.
RabbitCore is a trademark of Rabbit Semiconductor.
Dynamic C is a registered trademark of Z-World Inc.
Z-World, Inc.
2900 Spafford Street
Davis, California 95616-6800
USA
Telephone: (530) 757-3737
Fax: (530) 757-3792 www.zworld.com
MiniCom (OP6800)
T
ABLE OF
C
ONTENTS
User’s Manual
Chapter 5. Using the TCP/IP Features 35
Chapter 6. Installation and Mounting Guidelines 43
Appendix C. Demonstration Board 61
Appendix D. OP6800 Function APIs 69
Appendix E. Programming Cable 95
MiniCom (OP6800)
1. I
NTRODUCTION
The OP6800 intelligent terminal interface is a small, highperformance, C-programmable terminal interface that offers built-in I/O and Ethernet connectivity. A Rabbit 2000 microprocessor operating at 22.1 MHz provides fast data processing.
1.1 Description
The OP6800 intelligent terminal interface incorporates the powerful Rabbit 2000 microprocessor, flash memory, static RAM, digital I/O ports, RS-232/RS-485 serial ports, and a
10Base-T Ethernet port.
1.2 Features
•
122 × 32 graphic display.
•
7-key keypad.
•
7 LEDs.
•
24 digital I/O: 13 filtered digital inputs, and 11 sinking high-current outputs (7 outputs with LED indicators, and 4 high-current digital outputs with transient protection to drive inductive loads).
•
Rabbit 2000
®
microprocessor operating at 22.1 MHz.
•
128K static RAM and 256K flash memory standard, may be increased to 512K SRAM and 512K flash memory.
•
One RJ-45 Ethernet port compliant with IEEE 802.3 standard for 10Base-T Ethernet protocol (OP6800 only).
•
Four serial ports (2 RS-232 or 1 RS-232 with RTS/CTS, 1 RS-485, and 1 CMOS-compatible programming port).
•
Battery-backable real-time clock, connection point for external battery included.
•
Watchdog.
•
Reset generator.
•
Meets NEMA 4 watertightness specifications when front-panel mounted.
•
Remote program downloading and debugging capability via RabbitLink.
User’s Manual 1
Two OP6800 models are available. Their standard features are summarized in Table 1.
Table 1. OP6800 Models
Feature OP6800 OP6810
Microprocessor
Static RAM
Flash Memory
RJ-45 Ethernet Connector and
Filter Capacitors
RabbitCore Module Used
Rabbit 2000 running at 22.1 MHz
128K
256K
Yes
RCM2200
No
RCM2300
Appendix A provides detailed specifications.
Visit Z-World’s Web site for up-to-date information about additional add-ons and features as they become available. The Web site also has the latest revision of this user’s manual.
1.3 Development and Evaluation Tools
1.3.1 Tool Kit
A Tool Kit contains the hardware essentials you will need to use your OP6800. The items in the Tool Kit and their use are as follows.
•
OP6800 User’s Manual with schematics (this document).
•
Programming cable, used to connect your PC serial port to the OP6800.
•
12 V AC adapter, used to power the OP6800. An AC adapter is supplied with tool kits sold in the North American market. If you are using your own power supply, it must provide 9 to 36 V DC.
•
Demonstration Board with prototyping area, pushbutton switches, and LEDs. The
Demonstration Board can be hooked up to the OP6800 to demonstrate the I/O, and the prototyping area can be used for custom circuits.
•
Ribbon cable to connect Demonstration Board to OP6800.
•
Screwdriver.
•
Rabbit 2000 Processor Easy Reference poster.
•
Registration card.
2 MiniCom (OP6800)
DIAG
Programming
Cable
AC Adapter
(North American kits only)
PROG
Minicom (OP6800)
C-Programmable Operator Interface
Users Manual
0190106 020115A
Demonstration Board
Ribbon Cable
IN12 IN13 IN14 IN15 IN16 IN17 VBA
J4
J2
J5
GND +RAW TxB RxB TxC RxC + RS485
0 V
+5 V
GND
0 V
VBAT
IN16
IN14
IN12
RxC
OUT04
OUT02
OUT00
RxB
OUT01
GND
C2
TxB
TxC
485
J1
IN02
IN00
+RAW
OUT10
OUT08
OUT06
+485
IN10
IN08
IN06
IN04
+K
GND
IN07
IN05
IN03
IN01
OUT09
OUT07
OUT05
OUT03
1
HOT!
C3
C1
3
+5 V
JP1
U1
+5 V GND
GND
+RAW
J3
IN13
IN11
IN17
IN15 LS1
+5 V GND
+RAW +K
GND
+5 V
+K
J11
J6
+K OUT10 OUT09 OUT08 OUT07 OUT06 OUT05 OUT04 OUT03 OUT02 OUT01 OUT00
J7
IN00 IN01 IN02 IN03 IN04 IN05
J8
J10
0 V
GND
+5 V
DS
4
RP1
DS
3
DS
2
DS1
S1
S2
S3
S4
Screwdriver
User's Manual
Demonstration Board
Figure 1. OP6800 Tool Kit
1.3.2 Software
The OP6800 is programmed using version 7.06 or later of Z-World’s Dynamic C.
A compatible version is included on the Tool Kit CD-ROM.
Library functions provide an easy-to-use interface for the OP6800. Software drivers for the display and keypad, TCP/IP, I/O, and serial communication are included with Dynamic C.
Web-based technical support is included at no extra charge.
Z-World also offers add-on Dynamic C modules containing the popular
µ
C/OS-II realtime operating system, as well as PPP, Advanced Encryption Standard (AES), and other select libraries. In addition to the Web-based technical support included at no extra charge, a one-year telephone-based technical support module is also available for purchase. Visit our Web site at www.zworld.com or contact your Z-World sales representative or authorized distributor for further information.
User’s Manual 3
1.4 CE Compliance
Equipment is generally divided into two classes.
CLASS A
Digital equipment meant for light industrial use
Less restrictive emissions requirement: less than 40 dB µV/m at 10 m
(40 dB relative to 1 µV/m) or 300 µV/m
CLASS B
Digital equipment meant for home use
More restrictive emissions requirement:
30 dB µV/m at 10 m or 100 µV/m
These limits apply over the range of 30–230 MHz. The limits are 7 dB higher for frequencies above 230 MHz. Although the test range goes to 1 GHz, the emissions from Rabbit-based systems at frequencies above 300 MHz are generally well below background noise levels.
The OP6800 has been tested and was found to be in conformity with the following applicable immunity and emission standards. The OP6810 is also CE qualified as it is a sub-version of the OP6800. Boards that are CE-compliant have the CE mark.
NOTE: Earlier versions of the OP6800 sold before 2003 that do not have the CE mark are not CE-complaint.
Immunity
The OP6800 operator interfaces meet the following EN55024/1998 immunity standards.
•
EN61000-4-2 (ESD)
•
EN61000-4-3 (Radiated Immunity)
•
EN61000-4-4 (EFT)
•
EN61000-4-6 (Conducted Immunity)
Additional shielding or filtering may be required for a heavy industrial environment.
Emissions
The OP6800 operator interfaces meet the following emission standards emission standards with the Rabbit 2000 spectrum spreader turned on and set to the normal mode. The spectrum spreader is only available with Rev. C or higher of the Rabbit 2000 microprocessor. This microprocessor is used on the OP6800 operator control panels that carry the CE mark.
•
EN55022:1998 Class B
•
FCC Part 15 Class B
Your results may vary, depending on your application, so additional shielding or filtering may be needed to maintain the Class B emission qualification.
4 MiniCom (OP6800)
1.4.1 Design Guidelines
Note the following requirements for incorporating the OP6800 operator interfaces into your application to comply with CE requirements.
General
•
The power supply provided with the Tool Kit is for development purposes only. It is the customer’s responsibility to provide a CE-compliant power supply for the end-product application.
•
When connecting the OP6800 to outdoor cables, the customer is responsible for providing CE-approved surge/lightning protection.
•
Z-World recommends placing digital I/O or analog cables that are 3 m or longer in a metal conduit to assist in maintaining CE compliance and to conform to good cable design practices. Z-World also recommends using properly shielded I/O cables in noisy electromagnetic environments.
•
While the OP6800 meets the EN61000-4-2 (ESD) requirements in that it can withstand contact discharges of ± 4 kV and air discharges of ± 8 kV, it is the responsibility of the end-user to use proper ESD precautions to prevent ESD damage when installing or servicing the OP6800.
Safety
•
For personal safety, all inputs and outputs to and from the OP6800 must not be connected to voltages exceeding SELV levels (42.4 V AC peak, or 60 V DC). Damage to the Rabbit 2000 microprocessor may result if voltages outside the design range of 0 V to 40 V DC are applied directly to any of its digital inputs.
•
The lithium backup battery circuit on the OP6800 has been designed to protect the battery from hazardous conditions such as reverse charging and excessive current flows.
Do not disable the safety features of the design.
1.4.2 Interfacing the OP6800 to Other Devices
Since the OP6800 operator control panels are designed to be connected to other devices, good EMC practices should be followed to ensure compliance. CE compliance is ultimately the responsibility of the integrator. Additional information, tips, and technical assistance are available from your authorized Z-World distributor, and are also available on our Web site at www.zworld.com.
User’s Manual 5
6 MiniCom (OP6800)
2. G
ETTING
S
TARTED
Chapter 2 explains how to connect the programming cable and power supply to the OP6800. Once you run a sample program to demonstrate that you have connected everything correctly, you will be ready to go on and finish developing your system.
2.1 Connections
1. Screw in the four standoffs included with the Tool Kit into the four mounting threads
on the OP6800 as shown in Figure 2.
User’s Manual
R4
J1
R6
JP1
KP1
U1
C1
R2
R3
U2
C8 C9
C2 C3 C4 C5
RP1 RP2 RP3
RP6 RP7 RP8
R11
R16
Q7
Q5
R13 D12
D11
D13
R17
Q8
Flas
EP h
ROM
R26 C44
R39
C27
R38
R27
R41
U5
JP3
R22
JP4
R8
RP9
R10
C30 C31
LNK
DS1
D7
R19
Q10
D8
R20
Q11
D9
R21
Q12
D10
Q6
R15
U3
R25
R24
C35
C33
R28
C25
R23
C34
C36
U4
R29
C45
U6
C37
C4 C17
U7
C39
J2
C42
R31
C43
R13
J3
C17
R32
RN1
RP4 D6
R14
C40
D14
Figure 2. Screw In Standoffs Into OP6800 Mounting Threads
7
2. Connect the OP6800 to the Demonstration Board from the Tool Kit using the ribbon
cable connector as shown in Figure 3. First, connect the ribbon cable to header J1 on
the OP6800 (Step 1), then turn the OP6800 over and connect the other end of the ribbon cable to header J1 on the Demonstration Board (Step 2). By connecting the boards this way, you have the option of placing the Demonstration Board behind your OP6800 in
your final installation as explained in Appendix C.
J1
R2
R30
R9
C8
Y1 C4
C17
C38
C3 D2
R7 C27
U6
R8
R36
R37
D1
RT1
Y2 C2
JP4 JP3
D3
BT1
U1
R15
C12
R17
Q2
R19
Q3 Q4
R20 C13
R21 R22
Q5
C14
U2
J2
C28
R28 C33
R18 C25
R16
Y3
U3 C1 U8 U7
C7
R5
R12
C25
C26
C31
C30
DS2
Q2
R7
JP1
C28
C27
C30
JP2
JP5
C29
R9
JP6
Q3
C29 GND
C12
Q4
GND
C11
C15
C32 ACT C16
C18 RP5
C19
C20
C21
C22
C23
C13
C24
Q1
D3
D2
D4
D5
C10
C6
C7
IN03
IN05
IN01
IN11
IN13
IN07
IN09
IN15
IN17
GND
+K
OUT09
OUT07
OUT05
TxB
GND
TxC
+485
OUT01
OUT03
1
LCD1
OUT02
OUT04
RxC
RxB
485
OUT00
OUT06
OUT08
IN00
IN02
+RAW
IN04
IN06
IN12
IN14
IN08
IN10
IN16
VBAT
OUT10
Pin 1
IN12 IN13 IN14 IN15 IN16 IN17 VBA
J2
J4
0 V 0 V
+5 V
GND
IN00 IN01 IN02 IN03 IN04 IN05
IN10
IN08
IN06
IN04
VBAT
IN16
IN14
IN12
IN02
IN00
+RAW
OUT10
OUT08
OUT06
OUT04
OUT02
OUT00
RxB
RxC
485
2
J1
IN17
IN15
IN13
IN11
LS1
IN09
IN07
IN05
Buzzer
OUT03
OUT01
GND
TxB
TxC
+485
IN03
IN01
GND
+K
OUT09
OUT07
OUT05
C1
1
HOT!
3
C2
U1
C3
J3
0 V
+5 V
GND
+5 V GND
+5 V GND
+RAW
+5 V
GND
J5
GND +RAW TxB RxB TxC RxC + RS485
GND
+5 V
+K
J11
+RAW +K
J6
+K OUT10 OUT09 OUT08 OUT07 OUT06 OUT05 OUT04 OUT03 OUT02 OUT01 OUT00
J7
J10
J8
Figure 3. Connect the OP6800 to the Demonstration Board
8 MiniCom (OP6800)
3. Connect the power supply.
Connect the bare ends of the power supply to the
+RAW
and
GND
positions on screw ter-
minal header J5 of the Demonstration Board as shown in Figure 4.
T IN12 IN13 IN14 IN15 IN16 IN17 VBA IN00 IN01 IN02 IN03 IN04 IN05
J4
J2
0 V
IN00
+RAW
OUT10
OUT08
IN08
IN06
IN04
IN02
OUT06
OUT04
OUT02
OUT00
VBAT
IN16
IN14
IN12
IN10
RxB
RxC
485
J1
IN17
IN15
IN13
IN11
LS1
IN09
IN07
IN05
Buzzer
IN03
IN01
GND
+K
OUT09
OUT07
C1
U1
OUT05
OUT03
OUT01
GND
TxB
C2
1
HOT!
3
C3
TxC
+485
0 V
+5 V
GND
+5 V GND
+5 V GND
+RAW
+5 V
GND
J3
J5
GND +RAW TxB RxB TxC RxC + RS485
+
0 V
+5 V
GND
+RAW +K
GND
+5 V
+K
J11
J6
+K OUT10 OUT09 OUT08 OUT07 OUT06 OUT05 OUT04 OUT03 OUT02 OUT01 OUT00
J7
J10
J8
Figure 4. Power Supply Connections
NOTE: The OP6800 itself has reverse polarity protection, but the Demonstration Board does not. Be careful to connect the positive and negative leads as shown to avoid damaging the Demonstration Board.
NOTE: If you are using your own power supply, Z-World recommends using a 9 V to 25 V
DC power supply. The linear regulator on the Demonstration Board can handle up to
35 V, but can get extremely hot.
4. Apply power.
Plug in the AC adapter.
NOTE: A hardware RESET is done by unplugging the AC adapter, then plugging it back in.
User’s Manual 9
2.2 Demonstration Program on Power-Up
A repeating sequence of graphics and messages in various languages will be displayed on the LCD, and the LEDs will flash on and off in sequence when power is first applied to the
OP6800. Try pressing the buttons on the keypad. The LED immediately above that button will light up, and if you pressed one of the keys in the top row of the keypad, the corresponding LED on the Demonstration Board will light up. Similarly, if you press one of the switches on the Demonstration Board, the corresponding LED on the Demonstration
Board and on the OP6800 will light up.
Note that the programming cable does not have to be connected for this demonstration.
This demonstration will be replaced by a new program when the programming cable is attached and the new program is compiled and run. The demonstration is available for future reference in the Dynamic C
SAMPLES\LCD_KEYPAD\122x32_1x7
directory as
FUN.C
.
2.3 Display Contrast Adjustment
The LCD contrast is preset at the factory. If you need to adjust the contrast for optimum display of graphics and messages, you may adjust the potentiometer at R4 located as
shown in Figure 5. Note that OP6800 units sold before 2004 did not have any provision to
adjust the contrast.
Contrast
Adjustment
R4
J1
R6
JP1
KP1
U1
C1
R2
R3
U2
C8 C9
C2 C3 C4 C5
RP1 RP2 RP3
RP6 RP7 RP8
R11
R16
Q7
Q5
R13
D12
D13
R17
Q8
R26 C44
R39
D2 R7
C3
C27
R38
R27
R41
Flas
U5
D11
h
ROM
R22
JP3
JP4
R8
RP9
R10
C30 C31
LNK
DS1
D7
R19
Q10
D8
R20
Q11
D9
R21
Q12
D10
Q6
R15
U3
R25
R24
C33
R28
C35
C25
R23
C34
C36
U4
R29
C45
U6
C37
C4 C17
J2
U7
C42
R31
C43
R11
C41
R13
J3
C39
RN1
RP4
D6
R14
C40
D14
Figure 5. LCD Contrast Adjustment
10 MiniCom (OP6800)
2.4 Programming Cable Connections
1. Connect the programming cable to download programs from your PC and to program and debug the OP6800.
Connect the 10-pin
PROG
connector of the programming cable to header J1 on the
OP6800 RabbitCore module. Ensure that the colored edge lines up with pin 1 as shown.
(Do not use the
DIAG
connector, which is used for monitoring only, as explained in
Appendix E, “Programming Cable.”) Connect the other end of the programming cable to a
COM port on your PC. Make a note of the port to which you connect the cable, as
Dynamic C will need to have this parameter configured. Note that COM1 on the PC is the default COM port used by Dynamic C.
J1
PROG
R4
J1
R6
JP1
KP1
U1
C1
R2
R3
U2
C8 C9
C2 C3 C4 C5
RP1 RP2 RP3
RP6 RP7 RP8
Q5
R13
D12 D11
R11
R16
Q7
D13
R17
Q8
Flas
EP h
ROM
R26 C44
R39
C27
R38
R27
R41
U5
JP3
R22
JP4
R8
RP9
R10
C30 C31
LNK
DS1
D7
R19
Q10
D8
R20
Q11
D9
R21
Q12
D10
Q6
R15
U3
R25
R24
C33
R28
C35
C25
R23
C34
C36
U4
R29
C45
U6
C37
C4 C17
U7
J2
PROG
C42
R31
C43
R11
C41
R13
J3
C39
C17
R32
RN1
R14
RP4 D6
C40
D14
Colored edge
DIAG
Programming Cable
To
PC COM port
Figure 6. Programming Cable Connections
2. Apply power.
Reset the OP6800 by unplugging the AC adapter, then plugging it back in. The OP6800 is now ready to be used.
User’s Manual 11
2.5 Installing Dynamic C
If you have not yet installed Dynamic C version 7.06P2 (or a later version), do so now by inserting the Dynamic C CD in your PC’s CD-ROM drive. The CD will auto-install unless you have disabled auto-install on your PC.
If the CD does not auto-install, click
Start > Run
from the Windows
Start
button and browse for the Dynamic C
setup.exe
file on your CD drive. Click
OK
to begin the installation once you have selected the
setup.exe
file.
The Dynamic C User’s Manual provides detailed instructions for the installation of
Dynamic C and any future upgrades.
NOTE: If you have an earlier version of Dynamic C already installed, the default installation of the later version will be in a different folder, and a separate icon will appear on your desktop.
2.6 Starting Dynamic C
Once the OP6800 is connected to your PC and to a power source, start Dynamic C by double-clicking on the Dynamic C icon or by double-clicking on the
.exe
file associated with
DcRab
in the Dynamic C directory.
Dynamic C assumes, by default, that you are using serial port COM1 on your PC. If you
are using COM1, then Dynamic C should detect the OP6800 and go through a sequence of steps to cold-boot the OP6800 and to compile the BIOS. If the error message “Rabbit Processor Not Detected” appears, you have probably connected to a different PC serial port such as COM2, COM3, or COM4. You can change the serial port used by Dynamic C with the
OPTIONS
menu, then try to get Dynamic C to recognize the OP6800 by selecting
Reset Target/Compile BIOS
on the
Compile
menu. Try the different COM ports in the
OPTIONS
menu until you find the one you are connected to. If you still can’t get Dynamic
C to recognize the target on any port, then the hookup may be wrong or the COM port might not working on your PC.
If you receive the “BIOS successfully compiled …” message after pressing
<Ctrl-Y>
or starting Dynamic C, and this message is followed by a communications error message, it is possible that your PC cannot handle the 115,200 bps baud rate. Try changing the baud rate to 57,600 bps as follows.
•
Locate the
Serial Options
dialog in the Dynamic C
Options > Project Options >
Communications
menu. Change the baud rate to 57,600 bps.
12 MiniCom (OP6800)
2.7 PONG.C
You are now ready to test your programming connections by running a sample program.
Find the file
PONG.C
, which is in the Dynamic C
SAMPLES
folder. To run the program, open it with the
File
menu (if it is not still open), compile it using the
Compile
menu, and then run it by selecting
Run
in the
Run
menu. The
STDIO
window will open and will display a small square bouncing around in a box.
This program shows that the CPU is working. The sample program described in
Section 5.2.3, “Run the PINGME.C Demo,” tests the TCP/IP portion of the board (if you
have the OP6800 model—the OP6810 does not have an Ethernet capability).
2.8 Where Do I Go From Here?
NOTE: If you purchased your OP6800 through a distributor or Z-World partner, contact the distributor or Z-World partner first for technical support.
If there are any problems at this point:
•
Check the Z-World Technical Bulletin Board at www.zworld.com/support/bb/.
•
Use the Technical Support e-mail form at www.zworld.com/support/support_submit.html.
If the sample program ran fine, you are now ready to go on to explore other OP6800 features and develop your own applications.
The following sample programs illustrate the features and operation of the OP6800.
OP6800
(
SAMPLES\LCD_KEYPAD\122x32_1x7
)
Demonstration Board
(
SAMPLES\OP6800\DEMO_BD
)
KEYBASIC.C
KEYMENU.C
SCROLLING.C
TEXT.C
KEYPAD.C
SWITCHES.C
These sample programs can be used as templates for applications you may wish to develop.
Chapter 3, “Subsystems,” provides a description of the OP6800’s features, Chapter 4,
“Software,” describes the Dynamic C software libraries and describes the sample pro-
grams, and Chapter 5, “Using the TCP/IP Features,” explains the TCP/IP features and
describes some sample programs.
User’s Manual 13
14 MiniCom (OP6800)
3. S
UBSYSTEMS
Chapter 3 describes the principal subsystems for the OP6800.
Figure 7 shows these Rabbit-based subsystems designed into the OP6800.
SRAM
Flash
32 kHz osc
11 MHz osc
RABBIT
2000
RS-232
Decoder
Keypad
Display
RabbitCore Module
Figure 7. OP6800 Subsystems
RS-485
Digital
Input
Digital
Output
User’s Manual 15
3.1 Pinouts
Figure 8 shows the OP6800 pinouts.
J1
R4
J1
R6
JP1
KP1
U1
C1
R2
R3
U2
C8 C9
C2
C3 C4
C5
RP1 RP2 RP3
RP6 RP7 RP8
Q5
R13 D12
D11
R11
R16
Q7
D13
R17
Q8
Flas h
Q9
EP ROM
R22
JP3
JP4
R26 C44
R39
C27
R38
R27
R41
U5
R8
RP9
R10
C30 C31
LNK
DS1
D7
R19
Q10
D8
R20
Q11
D9
R21
Q12
D10
U3
R25
C35
R24
C33
R28
R23
C34
C25
R15
C36
U4
Q6
R29
C45
U6
C37
C4 C17
U7
J2 C42
R31
C43
R11
C41
R13
J3
C39
C17
R32
RN1
RP4 D6
R14
C40
D14
Figure 8. OP6800 Pinouts
Header J1 is a standard 2 × 20 header with a nominal 0.1" pitch. The OP6800 also has an
RJ-45 Ethernet jack on the RabbitCore module.
16 MiniCom (OP6800)
3.2 Digital I/O
3.2.1 Digital Inputs
The OP6800 has eight digital inputs, IN00–IN07, each with a current-limiting resistor of
27 k
Ω
, and protected over a range of –36 V to +36 V. The inputs are all pulled up to +5 V
Vcc
Rabbit 2000
Microprocessor
GND
Figure 9. OP6800 Digital Inputs
The OP6800 also has five digital inputs, IN08–IN12, each with a current-limiting resistor of 12 k
Ω
, protected over a range of –25 V to +25 V, and pulled up to +5 V.
The actual switching threshold for IN00–IN12 is approximately 2.40 V. Anything below this value is a logic 0, and anything above is a logic 1
.
IN13–IN17 are connected in parallel with five of the keypad buttons. These inputs are normally pulled up, but pulling one of these inputs down is the equivalent of pressing the corresponding keypad key remotely.
Table 2. Remote Keypad Operation
Keypad Key
0 ( )
1 ( )
2 ( )
3 ( )
6 ( )
Remote Keypad
Signal Inputs
IN13
IN14
IN15
IN16
IN17
NOTE: Remote keypad signal inputs IN13–IN17 are not protected, and can only
handle a voltage range from 0 to +5 V. These inputs were designed solely to facilitate a remote keypad, and should not be used for other purposes.
User’s Manual 17
3.2.2 Digital Outputs
The OP6800 has 11 digital outputs, OUT00–OUT10, which can each sink up to 200 mA.
Figure 10 shows a wiring diagram for using the digital outputs.
OUT00–OUT06 can switch up to 40 V and the corresponding LEDs when the outputs are on. OUT07–OUT10 offer protection for inductive loads when K is connected to an external power supply; OUT07–OUT10 are not connected to the LEDs.
OUT00OUT06
Vcc
(0 40 V)
OUT07OUT10
K
(0 40 V)
Figure 10. OP6800 Digital Outputs
It is possible to use an external open-collector driver to control the LEDs associated with
OUT00–OUT06. Connect the external driver to the output corresponding to the LED you wish to control, but keep the internal driver turned off. The external driver will then control the LED.
18 MiniCom (OP6800)
3.3 Serial Communication
The OP6800 has two RS-232 serial ports, which can be configured as one RS-232 serial channel (with RTS/CTS) or as two RS-232 (3-wire) channels using the
serMode
software
function call. Table 3 summarizes the options.
Table 3. Serial Communication Configurations
Mode
0
1
B
RS-232, 3-wire
RS-232, 5-wire
Serial Port
C
RS-232, 3-wire
CTS/RTS
RS-485
RS-485
D
The OP6800 also has one RS-485 serial channel and one CMOS serial channel that serves as the programming port.
All four serial ports operate in an asynchronous mode. An asynchronous port can handle 7 or 8 data bits. A 9th bit address scheme, where an additional bit is sent to mark the first byte of a message, is also supported. Serial Port A, the programming port, can be operated alternately in the clocked serial mode. In this mode, a clock line synchronously clocks the data in or out. Either of the two communicating devices can supply the clock. The OP6800 boards typically use all four ports in the asynchronous serial mode. Serial Ports B and C are used for RS-232 communication, and Serial Port D is used for RS-485 communication. The OP6800 uses an 11.0592 MHz crystal, which is doubled to 22.1184 MHz. At this frequency, the OP6800 supports standard asynchronous baud rates up to a maximum of
230,400 bps.
3.3.1 RS-232
The OP6800 RS-232 serial communication is supported by an RS-232 transceiver. This transceiver provides the voltage output, slew rate, and input voltage immunity required to meet the RS-232 serial communication protocol. Basically, the chip translates the Rabbit
2000’s CMOS/TTL signals to RS-232 signal levels. Note that the polarity is reversed in an
RS-232 circuit so that a +5 V output becomes approximately -10 V and 0 V is output as
+10 V. The RS-232 transceiver also provides the proper line loading for reliable communication.
RS-232 can be used effectively at the OP6800’s maximum baud rate for distances of up to
15 m.
3.3.2 RS-485
The OP6800 has one RS-485 serial channel, which is connected to the Rabbit 2000 Serial
Port D through an RS-485 transceiver. The half-duplex communication uses the Rabbit
2000’s PB6 pin to control the transmit enable on the communication line.
The OP6800 can be used in an RS-485 multidrop network. Connect the 485+ to 485+ and
485– to 485– using single twisted-pair wires (nonstranded, tinned) as shown in Figure 11.
Note that a common ground is recommended.
User’s Manual 19
Figure 11. OP6800 Multidrop Network
The OP6800 comes with a 220
Ω
termination resistor and two 681
Ω
bias resistors installed and enabled with jumpers across pins 1–2 and 5–6 on header JP1, as shown in
Factory
Default
6
4
2
JP1
5
3
1
R6
JP1
KP1
R4
J1
U1
C1
R2
R3
U2
C8 C9
C2
U1
C3 C4
6
485+
RP1 RP2
RP6 RP7 RP8
1
JP1
C17
R32
RN1 bias
2
6 termination bias
RP4 D6
Q5
R13 D12
D11
R11
R16
Q7
D13
R17
Q8
Flas
EP h
ROM
R22
JP3
JP4
R26 C44
R39
C27
R38
R27
R41
U5
R8
RP9
R10
LNK
D7
DS1
R19
Q10
D8
R20
Q11
D9
R21
Q12
D10
U3
R25
C35
R24
C33
R28
R23
C34
C25
R15
C36
U4
Q6
R29
C45
U6
C37
C4 C17
U7
R14
C40
D14
C39
J2 C42
R31
C43
R13
J3
R13
681 W
R11
220 W
R6
681 W
Figure 12. RS-485 Termination and Bias Resistors
For best performance, the bias and termination resistors in a multidrop network should only be enabled on both end nodes of the network. Disable the termination and bias resistors on any intervening OP6800 units in the network by removing both jumpers from header JP1.
TIP: Save the jumpers for possible future use by “parking” them across pins 1–3 and 4–6 of header JP1. Pins 3 and 4 are not otherwise connected to the OP6800.
20 MiniCom (OP6800)
3.3.3 Programming Port
The RabbitCore module on the OP6800 has a 10-pin programming header. The programming port uses the Rabbit 2000’s Serial Port A for communication, and is used for the following operations.
•
Programming/debugging
•
Cloning
•
Remote program download/debug over an Ethernet connection via the RabbitLink
EG2100
The programming port is used to start the OP6800 in a mode where the OP6800 will download a program from the port and then execute the program. The programming port transmits information to and from a PC while a program is being debugged.
The Rabbit 2000 startup-mode pins (SMODE0, SMODE1) are presented to the programming port so that an externally connected device can force the OP6800 to start up in an external bootstrap mode. The OP6800 can be reset from the programming port via the
/EXT_RSTIN
line.
The Rabbit 2000 status pin is also presented to the programming port. The status pin is an output that can be used to send a general digital signal.
NOTE: Refer to the Rabbit 2000 Microprocessor User’s Manual for more information related to the bootstrap mode.
User’s Manual 21
3.3.4 Ethernet Port (OP6800 models only)
Figure 13 shows the pinout for the Ethernet port (J2 on the OP6800 module). Note that
there are two standards for numbering the pins on this connector—the convention used here, and numbering in reverse to that shown. Regardless of the numbering convention followed, the pin positions relative to the spring tab position (located at the bottom of the
RJ-45 jack in Figure 13) are always absolute, and the RJ-45 connector will work properly
with off-the-shelf Ethernet cables.
ETHERNET
1
8
RJ-45 Plug
1. E_Tx+
2. E_Tx
3. E_Rx+
6. E_Rx
RJ-45 Jack
Figure 13. RJ-45 Ethernet Port Pinout
RJ-45 pinouts are sometimes numbered opposite to the way shown in Figure 13.
Two LEDs are placed next to the RJ-45 Ethernet jack, one to indicate an Ethernet link
(
LNK
) and one to indicate Ethernet activity (
ACT
).
The transformer/connector assembly ground is connected to the BL2100 module printed circuit board digital ground via a 0
Ω
resistor “jumper,” R29, as shown in Figure 14.
RJ-45 Ethernet Plug
R29
Board
Ground
Chassis
Ground
Figure 14. Isolation Resistor R29
The factory default is for the 0
Ω
resistor “jumper” at R29 to be installed. In high-noise environments, remove R29 and ground the transformer/connector assembly directly through the chassis ground. This will be especially helpful to minimize ESD and/or EMI problems.
22 MiniCom (OP6800)
3.4 Memory
3.4.1 SRAM
The OP6800 module is designed to accept 128K to 512K of SRAM packaged in an SOIC case. The standard OP6800 modules come with 128K of SRAM.
3.4.2 Flash Memory
The OP6800 is also designed to accept 128K to 512K of flash memory. The standard
OP6800 modules comes with one 256K flash memory.
NOTE: Z-World recommends that any customer applications should not be constrained by the sector size of the flash memory since it may be necessary to change the sector size in the future.
A Flash Memory Bank Select jumper configuration option based on 0
Ω
surface-mounted resistors exists at header JP2 on the RabbitCore module. This option, used in conjunction with some configuration macros, allows Dynamic C to compile two different co-resident programs for the upper and lower halves of the 256K flash in such a way that both programs start at logical address 0000. This is useful for applications that require a resident download manager and a separate downloaded program. See Technical Note TN218,
Implementing a Serial Download Manager for a 256K Flash, for details.
User’s Manual 23
3.5 Keypad Labeling
The keypad may be labeled according to your needs. A template is provided in Figure 15
to allow you to design your own keypad label insert.
1.10
(28)
2.35
(60)
Figure 15. Keypad Template
Before you can replace the keypad legend, you will have to remove the LCD/keypad module from the plastic bezel. The LCD/keypad module circuit board is held down with two
screws and two tabs as shown in Figure 16.
Mounting screws
Mounting tabs
R4
J1
R6
JP1
KP1
U1
C1
R2
R3
U2
C8 C9
C2 C3 C4 C5
RP1 RP2 RP3
RP6 RP7 RP8
R11
R16
Q7
Q5
R13 D12
D11
D13
R17
Q8
Flas
EP h
ROM
R26 C44
R39
C27
R38
R27
R41
U5
JP3
R22
JP4
R8
RP9
R10
C30 C31
LNK
DS1
D7
R19
Q10
D8
R20
Q11
D9
R21
Q12
D10
Q6
R15
U3
R25
R24
C35
C33
R28
C25
R23
C34
C36
U4
R29
C45
U6
C37
C4 C17
U7
J2
C42
R31
C43
R11
C41
R13
J3
C39
C17
R32
RN1
RP4 D6
R14
C40
D14
Mounting screws
Mounting tabs
Figure 16. Removing LCD/Keypad Module from Plastic Bezel
To replace the keypad legend, remove the old legend and insert your new legend prepared
according to the template in Figure 15. The keypad legend is located under the blue keypad
matte, and is accessible from either the left side or the right side as shown in Figure 17. A
small screwdriver or a similar small pointed objectcan be used to nudge the keypad legend in or out.
24 MiniCom (OP6800)
Keypad label is located
under the blue keypad matte.
Figure 17. Removing and Inserting Keypad Label
Once you have replaced the keypad label, re-insert the LCD/keypad module circuit board
under the mounting tabs in the plastic bezel, as shown in Figure 16. Secure the LCD/key-
pad module circuit board with the two screws.
User’s Manual 25
26 MiniCom (OP6800)
4. S
OFTWARE
Dynamic C is an integrated development system for writing embedded software. It runs on an IBM-compatible PC and is designed for use with Z-World single-board computers and other devices based on the Rabbit microprocessor.
Chapter 4 provides the libraries, function calls, and sample programs related to the OP6800.
You have a choice of doing your software development in the flash memory or in the static
RAM included on the OP6800. The advantage of working in RAM is to save wear on the flash memory, which is limited to about 100,000 write cycles.
NOTE: An application can be developed in RAM, but cannot run standalone from RAM after the programming cable is disconnected. All standalone applications can only run from flash memory.
The disadvantage of using flash memory for debug is that interrupts must be disabled for approximately 5 ms whenever a break point is set in the program. This can crash fast interrupt routines that are running while you stop at a break point or single-step the program.
Flash memory or RAM is selected on the
Options
>
Compiler
menu.
Dynamic C provides a number of debugging features. You can single-step your program, either in C, statement by statement, or in assembly language, instruction by instruction.
You can set break points, where the program will stop, on any statement. You can evaluate watch expressions. A watch expression is any C expression that can be evaluated in the context of the program. If the program is at a break point, a watch expression can view any expression using local or external variables.
User’s Manual 27
4.1 Programming Cable
The programming cable has a level converter board in the middle of the cable since the
OP6800 programming port supports CMOS logic levels, and not the higher voltage RS-232 levels that are used by PC serial ports. When the programming cable is connected, Dynamic
C running on the PC can hard-reset the OP6800 and cold-boot it. The cold boot includes compiling and downloading a BIOS program that stays resident while you work. If you crash the target, Dynamic C will automatically reboot and recompile the BIOS if it senses that a target communication error occurred or that the BIOS source code has changed.
4.1.1 Switching Between Program Mode and Run Mode
The OP6800 is automatically in Program Mode when the programming cable is attached,
and is automatically in Run Mode when no programming cable is attached. See Figure 18.
Program Mode
Run Mode
R4
J1
R6
JP1
KP1
U1
C1
R2
R3
U2
C8 C9
C2 C3 C4 C5
RP1 RP2 RP3
RP6 RP7 RP8
Q5
R13
R11
R16
Q7
D13
R17
D12 D11
R18
ROM
R26 C44
R39
C27
R38
R27
R41
U5
JP3
R22
JP4
R8
RP9
R10
C30 C31
LNK
DS1
D7
R19
Q10
D8
R20
Q11
D9
R21
Q12
D10
Q6
R15
U3
R25
R24
C35
R23
C34
C25
C36
U4
R29
C45
U6
C37
C4 C17
U7
J2
PROG
C42
R31
C43
R11
C41
R13
J3
C39
RN1
RP4 D6
R14
C40
D14
R4
J1
R6
JP1
KP1
C1
U1
R2
R3
U2
C8 C9
C2 C3 C4 C5
RP1 RP2 RP3
RP6 RP7 RP8
Q5
R13 D12
R11
R16
Q7
D13
R17
D11
R18
ROM
R8
RP9
R10
C30 C31
LNK
DS1
D7
R19
Q10
D8
R20
Q11
D9
R21
Q12
D10
Q6
R15
R25
R24
R23
C34 R26 C44
R39
R27
R41
R38
C27
U5
R22
U3
C35
C25
C36
U4
R29
C45
U6
C37
C4 C17
U7
C39
R13
J2 C42
J3
RN1
RP4 D6
R14
C40
D14
Colored edge
DIAG
Programming Cable
To
PC COM port
RESET OP6800 when changing mode:
Remove, then reapply power
after removing or attaching programming cable.
Figure 18. OP6800 Program Mode and Run Mode Set-Up
4.1.2 Detailed Instructions: Changing from Program Mode to Run Mode
1. Disconnect the programming cable from header J1 of the OP6800 module.
2. Reset the OP6800 by unplugging the AC adapter, then plugging it back in.
The OP6800 is now ready to operate in the Run Mode.
4.1.3 Detailed Instructions: Changing from Run Mode to Program Mode
1. Attach the programming cable to header J1 of the OP6800 module.
2. Reset the OP6800 by unplugging the AC adapter, then plugging it back in. Alternatively, you may press
<Ctrl-Y>
on your PC if Dynamic C is running.
The OP6800 is now ready to operate in the Program Mode.
28 MiniCom (OP6800)
4.2 OP6800 Libraries
With Dynamic C running, click
File
>
Open
, and select
Lib
. The following list of
Dynamic C libraries and library directories will be displayed.
Four library directories provide function calls that are specific to the OP6800 or to its features.
•
OP6800
—libraries associated with OP6800 serial communication, I/O, and initialization. The functions in the
OP68xx.LIB
library are described in Appendix D, “OP6800
•
DISPLAYS\GRAPHIC
—libraries associated with the LCD display. The functions in
these libraries are described in Appendix D, “OP6800 Function APIs.”
•
KEYPADS
–libraries associated with the keypad. The functions in these libraries are
described in Appendix D, “OP6800 Function APIs.”
•
TCPIP
—libraries specific to using TCP/IP functions.
The functions in these libraries are described in the Dynamic C TCP/IP User’s Manual included in the manual set with the Dynamic C User’s Manual.
Other generic functions applicable to all devices based on the Rabbit 2000 microprocessor are described in the Dynamic C User’s Manual.
User’s Manual 29
4.3 Sample Programs
Sample programs are provided in the Dynamic C
Samples
folder. The sample program
PONG.C
demonstrates the output to the
STDIO
window.
The various directories in the
Samples
folder contain specific sample programs that illustrate the use of the corresponding Dynamic C libraries.
The
OP6800
folder provides sample programs specific to the OP6800. Each sample program has comments that describe the purpose and function of the program. Follow the instructions at the beginning of the sample program.
To run a sample program, open it with the
File
menu (if it is not still open), compile it using the
Compile
menu, and then run it by selecting
Run
in the
Run
menu. The OP6800
must be in Program mode (see Section 4.1, “Programming Cable,”) and must be con-
nected to a PC using the programming cable as described in Section 2.1, “Connections.”
More complete information on Dynamic C is provided in the Dynamic C User’s Manual.
TCP/IP specific functions are described in the Dynamic C TCP/IP User’s Manual. Infor-
mation on using the TCP/IP features and sample programs is provided in Section 5,
4.3.1 Board ID
The following sample program can be found in the
SAMPLES\OP6800
subdirectory.
•
BOARD_ID.C
—Detects the type of single-board computer and displays the information in the
STDIO
window. For the OP6800, the
STDIO
window should show
OP6800
.
4.3.2 Demonstration Board
The following sample programs are found in the
DEMO_BD
subdirectory in
SAMPLES\OP6800
.
•
BUZZER.C
—Demonstrates the use of the buzzer on the Demonstration Board. Remember to set the jumper across pins 1–2 of header JP1 on the Demonstration Board (see
Figure C-4) to enable the buzzer on. When you finish with
BUZZER.C
, it is recommended that you reconnect the jumper across pins 2–3 of header JP1 on the Demonstration Board to disable the buzzer.
•
KEYPAD.C
—Flashes the LED above a keypad button when the corresponding keypad button is pressed. The corresponding LED on the Demonstration Board will also flash if a keypad button in the top row of the keypad is pressed. A message is also displayed on the LCD.
•
SWITCHES.C
—Flashes the LED on the Demonstration Board and the OP6800 when the corresponding pushbutton switch on the Demonstration Board is pressed. A message is also displayed on the LCD.
30 MiniCom (OP6800)
4.3.3 Digital I/O
The following sample programs are found in the
IO
subdirectory in
SAMPLES\OP6800
.
•
DIGIN.C
—Demonstrates the use of the digital inputs. By pressing a pushbutton switch on the Demonstration Board, you can view an input channel toggle from HIGH to
LOW on your PC monitor. The four pushbutton switches correspond to IN00–IN03 on the OP6800. IN04–IN12 can also be toggled by momentarily grounding the inputs.
•
DIGOUT.C
—Demonstrates the use of the sinking high-current outputs. By pressing a pushbutton switch on the Demonstration Board, you can view an output channel toggle the corresponding LEDs on/off. The four pushbutton switches correspond to OUT07–
OUT10.
4.3.4 Serial Communication
The following sample programs are found in the
RS232
subdirectory in
SAMPLES\OP6800
.
•
PUTS.C
—Transmits and then receives an ASCII string on Serial Ports B and C. It also displays the serial data received from both ports in the
STDIO
window.
•
RELAYCHR.C
—This program echoes characters over Serial Port B to Serial Port C. It must be run with a serial utility such as Hyperterminal.
The following sample programs are found in the
RS485
subdirectory in
SAMPLES\OP6800
.
•
MASTER.C
—This program demonstrates a simple RS-485 transmission of lower case letters to a slave OP6800. The slave will send back converted upper case letters back to the master OP6800 and display them in the
STDIO
window. Use
SLAVE.C
to program the slave OP6800.
•
SLAVE.C
—This program demonstrates a simple RS-485 transmission of lower case letters to a slave OP6800. The slave will send back converted upper case letters back to the master OP6800 and display them in the
STDIO
window. Use
MASTER.C
to program the master OP6800.
4.3.5 LCD/Keypad Module Sample Programs
The following sample programs are found in the
122x32_1x7
subdirectory in
SAMPLES\LCD_Keypad
.
•
ALPHANUM.C
—Demonstrates how to create messages using the keypad and then displaying them on the LCD display.
•
COFTERMA.C
—Demonstrates cofunctions, the cofunction serial library, and using a serial ANSI terminal such as Hyperterminal from an available COM port connection.
•
DISPPONG.C
—Demonstrates output to LCD display.
•
DKADEMO1.C
—Demonstrates some of the LCD/keypad module font and bitmap manipulation features with horizontal and vertical scrolling, and using the
GRAPHIC.LIB
library.
•
FUN.C
—Demonstrates drawing primitive features (lines, circles, polygons) using the
GRAPHIC.LIB
library
User’s Manual 31
•
KEYBASIC.C
—Demonstrates the following keypad functions in the
STDIO
display window:
- default ASCII keypad return values.
- custom ASCII keypad return values.
- keypad repeat functionality.
•
KEYMENU.C
—Demonstrates how to implement a menu system using a highlight bar on a graphic LCD display. The menu options for this sample are as follows.
1. Set Date/Time
2. Display Date/Time
3. Turn Backlight OFF
4. Turn Backlight ON
5. Toggle LEDs
6. Increment LEDs
7. Disable LEDs
•
LED.C
—Demonstrates how to toggle the LEDs on the LCD/keypad module.
•
SCROLLING.C
—Demonstrates scrolling features of the
GRAPHIC.LIB
library.
•
TEXT.C
—Demonstrates the text functions in the
GRAPHIC.LIB
library. Here is a list of what is demonstrated.
1. Font initialization.
2. Text window initialization.
3. Text window, end-of-line wraparound, end-of-text window clipping, line feed, and carriage return.
4. Creating 2 different TEXT windows for display.
5. Displaying different FONT sizes.
4.3.6 TCP/IP Sample Programs
TCP/IP sample programs are described in Chapter 5.
32 MiniCom (OP6800)
4.4 Font and Bitmap Converter
A Font and Bitmap Converter tool is available to convert Windows fonts and monochrome bitmaps to a library file format compatible with Z-World’s Dynamic C applications and graphical displays. Non-Roman characters can also be converted by applying the monochrome bitmap converter to their bitmaps.
Start the Font and Bitmap Converter tool by double-clicking on the
fbmcnvtr.exe
file in the Dynamic C directory. You then select and convert existing fonts or bitmaps. Complete instructions are available via the
Help
menu that is in the Font and Bitmap Con-
verter tool.
Once you are done, the converted file is displayed in the editing window. Editing may be done, but should not be necessary. Save the file as
libraryfilename.lib
, where
libraryfilename
is a file name of your choice.
Add the library file(s) to applications with the statement
#use libraryfilename.lib
,
or by cutting and pasting from the library file(s) you created into the application program.
TIP: If you used the
#use libraryfilename.lib
statement, remember to enter
libraryfilename.lib
into
lib.dir
, which is located in your Dynamic C directory.
You are now ready to add the font or bitmap to your application using the
glXFontInit
or the
glXPutBitmap
function calls.
User’s Manual 33
34 MiniCom (OP6800)
5. U
SING THE
TCP/IP F
EATURES
Chapter 5 discusses using the TCP/IP features on the OP6800 boards. The TCP/IP feature is not available on OP6810 versions.
5.1 TCP/IP Connections
Before proceeding you will need to have the following items.
•
If you don’t have an Ethernet connection, you will need to install a 10Base-T Ethernet card (available from your favorite computer supplier) in your PC.
•
Two RJ-45 straight-through Ethernet cables and a hub, or an RJ-45 crossover Ethernet cable.
The Ethernet cables and Ethernet hub are available from Z-World in a TCP/IP tool kit.
More information is available at www.zworld.com.
1. Connect the AC adapter and the programming cable as shown in Chapter 2, “Getting
2. Ethernet Connections
•
If you do not have access to an Ethernet network, use a crossover Ethernet cable to connect the OP6800 to a PC that at least has a 10Base-T Ethernet card.
•
If you have an Ethernet connection, use a straight-through Ethernet cable to establish an Ethernet connection to the OP6800 from an Ethernet hub. These connections are
OP6800
Board
OP6800
Board
User’s PC
Ethernet crossover cable
Direct Connection
(Network of 2 computers)
Ethernet cables
Hub
To additional network elements
Direct Connection Using a Hub
Figure 19. Ethernet Connections
User’s Manual 35
3. Apply Power
Plug in the AC adapter. The OP6800 is now ready to be used.
NOTE: A hardware RESET is accomplished by unplugging the AC adapter, then plugging it back in, or by momentarily grounding the board reset input at pin 9 on screw terminal header J2.
The green
LNK
light on the OP6800 Rabbitcore module is on when the OP6800 is properly connected either to an Ethernet hub or to an active Ethernet card. The orange
ACT
light flashes each time a packet is received.
36
MiniCom (OP6800)
5.2 TCP/IP Sample Programs
We have provided a number of sample programs demonstrating various uses of TCP/IP for networking embedded systems. These programs require that you connect your PC and the
OP6800 together on the same network. This network can be a local private network (preferred for initial experimentation and debugging), or a connection via the Internet.
5.2.1 How to Set IP Addresses in the Sample Programs
With the introduction of Dynamic C 7.30 we have taken steps to make it easier to run many of our sample programs. You will see a
TCPCONFIG
macro. This macro tells
Dynamic C to select your configuration from a list of default configurations. You will have three choices when you encounter a sample program with the
TCPCONFIG
macro.
1. You can replace the
TCPCONFIG
macro with individual
MY_IP_ADDRESS
,
MY_NETMASK
,
MY_GATEWAY
, and
MY_NAMESERVER
macros in each program.
2. You can leave
TCPCONFIG
at the usual default of 1, which will set the IP configurations to
10.10.6.100
, the netmask to
255.255.255.0
, and the nameserver and gateway to
10.10.6.1
. If you would like to change the default values, for example, to use an IP address of
10.1.1.2
for the Coyote board, and
10.1.1.1
for your PC, you can edit the values in the section that directly follows the “General Configuration” comment in the
TCP_CONFIG.LIB
library. You will find this library in the
LIB\TCPIP
directory.
3. You can create a
CUSTOM_CONFIG.LIB
library and use a
TCPCONFIG
value greater than 100. Instructions for doing this are at the beginning of the
TCP_CONFIG.LIB
library in the
LIB\TCPIP
directory.
There are some other “standard” configurations for
TCPCONFIG
that let you select different features such as DHCP. Their values are documented at the top of the
TCP_CONFIG.LIB
library in the
LIB\TCPIP
directory. More information is available in the Dynamic C TCP/IP User’s Manual.
IP Addresses Before Dynamic C 7.30
Most of the sample programs use macros to define the IP address assigned to the board and the IP address of the gateway, if there is a gateway.
#define MY_IP_ADDRESS "216.112.116.155"
#define MY_NETMASK "255.255.255.248"
#define MY_GATEWAY "216.112.116.153"
In order to do a direct connection, the following IP addresses can be used for the OP6800:
#define MY_IP_ADDRESS "10.1.1.2"
#define MY_NETMASK "255.255.255.248"
// #define MY_GATEWAY "216.112.116.153"
In this case, the gateway is not used and is commented out. The IP address of the board is defined to be 10.1.1.2. The IP address of your PC can be defined as 10.1.1.1.
User’s Manual 37
5.2.2 How to Set Up your Computer’s IP Address for a Direct Connection
When your computer is connected directly to the OP6800 via an Ethernet connection, you need to assign an IP address to your computer. To assign the PC the address 10.1.1.1 with the subnetmask 255.255.255.248 under Windows 98, do the following.
Click on
Start > Settings > Control Panel
to bring up the Control Panel, and then double-click the Network icon. Depending on which version of Windows you are using, look for the
TCP/IP Protocol/Network > Dial-Up Connections/Network
line or tab.
Double-click on this line or select
Properties
or
Local Area Connections > Properties
to bring up the TCP/IP properties dialog box. You can edit the IP address and the subnet mask directly. (Disable “obtain an IP address automatically”.) You may want to write down the existing values in case you have to restore them later. It is not necessary to edit the gateway address since the gateway is not used with direct connect.
IP 10.1.1.1
Subnet mask
255.255.255.248
OP6800
Board
User’s PC
Ethernet crossover cable
#define MY_IP_ADDRESS "10.1.1.2"
#define MY_NETMASK "255.255.255.248"
Direct Connection PC to OP6800
38
MiniCom (OP6800)
5.2.3 Run the
PINGME.C
Demo
In order to run this program, edit the IP address and netmask in the
PINGME.C
program
(
SAMPLES\TCPIP\ICMP
) to the values given above (10.1.1.2 and 255.255.255.248).
Compile the program and start it running under Dynamic C. The crossover cable is connected from your computer’s Ethernet adapter to the OP6800’s RJ-45 Ethernet connector.
When the program starts running, the green
LNK
light on the OP6800 should be on to indicate an Ethernet connection is made. (Note: If the
LNK
light does not light, you may not have a crossover cable, or if you are using a hub perhaps the power is off on the hub.)
The next step is to ping the board from your PC. This can be done by bringing up the MS-
DOS window and running the ping program:
ping 10.1.1.2
or by
Start > Run
and typing the command
ping 10.1.1.2
Notice that the orange
ACT
light flashes on the OP6800 while the ping is taking place, and indicates the transfer of data. The ping routine will ping the board four times and write a summary message on the screen describing the operation.
5.2.4 Running More Demo Programs With a Direct Connection
The program
SSI.C
(
SAMPLES\OP6800\TCPIP\
) demonstrates how to make the
OP6800 a Web server. This program allows you to turn the LEDs on an attached Demonstration Board from the Tool Kit on and off from a remote Web browser. In order to run these sample programs, edit the IP address as for the pingme program, compile the program and start it executing. Then bring up your Web browser and enter the following server address: http://10.1.1.2.
This should bring up the Web page served by the sample program.
The sample program
TELNET.C
(
SAMPLES\OP6800\TCPIP\
) allows you to communicate with the OP6800 using the Telnet protocol. To run this program, edit the IP address, compile the program, and start it running. Run the Telnet program on your PC (
Start >
Run telnet 10.1.1.2
). Each character you type will be printed in Dynamic C's
STDIO
window, indicating that the board is receiving the characters typed via TCP/IP.
User’s Manual 39
5.2.5 LCD/Keypad Sample Programs Showing TCP/IP Features
The following sample programs, found in the
TCPIP
subdirectory in
SAMPLES/LCD_Keypad/122x32_1x7
, are targeted at the Ethernet-enabled versions of the OP6800. Remember to configure the IP address, netmask, and gateway as indicated in the sample programs.
•
MBOXDEMO.C
—This program implements a web server that allows Web e-mail messages to be entered that are then shown on the LCD display. The keypad allows you to scroll within messages, flip to other e-mails, mark messages as read, and delete e-mails.
When a new e-mail arrives, an LED turns on, and turns off once the message has been marked as read. A log of all e-mail actions is kept, and can be displayed in the Web browser. All current e-mails can also be read with the Web browser.
When using
MBOXDEMO.C
, connect the OP6800 and a PC (or other device with a Web
Browser) to an Ethernet. If you connect the PC and the OP6800 directly, be sure to use a crossover Ethernet cable; straight-through Ethernet cables and a hub may be used instead.
•
TCP_RESPOND.C
—This program and
TCP_SEND.C
are executed on two separate single-board computers to demonstrate how the two boards communicate with each other.
Use
PCSEND.EXE
on the PC console side at the command prompt if you do not have a second board.
PCSEND.EXE
is located with source code in the
SAMPLES/LCD_Keypad/Windows
directory.
TCP_RESPOND.C
waits for a message from another single-board computer. The message received is displayed on the LCD, and you may respond by pressing a key on the keypad. The response is then sent to the remote single-board computer.
•
TCPSEND.C
—This program and
TCP_RESPOND.C
are executed on two separate singleboard computers to demonstrate how the two boards communicate with each other. Use
PCRESPOND.EXE
on the PC console side at the command prompt if you do not have a second board.
PCRESPOND.EXE
is located with source code in the
SAMPLES/LCD_Keypad/Windows
directory.
When a key on the keypad is pressed, a message associated with that key is sent to a specified destination address and port. The destination then responds to that message.
The response is displayed on the LCD.
Note that only the
LEFT
and
UP
scroll keys are set up to cause a message to be sent.
When using
TCPSEND.C
and
TCP_RESPOND.C
, connect the OP6800 and the other singleboard computer to an Ethernet. If you connect the them directly, be sure to use a crossover
Ethernet cable; straight-through Ethernet cables and a hub may be used instead.
40
MiniCom (OP6800)
5.3 Where Do I Go From Here?
NOTE: If you purchased your OP6800 through a distributor or Z-World partner, contact the distributor or Z-World partner first for technical support.
If there are any problems at this point:
•
Check the Z-World Technical Bulletin Board at www.zworld.com/support/bb/.
•
Use the Technical Support e-mail form at www.zworld.com/support/support_submit.html.
If the sample programs ran fine, you are now ready to go on.
Additional sample programs are described in the Dynamic C TCP/IP User’s Manual.
Refer to the Dynamic C TCP/IP User’s Manual to develop your own applications. An
Introduction to TCP/IP provides background information on TCP/IP, and is available on
Z-World’s Web site.
User’s Manual 41
42
MiniCom (OP6800)
6. I
NSTALLATION AND
M
OUNTING
G
UIDELINES
Chapter 6 describes some considerations for mounting the
OP6800 in a panel, and includes detailed mounting instructions.
6.1 Installation Guidelines
When possible, following these guidelines when mounting an OP6800.
1. Leave sufficient ventilation space.
2. Do not install the OP6800 directly above machinery that radiates a lot of heat (for example, heaters, transformers, and high-power resistors).
3. Leave at least 8" (20 cm) distance from electric power lines and even more from highvoltage devices.
4. When installing the OP6800 near devices with strong electrical or magnetic fields (such as solenoids), allow a least 3" (8 cm), more if necessary.
The OP6800 has strong environmental resistance and high reliability, but you can maximize system reliability by avoiding or eliminating the following conditions at the installation site.
•
Abrupt temperature changes and condensation
•
Ambient temperatures exceeding a range of 0°C to 50°C
•
Relative humidity exceeding a range of 5% to 95%
•
Strong magnetism or high voltage
•
Corrosive gasses
•
Direct vibration or shock
•
Excessive iron dust or salt
•
Spray from harsh chemicals
User’s Manual 43
6.2 Mounting Instructions
A bezel and a gasket are included with the OP6800. When properly mounted in a panel, the bezel of the OP6800 is designed to meet NEMA 4 specifications for water resistance.
Since the OP6800 employs an LCD display, the viewing angle must be considered when mounting the display. Install the OP6800 at a height and angle that makes it easy for the operator to see the screen.
6.2.1 Bezel-Mount Installation
This section describes and illustrates how to bezel-mount the OP6800. Follow these steps for bezel-mount installation.
1. Cut mounting holes in the mounting panel in accordance with the recommended dimen-
sions in Figure 20, then use the bezel faceplate to mount the OP6800 onto the panel.
0.125 D, 4x
(3)
CUTOUT
0.230
(5.8)
2.870
(72.9)
3.100
(78.8)
Figure 20. Recommended Cutout Dimensions
2. Remove the standoffs added to the OP6800 as described in Chapter 2, “Getting
Started.” The standoffs were used to prop up the OP6800 beside the Demonstration
Board, and are not needed to mount the OP6800.
3. Carefully “drop in” the OP6800 with the bezel and gasket attached.
44
MiniCom (OP6800)
4. Fasten the unit with the four 4-40 screws and washers included with the OP6800. If your panel is thick, use a 4-40 screw that is approximately 3/16" (5 mm) longer than the thickness of the panel.
OP6800 Bezel/Gasket
Panel
R4
J1
R6
JP1
KP1
U1
C1
R2
R3
U2
C8 C9
C2 C3 C4 C5
RP1 RP2 RP3
RP6 RP7 RP8
R11
R16
Q7
Q5
R13
D12 D11
D13
R17
Q8
Flas
EP h
ROM
R26 C44
R39
C27
R38
R27
R41
U5
JP3
R22
JP4
R8
RP9
R10
C30 C31
LNK
DS1
D7
R19
Q10
D8
R20
Q11
D9
R21
Q12
D10
Q6
R15
U3
R25
C35
R24
C33
R28
C25
R23
C34
C36
U4
R29
C45
U6
C37
C4 C17
J2
U7
C42
R31
C43
R11
C41
R13
J3
C39
RN1
RP4
D6
R14
C40
D14
Figure 21. OP6800 Mounted in Panel (rear view)
Carefully tighten the screws until the gasket is compressed and the plastic bezel faceplate is touching the panel.
Do not tighten each screw fully before moving on to the next screw. Apply only one or two turns to each screw in sequence until all are tightened manually as far as they can be so that the gasket is compressed and the plastic bezel faceplate is touching the panel.
User’s Manual 45
46
MiniCom (OP6800)
A
PPENDIX
A. S
PECIFICATIONS
Appendix A provides the specifications for the OP6800 and describes the conformal coating.
User’s Manual 47
A.1 Electrical and Mechanical Specifications
Figure A-1 shows the mechanical dimensions for the OP6800.
R4
J1
R6
JP1
KP1
C1
U1
R2
R3
U2
C8 C9
C2 C3 C4 C5
RP1 RP2 RP3
RP6 RP7 RP8
Q5
R13
D12 D11
R11
R16
Q7
D13
R17
Q8
Flas
EP h
ROM
R26 C44
R39
C27
R38
R27
R41
U5
JP3
R22
JP4
R8
RP9
R10
C30 C31
LNK
DS1
D7
R19
Q10
D8
R20
Q11
D9
R21
Q12
D10
U3
R25
C35
R24
C33
R28
C25
R23
C34
R15
C36
U4
Q6
R29
C45
U6
C37
C4 C17
J2
U7
C42
R31
C43
R11
C41
R13
J3
C39
C17
R32
RN1
R14
RP4 D6
C40
D14
2.60
(66)
(0,0) for Pin 1 coordinates
1.10
(28)
0.23
(5.8)
3.60
(91)
Figure A-1. OP6800 Dimensions
NOTE: All measurements are in inches followed by millimeters enclosed in parentheses.
Table A-1 provides the pin 1 locations for the OP6800 headers as viewed in Figure A-1.
Table A-1. OP6800 Header J1
Pin 1 Locations
Header
J1
Pin 1 (x,y) Coordinates
(inches)
(-2.101, 2.720)
48 MiniCom (OP6800)
It is recommended that you allow for an “exclusion zone” of 0.25" (6 mm) around the
OP6800 in all directions when the OP6800 is incorporated into an assembly that includes other components. This “exclusion zone” that you keep free of other components and boards will allow for sufficient air flow, and will help to minimize any electrical or EMI
interference between adjacent boards. Figure A-2 shows this “exclusion zone.”
Exclusion
Zone
3.60
(91)
4.50
(114)
Figure A-2. OP6800 “Exclusion Zone”
User’s Manual 49
Table A-2 lists the electrical, mechanical, and environmental specifications for the OP6800.
Feature
Microprocessor
Ethernet Port
Flash EPROM
SRAM
Backup Battery
Keypad/Display
LEDs
Digital Inputs
Digital Outputs
Serial Ports
Serial Rate
Connectors
Real-Time Clock
Timers
Watchdog/Supervisor
Power
Temperature
Humidity
Board Size
Bezel Size
Table A-2. OP6800 Specifications
OP6800 OP6810
Rabbit 2000
®
at 22.1 MHz
10Base-T, RJ-45 None
256K
128K
Connection for user-supplied battery (to support RTC and SRAM)
122 × 32 pixel graphic LCD (with programmable backlight), user-relegendable keypad with 7-key/7-LED interface
7 hardware- or software-driven: 1 red, 4 green, 2 yellow
13 total: 8 protected to ± 36 V DC, 5 protected to ± 25 V DC
11 total: sink 200 mA, 40 V DC max.,
4 with built-in inductive load-protection diode
4 serial ports:
•
two 3-wire RS-232 or one RS-232 (with CTS/RTS)
•
one RS-485, onboard network termination and bias resistors
•
one 5 V CMOS-compatible programming port
Max. burst rate = CLK/32
Max. sustained rate = CLK/64 one RJ-45 (Ethernet) one 2 × 20, 0.1" pitch IDC header one 2 × 20, 0.1" pitch IDC header
Yes
Five 8-bit timers, one 10-bit timer with two match registers, five timers are cascadable
Yes
9 V to 36 V DC, 1.5 W max.
Operating Range: 0°C to +50°C
Storage Range: –40°C to +85°C
5% to 95%, noncondensing
2.60" × 3.00" × 1.10"
(66 mm × 76 mm × 28 mm)
4.50" × 3.60" × 0.23"
(114 mm × 91 mm × 6 mm)
50 MiniCom (OP6800)
A.2 Conformal Coating
The areas around the crystal oscillator and the battery backup circuit on the OP6800 module have had the Dow Corning silicone-based 1-2620 conformal coating applied. The con-
formally coated areas are shown in Figure A-3. The conformal coating protects these
high-impedance circuits from the effects of moisture and contaminants over time.
R4
J1
R6
JP1
KP1
U1
C1
R2
R3
U2
C8 C9
C2 C3 C4 C5
RP1 RP2
RP3
RP6 RP7 RP8
R11
R16
Q7
Q5
R13 D12
D11
D13
R17
Q8
Flas
EP h
ROM
R26 C44
R39
C27
R38
R27
R41
U5
JP3
R22
JP4
R8
RP9
R10
C30 C31
LNK
DS1
D7
R19
Q10
D8
R20
Q11
D9
R21
Q12
D10
Q6
R15
U3
R25
C35
R24
C33
R28
C25
R23
C34
C36
U4
R29
C45
U6
C37
C4 C17
J2
U7
C42
R31
C43
R11
C41
R13
J3
C39
RN1
R14
RP4
D6
C40
D14
Conformally coated area
Figure A-3. OP6800 Areas Receiving Conformal Coating
Any components in the conformally coated area may be replaced using standard soldering procedures for surface-mounted components. A new conformal coating should then be applied to offer continuing protection against the effects of moisture and contaminants.
NOTE: For more information on conformal coatings, refer to Rabbit Semiconductor
Technical Note 303, Conformal Coatings.
User’s Manual 51
A.3 Jumper Configurations
Figure A-4 shows the header locations used to configure the various OP6800 options via jumpers.
6
4
2
JP1
5
3
1
Figure A-4. Location of BL2100 Configurable Positions
Table A-3 lists the configuration options.
Table A-3. OP6800 Jumper Configurations
Header Description Pins Connected
Factory
Default
JP1
RS-485 Bias and Termination
Resistors
1–2
5–6
1–3
4–6
Bias and termination resistors connected
Bias and termination resistors not connected
*
×
* Although pins 1–3 and 4–6 of header JP1 are shown “jumpered” for the termination and bias resistors not connected, pins 3 and 4 are not actually connected to anything, and this configuration is a “parking” configuration for the jumpers so that they will be readily available should you need to enable the termination and bias resistors in the future.
52 MiniCom (OP6800)
A.4 Use of Rabbit 2000 Parallel Ports
Figure A-5 shows the Rabbit 2000 parallel ports.
PA0PA7
PB0, PB2,
PB4, PB5 PB7
PD0PD1,
PD5 PD3PD4
PC0, PC2
PC1, PC3
PC6 + 1 more output
PB1, PC7, RES_IN
+ 2 more inputs
4 Ethernet signals
2 LED outputs
/RESET
Port A
Programming
Port
(Serial Port A)
Ethernet
Port
Misc. I/O
RAM
R
ABBIT
2000
Real-Time Clock
Watchdog
7 Timers
Slave Port
Clock Doubler
Backup Battery
Support
Port E
Address Lines
I/O Control
Data Lines
Flash
PE0PE1,
PE7
PE4PE5
A0A3
IORD
IOWR
D0D7
PA3
PA4
PA5
PA6
PA7
Port
PA0
PA1
PA2
PB0
PB1
PB2
PB3
Figure A-5. OP6800 Rabbit-Based Subsystems
Table A-4 lists the Rabbit 2000 parallel ports and their use in the OP6800.
Table A-4. Use of Rabbit 2000 Parallel Ports
Input
Input
Input
Input
Input
I/O
Input
Input
Input
Input
Input
Input
Input
IN04
IN05
IN06
IN07
IN00
IN01
IN02
IN03
IN08
Not Used
IN09
IN10
Signal Output Function State
Pulled up
Pulled up
Pulled up
Pulled up
Pulled up
Pulled up
Pulled up
Pulled up
Pulled up
Pulled up
Pulled up
Pulled up
User’s Manual 53
54
Port
PB4
PB5
PB6
PB7
PC0
PC1
PC2
PC3
PC4
PC5
PC6
PC7
PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
PE0
PE1
PE2
PE3
PE4
PE5
PE6
PE7
Table A-4. Use of Rabbit 2000 Parallel Ports (continued)
I/O
Input
Output
Input
Output
Input
Input
Output
Input
Output
Input
Input
Output
Output
Output
Input
Output
Output
Output
N/A
Output
N/A
Output
Input
Output
Output
Output
Input
Output
Output
Input
N/A
Output
Output
Signal
IN11
Connected to PB7
Not Used
Connected to PB5
TXD RS-485
RXD RS-485
RTS/TXC RS-232
Serial Port D
Serial Port C
CTS/RXC RS-232
TPOUT– (Realtek reset)
TPOUT+ (Realtek INT0)
TXA Programming Port
Serial Port A
RXA Programming Port
Realtek CLK (OP6800)
Not used (OP6810)
Realtek SDO (OP6800)
Not used (OP6810)
Not used
OUT07
ATXB RS-232
ARXB RS-232
Not used
Not used
Serial Port B
RS-485 control register
OUT08
Realtek IORB strobe (OP6800)
Not used (OP6810)
Realtek SDI line (OP6800)
Not used (OP6810)
OUT09
OUT10
Realtek IOWB strobe (OP6800)
Not used (OP6810)
LCD_KEYPAD strobe
Output Function State
Pulled up
Driven by PB7
Low
Low
Inactive high
Inactive high
Inactive high
Inactive high
Initialized by
sock_init
Pulled up
Inactive high
Pulled up
Initialized by
sock_init
Low
Initialized by
sock_init
Low
Low
Low (output driver off)
Inactive high
Inactive high
Low
Low
Low (Tx disabled)
Low (output driver off)
Initialized by
sock_init
Low
Initialized by
sock_init
Low
Low (output driver off)
Low (output driver off)
Initialized by
sock_init
Low
Inactive high
MiniCom (OP6800)
A.5 I/O Address Assignments
Table A-5 lists the external I/O addresses for the display and keypad I/O.
Table A-5. Display and Keypad Output Addresses
External
Address
E000–E007
E008
E00A
E00B
Name
LCD
EN
KPEN
LED
Function
LCD control
Output enable for LEDs
Read keypad and IN12
LED0–LED6 and LCD backlight
PE7 serves as a system-enable control and LCD/keypad strobe. When PE7 is high or in a high-impedance status, all OP6800 outputs are disabled (digital outputs and display outputs are disabled, and RS-485 is at listen status).
User’s Manual 55
56 MiniCom (OP6800)
A
PPENDIX
B. P
OWER
S
UPPLY
Appendix B describes the power circuitry provided on the
OP6800.
B.1 Power Supplies
Power is supplied to the OP6800 via pins 20 and 21 of header J1, which is connected by a ribbon cable to either the Demonstration Board or to your system. The OP6800 is pro-
tected against reverse polarity by a diode at D6 as shown in Figure B-1.
J1
20
+RAW
D6
21
SWITCHING POWER REGULATOR
VIN
C40
47 µF
7
6
U4
LM2675
4
8
1
5
C36
10 nF
47 µH
L1
D14
1N5819
Vcc
C39
47 µF
Figure B-1. OP6800 Power Supply
The input voltage range is from 9 V to 36 V. A switching power regulator is used to provide a Vcc of +5 V for the OP6800 logic circuits. Vcc is not accessible to the user.
NOTE: In addition to supplying +RAW to the OP6800 switching power regulator, the
Demonstration Board has its own independent linear power regulator to supply the electronics in the demonstration area of the Demonstration Board. See Appendix C for more information.
User’s Manual 57
B.2 Batteries and External Battery Connections
The SRAM and the real-time clock have provision for battery backup. Power to the SRAM and the real-time clock (VRAM) is provided by two different sources, depending on whether the main part of the OP6800 is powered or not. When the OP6800 is powered normally, and
Vcc is within operating limits, the SRAM and the real-time clock are powered from Vcc. If power to the board is lost or falls below 4.63 V, the VRAM and real-time clock power must come from a backup battery in your system which you would connect to pin 40 of header J1 on the OP6800 via the ribbon cable. The backup battery should be able to supply 2.85 V–
3.15 V at 10
µ
A.
The reset generator circuit controls the source of power by way of its
/RESET
output signal.
B.2.1 Battery-Backup Circuit
Figure B-1 shows the battery-backup circuit located on the OP6800 module.
External Battery
VBAT
J1:40
D3
VBAT
D2
Vcc
R39
2 kW
RT1
T thermistor
VRAM
R41
22 kW
47 kW
D1
R38
10 kW
R37
22 kW
C17
10 nF
R36
47 kW
C27
10 nF
VOSC
Figure B-1. OP6800 Backup Battery Circuit
The battery-backup circuit serves three purposes:
•
It reduces the battery voltage to the SRAM and to the real-time clock, thereby limiting the current consumed by the real-time clock and lengthening the battery life.
•
It ensures that current can flow only out of the battery to prevent charging the battery.
•
A voltage, VOSC, is supplied to U6, which keeps the 32.768 kHz oscillator working when the voltage begins to drop.
VRAM and Vcc are nearly equal (<100 mV, typically 10 mV) when power is supplied to the OP6800.
58 MiniCom (OP6800)
B.2.2 Power to VRAM Switch
The VRAM switch on the OP6800 module, shown in Figure B-1, allows the battery
backup to provide power when the external power goes off. The switch provides an isolation between Vcc and the battery when Vcc goes low. This prevents the Vcc line from draining the battery.
VCC
R33
0 W
VRAM
Q5
FDV302P
R30
10 kW
/RESET
R17
22 kW
Q2
MMBT3904
Figure B-1. VRAM Switch
Field-effect transistor Q5 is needed to provide a very small voltage drop between Vcc and
VRAM (<100 mV, typically 10 mV) so that the board components powered by Vcc will not have a significantly different voltage than VRAM.
When the OP6800 is not in reset, the
/RESET
line will be high. This turns on Q2, causing its collector to go low. This turns on Q5, allowing VRAM to nearly equal Vcc.
When the OP6800 is in reset, the
/RESET
line will go low. This turns off Q2 and Q5, providing an isolation between Vcc and VRAM.
B.2.3 Reset Generator
The OP6800 module uses a reset generator on the module, U1, to reset the Rabbit 2000 microprocessor when the voltage drops below the voltage necessary for reliable operation.
The reset occurs between 4.50 V and 4.75 V, typically 4.63 V.
User’s Manual 59
B.3 Chip Select Circuit
Figure B-1 shows a schematic of the chip select circuit located on the OP6800 module.
VRAM
R28 100 kW
/CSRAM
/CS1
Q4
Q3
VRAM
SWITCH
/RESET_OUT
Figure B-1. Chip Select Circuit
The current drain on the battery in a battery-backed circuit must be kept at a minimum.
When the OP6800 is not powered, the battery keeps the SRAM memory contents and the real-time clock (RTC) going. The SRAM has a powerdown mode that greatly reduces power consumption. This powerdown mode is activated by raising the chip select (CS) signal line. Normally the SRAM requires Vcc to operate. However, only 2 V is required for data retention in powerdown mode. Thus, when power is removed from the circuit, the battery voltage needs to be provided to both the SRAM power pin and to the CS signal line. The CS control circuit accomplishes this task for the SRAM’s chip select signal line.
In a powered-up condition, the CS control circuit must allow the processor’s chip select signal /CS1 to control the SRAM’s CS signal /CSRAM. So, with power applied, /CSRAM must be the same signal as /CS1, and with power removed, /CSRAM must be held high
(but only needs to be battery voltage high). Q3 and Q4 are MOSFET transistors with complementary polarity. They are both turned on when power is applied to the circuit. They allow the CS signal to pass from the processor to the SRAM so that the processor can periodically access the SRAM. When power is removed from the circuit, the transistors will turn off and isolate /CSRAM from the processor. The isolated /CSRAM line has a 100 k
Ω pullup resistor to VRAM (R28). This pullup resistor keeps /CSRAM at the VRAM voltage level (which under no power condition is the backup battery’s regulated voltage at a little more than 2 V).
Transistors Q3 and Q4 are of opposite polarity so that a rail-to-rail voltage can be passed.
When the /CS1 voltage is low, Q3 will conduct. When the /CS1 voltage is high, Q4 conducts. It takes time for the transistors to turn on, creating a propagation delay. This propagation delay is typically very small, about 10 ns to 15 ns.
60 MiniCom (OP6800)
A
PPENDIX
C. D
EMONSTRATION
B
OARD
Appendix C describes the features and accessories of the Demonstration Board, and explains the use of the Demonstration
Board to demonstrate the OP6800 and to build prototypes of your own circuits.
User’s Manual 61
C.1 Mechanical Dimensions and Layout
Figure C-1 shows the mechanical dimensions and layout for the OP6800 Demonstration Board.
0 V T IN12 IN13 IN14 IN15 IN16 IN17 VBA 1 IN09 IN00 IN01 IN02 IN03 IN04 IN05
J4
J2
0 V
IN04
IN02
IN00
+RAW
OUT10
OUT08
OUT06
OUT04
OUT02
OUT00
RxB
RxC
485
VBAT
IN16
IN14
IN12
IN10
IN08
IN06
J1
IN17
IN15
IN13
LS1
IN11
IN09
IN07
IN05
Buzzer
IN03
IN01
GND
+K
OUT09
OUT07
OUT05
C1
1
HOT!
3
OUT03
OUT01
GND
TxB
C2
U1
C3
TxC
+485
J3
0 V
+5 V
GND
+5 V GND
+5 V GND
+RAW
+5 V
GND
J5
GND +RAW TxB RxB TxC RxC + RS485
0 V
+5 V
GND
+RAW +K
GND
+5 V
+K
J11
J6
+K OUT10 OUT09 OUT08 OUT07 OUT06 OUT05 OUT04 OUT03 OUT02 OUT01 OUT00
J10
J8
Figure C-1. OP6800 Demonstration Board Dimensions
Table C-1 lists the electrical, mechanical, and environmental specifications for the Dem-
onstration Board.
Table C-1. Demonstration Board Specifications
Parameter Specification
Board Size
Operating Temperature
Humidity
Input Voltage
3.40" × 4.20" × 1.19" (87 mm × 107 mm × 30 mm)
–40°C to +70°C
5% to 95%, noncondensing
7.5 V to 25 V DC
Maximum Current Draw
(including user-added circuits)
140 mA at 12 V and 25°C, 100 mA at 12 V and 70ºC
Prototyping Area
Standoffs/Spacers
1.7" × 2.1" (43 mm × 53 mm) through hole, 0.1" spacing
4, accept 4-40 x 11/8 screws
62 MiniCom (OP6800)
C.2 Power Supply
The OP6800 requires an unregulated +RAW power input of 9 V to 36 V DC, which can be supplied from the Demonstration Board through the ribbon cable connection. The OP6800 has its own switching voltage regulator.
Figure C-2 shows the distribution of the +RAW input power to the OP6800 through the
Demonstration Board. The reference grounds on the OP6800, GND, and on the Demonstration Board, 0 V, are tied together at one connection point only to avoid creating a ground loop, which could lead to considerable electromagnetic interference.
Demonstration Board
Linear
Regulator
+5 V
0 V
OP6800
Switching
Regulator
+5 V
GND
Figure C-2. Power Distribution to OP6800 and Demonstration Board
User’s Manual 63
The Demonstration Board has an onboard LM7805 linear regulator for the circuits on the
Demonstration Board only. Its major drawback is its inefficiency, which is directly proportional to the voltage drop across it. The voltage drop creates heat and wastes power.
You may wish to use a switching power supply in your applications where better efficiency is desirable. The LM2575 is an example of an easy-to-use switching voltage regulator. This part greatly reduces the heat dissipation of the regulator. The drawback in using a switching voltage regulator is its higher cost.
J5
2
1
+RAW
C1
10 mF
LINEAR POWER SUPPLY
Vcc
1
7805
U1
3
2
C2
10 mF
Figure C-3. Demonstration Board Power Supply
Capacitor C1 provides surge current protection for the voltage regulator, and allows the external power supply to be located some distance away.
Be careful to limit the current draw in any prototype circuits you build on the prototyping area of the Demonstration Board to avoid operating the linear regulator outside its recommended limits. The LEDs and buzzer together can draw up to 70 mA, which still leaves
some current capacity for your own circuits (see Table C-1) if you plan to use them with
the LEDs and the buzzer.
If you need additional current from the linear regulator beyond that specified in Table C-1,
consider adding a heat sink to the linear regulator (remember to use silicone grease between the tab and the heat sink), or use a lower voltage power supply.
64 MiniCom (OP6800)
C.3 Using the Demonstration Board
The Demonstration Board is actually both a demonstration board and a prototyping board.
As a demonstration board, it can be used to demonstrate the functionality of the OP6800 right out of the box without any modifications to either board. There are no jumpers or dip switches to configure or misconfigure on the Demonstration Board so that the initial setup is very straightforward.
The Demonstration Board comes with the basic components necessary to demonstrate the operation of the OP6800. Four LEDs (DS1–DS4) are connected to OUT07–OUT10, and four switches (S1–S4) are connected to IN00–IN03 to demonstrate the interface to the
OP6800.
The Demonstration Board has a buzzer that is normally off. The buzzer can be enabled to be on by setting the jumper across pins 1–2 on header JP1 on the Demonstration Board as
shown in Figure C-4. When enabled on, the buzzer will sound whenever the OUT0 digital
output on the OP6800 is on.
Factory
Default
JP1
3
2
1
0 V T IN12 IN13 IN14 IN15 IN16 IN17 VBA 1 IN09 IN00 IN01 IN02 IN03 IN04 IN05
J4
J2
0 V
OUT10
OUT08
OUT06
OUT04
OUT02
OUT00
RxB
RxC
485
VBAT
IN16
IN14
IN12
IN10
IN08
IN06
IN04
IN02
IN00
+RAW
J1
IN17
IN15
IN13
IN11
LS1
IN09
IN07
IN05
Buzzer
IN03
IN01
GND
C1
+K
OUT09
OUT07
OUT05
OUT03
OUT01
GND
TxB
TxC
+485
C2
1
HOT!
3
U1
C3
J3
0 V
+5 V
GND
+5 V GND
+5 V GND
+RAW
+5 V
GND
J5
GND +RAW TxB RxB TxC RxC + RS485
0 V
+5 V
GND
GND
+5 V
+K
J11
+RAW +K
J6
+K OUT10 OUT09 OUT08 OUT07 OUT06 OUT05 OUT04 OUT03 OUT02 OUT01 OUT00
J10
J8
Figure C-4. Demonstration Board Header JP1
(Buzzer On/Off)
User’s Manual 65
The Demonstration Board provides the user with OP6800 connection points brought out conveniently to labeled points at headers J4, J5, J6, and J8 on the Demonstration Board.
Small to medium circuits can be prototyped using point-to-point wiring with 20 to 30 AWG wire on the prototyping area. The holes are spaced at 0.1" (2.5 mm). The pinouts for headers
J4, J5, J6, and J8 are shown in Figure C-5.
S4 S3 S2 S1
DS1 DS2 DS3
DS4
RP1
IN00
IN01
IN02
IN03
IN04
IN05
IN06
IN07
IN08
IN09
IN10
IN11
IN12
IN13
IN14
IN15
IN16
IN17
VBAT
0 V
7
8
5
6
3
4
1
2
J4
7
8
5
6
3
4
1
2
9
10
11
J8
+5 V
0 V
GND
12
GND
+5 V
JP1
GND
+5 V
J6
+K
12
5
4
7
6
11
10
9
8
3
2
1
+RAW
J5
2
1
4
3
6
5
8
7
J1
OUT00
OUT01
OUT02
OUT03
OUT04
OUT05
OUT06
OUT07
OUT08
OUT09
OUT10
+K
RS-485
RS-485+
RxC
TxC
RxB
TxB
+RAW
GND
Figure C-5. OP6800 Demonstration Board Pinout
66 MiniCom (OP6800)
The Demonstration Board can then be rotated and mounted behind the OP6800 as shown
in Figure C-6 to allow the Demonstration Board and the OP6800 to be used together.
IN12 IN13 IN14 IN15 IN16 IN17 VBA IN00 IN01 IN02 IN03 IN04 IN05
J4
IN00
+RAW
OUT10
OUT08
OUT06
OUT04
OUT02
OUT00
RxB
RxC
485
VBAT
IN16
IN14
IN12
IN10
IN08
IN06
IN04
IN02
IN17
IN15
IN13
IN11
IN09
IN07
IN05
LS1
Buzzer
IN03
IN01
C1
0 V
+5 V
GND
+5 V GND
J1
GND
+K
OUT09
OUT07
OUT05
OUT03
OUT01
GND
TxB
C2
1
HOT!
3
U1
C3
TxC
+485
+5 V GND
GND
+RAW
+5 V
J3
J5
GND +RAW TxB RxB TxC RxC + RS485
J2
0 V 0 V
+5 V
GND
+RAW +K
GND
+5 V
+K
J11
J6
+K OUT10 OUT09 OUT08 OUT07 OUT06 OUT05 OUT04 OUT03 OUT02 OUT01 OUT00
J7
J10
J8
Figure C-6. Mounting Demonstration Board on OP6800
NOTE: Remove the standoffs behind the OP6800 before attempting to mount the Demonstration Board.
The OP6800 may also be panel-mounted with the Demonstration Board attached. Follow
the instructions in Chapter 6, “Installation and Mounting Guidelines.” Use 4-40 screws
that are l 3/16" (plus the thickness of the panel) in length. Note that the Demonstration
Board and the OP6800 end up on opposite sides of the panel as shown in Figure C-7.
OP6800 Bezel/Gasket
Demonstration Board
Panel
R1
J1
R6
JP1
KP1
C1
U1
R2
R3
U2
C8 C9R4
C2 C3 C4 C5
RP1 RP2 RP3
RP6 RP7 RP8
R11
R16
Q7
Q5
R13 D12
D13
R17
Q8
R26 C44
R39
R27
R41
R38
C3
D2 R7
C27
Flas
U5
D11
h
ROM
JP3
R22
JP4
R8
RP9
R10
C30 C31
LNK
DS1
D7
R19
Q10
D8
R20
Q11
D9
R21
Q12
D10
R15
Q6
U3
R25
C35
R24
C33
R28
C25
R23
C34
C36
U4
R29
C45
U6
C37
C4 C17
J2
C42
R31
C43
U7
R11
C41
R13
J3
C39
C17
R32
RN1
RP4 D6
R14
C40
D14
Figure C-7. OP6800 with Demonstration Board Mounted in Panel (rear view)
User’s Manual 67
68 MiniCom (OP6800)
A
PPENDIX
D. OP6800 F
UNCTION
API
S
Appendix D provides the function calls related to the operation of the OP6800 board, I/O, serial channels, display, and keypad.
User’s Manual 69
D.1 Board Initialization (OP68xx.LIB) void brdInit (void);
Call this function at the beginning of your program. This function initializes the system I/O ports. This function also turns off LED DS1 to indicate that the initialization was successful.
The ports are initialized according to Table A-4.
SEE ALSO digIn, digOut, serMode, ledOut
70 MiniCom (OP6800)
D.2 Digital I/O (OP68xx.LIB) int digIn(int channel);
Reads the state of an input channel.
A runtime error will occur if
brdInit
was not executed before executing
digIn
, or when
channel
is out of range.
PARAMETER channel
is the input channel number (0–12), where IN00–IN12 are the normal user digital inputs.
RETURN VALUE
The state of the input (0 or 1).
SEE ALSO brdInit, digOut, ledOut
void digOut(int channel, int value);
Sets the state of a digital output (
OUT00–OUT10)
.
Remember to call the
brdInit
function before executing this function.
A runtime error will occur if
brdInit
was not executed before executing
digOut
, or when
channel
or
value
is out of range.
NOTE: The LEDs and digital outputs OUT00–OUT06 are driven by the same driver chip. Do not use both
ledOut
and
digOut
to control the same LED or digital output in a given application.
PARAMETERS channel
is the output channel number (0–10).
value
is the output value (0 or 1).
SEE ALSO brdInit, digIn, ledOut
User’s Manual 71
D.3 Serial Communication (OP68xx.LIB)
Library files included with Dynamic C provide a full range of serial communications support. The
RS232.LIB
library provides a set of circular-buffer-based serial functions. The
PACKET.LIB
library provides packet-based serial functions where packets can be delimited by the 9th bit, by transmission gaps, or with user-defined special characters. Both libraries provide blocking functions, which do not return until they are finished transmitting or receiving, and nonblocking functions, which must be called repeatedly until they are finished. For more information, see the Dynamic C User’s Manual and Technical
Note TN213, Rabbit 2000 Serial Port Software.
Use the following function calls with the OP6800.
int serMode(int mode);
User interface to set up OP6800 serial communication lines. Call this function after
serXOpen()
.
Whether you are opening one or multiple serial ports, this function must be executed after executing the last
serXOpen
function AND before you start using any of the serial ports. This function is non-reentrant.
If Mode 1 is selected, CTS/RTS flow control is exercised using the
serCflowcontrolOn
and
serCflowcontrolOff
functions from the
RS232.LIB
library.
.
PARAMETER mode
is the defined serial port configuration
Mode
0
1
B
RS-232, 3-wire
RS-232, 5-wire
Serial Port
C
RS-232, 3-wire
CTS/RTS
RS-485
RS-485
D
RETURN VALUE
0 if valid mode, 1 if not.
SEE ALSO ser485Tx, ser485Rx
NOTE: Be sure to call
serMode
before either of the next two functions.
void ser485Tx(void);
Sets pin 3 (DE) high to enable the RS-485 transmitter. Remember to call
serMode
before calling
ser485Tx
.
SEE ALSO serMode, ser485Rx
72 MiniCom (OP6800)
void ser485Rx(void);
Resets pin 3 (DE) low to disable the RS-485 transmitter. Remember to call
serMode
before calling
ser485Rx
.
SEE ALSO serMode, ser485Tx, serCflowcontrolOn, serCflowcontrolOff
User’s Manual 73
D.4 LEDs (OP68xx.LIB)
When power is applied to the OP6800 for the first time, the red LED (DS1) will come on, indicating that power is being applied to the OP6800. The red LED is turned off when the
brdInit
function executes.
The LEDs are in series with the open-ouput collector that drives digital outputs OUT00–
OUT06, and so the same function call that turns on one of these digital outputs will also turn on the corresponding LED.
void ledOut(int led, int value);
LED on/off control.
A runtime error will occur if
brdInit
was not executed before executing
ledOut
, or when
led
or
value
is out of range.
NOTE: The LEDs and digital outputs OUT00–OUT06 are driven by the same driver chip. Do not use both
ledOut
and
digOut
to control the same LED or digital output in a given application.
PARAMETERS led
is the LED to control.
0 = LED DS1
1 = LED DS2
2 = LED DS3
3 = LED DS4
4 = LED DS5
5 = LED DS6
6 = LED DS7
value
is the value used to control whether the LED is on or off (0 or 1).
0 = off
1 = on
RETURN VALUE
None.
SEE ALSO brdInit, digOut
74 MiniCom (OP6800)
D.5 LCD Display
The functions used to control the LCD display are contained in the
GRAPHIC.LIB
library located in the Dynamic C
DISPLAYS\GRAPHIC
library directory. When x and y coordinates on the display screen are specified, x can range from 0 to 121, and y can range from
0 to 31. These numbers represent pixels from the top left corner of the display.
void glInit(void);
Initializes the display devices, clears the screen.
RETURN VALUE
None.
SEE ALSO glDispOnOFF, glBacklight, glSetContrast, glPlotDot, glBlock, glPlotDot, glPlotPolygon, glPlotCircle, glHScroll, glVScroll, glXFontInit, glPrintf, glPutChar, glSetBrushType, glBuffLock, glBuffUnlock, glPlotLine
void glBackLight(int onOff);
Turns the display backlight on or off.
PARAMETER onOff
turns the backlight on or off
1—turn the backlight on
0—turn the backlight off
RETURN VALUE
None.
SEE ALSO glInit, glDispOnoff, glSetContrast
void glDispOnOff(int onOff);
Sets the LCD screen on or off. Data will not be cleared from the screen.
PARAMETER onOff
turns the LCD screen on or off
1—turn the LCD screen on
0—turn the LCD screen off
RETURN VALUE
None.
SEE ALSO glInit, glSetContrast, glBackLight
User’s Manual 75
void glSetContrast(unsigned level);
Sets display contrast (the circuitry is not installed on the LCD/keypad module used with the OP6800).
void glFillScreen(char pattern);
Fills the LCD display screen with a pattern.
PARAMETER
The screen will be set to all black if
pattern
is 0xFF, all white if
pattern
is 0x00, and vertical stripes for any other pattern.
RETURN VALUE
None.
SEE ALSO glBlock, glBlankScreen, glPlotPolygon, glPlotCircle
void glBlankScreen(void);
Blanks the LCD display screen (sets LCD display screen to white).
RETURN VALUE
None.
SEE ALSO glFillScreen, glBlock, glPlotPolygon, glPlotCircle
void glBlock(int x, int y, int bmWidth, int bmHeight);
Draws a rectangular block in the page buffer and on the LCD if the buffer is unlocked. Any portion of the block that is outside the LCD display area will be clipped.
PARAMETERS x
is the x coordinate of the top left corner of the block.
y
is the y coordinate of the top left corner of the block.
bmWidth
is the width of the block.
bmWidth
is the height of the block.
RETURN VALUE
None.
SEE ALSO glFillScreen, glBlankScreen, glPlotPolygon, glPlotCircle
76 MiniCom (OP6800)
void glPlotVPolygon(int n, int *pFirstCoord);
Plots the outline of a polygon in the LCD page buffer, and on the LCD if the buffer is unlocked. Any portion of the polygon that is outside the LCD display area will be clipped. If fewer than 3 vertices are specified, the function will return without doing anything.
PARAMETERS n
is the number of vertices.
*pFirstCoord
is a pointer to array of vertex coordinates:
x1,y1
,
x2,y2
,
x3,y3
,...
RETURN VALUE
None.
SEE ALSO glPlotPolygon, glFillPolygon, glFillVPolygon
void glPlotPolygon(int n, int y1, int x2, int y2,
...);
Plots the outline of a polygon in the LCD page buffer and on the LCD if the buffer is unlocked. Any portion of the polygon that is outside the LCD display area will be clipped. If fewer than 3 vertices are specified, the function will return without doing anything.
PARAMETERS n
is the number of vertices.
y1
is the
y
coordinate of the first vertex.
x1
is the
x
coordinate of the first vertex.
y2
is the
y
coordinate of the second vertex.
x2
is the
x
coordinate of the second vertex.
...
are the coordinates of additional vertices.
RETURN VALUE
None.
SEE ALSO glPlotVPolygon, glFillPolygon, glFillVPolygon
User’s Manual 77
void glFillVPolygon(int n, int *pFirstCoord);
Fills a polygon in the LCD page buffer and on the LCD screen if the buffer is unlocked. Any portion of the polygon that is outside the LCD display area will be clipped. If fewer than 3 vertices are specified, the function will return without doing anything.
PARAMETERS n
is the number of vertices.
*pFirstCoord
is a pointer to array of vertex coordinates:
x1,y1
,
x2,y2
,
x3,y3
,
...
RETURN VALUE
None.
SEE ALSO glFillPolygon, glPlotPolygon, glPlotVPolygon
void glFillPolygon(int n, int x1, int y1, int x2, int y2, ...);
Fills a polygon in the LCD page buffer and on the LCD if the buffer is unlocked. Any portion of the polygon that is outside the LCD display area will be clipped. If fewer than 3 vertices are specified, the function will return without doing anything.
PARAMETERS n
is the number of vertices.
x1
is the
x
coordinate of the first vertex.
y1
is the
y
coordinate of the first vertex.
x2
is the
x
coordinate of the second vertex.
y2
is the
y
coordinate of the second vertex.
...
are the coordinates of additional vertices.
RETURN VALUE
None.
SEE ALSO glFillVPolygon, glPlotPolygon, glPlotVPolygon
78 MiniCom (OP6800)
void glPlotCircle(int xc, int yc, int rad);
Draws the outline of a circle in the LCD page buffer and on the LCD if the buffer is unlocked. Any portion of the circle that is outside the LCD display area will be clipped.
PARAMETERS xc
is the
x
coordinate of the center of the circle.
yc
is the
y
coordinate of the center of the circle.
rad
is the radius of the center of the circle (in pixels).
RETURN VALUE
None.
SEE ALSO glFillCircle, glPlotPolygon, glFillPolygon
void glFillCircle(int xc, int yc, int rad);
Draws a filled circle in the LCD page buffer and on the LCD if the buffer is unlocked. Any portion of the circle that is outside the LCD display area will be clipped.
PARAMETERS xc
is the
x
coordinate of the center of the circle.
yc
is the
y
coordinate of the center of the circle.
rad
is the radius of the center of the circle (in pixels).
RETURN VALUE
None.
SEE ALSO glPlotCircle, glPlotPolygon, glFillPolygon
User’s Manual 79
void glXFontInit(fontInfo *pInfo, char pixWidth, char pixHeight, unsigned startChar, unsigned endChar, unsigned long xmemBuffer);
Initializes the font descriptor structure, where the font is stored in
xmem
.
PARAMETERS
*pInfo
is a pointer to the font descriptor to be initialized.
pixWidth
is the width (in pixels) of each font item.
pixHeight
is the height (in pixels) of each font item.
startChar
is the value of the first printable character in the font character set.
endChar
is the value of the last printable character in the font character set.
xmemBuffer
is the
xmem
pointer to a linear array of font bitmaps.
RETURN VALUE
None.
SEE ALSO glPrinf
unsigned long glFontCharAddr(fontInfo *pInfo, char letter);
Returns the
xmem
address of the character from the specified font set.
PARAMETERS
*pInfo
is the
xmem
address of the bitmap font set.
letter
is an ASCII character.
RETURN VALUE xmem
address of bitmap character font, column major, and byte-aligned.
SEE ALSO glPutFont, glPrintf
80 MiniCom (OP6800)
void glPutFont(int x, int y, fontInfo *pInfo, char code);
Puts an entry from the font table to the page buffer and on the LCD if the buffer is unlocked. Each font character's bitmap is column major and byte-aligned. Any portion of the bitmap character that is outside the LCD display area will be clipped.
PARAMETERS x
is the
x
coordinate (column) of the top left corner of the text.
y
is the
y
coordinate (row) of the top left corner of the text.
*pInfo
is a pointer to the font descriptor.
code
is the ASCII character to display.
RETURN VALUE
None.
SEE ALSO glFontCharAddr, glPrintf
void glSetPfStep(int stepX, int stepY);
Sets the
glPrintf()
printing step direction. The x and y step directions are independent signed values. The actual step increments depend on the height and width of the font being displayed, which are multiplied by the step values.
PARAMETERS stepX
is the
glPrintf
x
step value
stepY
is the
glPrintf
y
step value
RETURN VALUE
None.
SEE ALSO
Use
glGetPfStep()
to examine the current x and y printing step direction.
int glGetPfStep(void);
Gets the current
glPrintf()
printing step direction. Each step direction is independent of the other, and is treated as an 8-bit signed value. The actual step increments depends on the height and width of the font being displayed, which are multiplied by the step values.
RETURN VALUE
The
x
step is returned in the MSB, and the
y
step is returned in the LSB of the integer result.
SEE ALSO
Use
glGetPfStep()
to control the
x
and
y
printing step direction.
User’s Manual 81
void glPutChar(char ch, char *ptr, int *cnt, glPutCharInst *pInst)
Provides an interface between the STDIO string-handling functions and the graphic library. The STDIO string-formatting function will call this function, one character at a time, until the entire formatted string has been parsed. Any portion of the bitmap character that is outside the LCD display area will be clipped.
PARAMETERS ch
is the character to be displayed on the LCD.
*ptr
is not used, but is a place holder for STDIO string functions.
*cnt
is not used, is a place holder for STDIO string functions.
*pInst
is a font descriptor pointer.
RETURN VALUE
None.
SEE ALSO glPrintf, glPutFont, doprnt
void glPrintf(int x, int y, fontInfo *pInfo, char *fmt, ...);
Prints a formatted string (much like
printf
) on the LCD screen. Only the character codes that exist in the font set are printed, all others are skipped. For example, '\b', '\t', '\n' and '\r' (ASCII backspace, tab, new line, and carriage return, respectively) will be printed if they exist in the font set, but will not have any effect as control characters. Any portion of the bitmap character that is outside the LCD display area will be clipped.
PARAMETERS x
is the
x
coordinate (column) of the top left corner of the text.
y
is the
y
coordinate (row) of the top left corner of the text.
*pInfo
is a font descriptor pointer.
*fmt
is a formatted string.
...
are formatted string conversion parameter(s).
EXAMPLE glprintf(0,0, &fi12x16, "Test %d\n", count);
RETURN VALUE
None.
SEE ALSO glXFontInit
82 MiniCom (OP6800)
void glBuffLock(void);
Increments LCD screen locking counter. Graphic calls are recorded in the LCD memory buffer and are not transferred to the LCD if the counter is non-zero.
NOTE: glBuffLock()
and
glBuffUnlock()
can be nested up to a level of 255, but be sure to balance the calls. It is not a requirement to use these procedures, but a set of
glBuffLock()
and
glBuffUnlock()
bracketing a set of related graphic calls speeds up the rendering significantly.
RETURN VALUE
None.
SEE ALSO glBuffUnlock, glSwap
void glBuffUnlock(void);
Decrements the LCD screen locking counter. The contents of the LCD buffer are transferred to the LCD if the counter goes to zero.
RETURN VALUE
None.
SEE ALSO glBuffLock, glSwap
void glSwap(void);
Checks the LCD screen locking counter. The contents of the LCD buffer are transferred to the LCD if the counter is zero.
RETURN VALUE
None.
SEE ALSO glBuffUnlock, glBuffLock, _glSwapData
(located in the library specifically for the LCD that you are using
)
User’s Manual 83
void glSetBrushType(int type);
Sets the drawing method (or color) of pixels drawn by subsequent graphic calls.
PARAMETER type
value can be one of the following macros.
PIXBLACK
draws black pixels (turns pixel on).
PIXWHITE
draws white pixels (turns pixel off).
PIXXOR
draws old pixel XOR'ed with the new pixel.
RETURN VALUE
None.
SEE ALSO glGetBrushType
int glGetBrushType(void);
Gets the current method (or color) of pixels drawn by subsequent graphic calls.
RETURN VALUE
The current brush type.
SEE ALSO glSetBrushType
void glPlotDot(int x, int y);
Draws a single pixel in the LCD buffer, and on the LCD if the buffer is unlocked. If the coordinates are outside the LCD display area, the dot will not be plotted.
PARAMETERS x
is the
x
coordinate of the dot.
y
is the
y
coordinate of the dot.
RETURN VALUE
None.
SEE ALSO glPlotline, glPlotPolygon, glPlotCircle
84 MiniCom (OP6800)
void glPlotLine(int x0, int y0, int x1, int y1);
Draws a line in the LCD buffer, and on the LCD if the buffer is unlocked. Any portion of the line that is beyond the LCD display area will be clipped.
PARAMETERS x0
is the
x
coordinate of one endpoint of the line.
y0
is the
y
coordinate of one endpoint of the line.
x1
is the
x
coordinate of the other endpoint of the line.
y1
is the
y
coordinate of the other endpoint of the line.
RETURN VALUE
None.
SEE ALSO glPlotDot, glPlotPolygon, glPlotCircle
void glLeft1(int left, int top, int cols, int rows);
Scrolls byte-aligned window left one pixel, right column is filled by current pixel type (color).
PARAMETERS left
is the top left corner of bitmap, must be evenly divisible by 8, otherwise truncates.
top
is the top left corner of the bitmap.
cols
is the number of columns in the window, must be evenly divisible by 8, otherwise truncates.
rows
is the number of rows in the window.
RETURN VALUE
None.
SEE ALSO glHScroll, glRight1
void glRight1(int left, int top, int cols, int rows);
Scrolls byte-aligned window right one pixel, left column is filled by current pixel type (color).
PARAMETERS left
is the top left corner of bitmap, must be evenly divisible by 8, otherwise truncates.
top
is the top left corner of the bitmap.
cols
is the number of columns in the window, must be evenly divisible by 8, otherwise truncates.
rows
is the number of rows in the window.
RETURN VALUE
None.
SEE ALSO glHScroll, glLeft1
User’s Manual 85
void glUp1(int left, int top, int cols, int rows);
Scrolls byte-aligned window up one pixel, bottom column is filled by current pixel type (color).
PARAMETERS left
is the top left corner of bitmap, must be evenly divisible by 8, otherwise truncates.
top
is the top left corner of the bitmap.
cols
is the number of columns in the window, must be evenly divisible by 8, otherwise truncates.
rows
is the number of rows in the window.
RETURN VALUE
None.
SEE ALSO glVScroll, glDown1
void glDown1(int left, int top, int cols, int rows);
Scrolls byte-aligned window down one pixel, top column is filled by current pixel type (color).
PARAMETERS left
is the top left corner of bitmap, must be evenly divisible by 8, otherwise truncates.
top
is the top left corner of the bitmap.
cols
is the number of columns in the window, must be evenly divisible by 8, otherwise truncates.
rows
is the number of rows in the window.
RETURN VALUE
None.
SEE ALSO glVScroll, glUp1
86 MiniCom (OP6800)
void glHScroll(int left, int top, int cols, int rows, int nPix);
Scrolls right or left, within the defined window by x number of pixels. The opposite edge of the scrolled window will be filled in with white pixels. The window must be byte-aligned.
Parameters will be verified for the following:
1. The
left
and
cols
parameters will be verified that they are evenly divisible by 8. If not, they will be truncated to a value that is a multiple of 8.
2. Parameters will be checked to verify that the scrolling area is valid. The minimum scrolling area is a width of 8 pixels and a height of one row.
PARAMETERS left
is the top left corner of bitmap, must be evenly divisible by 8.
top
is the top left corner of the bitmap.
cols
is the number of columns in the window, must be evenly divisible by 8.
rows
is the number of rows in the window.
nPix
is the number of pixels to scroll within the defined window (a negative value will produce a scroll to the left).
RETURN VALUE
None.
SEE ALSO glVScroll
User’s Manual 87
void glVScroll(int left, int top, int cols, int rows, int nPix);
Scrolls up or down, within the defined window by x number of pixels. The opposite edge of the scrolled window will be filled in with white pixels. The window must be byte-aligned.
Parameters will be verified for the following:
1. The
left
and
cols
parameters will be verified that they are evenly divisible by 8. If not, they will be truncated to a value that is a multiple of 8.
2. Parameters will be checked to verify that the scrolling area is valid. The minimum scrolling area is a width of 8 pixels and a height of one row.
PARAMETERS left
is the top left corner of bitmap, must be evenly divisible by 8.
top
is the top left corner of the bitmap.
cols
is the number of columns in the window, must be evenly divisible by 8.
rows
is the number of rows in the window.
nPix
is the number of pixels to scroll within the defined window (a negative value will produce a scroll up).
RETURN VALUE
None.
SEE ALSO glHScroll
void glXPutBitmap(int left, int top, int width, int height, unsigned long bitmap);
Draws bitmap in the specified space. The data for the bitmap are stored in
xmem
. This function calls
glXPutFastmap
automatically if the bitmap is byte-aligned (the left edge and the width are each evenly divisible by 8, otherwise truncated).
Any portion of a bitmap image or character that is outside the LCD display area will be clipped.
PARAMETERS left
is the top left corner of the bitmap.
top
is the top left corner of the bitmap.
width
is the width of the bitmap.
height
is the height of the bitmap.
bitmap
is the address of the bitmap in
xmem
.
RETURN VALUE
None.
SEE ALSO glXPutFastmap, glPrintf
88 MiniCom (OP6800)
void glXPutFastmap(int left, int top, int width, int height, unsigned long bitmap);
Draws bitmap in the specified space. The data for the bitmap are stored in
xmem
. This function is like
glXPutBitmap
, except that it is faster. The restriction is that the bitmap must be byte-aligned.
Any portion of a bitmap image or character that is outside the LCD display area will be clipped.
PARAMETERS left
is the top left corner of the bitmap, must be evenly divisible by 8, otherwise truncates.
top
is the top left corner of the bitmap.
width
is the width of the bitmap, must be evenly divisible by 8, otherwise truncates.
height
is the height of the bitmap.
bitmap
is the address of the bitmap in
xmem
.
RETURN VALUE
None.
SEE ALSO glXPutBitmap, glPrintf
int TextWindowFrame(windowFrame *window, fontInfo *pFont, int x, int y, int winWidth, int winHeight)
Defines a text-only display window. This function provides a way to display characters within the text window using only character row and column coordinates. The text window feature provides end-of-line wrapping and clipping after the character in the last column and row is displayed.
NOTE: Execute the
TextWindowFrame
function before other
Text...
functions.
PARAMETERS
*window
is a window frame descriptor pointer.
*pFont
is a font descriptor pointer.
x
is the x coordinate of the top left corner of the text window frame.
y
is the y coordinate of the top left corner of the text window frame.
winWidth
is the width of the text window frame.
winHeight
is the height of the text window frame.
RETURN VALUE
0—window frame was successfully created.
-1—x coordinate + width has exceeded the display boundary.
-2—y coordinate + height has exceeded the display boundary.
User’s Manual 89
void TextGotoXY(windowFrame *window, int col, int row);
Sets the cursor location to where the next character will be displayed. The display location is based on the height and width of the character to be displayed.
NOTE: Execute the
TextWindowFrame
function before using this function.
PARAMETERS
*window
is a pointer to a font descriptor.
col
is a character column location.
row
is a character row location.
RETURN VALUE
None.
SEE ALSO
TextPutChar, TextPrintf, TextWindowFrame
void TextCursorLocation(windowFrame *window, int *col, int *row);
Gets the current cursor location that was set by a Graphic
Text...
function.
NOTE: Execute the
TextWindowFrame
function before using this function.
PARAMETERS
*window
is a pointer to a font descriptor.
*col
is a pointer to cursor column variable.
*row
is a pointer to cursor row variable.
RETURN VALUE
Lower word = Cursor Row location
Upper word = Cursor Column location
SEE ALSO
TextGotoXY, TextPrintf, TextWindowFrame, TextCursorLocation
90 MiniCom (OP6800)
void TextPutChar(struct windowFrame *window, char ch);
Displays a character on the display where the cursor is currently pointing. If any portion of a bitmap character is outside the LCD display area, the character will not be displayed. The cursor increments to the next character position.
NOTE: Execute the
TextWindowFrame
function before using this function.
PARAMETERS
*window
is a pointer to a font descriptor.
ch
is a character to be displayed on the LCD.
RETURN VALUE
None.
SEE ALSO
TextGotoXY, TextPrintf, TextWindowFrame, TextCursorLocation
void TextPrintf(struct windowFrame *window, char *fmt, ...);
Prints a formatted string (much like
printf
) on the LCD screen. Only printable characters in the font set are printed, also escape sequences, '\r' and '\n' are recognized. All other escape sequences will be skipped over; for example, '\b' and \'t' will print if they exist in the font set, but will not have any effect as control characters.
The text window feature provides end-of-line wrapping and clipping after the character in the last column and row is displayed. The cursor then remains at the end of the string.
NOTE: Execute the
TextWindowFrame
function before using this function.
PARAMETERS
*window
is a pointer to a font descriptor.
*fmt
is a formatted string.
...
are formatted string conversion parameter(s).
EXAMPLE
TextPrintf(&TextWindow, "Test %d\n", count);
RETURN VALUE
None.
SEE ALSO
TextGotoXY, TextPutChar, TextWindowFrame, TextCursorLocation
User’s Manual 91
D.6 Keypad
The functions used to control the keypad are contained in the
KEYPAD7.LIB
library located in the Dynamic C
KEYPADS
library directory.
void keyInit(void);
Initializes keypad process
RETURN VALUE
None.
SEE ALSO brdInit
void keyConfig(char cRaw, char cPress, char cRelease, char cCntHold, char cSpdLo, char cCntLo, char cSpdHi);
Assigns each key with key press and release codes, and hold and repeat ticks for auto repeat and debouncing.
PARAMETERS cRaw
is a raw key code index.
1x7 keypad matrix with raw key code index assignments (in brackets):
[0] [1] [2] [3]
[4] [5] [6]
User Keypad Interface cPress
is a key press code
An 8-bit value is returned when a key is pressed.
0 = Unused.
See
keypadDef()
for default press codes.
cRelease
is a key release code.
An 8-bit value is returned when a key is pressed.
0 = Unused.
cCntHold
is a hold tick, which is approximately one debounce period or 5 µs.
How long to hold before repeating.
0 = No Repeat.
cSpdLo
is a low-speed repeat tick, which is approximately one debounce period or 5 µs.
How many times to repeat.
0 = None.
92 MiniCom (OP6800)
cCntLo
is a low-speed hold tick, which is approximately one debounce period or 5 µs.
How long to hold before going to high-speed repeat.
0 = Slow Only.
cSpdHi
is a high-speed repeat tick, which is approximately one debounce period or 5 µs.
How many times to repeat after low speed repeat.
0 = None.
RETURN VALUE
None.
SEE ALSO keyProcess, keyGet, keypadDef
void keyProcess(void);
Scans and processes keypad data for key assignment, debouncing, press and release, and repeat.
NOTE: This function is also able to process an 8 × 8 matrix keypad.
RETURN VALUE
None
SEE ALSO keyConfig, keyGet, keypadDef
char keyGet(void);
Get next keypress
RETURN VALUE
The next keypress, or 0 if none
SEE ALSO keyConfig, keyProcess, keypadDef
int keyUnget(char cKey);
Push keypress on top of input queue
PARAMETER cKey
RETURN VALUE
None.
SEE ALSO keyGet
User’s Manual 93
void keypadDef();
Configures the physical layout of the keypad with the desired ASCII return key codes.
Keypad physical mapping 1 × 7
0
['L']
4 1
['U']
5 2
['D']
6 3
['R']
['–'] ['+'] ['E'] where
'D' represents Down Scroll
'U' represents Up Scroll
'R' represents Right Scroll
'L' represents Left Scroll
'–' represents Page Down
'+' represents Page Up
'E' represents the ENTER key
Example: Do the followingfor the above physical vs. ASCII return key codes.
keyConfig ( 3,'R',0, 0, 0, 0, 0 ); keyConfig ( 6,'E',0, 0, 0, 0, 0 ); keyConfig ( 2,'D',0, 0, 0, 0, 0 ); keyConfig ( 4,'-',0, 0, 0, 0, 0 ); keyConfig ( 1,'U',0, 0, 0, 0, 0 ); keyConfig ( 5,'+',0, 0, 0, 0, 0 ); keyConfig ( 0,'L',0, 0, 0, 0, 0 );
Characters are returned upon keypress with no repeat.
RETURN VALUE
None.
SEE ALSO keyConfig, keyGet, keyProcess
void keyScan(char *pcKeys);
Writes "1" to each row and reads the value. The position of a keypress is indicated by a zero value in a bit position.
PARAMETER
*pcKeys
is the address of the value read.
RETURN VALUE
None.
SEE ALSO keyConfig, keyGet, keypadDef, keyProcess
94 MiniCom (OP6800)
A
PPENDIX
E. P
ROGRAMMING
C
ABLE
Appendix E provides additional information for the Rabbit
2000
®
microprocessor when using the
DIAG
and
PROG
connectors on the programming cable. The
PROG
connector is used only when the programming cable is attached to the programming connector (header J1 on the OP6800 module) while a new application is being developed. Otherwise, the
DIAG
connector on the programming cable allows the programming cable to be used as an RS-232 to CMOS level converter for serial communication, which is appropriate for monitoring or debugging a
OP6800 system while it is running.
User’s Manual 95
The programming port, which is shown in Figure E-1, can serve as a convenient commu-
nications port for field setup or other occasional communication need (for example, as a diagnostic port). If the port is simply to perform a setup function, that is, write setup information to flash memory, then the controller can be reset through the programming port and a cold boot performed to start execution of a special program dedicated to this functionality.
1
3
5
7
9
Programming Port
Pin Numbers
2
4
6
8
10
PROGRAMMING PORT PIN ASSIGNMENTS
(Rabbit PQFP pins are shown in parenthesis)
~50 kW
1. RXA (51)
2. GND
3. CKLKA (94)
4. +5 V/+3 V
5. /RESET
6. TXA (54)
7. n.c.
8. STATUS (output) (38)
9. SMODE0 (36)
10. SMODE1 (35)
~50 kW
~10 kW
~50 kW
~50 kW
+
+
+
GND
GND
Figure E-1. Programming Port Pin Assignments
When the
PROG
connector is used, the /RESET line can be asserted by manipulating
DTR and the STATUS line can be read as DSR on the serial port. The target can be restarted by pulsing reset and then, after a short delay, sending a special character string at
2400 bps. To simply restart the BIOS, the string 80h, 24h, 80h can be sent. When the
BIOS is started, it can tell whether the programming cable is connected because the
SMODE1 and SMODE0 pins are sensed as being high.
Alternatively, the
DIAG
connector can be used to connect the programming port. The
/RESET line and the SMODE1 and SMODE0 pins are not connected to this connector.
The programming port is then enabled as a diagnostic port by polling the port periodically to see if communication needs to begin or to enable the port and wait for interrupts. The pull-up resistors on RXA and CLKA prevent spurious data reception that might take place if the pins floated.
If the clocked serial mode is used, the serial port can be driven by having two toggling lines that can be driven and one line that can be sensed. This allows a conversation with a device that does not have an asynchronous serial port but that has two output signal lines and one input signal line.
The line TXA (also called PC6) is zero after reset if the cold-boot mode is not enabled. A possible way to detect the presence of a cable on the programming port is for the cable to connect TXA to one of the SMODE pins and then test for the connection by raising PC6
(by configuring it as a general output bit) and reading the SMODE pin after the cold-boot mode has been disabled. The value of the SMODE pin is read from the SPCR register.
96 MiniCom (OP6800)
N
OTICE TO
U
SERS
Z-WORLD PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE-
SUPPORT DEVICES OR SYSTEMS UNLESS A SPECIFIC WRITTEN AGREEMENT REGARDING
SUCH INTENDED USE IS ENTERED INTO BETWEEN THE CUSTOMER AND Z-WORLD PRIOR
TO USE. Life-support devices or systems are devices or systems intended for surgical implantation into the body or to sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling and user’s manual, can be reasonably expected to result in significant injury.
No complex software or hardware system is perfect. Bugs are always present in a system of any size. In order to prevent danger to life or property, it is the responsibility of the system designer to incorporate redundant protective mechanisms appropriate to the risk involved.
All Z-World products are 100 percent functionally tested. Additional testing may include visual quality control inspections or mechanical defects analyzer inspections. Specifications are based on characterization of tested sample units rather than testing over temperature and voltage of each unit. Z-World products may qualify components to operate within a range of parameters that is different from the manufacturer’s recommended range. This strategy is believed to be more economical and effective. Additional testing or burn-in of an individual unit is available by special arrangement.
User’s Manual 97
98 MiniCom (OP6800)
I
NDEX
B
battery connections ............... 58
buzzer .................................... 65
C
CE compliance ........................ 4
design guidelines ................. 5
chip select circuit .................. 60
connections
Ethernet cable ................... 35
programming cable ........... 11
contrast .................................. 10
D
Demonstration Board
mounting and installation .. 67
pinout ................................ 66 prototyping area ................ 66
wire assembly ..................... 2
demonstration program ......... 10
digital outputs ....................... 18
dimensions
Demonstration Board ........ 62
LCD/keypad template ....... 24
OP6800 ............................. 48
Dynamic C ........................ 3, 27
add-on modules ................... 3
changing programming baud rate in BIOS .................. 12
debugging features ............ 27
installation ......................... 12 starting .............................. 12
telephone-based technical support ............................ 3
E
Ethernet cables ...................... 35
Ethernet connections ............. 35 steps .................................. 35
exclusion zone ...................... 49
F
features .................................... 1
flash memory
liefetime write cycles ........ 27
flash memory bank select ..... 23
font and bitmap converter ..... 33
H
I
headers
JP1 ..................................... 20
I/O address assignments ....... 55
installation guidelines ........... 43
introduction ............................. 1
IP addresses .......................... 38
how to set .......................... 37
how to set PC IP address ... 38
J
jumper configurations ........... 52
Demonstration Board buzzer ................................... 65
tion resistors) .......... 20, 52 jumper locations ................ 52
K
keypad template .................... 24
removing and inserting label ................................. 25
L
LCD/keypad module
contrast adjustment ........... 10
keypad template ................ 24
removing and inserting keypad label .............................. 25
M
memory ................................. 23
models ..................................... 2
OP6800 ............................... 2
OP6810 ............................... 2
mounting and installation
Demonstration Board ........ 67
OP6800 ....................... 44, 45
O
OP6800
introduction ......................... 1
P
pin 1 locations ....................... 48
pinout
Demonstration Board ........ 66
Ethernet port ..................... 22
OP6800 headers ................ 16
programming port ............. 96
power distribution ................. 63
power management ............... 57
power supply ............... 2, 57, 63
backup battery circuit ....... 58 battery backup ................... 58
chip select circuit .............. 60
connections ......................... 9
power distribution ............. 63
switching voltage regulator 57
VRAM switch ................... 59
power-up
demonstration program ..... 10
Program Mode ...................... 28
User’s Manual 99
programming
flash vs. RAM ...................27
programming cable ..............2
programming port ..............21
programming cable .................2
connections ........................11
DIAG connector ................96
programming port .................21
pinout .................................96
used as diagnostic port ......96
R
Rabbit 2000
parallel ports ......................53
remote keypad operation .......17
reset .........................................9
hardware ..............................9
reset generator ...................59
RS-232 ..................................19
RS-485 ..................................19
RS-485 network ....................20
termination and bias resistors .................................20
Run Mode ..............................28
S
sample programs ...................30
BOARD_ID.C ...................30
Demonstration Board ........13
BUZZER.C ....................30
KEYPAD.C ...................30
digital I/O
DIGIN.C ........................31
DIGOUT.C ....................31
how to set IP address .........37
ICOMDEMO.C .................10
FUN.C .....................10, 31
LED.C ............................32
TEXT.C .........................32
LCD/keypad module (with
TCP/IP)
TCPSEND.C ..................40
OP6800 features ................13
PONG.C ............................13
power-up demonstration program ..............................10
serial communication
MASTER.C ...................31
PUTS.C ..........................31
SLAVE.C ......................31
TCP/IP .........................32, 37
PINGME.C ....................39
SSI.C ..............................39
TELNET.C ....................39
serial communication ............19
programming port ..............21
RS-232 description ............19
RS-485 description ............19
RS-485 network ................20
RS-485 termination and bias resistors .........................20
serial ports
Ethernet port ......................22
setup ........................................7
programming cable connections ...............................11
software ...................................3
board initialization ............70
brdInit ............................70
digital I/O
digIn ...............................71
digOut ............................71
keypad
keyConfig ......................92
keyGet ...........................93
keyInit ............................92
keypadDef .....................94
keyProcess .....................93
keyScan .........................94
keyUnget .......................93
LCD display
glBackLight ...................75
glBlankScreen ...............76
glBlock ..........................76
glBuffLock ....................83
glBuffUnlock .................83
glDispOnOff ..................75
glDown1 ........................86
glFillCircle .....................79
glFillPolygon .................78
glFillScreen ...................76
glFillVPolygon ..............78
glFontCharAddr .............80
glGetPfStep ...................81
glHScroll .......................87
glInit ..............................75
glLeft1 ...........................85
glPlotCircle ....................79
glPlotDot .......................84
glPlotLine ......................85
glPlotPolygon ................77
glPlotVPolygon .............77
glPrintf ...........................82
glPutChar .......................82
glPutFont .......................81
glRight1 .........................85
glSetBrushType .............84
glSetContrast .................76
glSetPfStep ....................81
glSwap ...........................83
glUp1 .............................86
glVScroll .......................88
glXFontInit ..............33, 80
glXPutFastmap ..............89
TextGotoXY ..................90
TextPrintf .......................91
TextPutChar ...................91
LCD/keypad module
ledOut ............................74
libraries ..............................29
RS232.LIB .....................72
TCP/IP ...........................29
sample programs ...............30
PONG.C ........................13
100 MiniCom (OP6800)
serial communication
flow control ................... 72
ser485Rx ....................... 73
specifications
Demonstration Board
OP6800
dimensions .................... 48
electrical ........................ 50
exclusion zone ............... 49
mechanical .................... 50 temperature .................... 50
subsystems ............................ 15
T
TCP/IP connections .............. 35
10Base-T Ethernet card .... 35
additional resources .......... 41
Ethernet hub ...................... 35 steps .................................. 35
Tool Kit ................................... 2
AC adapter .......................... 2
DC power supply ................ 2 programming cable ............. 2
User’s Manual ..................... 2 wire assembly ..................... 2
User’s Manual 101
102 MiniCom (OP6800)
S
CHEMATICS
090-0134 OP6800 Schematic
www.zworld.com/documentation/schemat/090-0134.pdf
090-0120 RCM2200 Schematic
www.zworld.com/documentation/schemat/090-0120.pdf
090-0119 RCM2300 Schematic
www.zworld.com/documentation/schemat/090-0119.pdf
090-0140 OP6800 Demonstration Board Schematic
www.zworld.com/documentation/schemat/090-0140.pdf
090-0128 Programming Cable Schematic
www.zworld.com/documentation/schemat/090-0128.pdf
The schematics included with the printed manual were the latest revisions available at the time the manual was last revised. The online versions of the manual contain links to the latest revised schematic on the Web site. You may also use the URL information provided above to access the latest schematics directly.
User’s Manual 103
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