Technical Specification

Technical Specification
MSP-EXP430G2 LaunchPad Experimenter
Board
User's Guide
Literature Number: SLAU318D
July 2010 – Revised April 2013
Contents
Preface ....................................................................................................................................... 4
1
MSP-EXP430G2 LaunchPad Overview ................................................................................... 5
6
7
.................................................................................................................. 5
.............................................................................................................. 6
1.3
Revisions ................................................................................................................. 7
Installation ......................................................................................................................... 7
2.1
Download the Required Software ..................................................................................... 7
2.2
Install the Software ...................................................................................................... 7
2.3
Install the Hardware ..................................................................................................... 7
Getting Started With MSP-EXP430G2 LaunchPad .................................................................... 8
3.1
Getting Started ........................................................................................................... 8
3.2
Demo Application, Internal Temperature Measurement ............................................................ 8
Develop an Application With the MSP-EXP430G2 LaunchPad ................................................... 9
4.1
Developing an Application .............................................................................................. 9
4.2
Program and Debug the Temperature Measurement Demo Application ........................................ 9
4.3
Disconnect Emulator From Target With Jumper J3 ............................................................... 10
4.4
Program Connected eZ430 Target Boards ......................................................................... 11
4.5
Connecting a Crystal Oscillator ...................................................................................... 11
4.6
Connecting a Satellite Board ......................................................................................... 12
4.7
Supported Devices ..................................................................................................... 12
4.8
MSP-EXP430G2 On-Board Emulator ............................................................................... 13
MSP-EXP430G2 Hardware .................................................................................................. 14
5.1
Device Pinout ........................................................................................................... 14
5.2
Schematics ............................................................................................................. 15
5.3
PCB Layout ............................................................................................................. 21
5.4
Bill of Materials (BOM) ................................................................................................ 24
Suggested Reading ........................................................................................................... 25
Frequently Asked Questions (FAQ) ...................................................................................... 25
2
Table of Contents
2
3
4
5
1.1
Overview
1.2
Kit Contents
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List of Figures
1
MSP-EXP430G2 LaunchPad Overview .................................................................................. 6
2
Insert Device Into Target Socket .......................................................................................... 9
3
Code Composer Studio™ v4 in Debugging Mode .................................................................... 10
4
MSP-EXP430G2 LaunchPad With Attached eZ430-RF2500 Target Board ....................................... 11
5
Device Pinout .............................................................................................................. 14
6
Schematics, MSP-EXP430G2 Emulator (1 of 2), Revision 1.4 ...................................................... 15
7
Schematics, MSP-EXP430G2 Emulator (2 of 2), Revision 1.4 ...................................................... 16
8
Schematics, MSP-EXP430G2 Target Socket, Revision 1.4 ......................................................... 17
9
Schematics, MSP-EXP430G2 Emulator (1 of 2), Revision 1.5 ...................................................... 18
10
Schematics, MSP-EXP430G2 Emulator (2 of 2), Revision 1.5 ...................................................... 19
11
Schematics, MSP-EXP430G2 Target Socket, Revision 1.5 ......................................................... 20
12
Layout, LaunchPad Top Layer ........................................................................................... 21
13
Layout, LaunchPad Bottom Layer ....................................................................................... 22
14
Layout, LaunchPad Silkscreen
..........................................................................................
23
List of Tables
1
Jumper Connection J3 Between Emulator and Target ............................................................... 10
2
eZ430 Debugging Interface .............................................................................................. 11
3
Supported Devices ........................................................................................................ 12
4
Features Supported by On-Board Emulator ........................................................................... 13
5
Bill of Materials............................................................................................................. 24
SLAU318D – July 2010 – Revised April 2013
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List of Figures
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3
Preface
SLAU318D – July 2010 – Revised April 2013
Read This First
If You Need Assistance
If you have any feedback or questions, support for the MSP430™ devices and the MSP-EXP430G2 is
provided by the Texas Instruments Product Information Center (PIC) and the TI E2E Forum
(https://community.ti.com/forums/12.aspx). Contact information for the PIC can be found on the TI web site
at http://support.ti.com. Additional device-specific information can be found on the MSP430 web site at
http://www.ti.com/msp430.
Related Documentation from Texas Instruments
The primary sources of MSP430 information are the device-specific data sheets and user's guides
available at the Texas Instruments MSP430 web site: http://www.ti.com/msp430.
MSP430 device user's guides, application reports, software examples and other MSP430 user's guides
can be found at the Tech Docs section. The CCS user's guide includes detailed information on setting up
a project and using Code Composer Studio for the MSP430 microcontroller (SLAU157).
Information specific to the MSP-EXP430G2 LaunchPad Experimenter Board, all the available IDEs,
Software Libraries, and examples can be found at the Tools & Software section:
http://www.ti.com/tool/msp-exp430g2.
FCC Warning
This equipment is intended for use in a laboratory test environment only. It generates, uses, and can
radiate radio frequency energy and has not been tested for compliance with the limits of computing
devices pursuant to subpart J of part 15 of FCC rules, which are designed to provide reasonable
protection against radio frequency interference. Operation of this equipment in other environments may
cause interference with radio communications, in which case, the user will be required to take whatever
measures may be required to correct this interference his own expense.
MSP430, Code Composer Studio are trademarks of Texas Instruments.
IAR Embedded Workbench is a trademark of IAR Systems.
All other trademarks are the property of their respective owners.
4
Preface
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User's Guide
SLAU318D – July 2010 – Revised April 2013
MSP-EXP430G2 LaunchPad Experimenter Board
1
MSP-EXP430G2 LaunchPad Overview
1.1
Overview
The MSP-EXP430G2 low-cost experimenter board called LaunchPad is a complete development solution
for the Texas Instruments MSP430G2xx Value Line series. The integrated USB-based emulator offers all
the hardware and software necessary to develop applications for all MSP430G2xx series devices. The
LaunchPad has an integrated DIP target socket that supports up to 20 pins, allowing MSP430™ Value
Line devices to be dropped into the LaunchPad board. It also offers an on-board flash emulation tool
allowing direct interface to a PC for easy programming, debugging, and evaluation. The LaunchPad
experimenter board is capable of programming the eZ430-RF2500T target boards, the eZ430-Chronos
watch module or the eZ430-F2012T/F2013T target boards. The USB interface provides a 9600-Baud
UART serial connection from the MSP430G2xx device to the host PC or a connected target board.
The MSP-EXP430G2 can be used with IAR Embedded Workbench™ Integrated Development
Environment (IDE) or Code Composer Studio™ (CCS) IDE to write, download, and debug applications.
The debugger is unobtrusive, allowing the user to run an application at full speed with hardware
breakpoints and single stepping available while consuming no extra hardware resources.
MSP-EXP430G2 LaunchPad features:
• USB debugging and programming interface featuring a driverless installation and application UART
serial communication with up to 9600 Baud
• Supports MSP430G2xx2, MSP430G2xx3, and MSP430F20xx devices in PDIP14 or PDIP20 packages
(see Section 4.7 for a complete list of supported devices)
• Two general-purpose digital I/O pins connected to green and red LEDs for visual feedback
• Two push button for user feedback and device reset
• Easily accessible device pins for debugging purposes or as socket for adding customized extension
boards
• High-quality 20-pin DIP socket for an easy plug-in or removal of the target device
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MSP-EXP430G2 LaunchPad Overview
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Figure 1. MSP-EXP430G2 LaunchPad Overview
For latest information on the MSP-EXP430G2 LaunchPad and all the necessary files, visit the MSP430
LaunchPad Wiki page http://processors.wiki.ti.com/index.php/MSP430_LaunchPad_(MSP-EXP430G2).
There you can find software examples, more details on the supported software, and where to order the
MSP-EXP430G2 LaunchPad.
1.2
Kit Contents
The MSP-EXP430G2 experimenter kit includes the following hardware:
• LaunchPad emulator socket board (MSP-EXP430G2)
• Mini USB-B cable, 0.5 m
• Two MSP430 flash devices
– MSP430G2553: Low-power 16-bit MSP430 microcontroller with an 8-channel 10-bit ADC, on-chip
comparator, touch-sense enabled I/Os, universal serial communication interface, 16kB flash
memory, and 512 bytes of RAM (preloaded with a sample program)
– MSP430G2452: Low-power 16-bit MSP430 microcontroller with an 8-channel 10-bit ADC, on-chip
comparator, touch-sense enabled I/Os, universal serial interface, 8kB flash memory, and 256 bytes
of SRAM
• Two 10-pin PCB connectors female
• 32.768-kHz clock crystal from Micro Crystal (http://www.microcrystal.com)
• Quick start guide
• Two LaunchPad stickers
6
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Installation
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1.3
Revisions
The first production revision of the LaunchPad in 2010 was 1.3. In 2012 the LaunchPad board revision
changed from 1.4 to 1.5 to align with the new release of Value Line devices. The differences in the
schematic and the kit contents are:
• Layout and Schematic:
– Voltage feedback in the emulator changed to increase startup stability (Rev 1.3 to Rev 1.4)
– Rearranged jumper J3 to support a vertical jumpers position for the UART lines
– VCC on the connector J4 can now be disconnected from the emulator VCC by J3
– Pullup resistor R34 and capacitor C24 on P1.3 removed to reduce the current consumption
– Presoldered male headers J1 and J2
2
Installation
The MSP-EXP430G2 LaunchPad installation consists of three easy steps:
1. Download the required software.
2. Install the selected IDE.
3. Connect the LaunchPad to the PC.
Then the LaunchPad is ready to develop applications or to use the pre-programmed demo application.
2.1
Download the Required Software
Different development software tools are available for the MSP-EXP430G2 LaunchPad development
board. IAR Embedded Workbench™ KickStart IDE and Code Composer Studio™ (CCS) IDE are both
available in a free limited version. IAR Embedded Workbench allows 4kB of C-code compilation. CCS is
limited to a code size of 16kB. The software is available at http://www.ti.com/msp430 or the LaunchPad
Wiki page http://processors.wiki.ti.com/index.php/MSP430_LaunchPad_(MSP-EXP430G2). There are
many other compilers and integrated development environments (IDEs) available to use with the MSPEXP430 LaunchPad including Rowley Crossworks and MSPGCC. However, example projects have been
created using IAR Embedded Workbench KickStart and Code Composer Studio (CCS). For more
information on the supported software and the latest code examples, visit the LaunchPad Wiki page.
2.2
Install the Software
Download one of the integrated development environments (IDEs). IAR KickStart and CCS offer the
required driver support to work with the MSP-EXP430 LaunchPad onboard emulation. Once installed, the
IDE should find the MSP-EXP430G2 LaunchPad as USB:HID debugging interface. Now all is set for
developing MSP430G2xx based application on the LaunchPad.
2.3
Install the Hardware
Connect the MSP-EXP430G2 LaunchPad socket board with the enclosed USB cable to a PC. The driver
installation starts automatically. If prompted for software, allow Windows to install the software
automatically. This is possible only if either IAR KickStart or Code Composer Studio is already installed
(see Section 2.2).
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Getting Started With MSP-EXP430G2 LaunchPad
3
Getting Started With MSP-EXP430G2 LaunchPad
3.1
Getting Started
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The first time the MSP-EXP430G2 LaunchPad Experimenter Board is used, a demo application
automatically starts as soon as the board is powered from the USB host. To start the demo, connect the
MSP-EXP430G2 LaunchPad with the included mini USB cable to a free USB port. The demo application
starts with an LED toggle to show the device is active. More information about the demo application can
be found in Section 3.2.
3.2
Demo Application, Internal Temperature Measurement
The LaunchPad includes a pre-programmed MSP430G2553 device already installed in the target socket.
When LaunchPad is connected via USB, the demo starts with an LED toggle sequence. The onboard
emulation generates the supply voltage and all the signals necessary to start.
Press button P1.3 to switch the application to a temperature measurement mode. A reference temperature
is taken at the beginning of this mode, and the LEDs of the LaunchPad signal a rise or fall in temperature
by varying the brightness of the on-board red or green LED, respectively. The reference temperature can
also be recalibrated with another button press on P1.3. The collected temperature data is also
communicated via back-channel UART through the USB emulation circuitry back to the PC. The
transmitted values representing the temperature measured with the MSP430G2553 internal temperature
sensor in Fahrenheit and can be displayed with any terminal application or the Temperature Sensor GUI
available on the MSP430 LaunchPad wiki page
http://processors.wiki.ti.com/index.php/MSP430_LaunchPad_(MSP-EXP430G2). The serial communication
port on the PC must be configured with 2400 bps, one stop bit, and no flow control to display the values
correctly.
The demo application uses the on-chip peripherals of the MSP430G2553 device such as the 10-bit ADC,
which samples the internal temperature sensor, and 16-bit timers, which drive the PWM to vary brightness
of the LEDs and enable software UART for communication with the PC. The MSP430G2553 offers a USCI
interface that is capable of communicating through UART at up to 2 MBaud, but to be aligned with all the
other MSP430G2xx devices, the demo uses the Timer UART implementation, which can be used on all
the other devices. This way the demo can be used with any other MSP430G2xx device with an integrated
ADC, without any change in the program. The source code for this pre-loaded demo application is
available for download in the Projects section of the MSP430 LaunchPad wiki page. Further information
on the Temperature Sensor application and other examples and applications can be found on the
MSP430 LaunchPad wiki page as well.
The provided applications can be a great starting point for various custom applications and give a good
overview of the manifold possibilities of the MSP430G2xx Value Line devices. Also available are the
executable and source files for a GUI, which displays the data that is being communicated back to the PC
from the LaunchPad.
8
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4
Develop an Application With the MSP-EXP430G2 LaunchPad
4.1
Developing an Application
The integrated development environments (IDEs) shown in Section 2 offer support for the whole
MSP430G2xx Value Line. The MSP-EXP430G2 LaunchPad needs only a connection to the USB of the
Host PC—there is no external hardware required. The power supply and the Spy-Bi-Wire JTAG signals
TEST and RST must be connected with jumper J3 to allow the onboard emulation connection to the
device, as shown in Section 5. Now the preferred device can be plugged into the DIP target socket of the
LaunchPad (see Figure 2). Both PDIP14 and PDIP20 devices of the MSP430G2xx Value Line and the
MSP430F20xx family can be inserted into the DIP socket aligned to pin 1. A complete list of supported
devices can be found in Section 4.7.
Figure 2. Insert Device Into Target Socket
The following example for Code Composer Studio v4 shows how to download and debug the demo
application described in Section 3.2.
4.2
Program and Debug the Temperature Measurement Demo Application
The source code of the demo application can be downloaded from the MSP430 LaunchPad wiki page.
Download the project folder and unpack it to a location of your choice. For this demo, Code Composer
Studio v4 or newer must be installed.
The demo application can be loaded to the CCS workspace by clicking File→Import. Select the location of
the extracted project files and import Existing projects into Workspace. Now the MSP-EXP430G2Launchpad project appears inside the CCS workspace. The project must be marked as the active project
to start programming and debugging the device.
Connect the LaunchPad with an inserted MSP430G2553 device to the host PC and click the Debug button
on the CCS Toolbar. The MSP-EXP430G2 LaunchPad is initialized and the download of the compiled
demo application starts. The CCS view switches to a debugging interface once the download is completed
and the application is ready to start. Figure 3 shows Code Composer Studio v4 with the MSP-EXP430G2
LaunchPad demo application in debug view.
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Develop an Application With the MSP-EXP430G2 LaunchPad
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Figure 3. Code Composer Studio™ v4 in Debugging Mode
4.3
Disconnect Emulator From Target With Jumper J3
The connection between the MSP-EXP430G2 emulator and the attached target device can be opened
with the jumper array J3. This can be useful to access an attached eZ430 target board by disconnecting
the Spi-Bi-Wire JTAG lines RST and TEST or if the JTAG lines are used for other application purposes.
The jumper array can also be used to measure the power consumption of the LaunchPad application. For
this intention, all connections except VCC must be opened, and a multi meter can used on the VCC
Jumper to measure the current of the MSP-EXP430G2 target device and its peripherals. The jumper J5
VCC also must be opened if the LaunchPad board is powered with an external power supply over J6
Table 1 or the eZ430 interface J4.
NOTE: The assignment of jumper J3 has been changed in MSP-EXP430G2 revision 1.5, see the
comments in Table 1 to find the assignment for a specific board revision.
Table 1. Jumper Connection J3 Between Emulator and Target
Jumper
Signal
1
VCC
Target socket power supply voltage (power consumption test jumper) (located on 5 before Rev. 1.5)
Description
2
TEST
Test mode for JTAG pins or Spy-Bi-Wire test clock input during programming and test (located on 1 before
Rev. 1.5)
3
RST
Reset or Spy-Bi-Wire test data input/output during programming and test (located on 2 before Rev. 1.5)
4
RXD
UART receive data input (direction can be selected by jumper orientation) (located on 3 before Rev. 1.5)
5
TXD
UART transmit data output (direction can be selected by jumper orientation) (located on 4 before Rev. 1.5)
Jumpers 4 and 5 connect the UART interface of the emulator to the target device pins P1.1 and P1.2. The
direction of the UART signal lines can be selected by the orientation of the attached jumpers. In horizontal
orientation, the jumpers connect TXD to P1.1 and RXD to P1.2, as they are used for the software UART
communication on the demo application (see Section 3.2). In vertical orientation, the jumpers connect the
TXD signal to P1.2 and the RXD signal to P1.1, as required for the MSP430G2553 USCI.
10
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4.4
Program Connected eZ430 Target Boards
The MSP-EXP430G2 LaunchPad can program the eZ430-RF2500T target boards, the eZ430-Chronos
watch module, or the eZ430-F2012T/F2013T. To connect one of the ez430 targets, connector J4 must be
populated with a 0.050-in (1.27-mm) pitch male header, as shown in Figure 4.
Figure 4. MSP-EXP430G2 LaunchPad With Attached eZ430-RF2500 Target Board
To program the attached target without interfering with the LaunchPad socket board, jumper connections
TEST and RST of J3 must be open. The interface to the eZ430 target board is always connected to the
MSP-EXP430G2 emulator, so the programming and debugging of a connected LaunchPad target device
is possible only if the eZ430 target is not connected on the same time. The application UART, on the other
hand, is connected directly to the LaunchPad target device, and jumper J3 can be closed to monitor the
transmission from the LaunchPad target to the attached eZ430. This way both possible connections, from
the device to the PC and from the device to the eZ430, can be established without changing the direction
of the UART pins.
The VCC connection to the eZ430 interface is directly connected to the LaunchPad target VCC and can
be separated with jumper J3, if the LaunchPad itself should be powered via a connected battery on J4. To
supply the eZ430 interface with the onboard emulator the jumper J3 VCC needs to be closed.
Table 2 shows the pinout of the eZ430 debugging interface J4, the first pin is the left pin located on the
emulator part of the LaunchPad.
Table 2. eZ430 Debugging Interface
4.5
Pin
Signal
1
TXD
UART transmit data output (UART communication from PC or MSP430G2xx to eZ430 target board)
Description
2
VCC
Power supply voltage (J3 VCC needs to be closed to supply via onboard emulator)
3
TEST / SBWTCK
Test mode for JTAG pins and Spy-Bi-Wire test clock input during programming and test
4
RST / SBWTDIO
Reset, Spy-Bi-Wire test data input/output during programming and test
5
GND
Power supply ground
6
RXD
UART receive data input (UART communication from eZ430 target board to PC or MSP430G2xx)
Connecting a Crystal Oscillator
The MSP-EXP430G2 LaunchPad offers a footprint for a variety of crystal oscillators. The XIN and XOUT
signals of the LFXT1 oscillator can support low-frequency oscillators like a watch crystals of 32768 Hz or a
standard crystal with a range defined in the associated data sheet. The signal lines XIN and XOUT can
also be used as multipurpose I/Os or as a digital frequency input. More information on the possibilities of
the low-frequency oscillator and the possible crystal selection can be found in the MSP430x2xx Family
User's Guide (SLAU144) or the device-specific data sheet.
The oscillator signals are connected to J2 to use the signals on an attached application board. In case of
signal distortion of the oscillator signals that leads to a fault indication at the basic clock module, resistors
R29 and R28 can be used to disconnect the pin header J2 from the oscillating lines.
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Develop an Application With the MSP-EXP430G2 LaunchPad
4.6
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Connecting a Satellite Board
The LaunchPad is the perfect experimenter board to start hardware development with the MSP430G2xx
Value Line. Connectors J1 and J2 and the power supply at J6 are aligned in a 0.1-in (2.54-mm) grid to
allow an easy and inexpensive development of a breadboard extension module. These satellite boards
can access all the signals of the LaunchPad target device. So the satellites can hold their own device and
use the LaunchPad as a pure programming interface, or they can work with the device that is plugged into
the LaunchPad socket. The alignment of the connectors and the pinout can be found in Section 5. The
MSP-EXP430G2 LaunchPad kit includes two female 10-pin PCB connectors to get started with the first
extension board right away.
4.7
Supported Devices
Texas Instruments offers several MSP430 devices in a PDIP package that is compatible with LaunchPad.
Table 3 shows the supported devices.
Table 3. Supported Devices
12
Part Number
Family
MSP430F2001
F2xx
16-bit Ultra-Low-Power Microcontroller, 1kB Flash, 128B RAM, Comparator
Description
MSP430F2002
F2xx
16-bit Ultra-Low-Power Microcontroller, 1kB Flash, 128B RAM, 10-Bit SAR A/D, USI for SPI/I2C
MSP430F2003
F2xx
16-bit Ultra-Low-Power Microcontroller, 1kB Flash, 128B RAM, 16-Bit Sigma-Delta A/D, USI for SPI/I2C
MSP430F2011
F2xx
16-bit Ultra-Low-Power Microcontroller, 2kB Flash, 128B RAM, Comparator
MSP430F2012
F2xx
16-bit Ultra-Low-Power Microcontroller, 2kB Flash, 128B RAM, 10-Bit SAR A/D, USI for SPI/I2C
MSP430F2013
F2xx
16-bit Ultra-Low-Power Microcontroller, 2kB Flash, 128B RAM, 16-Bit Sigma-Delta A/D, USI for SPI/I2C
MSP430G2001
G2xx
16-bit Ultra-Low-Power Microcontroller, 512B Flash, 128B RAM
MSP430G2101
G2xx
16-bit Ultra-Low-Power Microcontroller, 1kB Flash, 128B RAM
MSP430G2111
G2xx
16-bit Ultra-Low-Power Microcontroller, 1kB Flash, 128B RAM, Comparator
MSP430G2121
G2xx
16-bit Ultra-Low-Power Microcontroller, 1kB Flash, 128B RAM, USI for SPI/I2C
MSP430G2131
G2xx
16-bit Ultra-Low-Power Microcontroller, 1kB Flash, 128B RAM, 10-Bit SAR A/D, USI for SPI/I2C
MSP430G2201
G2xx
16-bit Ultra-Low-Power Microcontroller, 2kB Flash, 128B RAM
MSP430G2211
G2xx
16-bit Ultra-Low-Power Microcontroller, 2kB Flash, 128B RAM, Comparator
MSP430G2221
G2xx
16-bit Ultra-Low-Power Microcontroller, 2kB Flash, 128B RAM, USI for SPI/I2C
MSP430G2231
G2xx
16-bit Ultra-Low-Power Microcontroller, 2kB Flash, 128B RAM, 10-Bit SAR A/D, USI for SPI/I2C
MSP430G2102
G2xx
16-bit Ultra-Low-Power Microcontroller, 1kB Flash, 256B RAM, USI for SPI/I2C, 16 Touch-Sense
Enabled I/O Pins
MSP430G2202
G2xx
16-bit Ultra-Low-Power Microcontroller, 2kB Flash, 256B RAM, USI for SPI/I2C, 16 Touch-Sense
Enabled I/O Pins
MSP430G2302
G2xx
16-bit Ultra-Low-Power Microcontroller, 4kB Flash, 256B RAM, USI for SPI/I2C, 16 Touch-Sense
Enabled I/O Pins
MSP430G2402
G2xx
16-bit Ultra-Low-Power Microcontroller, 8kB Flash, 256B RAM, USI for SPI/I2C, 16 Touch-Sense
Enabled I/O Pins
MSP430G2112
G2xx
16-bit Ultra-Low-Power Microcontroller, 1kB Flash, 256B RAM, Comparator, USI for SPI/I2C, 16 TouchSense Enabled I/O Pins
MSP430G2212
G2xx
16-bit Ultra-Low-Power Microcontroller, 2kB Flash, 256B RAM, Comparator, USI for SPI/I2C, 16 TouchSense Enabled I/O Pins
MSP430G2312
G2xx
16-bit Ultra-Low-Power Microcontroller, 4kB Flash, 256B RAM, Comparator, USI for SPI/I2C, 16 TouchSense Enabled I/O Pins
MSP430G2412
G2xx
16-bit Ultra-Low-Power Microcontroller, 8kB Flash, 256B RAM, Comparator, USI for SPI/I2C, 16 TouchSense Enabled I/O Pins
MSP430G2132
G2xx
16-bit Ultra-Low-Power Microcontroller, 1kB Flash, 256B RAM, 10-Bit SAR A/D, USI for SPI/I2C, 16
Touch-Sense Enabled I/O Pins
MSP430G2232
G2xx
16-bit Ultra-Low-Power Microcontroller, 2kB Flash, 256B RAM, 10-Bit SAR A/D, USI for SPI/I2C, 16
Touch-Sense Enabled I/O Pins
MSP430G2332
G2xx
16-bit Ultra-Low-Power Microcontroller, 4kB Flash, 256B RAM, 10-Bit SAR A/D, USI for SPI/I2C, 16
Touch-Sense Enabled I/O Pins
MSP430G2432
G2xx
16-bit Ultra-Low-Power Microcontroller, 8kB Flash, 256B RAM, 10-Bit SAR A/D, USI for SPI/I2C, 16
Touch-Sense Enabled I/O Pins
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Table 3. Supported Devices (continued)
Part Number
4.8
Family
Description
MSP430G2152
G2xx
16-bit Ultra-Low-Power Microcontroller, 1kB Flash, 256B RAM, 10-Bit SAR A/D, Comparator, USI for
SPI/I2C, 16 Touch-Sense Enabled I/O Pins
MSP430G2252
G2xx
16-bit Ultra-Low-Power Microcontroller, 2kB Flash, 256B RAM, 10-Bit SAR A/D, Comparator, USI for
SPI/I2C, 16 Touch-Sense Enabled I/O Pins
MSP430G2352
G2xx
16-bit Ultra-Low-Power Microcontroller, 4kB Flash, 256B RAM, 10-Bit SAR A/D, Comparator, USI for
SPI/I2C, 16 Touch-Sense Enabled I/O Pins
MSP430G2452
G2xx
16-bit Ultra-Low-Power Microcontroller, 8kB Flash, 256B RAM, 10-Bit SAR A/D, Comparator, USI for
SPI/I2C, 16 Touch-Sense Enabled I/O Pins
MSP430G2153
G2xx
16-bit Ultra-Low-Power Microcontroller, 1kB Flash, 256B RAM, 10-Bit SAR A/D, Comparator, USCI for
I2C/SPI/UART, 24 Touch-Sense Enabled I/O Pins
MSP430G2203
G2xx
16-bit Ultra-Low-Power Microcontroller, 2kB Flash, 256B RAM, Comparator, USCI for I2C/SPI/UART,
24 Touch-Sense Enabled I/O Pins
MSP430G2313
G2xx
16-bit Ultra-Low-Power Microcontroller, 2kB Flash, 256B RAM, Comparator, USCI for I2C/SPI/UART,
24 Touch-Sense Enabled I/O Pins
MSP430G2333
G2xx
16-bit Ultra-Low-Power Microcontroller, 2kB Flash, 256B RAM, 10-Bit SAR A/D, Comparator, USCI for
I2C/SPI/UART, 24 Touch-Sense Enabled I/O Pins
MSP430G2353
G2xx
16-bit Ultra-Low-Power Microcontroller, 2kB Flash, 256B RAM, 10-Bit SAR A/D, Comparator, USCI for
I2C/SPI/UART, 24 Touch-Sense Enabled I/O Pins
MSP430G2403
G2xx
16-bit Ultra-Low-Power Microcontroller, 8kB Flash, 512B RAM,, Comparator, USCI for I2C/SPI/UART,
24 Touch-Sense Enabled I/O Pins
MSP430G2413
G2xx
16-bit Ultra-Low-Power Microcontroller, 8kB Flash, 512B RAM, Comparator, USCI for I2C/SPI/UART,
24 Touch-Sense Enabled I/O Pins
MSP430G2433
G2xx
16-bit Ultra-Low-Power Microcontroller, 8kB Flash, 512B RAM, 10-Bit SAR A/D, Comparator, USCI for
I2C/SPI/UART, 24 Touch-Sense Enabled I/O Pins
MSP430G2453
G2xx
16-bit Ultra-Low-Power Microcontroller, 8kB Flash, 512B RAM, 10-Bit SAR A/D, Comparator, USCI for
I2C/SPI/UART, 24 Touch-Sense Enabled I/O Pins
MSP430G2513
G2xx
16-bit Ultra-Low-Power Microcontroller, 16kB Flash, 512B RAM, Comparator, USCI for I2C/SPI/UART,
24 Touch-Sense Enabled I/O Pins
MSP430G2533
G2xx
16-bit Ultra-Low-Power Microcontroller, 16kB Flash, 512B RAM, 10-Bit SAR A/D, Comparator, USCI for
I2C/SPI/UART, 24 Touch-Sense Enabled I/O Pins
MSP430G2553
G2xx
16-bit Ultra-Low-Power Microcontroller, 16kB Flash, 512B RAM, 10-Bit SAR A/D, Comparator, USCI for
I2C/SPI/UART, 24 Touch-Sense Enabled I/O Pins
MSP-EXP430G2 On-Board Emulator
The MSP-EXP430G2 on-board emulator enables programming and debugging of supported MSP430
devices (see Section 4.7). It offers several features that are enabled by a 2-wire JTAG interface called
Spy-Bi-Wire. For a more feature-complete emulator, the MSP-FET430UIF flash emulation tool may be
more appropriate. See Table 4 for more details on the MSP-EXP430G2 LaunchPad on-board emulator.
Table 4. Features Supported by On-Board Emulator
Support by LaunchPad
(MSP-EXP430G2)
Feature
Supports MSP430F20xx, F21x2, F22xx, G2x01, G2x11, G2x21, G2x31, G2x53
✓
Allows fuse blow
Adjustable target supply voltage
Fixed 2.8-V target supply voltage
✓
Fixed 3.6-V target supply voltage
4-wire JTAG
2-wire JTAG
✓
Application UART
✓
Supported by CCS
✓
Supported by IAR
✓
SLAU318D – July 2010 – Revised April 2013
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MSP-EXP430G2 Hardware
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5
MSP-EXP430G2 Hardware
5.1
Device Pinout
Figure 5. Device Pinout
14
MSP-EXP430G2 LaunchPad Experimenter Board
Copyright © 2010–2013, Texas Instruments Incorporated
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Schematics
5.2
MSP-EXP430G2 Hardware
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GND
GND
GND
EZ_VBUS
RESET
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
C1
10n
RESET
R1 47k
C2
16p
EZ_VCC
C3
16p
Q1
12MHz
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
HTCK
HTMS
HTDI
HTDO
C5
100n
URTS
UDTR
UDSR
UCTS
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
R2
47k
GND
R3
47k
RST3410
BRXDI
BTXDI
URXD
UTXD
SCL
SDA
R4
R5
R6
R7
100R
100R
100R
100R
J3
9
7
5
3
1
CLK3410
EZ_VCC
TEST/SBWTCK
RST/SBWTDIO
P1.2
P1.1
VCC
SBW & UART I/F to Argon
SBWTCK 10
SBWTDIO 8
6
BTXD
4
BRXD
EZ_VCC 2
1
2
3
4
5
6
SL127L6TH
J4
SBW & UART I/F to external Target
P1.1
EZ_VCC
SBWTCK
SBWTDIO
GND
P1.2
Removed U2: SN75240PW from SBW connections
MSP-EXP430G2 EMULATOR 1/2
1.4
Copyright © 2010–2013, Texas Instruments Incorporated
C4
1u/6.3V
EZ_VCC
R26
270
GND
LED0
green
15
MSP-EXP430G2 LaunchPad Experimenter Board
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TP6TP4TP2
TP7TP5TP3TP1
Figure 6. Schematics, MSP-EXP430G2 Emulator (1 of 2), Revision 1.4
RST3410
1u/6.3V
C8
EZ_VCC
R16
47k
GND
DNP
BRXDI
BTXDI
CLK3410
SCL
SDA
R10
10k
R11
15k
R12
33k
D1
1N4148
R19
3k3
R22
3k3
GND
1
9
12
2
22
17
19
10
11
32
31
30
29
27
26
VREGEN
RESET
WAKEUP
SUSPEND
CLKOUT
U3
E1
SCL
SDA
WC
100n
PUR
DP
DM
CTS
DSR
DCD
RI/CP
RTS
DTR
TEST0
TEST1
VCC
VCC1
VDD18
GND
GND1
GND2
C11
100n
6
5
8
7
CAT24FC32UI
VSS VCC
E2
E0
U5
TUSB3410VF
SIN
SOUT
SDA
SCL
P3.0
P3.1
P3.3
P3.4
X1
X2
2
1
3
4
C13
5
6
7
13
14
15
16
20
21
23
24
3
25
4
8
18
28
R13 1k5
GND
EZ_VCC
C12
100n
GND
UCTS
UDSR
URTS
UDTR
EZ_VCC
R18
100k/1%
R20
100k/1%
C9
22p
GND
EZ_VBUS
C7
100n
GND GND
R15 33R
R14 33R
C10
22p
GND
5
6
3
4
GND
U2
IN1 OUT1
IN2 OUT2
FB
GND RES
EN
8
7
1
2
TPS77301DGK
RESET
VCC = +3.6V
R8
61k5
R9
33k
EZ_VCC
C6
USB_MINI_B5
SHIELD4
SHIELD3
SHIELD2
SHIELD1
GND
ID
D+
D-
VBUS
Mini USB
Connector
U$2
1u/6.3V
GND
2
1
GND
EZ_D-
S4
S3
S2
S1
5
4
3
EZ_VBUS
R21
33k
EZ_D+
GND
MSP-EXP430G2 EMULATOR 2/2
1.4
Copyright © 2010–2013, Texas Instruments Incorporated
EZ_VCC
UTXD
URXD
R25
1k5
R23
100R
R17 DNP
47k
R24
1k5
EZ_VCC
GND
4
2
5
3
1
GND
NC
IO2
IO1
VCC
SLAU318D – July 2010 – Revised April 2013
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MSP-EXP430G2 Hardware
Figure 7. Schematics, MSP-EXP430G2 Emulator (2 of 2), Revision 1.4
MSP-EXP430G2 Hardware
www.ti.com
0R
R29
DNP
R28
XIN
VCC
GND
XOUT
P1.0
P1.6
J1
1
2
3
4
5
6
7
8
9
10
R34
47K
VCC
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P2.0
P2.1
P2.2
20
19
18
17
16
15
14
13
12
11
RST/SBWTDIO
20 Pin Socket
IC1
1
2
3
4
5
6
7
8
9
10
Socket: TBD
Type: TBD
R27 GND
47K
S2
P1.3
20
19
18
17
16
15
14
13
12
11
J2
MSP-EXP430G2 TARGET SOCKET
GND
XIN
XINR
XOUTR XOUT
TEST/SBWTCK
RST/SBWTDIO
P1.7
P1.6
P2.5
P2.4
P2.3
GND
2
1
2
1
1.4
Copyright © 2010–2013, Texas Instruments Incorporated
Ext_PWR
J6
GND
C21
12pF
270R
0R
R32 J5-1
R33 J5-2
470R
S1
17
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DNP
DNP
C22
12pF
LED1
green
LED2
red
DNP
C24
100nF
GND
C14
1nF
C23
10uF/10V
GND
1
2
3
4
C20
100nF
QUARZ5
Q2
1
2
3
Figure 8. Schematics, MSP-EXP430G2 Target Socket, Revision 1.4
TP6TP4TP2
TP7TP5TP3TP1
GND
GND
GND
EZ_VBUS
RESET
C5
100n
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
C1
10n
RESET
R1 47k
C2
16p
EZ_VCC
C3
16p
Q1
12MHz
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
HTCK
HTMS
HTDI
HTDO
C4
1u/6.3V
EZ_VCC
R26
270
LED0
green
GND
URTS
UDTR
UDSR
UCTS
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
R2
47k
GND
R3
47k
RST3410
BRXDI
BTXDI
URXD
UTXD
SCL
SDA
R4
R5
R6
R7
100R
100R
100R
100R
CLK3410
EZ_VCC
VCC
TEST/SBWTCK
RST/SBWTDIO
P1.2
BRXD
SBW & UART I/F to Argon
9
7
5
3
1
1
2
3
4
5
6
SL127L6TH
J4
SBW & UART I/F to external Target
J3
changed on Rev 1.5
EZ_VCC 10
SBWTCK 8
SBWTDIO 6
4
BTXD
2
P1.1
BRXD
BTXD
P1.1
VCC
SBWTCK
SBWTDIO
GND
P1.2
MSP-EXP430G2 EMULATOR 1/2
1.5
Copyright © 2010–2013, Texas Instruments Incorporated
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MSP-EXP430G2 Hardware
Figure 9. Schematics, MSP-EXP430G2 Emulator (1 of 2), Revision 1.5
MSP-EXP430G2 Hardware
www.ti.com
RST3410
1u/6.3V
C8
EZ_VCC
R16
47k
GND
DNP
BRXDI
BTXDI
CLK3410
SCL
SDA
R10
10k
R11
15k
EZ_VCC
UTXD
URXD
R25
1k5
R23
100R
R17 DNP
47k
R24
1k5
EZ_VCC
R12
33k
D1
1N4148
R19
3k3
R22
3k3
GND
1
9
12
2
22
17
19
10
11
32
31
30
29
27
26
VREGEN
RESET
WAKEUP
SUSPEND
CLKOUT
U3
SCL
SDA
WC
E1
C13
100n
PUR
DP
DM
CTS
DSR
DCD
RI/CP
RTS
DTR
TEST0
TEST1
VCC
VCC1
VDD18
GND
GND1
GND2
C11
100n
6
5
8
7
CAT24FC32UI
VSS VCC
E2
E0
U5
TUSB3410VF
SIN
SOUT
4
3
2
1
SDA
SCL
P3.0
P3.1
P3.3
P3.4
X1
X2
GND
5
6
7
13
14
15
16
20
21
23
24
3
25
4
8
18
28
R13 1k5
GND
EZ_VCC
C12
100n
GND
UCTS
UDSR
URTS
UDTR
EZ_VCC
R18
100k/1%
R20
100k/1%
C9
22p
GND
EZ_VBUS
C7
100n
GND GND
R15 33R
R14 33R
C10
22p
GND
5
6
4
3
GND
U2
IN1 OUT1
IN2 OUT2
EN
FB
GND RES
8
7
1
2
TPS77301DGK
RESET
VCC = +3.6V
R8
61k5
R9
30k
EZ_VCC
C6
USB_MINI_B5
SHIELD4
SHIELD3
SHIELD2
SHIELD1
GND
ID
D+
D-
VBUS
Mini USB
Connector
U$2
1u/6.3V
GND
2
1
GND
EZ_D-
S4
S3
S2
S1
5
4
3
EZ_VBUS
R21
33k
EZ_D+
GND
MSP-EXP430G2 EMULATOR 2/2
1.5
Copyright © 2010–2013, Texas Instruments Incorporated
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4
2
5
3
1
GND
NC
IO2
IO1
VCC
Figure 10. Schematics, MSP-EXP430G2 Emulator (2 of 2), Revision 1.5
R29
0R
XIN
VCC
GND
XOUT
P1.0
P1.6
J1
1
2
3
4
5
6
7
8
9
10
DNP
VCC
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P2.0
P2.1
P2.2
R34
47K
GND
20
19
18
17
16
15
14
13
12
11
20 Pin Socket
IC1
1
2
3
4
5
6
7
8
9
10
Socket: TBD
Type: TBD
R27
47K
RST/SBWTDIO
GND
GND
XIN
XINR
XOUTR XOUT
TEST/SBWTCK
RST/SBWTDIO
P1.7
P1.6
P2.5
P2.4
P2.3
S1
GND
20
19
18
17
16
15
14
13
12
11
S2
P1.3
J2
MSP-EXP430G2 TARGET SOCKET
1.5
Copyright © 2010–2013, Texas Instruments Incorporated
2
1
2
1
Ext_PWR
J6
GND
C23
10uF/10V
C21
12pF
DNP
R28
0R
R32 J5-1
270R
R33 J5-2
470R
C14
1nF
DNP
DNP
C22
12pF
LED1
green
LED2
red
C24
100nF
1
2
3
GND
1
2
3
4
C20
100nF
QUARZ5
Q2
SLAU318D – July 2010 – Revised April 2013
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MSP-EXP430G2 Hardware
Figure 11. Schematics, MSP-EXP430G2 Target Socket, Revision 1.5
MSP-EXP430G2 Hardware
www.ti.com
5.3
PCB Layout
Figure 12. Layout, LaunchPad Top Layer
SLAU318D – July 2010 – Revised April 2013
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MSP-EXP430G2 Hardware
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Figure 13. Layout, LaunchPad Bottom Layer
22
MSP-EXP430G2 LaunchPad Experimenter Board
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Figure 14. Layout, LaunchPad Silkscreen
SLAU318D – July 2010 – Revised April 2013
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MSP-EXP430G2 Hardware
5.4
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Bill of Materials (BOM)
Table 5. Bill of Materials
Ref Name
Number
per Board
1
C2, C3
2
16pF 0402 (33 pF on Rev 1.3)
2
C9, C10
2
22pF 0402
3
C1
1
10nF 0402
4
C5, C7, C11, C12, C13
5
100nF 0402
5
C4, C6, C8
3
1µF, 6.3V 0604
6
D1
1
1N4148 MicroMELF
7
EZ_USB
1
Mini-USB connector
8
Q1
1
SMD oscillator 12 MHz
9
R1, R2, R3, R16, R17
3
47k 0402 (R16, R17 is not populated)
10
R8
1
61k5 0402 (6k8 in Rev 1.3 and prior)
11
R19, R22
2
3k3 0402
12
R9
1
30k 0402 (3k3 in Rev 1.3 and prior)
13
R12, R21
2
33k 0402
14
R4, R5, R6, R7, R23
5
100R 0402
15
R14, R15
2
33R 0402
16
R18, R20
2
100k 0402
17
R13, R24, R25
3
1k5 0402
18
R10
1
10k 0402
19
R11
1
15k 0402
20
U1
1
MSP430F1612IPMR
21
U4
1
TPD2E001DRLR
22
U3
1
TUSB3410VF
23
U2
1
TPS77301DGKR
24
U5
1
I2C EEPROM 128k (AT24C128-10TU-2.7)
25
TP1, TP2, TP3, TP4,
TP5, TP6, TP7
26
C14
1
1nF, SMD 0603
27
C21, C22
28
C23
1
10µF, 10 V, SMD 0805
29
C20, C24
1
100nF, SMD 0603 (C24 is not populated)
30
LED0, LED1
2
Green DIODE 0603
31
LED2
1
Red DIODE 0603
32
R34, R27
1
47k SMD 0603 (R34 is not populated)
33
R32, R26
2
270R SMD 0603
34
R33
1
470R SMD 0603
35
R28, R29
2
0R SMD 0603
36
IC1
1
DIP20 socket
37
Q2
38
J1, J2,
2
10-pin header, TH, 2.54mm male (female header included)
39
J3
1
2X05 pin header male
40
J4
41
J5
1
2x02 pin header male
42
J6
2
3-pin header, male, TH
43
S1, S2
2
Push button
Pos.
24
Description
12.5pF, SMD 0603 (not populated)
Clock crystal 32kHz (Micro Crystal MS3V-T1R 32.768kHz CL:12.5pF ±20ppm
included)
6 pin header male 1.28mm
MSP-EXP430G2 LaunchPad Experimenter Board
Copyright © 2010–2013, Texas Instruments Incorporated
SLAU318D – July 2010 – Revised April 2013
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Suggested Reading
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6
Suggested Reading
The primary sources of MSP430™ information are the device-specific data sheets and the family user's
guides. The most up-to-date versions of those documents can be found at the Texas Instruments MSP430
page or the MSP430 LaunchPad wiki.
http://www.ti.com/msp430, http://processors.wiki.ti.com/index.php/MSP430_LaunchPad_(MSP-EXP430G2)
To get an inside view of the supporting IDEs like CCS and IAR, download the latest version from the web
pages above and read the included user's guides and documentation inside the installation folder.
Documents describing the IAR tools (Workbench/C-SPY, the assembler, the C compiler, the linker, and
the library) are located in common\doc and 430\doc. All necessary CCS documents can be found in the
msp430\doc folder in the CCS installation path. The FET user's guide also includes detailed information
on how to set up a project for the MSP430 using IAR or CCS, and it is included in most of the IDE
releases and on the TI MSP430 side.
7
Frequently Asked Questions (FAQ)
1. Can other programming tools like the MSP-FET430UIF interface the MSP-EXP430G2 LaunchPad
socket device?
The LaunchPad experimenter board works with any programming tool that supports the 2-wire Spy-BiWire interface. Both the MSP430 USB FET (MSP-FET430UIF) and the Gang Programmer (MSPGANG430) support these devices, but the connection must be made directly to the dedicated Spy-BiWire ports. See MSP-FET430 Flash Emulation Tool User's Guide (SLAU138) for details on using
MSP430 USB FET and the Gang Programmer for a 2-wire Spy-Bi-Wire interface. Do not try to connect
the standard JTAG connector to the MSP-EXP430G2 pinheads, as this could result in damage to the
attached hardware.
2. Does the MSP-EXP430G2 support fuse blow?
The MSP-EXP430G2 LaunchPad experimenter board onboard debugging interface lacks the JTAG
security fuse-blow capability. To ensure firmware security on devices going to production, the USB
Flash Emulation Tool or the Gang Production Programmer, which support the fuse-blow feature, are
recommended.
3. What versions of IAR Embedded Workbench and Code Composer Studio are supported?
The MSP-EXP430 LaunchPad hardware is supported by IAR Embedded Workbench KickStart Version
6.00 or higher and Code Composer Studio v4 or higher. To download the software and for more
information on the supported software visit the LaunchPad Wiki page.
http://processors.wiki.ti.com/index.php/MSP430_LaunchPad_(MSP-EXP430G2)
4. What are the part numbers for the connectors between the LaunchPad emulator board and the other
eZ430 target boards?
Header: MALE CONN HEADER .050" 6POS PCB R/A (for example, Digi-Key: S9016E-06-ND)
Socket: FEMALE CONN HEADER .050" 6POS PCB R/A (for example, Digi-Key: S9010E-06-ND)
5. I am not able to select the MSP430 Application UART and cannot receive data.
Ensure that the Application UART driver is correctly installed. This is done by installing either IAR
Embedded Workbench or Code Composer Studio v4.
To determine if the driver is correctly installed:
a. Plug in the MSP-EXP430G2 LaunchPad with the included Mini USB cable.
b. Right click My Computer and select Properties.
c. Select the Hardware tab and click on Device Manager.
d. Under Ports (COM & LPT) should be an entry for "MSP430 Application UART (COM xx)".
If the entry is there, but no characters are received, reconnect the LaunchPad to the PC and restart the
application to reload the drivers. If the Application UART is not listed, install the driver by following the
instructions in Section 2.2.
6. The device is not answering to any communication, JTAG or UART.
If you are experiencing difficulties in communicating to the attached MSP430 target device, even
though all the communication drivers for the MSP-EXP430G2 are loaded correctly, the emulator is
probably set to a wrong communication state. This can be fixed by reconnecting the LaunchPad
SLAU318D – July 2010 – Revised April 2013
Submit Documentation Feedback
MSP-EXP430G2 LaunchPad Experimenter Board
Copyright © 2010–2013, Texas Instruments Incorporated
25
Frequently Asked Questions (FAQ)
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Experimenter Board and restarting the communicating application. Also make sure that all the jumpers
on J3 are connected properly between the emulator and the target device. On revision 1.5 and newer,
the orientation of the UART jumpers must align with the software implementation on the target device.
7. I soldered the 32-kHz crystal to the board and the oscillation is not starting.
The MSP430 driving capabilities for the low-frequency crystal is limited, because it is designed for lowpower applications. To ensure proper operation, the load on these pins must be as small as possible,
the matching capacitors (12.5 pF for 32.768 kHz) for the crystal must be soldered to the board, and the
resistors R28 and R29 must be removed. Measuring the frequency of the oscillation with an
oscilloscope typically disturbs the oscillation.
8. The power consumption of the board is much higher than specified in the device data sheet, or I am
not measuring a current at all.
The MSP430 device inside of the LaunchPad socket can be powered with an external power supply at
header J6 or J4. To measure the power consumption in this mode, the VCC jumper, usually used to
measure the power consumption, must be removed, and the current must be measured directly at the
power supply. If the jumper J3 is not removed, the emulator circuitry of the LaunchPad is powered as
well. Measuring the current consumption during a debug session is not possible, because the cross
current through the JTAG connection influences the measurement. The most accurate results are
achieved with all jumpers on J3 removed. If the measurement is still not matching the data sheet
parameters, make sure that the code is aligned with all the power saving recommendations on the web
site MSP430™ - The World's Lowest Power MCU.
LaunchPad revisions 1.3 and 1.4 come with R34 populated. The 47-kΩ resistor is used as a pullup for
the button S2. If the port P1.3 is driven to ground, as suggested to keep the power consumption down,
the pullup resistor generates an additional current of approximately 77 µA. To reduce the power
consumption, the port should stay in input mode or the resistor should be removed if button S2 is not
used. The internal pullup of the MSP430G2xx can be used instead.
26
MSP-EXP430G2 LaunchPad Experimenter Board
Copyright © 2010–2013, Texas Instruments Incorporated
SLAU318D – July 2010 – Revised April 2013
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【Important Notice for Users of this Product in Japan】
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This development kit is NOT certified as Confirming to Technical Regulations of Radio Law of Japan
If you use this product in Japan, you are required by Radio Law of Japan to follow the instructions below with respect to this product:
1.
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Use this product in a shielded room or any other test facility as defined in the notification #173 issued by Ministry of Internal Affairs and
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【ご使用にあたっての注】
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