Development Kit Manual

SIM20-TE User Guide

Document Title:

Version:

Date:

Status:

Document Control ID:

SIM20 TE User Guide

1.01

2010-01-14

Release

SIM20-TE_UGD_V1.01

General Notes

SIMCOM offers this information as a service to its users, to support application and engineering efforts that use the products designed by SIMCOM. The information provided is based upon requirements specifically provided to SIMCOM by the users. SIMCOM has not undertaken any independent search for additional relevant information, including any information that may be in the customer’s possession. Furthermore, system validation of this product designed by SIMCOM within a larger electronic system remains the responsibility of the customer or the customer’s system integrator. All specifications provided herein are subject to change.

Copyright

This document contains proprietary technical information which is the property of SIMCOM

Limited., copying of this document and giving it to others and the using or communication of the contents thereof, are forbidden without express authority. Offenders are liable to the payment of damages. All rights reserved in the event of grant of a patent or the registration of a utility model or design. All specification provided herein are subject to change without notice at any time.

Copyright © Shanghai SIMCOM Wireless Solutions Ltd. 2010

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Contents

1 Safety precautions .....................................................................................................................6

2 Acronyms and Abbreviations....................................................................................................7

3 Scope of the user’s guide ..........................................................................................................8

4 TE Overview.............................................................................................................................9

4.1 Contents of the kit............................................................................................................9

4.2 General Description .......................................................................................................10

5 Accessory Interface.................................................................................................................12

5.1 USB Interface.................................................................................................................12

5.2 UART Interface..............................................................................................................12

5.3 IIC Interface ...................................................................................................................12

5.4 SPI Interface...................................................................................................................13

5.5 Man and Machine Interface ...........................................................................................13

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List of Figure

Figure 1: Contents of the SIM20 kit..........................................................................................9

Figure 2: Block diagram..........................................................................................................10

Figure 3: TE placement...........................................................................................................11

Figure 4: UART interface........................................................................................................12

Figure 5: Man and machine interface......................................................................................13

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List of Table

Table 1: Acronyms and abbreviations .......................................................................................7

Table 2: Contents of the kit .......................................................................................................9

Table 3: Switch status and function.........................................................................................13

Table 4: Test holes interface description .................................................................................14

Table 5: GPIO interface description........................................................................................15

Table 6: Working mode of SIM20 module..............................................................................15

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1 Safety precautions

Read Carefully

Please make sure that the use of this product is allowed in the country and in the environment required. The use of this product may be dangerous and has to be avoided in the following areas:

Where, it can interfere with other electronic devices in environments such as hospitals, airports, aircrafts, etc.

Where there is risk of explosion such as gasoline stations, oil refineries, etc

It is responsibility for the user to enforce the country regulation and the specific environment regulation.

Do not disassemble the product; any mark of tampering will compromise the warranty validity.

We recommend the following instructions of the hardware user guide for a correct wiring of the product. The product has to be provided with a stabilized voltage source and the wiring has to be conformed to the security and fire prevention regulations.

The system integrator is responsible for the functioning of the final product; therefore, care has to be taken to the external components of the module, as well as of any project or installation issue, because the risk of disturbing the wireless communication networks or external devices having impact on the SIM20 module. Should there be any doubt, please refer to the technical documentation and the regulations in force.

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2 Acronyms and Abbreviations

Table 1: Acronyms and abbreviations

NC

RF

IIC

SRD

Abbreviation Description

AC Alternating Current

ADC

DC

Analog-to-Digital Converter

Direct Current

I/O

LED

Input/Output

Light Emitting Diode

LDO

MCU

SPI

USB

Li-Ion

PCB

UART

Low Dropout Linear Regulators

Micro Controller Unit

Serial Peripheral Interface

Universal Serial Bus

Lithium-Ion

Printed Circuit Board

Universal Asynchronous Receiver & Transmitter

Not Connect

Radio Frequency

Inter-Integrated Circuit

Short Range Devices

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3 Scope of the user’s guide

This document provides the usage of SIM20-TE-A/SIM20-TE-B/SIM20-TE-C, users can get useful information about the SIM20-TE quickly through this document.

This document is subject to change without notice at any time.

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4 TE Overview

4.1 Contents of the kit

Development equipment is provided as the following table. Please check the contents of the

SIM20 kit. If anything is missing, please contact the supplier.

Table 2: Contents of the kit

Figure 1: Contents of the SIM20 kit

Part NO. Description

1 SIM20-TE

3 Antenna

Quantity

1

1

1

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4.2 General Description

SIMCOM supplies the SIM20 kit to assist the designer, during the developing project phase, to develop applications based upon the wireless modules.

The SIM20 kit provides a fully functional solution for a complete data application.

4.2.1 Block Diagram

The SIM20 kit can be split into several functional blocks depending on the implemented function, as the following Figure 2.

Antenna

U102

3.3V

MISO

NSS

C2D

GND

Test port

SCLK

MOSI

NRST

GPIO3

SPI SIM20

UART

Test port

IIC

RXD

TXD

SDA

SCL

U103

CP2103

U101

LDO

3.3V

J101

MinUSB

ON

C2D

OFF

S101

GND VCC_5V

Test port

Figure 2: Block diagram

This development kit can be used for data application, and the SIM20 module interface features as following:

· UART interface

· IIC interface (reserved)

· SPI interface (reserved)

Note:

If users want to use IIC or SPI interface, please contact the supplier.

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4.2.2 Mechanical feature

· Sizes 39*42*10 mm

· Operating temperature range: -20°C to + 60°C

· Storage temperature: -40°C to +85°C

The placement of the TE is showed as the following figure:

Figure 3: TE placement

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5 Accessory Interface

This chapter describes the hardware interfaces:

· USB interface

· UART interface

· IIC interface（reserved）

· SPI interface（reserved）

5.1 USB Interface

There is one Mini-USB receptacle on SIM20-TE. We can connect the TE board and PC by a

USB cable（Mini-USB plug to USB plug）.The power supply to the TE board is from PC through

USB cable. But PC must be installed CP2103 driver, because PC communicates with the TE board via CP2103（USB to UART chip）.

Note:

If the TE board is powered via VCC_5V, the element FB102 on the TE board should be

removed.

5.2 UART Interface

The signal pins used in this interface are TXD and RXD. The main UART interface default supports 115200bps.

Figure 4: UART interface

In addition, peripheral equipment can be connected through test ports on the TE board.

5.3 IIC Interface

IIC interface is reserved.

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5.4 SPI Interface

SPI interface is reserved.

5.5 Man and Machine Interface

U102

MISO

NSS

C2D

GND

SCLK

MOSI

NRST

GPIO3

SIM20

RXD

TXD

SDA

SCL

ON

C2D

OFF

S101

GND

D101

VCC_5V

J101

Mini-USB

Figure 5: Man and machine interface

There are three LED indicators、one switch and test interface on the TE board.

5.5.1 LED indicators and switch

D101: Power indicator.

D102: It is connected to SDA pad of SIM20 module (default GPIO, indicate sending data.).

D103: It is connected to SCK pad of SIM20 module (default GPIO, indicate receiving data).

S101: It is connected to C2D pad of SIM20 module, switch status and function as following:

Table 3: Switch status and function

Switch status Function description

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5.5.2 Test interface

Table 4: Test interface description

Test ports

VCC_5V

Function description

Power supply to the TE board

GND Ground

RXD SIM20 module send data

TXD SIM20 module receive data

SDA

SCL

MISO

MOSI

Sending data control/ IIC data（reserved）

Receiving data control/ IIC clock（reserved）

SPI master in slave out

SPI master out slave in

NSS

C2D

SPI slave selected output signal

Command mode and Data mode control

GPIO3 GPIO is controlled by CP2103（reserved）

Note:

Test ports can be used for signal status detection and redevelopment by users. But if users want to use it to do redevelopment, please make sure that the signal of the TE board is not crosstalk with the external signal.

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5.5.3 Operating indication

1、Connecting the TE board and PC through USB cable

2、Users can configure GPIO of CP2103 to control SIM20 module by Port configuration tool

Table 5: GPIO interface description

GPIO

GPIO.0

Function description

GPIO.0=1 LDO enable, power supply to SIM20 module is on

GPIO.0=0 LDO disable, power supply to SIM20 module is off

GPIO.2

GPIO.1=0 SIM20 module will be reset by driving this pin low for at least 15μs

GPIO.2=1 SIM20 module will be data mode

GPIO.2=0 SIM20 module will be command mode

GPIO.3 Reserved

3、UART interface can be used to update program when C2D is driven low .

Note:

Please note priority when switch S101 and GPIO.2 of CP2103 are used at the same time, the following table shows the priority.

Table 6: Working mode of SIM20 module

Switch status GPIO.2 C2D

GPIO.2=0

OFF C2D=0（Command mode）

GPIO.2=1

GPIO.2=0 C2D=0（Command mode）

ON

GPIO.2=1 C2D=1（Data mode）

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Contact us:

Shanghai SIMCOM Wireless Solutions Ltd

Add: Building A, SIM Technology Building, No. 633, Jinzhong Road, Changning

District, Shanghai P. R. China 200335

Tel: +86 21 3252 3300

Fax: +86 21 3252 3301

URL: www.sim.com/wm

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