Topaz i.MX25 Development Kit Technical Reference ManualDevelopment+Kit...Topaz i.MX25 Development...

Copyright © 2010 Device Solutions Ltd, All rights reserved.

Revision: 0.7 30 April 2010

Topaz i.MX25 Development Kit Technical Reference Manual

Quick Reference

What is in this document?

Detailed information about the Topaz Development Kit hardware

Mechanical drawings

What is not in this document (and where do

I find it)?

Setup information. See the Getting Started Guide.

Detailed software development information. Refer to documentation provided with the Operating System Build (Windows CE, Linux or .NET Micro Framework) for this information.

Where can I get support? http://DeviceSolutions.net/Support.aspx

Where can I find out about updates?

Device Solutions Blog: http://blog.DeviceSolutions.net

http://devicesolutions.net/Support.aspx

http://blog.devicesolutions.net/


www.DeviceSolutions.net

Table of Contents

1 INTRODUCTION ............................................................................................................... 3

2 SYSTEM COMPONENTS.................................................................................................. 4

2.1 TOPAZ CPU MODULE ....................................................................................................... 5

2.2 USER INTERFACE COMPONENTS ....................................................................................... 5

2.3 COMMUNICATIONS COMPONENTS .................................................................................... 6

2.4 FILE STORAGE................................................................................................................... 6

2.5 EXPANSION ........................................................................................................................ 7

2.6 POWER SUPPLY ................................................................................................................. 7

2.7 JTAG CONNECTOR ........................................................................................................... 7

3 CONNECTORS AND SIGNALS ........................................................................................ 8

3.1 CONNECTOR SUMMARY .................................................................................................... 8

3.2 CONNECTOR DETAILS ....................................................................................................... 9

4 SPECIFICATIONS ........................................................................................................... 13

4.1 TEMPERATURE RATINGS ................................................................................................ 13

4.2 DC OPERATING CONDITIONS.......................................................................................... 13

4.3 POWER CONSUMPTION ................................................................................................... 13



1 Introduction The Topaz i.MX25 Development Kit is a flexible development system that enables rapid prototyping of devices using the Device Solutions Topaz CPU module.

At the heart of the Topaz CPU module is the Freescale i.MX25 processor.

This document details the technical specifications of the Topaz Development Kit. For information on getting started, please refer to the Getting Started Guide.

The product details presented in this manual are subject to change. Please contact Device Solutions for the latest information before beginning any new designs based on this information.

For more information, you should also refer to:

Topaz Technical Reference Manual

Topaz i.MX25 Development Kit Schematics

Help provided with the Operating System you are using with the Topaz Development Kit

Application notes published on the Device Solutions web site



2 System Components This section starts give details on each of the system components that makes up the Topaz i.MX25 Development Kit.

It is divided into the following parts:

Block Diagram

Topaz CPU module

User Interface Components

Communications Components

Expansion and File Storage

Power Supply

The block diagram below shows the main components on the Development Kit board, and how they are connected. The following section gives detail on the main components in this diagram. For details on specific i.MX25 features (e.g. PWM, CAN etc.) please refer to the Topaz CPU Reference Manual.

LCD ExpansionAccelerometer

Topaz CPU Module

USB OTG

LCDI2S

I2C

SD Card

RESET

GPIO

SD Card

RJ-45 (Ethernet)

Topaz i.MX25 Development KitSimplified Block DiagramSome connection not shown to aid clarity

RESET button

JTAG

BootConfiguration

Switches

PowerConnector VIN

Audio Codec

USB AFull Speed Host

USB mini ABHigh Speed OTG

USER button

USER LED

Touch SPI

Ethernet

USB Host

20-pinJTAG Header

3x32-way headers for expansionNote that pins are multiplexed so not all options are available at the same time. 3x ADC inputs4x PWM2x CAN

4x UARTAudio Line In/Out

Microphone In

CameraInterface

SecurityTamper Circuits

2x SPI 3x I2C

57 GPIO ONE WIRE

PowerVIN and 3.3V

2x SIM

Stereo Jack

UART1DB-9RS232

Transceiver

GPIO



2.1 TOPAZ CPU MODULE

The Topaz CPU Module is at the core of the Topaz Development Kit. The Topaz includes a Freescale i.M25 processor, 64Mbytes of SDRAM and 128Mbytes of flash, a power management chip, and Ethernet PHY.

The block diagram illustrates how the various functions of the Topaz CPU are used in the Development Kit. The i.MX25 has many features, however they are not all available at the same time.

2.2 USER INTERFACE COMPONENTS

2.2.1 LCD and Touch-Screen

The Topaz CPU has an integrated LCD controller and touch-screen controller. The Development Kit LOCD expansion connector includes these signals, along with SPI, I2C and power to enable the connection of a variety of displays. LCD options available include 4.3” and 7” touch screens. You can use the specifications in this document to develop an adapter board to test different displays.

2.2.2 User Button, switches and LED

The Development Kit includes a single push button connected to a GPIO for use by user applications. There is also a DIP switch and a LED that are connected to GPIO for this purpose.

GPIO

Push-button switch 4-4

LED 3-17

DIP switch 1-4

2.2.3 Accelerometer

The Topaz Development Kit includes a Freescale MMA7660FC Accelerometer. This is a low-g accelerometer which include features for determining tilt and orientation of a device. It is connected to the I2C bus and has an interrupt signal connected to GPIO 1-5.

2.2.4 Audio

A Freescale SGTL5000 audio codec is included on the Topaz Development Kit. It provides stereo audio input and output, and is connected to the Topaz CPU via the AUD4 signals for audio and I2C for control. The headphone output signals go to the audio connector on the Development kit, and the other interfaces (line in and out, and microphone in) are available on the EXP1 header.

2.2.5 Analog Inputs

There are 3 ADC channels available for application use. These are present on the EXP2 connector. Refer to the Topaz CPU Reference Manual for details on the capabilities of these inputs.

2.2.6 Configuration Switches

There are 4 configuration switches on the Topaz Development Kit.

Switch these to the ON position (label side) to enable.

Switch Label Function

1 BOOT 0 When enabled, these switches put the board into boot-loader mode. Use the supplied software and cable to download new firmware to the board. For normal operation these must be in the disabled position.

2 BOOT 1

3 LION LiIon signal to the Topaz Power Supply. Enable this signal if you are



powering the development kit from a LiIon battery.

4 GP 1-04 Switch available for application use. When enabled the GPIO line is pulled low.

2.2.7 Reset

The Reset button is connected to the MODULE_RESET signal on the Topaz CPU Module.

2.3 COMMUNICATIONS COMPONENTS

2.3.1 USB Host

The Development Kit includes a type A connector for attaching USB peripherals. This is a full speed (12Mbps) port. To use this port with a device that requires power (5V) you must be powering the Topaz with 5V.

2.3.2 USB OTG

The USB OTG port is a high-speed (480Mbps) port which can operate in host or function mode. When using the Development Kit with 4.3” or small displays, this port can also be used to power the system.

To use this port in host mode, you will need to provide 5V power via the alternative power connectors.

2.3.3 Serial Ports

The i.MX25 has 5 serial ports, and the Topaz Development Kit makes 4 of these available as:

RS232 level signals on a DB9 (UART1)

Logic level (3.3V) signals on EXP2 (UART2, UART3 and UART4)

The serial port signals are also multiplexed with other functions. The details are available in the Topaz CPU Reference Manual.

2.3.4 Ethernet

The Topaz Development kit provides 10/100 Ethernet via a RJ-45 connector.

The majority of the Ethernet functionality is implemented on the Topaz CPU module (MAC as part of the i.MX25 + an external PHY). The only additional components on the Development Kit are a few resistors and capacitors, and a RJ-45 connector with integrated magnetics. The RJ-45 connector includes 2 status LEDs.

Orange: Link Status

Green: Network Activity

2.4 FILE STORAGE

2.4.1 Internal Flash Storage

The Topaz CPU module includes a NAND device that is typically configured to provide file storage for your operating system of choice.

2.4.2 SD Card

The Topaz Development Kit includes a SD card slot which support standard sized SD memory and SDIO cards.



2.5 EXPANSION

The primary functions of the i.MX25 have been included on dedicated connectors, with the remaining pins made available on 0.1” headers. These are labelled EXP1, EXP2 and EXP3. The Topaz CPU Reference Manual is the best place to look for specific details on each function. The primary use has been labelled on the Topaz Development Board, however most signals can be used for more than one purpose.

When attaching to the EXP connectors, be aware that some signals are 1.8V only.

2.6 POWER SUPPLY

The Topaz Development Kit can be powered from:

USB mini-AB connector.

Barrel connector (J12)

2 pin header (J13)

The Topaz Development Kit will function with voltages ranging from 2.7 to 5.5V. A protection circuit is included to prevent higher voltages from damaging the board.

We recommend that 5V is used whenever possible as this enables the USB Host ports to be used.

2.7 JTAG CONNECTOR

A standard 20-pin ARM JTAG connector is present to allow firmware and application debugging using appropriate tools.



3 Connectors and Signals This section is a reference for all the connectors on the Topaz Development Kit.

It includes:

A summary of all connectors

Pin-out and part number details for each connector

3.1 CONNECTOR SUMMARY

The table below summarizes the connectors and switches found on Topaz Development Board. The sections following this table give specific details for each connector.

Designator Connector Location

J1 Stereo audio output Top

J2 RJ-45 Ethernet Top

J4 DB9 RS23 Serial (UART1) Top

J5 LCD Connector Bottom

J7 SD Card Bottom

J9 JTAG Top

J10 USB OTG Mini-AB Top

J11 USB Host –A Top

J12 Power (Barrel connector) Top

J13 Power (0.1” header) Top

EXP1 Expansion header 1 (0.1”) Top



SW1 Configuration Switches Top

RESET Reset Button Top

USER User Button Top

POWER Power LED Top

USER_LED User LED Top



3.2 CONNECTOR DETAILS

3.2.1 Power (J10, J12 and J13)

The Topaz Development Kit can be powered by:

J10 - USB Mini-AB connector

J12 – 2.1mm Barrel connector (centre positive)

J13 – 0.1” pitch header (+5V and 0V).

Not that powering the board via USB may not be sufficient for large LCDs (greater than 4.3”) or if you have devices attached to the expansion connectors or USB host port.

Note that J13 is not fitted to the board. This allows a polarized connector of your choice to be used.

3.2.2 RS232 Serial (J4)

This is a male DB9 connector. Signals are shown in the following table:

Pin Signal

1 N/C

2 RXD

3 TXD

4 N/C

5 0V

6 N/C

7 RTS

8 CTS

9 N/C

3.2.3 RJ-45 Ethernet

This is configured as a standard 100Mbps connection. Connect using standard Ethernet twisted-pair cabling. A crossover cable will be required if you are connecting directly to your PC.

3.2.4 SD Card (J7)

The SD card connector is connected to the SD1 controller of the i.MX25. It supports SD memory and SDIO cards. The signals are connected as show below.

Pin Signal

1 DAT3

2 CMD

3 0V

4 +3.3V

5 CLK

6 0V

7 DAT0

8 DAT1

9 DAT2

Card Detect GPIO 4-3

Write Protect GPIO 4-2



3.2.5 LCD and Touch Screen Interface (J5)

The Topaz Development Board has a 50-pin connector that includes all the signals required to interface to a number of different displays.

Note: Some of these signals are 1.8V. Refer to the Topaz Reference Manual for details before interfacing to this connector.

Pin Signal

1 +3.3V

2 +3.3V

3 VIN

4 VIN

5 CSPI1_MISO

6 CSPI1_MOSI

7 CSPI1_SS3

8 CSPI1_CLK

9 0V

10 LCD_LD0

11 LCD_LD1

12 LCD_LD2

13 LCD_LD3

14 LCD_LD4

15 LCD_LD5

16 LCD_LD6

17 LCD_LD7

18 LCD_LD8

19 LCD_LD9

20 LCD_LD10

21 LCD_LD11

22 LCD_LD12

23 LCD_LD13

24 LCD_LD14

25 LCD_LD15

26 0V

27 LCD_ACD_OE

28 LCD_VSYNC

29 LCD_HSYNC

30 LCD_LSCLK

31 0C

32 LCD_CONTRAST

33 GPIO 4-5

34 GPIO 4-6

35 GPIO 4-7

36 GPIO 4-8

37 GPIO 4-9



38 GPIO 4-10

39 GPIO 4-11

40 GPIO 4-12

41 I2C1_DAT

42 I2C1_CLK

43 0V

44 TOUCH_XN

45 TOUCH_XP

46 TOUCH_YN

47 TOUCH_YP

48 0V

49 VLED_FB

50 VLED

3.2.6 Configuration Switches (SW1)

Details on the Configuration Switches can be found in section 2.2.6.

3.2.7 Expansion Headers (EXP1, EXP2 and EXP3)

The Topaz Development Board has 3 general purpose expansion headers. These expose signals from the Topaz module that are not used directly on the Development Board.

Each signal is labelled on the Development Board.

Note that some signals are 1.8V.

EXP1 EXP2

Pin Signal Pin Signal Pin Signal Pin Signal

1 0V 2 0V 1 I2C1_CLK 2 PWM1

3 +3.3V 4 +3.3V 3 I2C1_DAT 4 PWM2

5 AudioLineIn-L 6 SPI1_MISO 5 ONE_WIRE 6 PWM3

7 AudioLineIn-R 8 SPI1_MOSI 7 CLKO 8 CAN_TXD

9 AudioLineOut-L 10 SPI1_RDY 9 0V 10 CAN_RXD

11 AudioLineOut-R 12 SPI1_CLK 11 ADC_REF 12 UART4_RXD

13 AudioMicIn 14 SPI1_SS0 13 ADC_AUX0 14 UART4_TXD

15 0V 16 SPI1_SS1 15 ADC_AUX1 16 UART4_CTS

17 0V 18 SPI1_SS3 17 ADC_AUX2 18 UART4_RTS

19 SIM1_CLK 20 SIM2_CLK 19 UART2_CTS 20 UART3_RXD

21 SIM1_RST 22 SIM2_RST 21 UART2_RTS 22 UART3_TXD

23 SIM1_VEN 24 SIM2_VEN 23 UART2_RXD 24 UART3_CTS

25 SIM1_TX 26 SIM2_TX 25 UART2_TXD 26 UART3_RTS

27 SIM1_PD 28 SIM2_PD 27 MODULE_RESET 28 +3.3V

29 SIM1_RX 30 SIM2_RX 29 VIN 30 VIN

31 GP 3-23 32 GP3-24 31 0V 32 0V

EXP3

Pin Signal Pin Signal

1 0V 2 0V

3 +3.3V 4 +3.3V



5 MESH_C 6 GP 3-19

7 MESH_D 8 ON/OFF

9 DRYICE_VOUT 10 CSI_D2

11 TAMPER_A 12 CSI_D3

13 TAMPER_B 14 CSI_D4

15 FUSE_VDD 16 CSI_D5

17 CSI_MCLK 18 CSI_D6

19 CSI_PIXCLK 20 CSI_D7

21 GP 3-15 22 CSI_D8

23 GP 3-16 24 CSI_D9

25 GP 1-5 26 CSI_HSYNC

27 GP 2-20 28 CSI_VSYNC

29 DRYICE_VBAT 30 VIN

31 0V 32 0V

3.2.8 RESET (SW3)

The RESET button shorts MODULE_RESET to 0V causing a hard reset of the CPU.

3.2.9 JTAG (J9)

The Topaz Development Board includes a standard 20-pin JTAG connector. The i.MX25 supports RTCK and DE_B signals and they have been included on this connector, however they are not necessary to use JTAG.

Pin Signal Pin Signal

1 +3.3V 2 Not connected

3 TRST 4 0V

5 TDI 6 0V

7 TMS 8 0V

9 TCK 10 0V

11 RTCK (ONE_WIRE) 12 0V

13 TDO 14 0V

15 MODULE_RESET 16 0V

17 DE_B (GP 2-20) 18 0V

19 Not connected 20 0V



4 Specifications

4.1 TEMPERATURE RATINGS

Parameter Min Max Units

Storage Temperature -40 105 ⁰C

Operating Temperature 0 70 ⁰C

4.2 DC OPERATING CONDITIONS

Parameter Min Max Units

Supply Voltage (VIN) 2.7 5.5 V

GPIO Voltage 1.8V I/O 3.3V I/O

1.8V 3.3V

V V

Maximum current Reg5 500 mA

Maximum current Reg2 400 mA

Maximum current VLED 30 mA

4.3 POWER CONSUMPTION

Preliminary power consumption measured on a Topaz Development System running Windows CE. LCD power is not included in these figures.

Maximum (playing video from USB key including audio): 235mA @ 5V

Idle: 145mA @ 5V

Suspend: 58mA @ 5V

Please note that these figures are preliminary and we expect power consumption to be lower after further tuning of the software.

4.4 DIMENSIONS

115

77

5 105

556

,5

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