ST STR730-EVAL Manual de usuario

June 2008 Rev 1 1/29

UM0559

User Manual

STR730-EVAL evaluation board for STR73xF

Introduction

The STR730-EVAL board is a complete development platform for the STR73x series.

It is a cost effective, flexible and open design to demonstrate the capability of the STR730

series of flash micro-controllers and to enable rapid evaluation of the STR73x devices and

available peripherals.

It includes the high performance STR730F ARM7TDMITM processor running at up to

36 MHz, that features a rich set of peripherals and serial communication interfaces,

including CAN (controller area network), STR730F, SPI EEPROM, I2C EEPROM and an

LCD display.

The board can be used as a versatile stand-alone test platform, supporting a CAN interface

and a UART RS232 interface, LED displays, 2 x 16 LCDs, piezo buzzer, test buttons, a JTAG

connector and an analog channel.

A wide choice of third party development tools are readily available in addition to the those

available from STMicroelectronics.

Figure 1. STR730-EVAL board

Host to JTAG

interface

High speed JTAG

debug port

connection

STR730-EVAL board

www.st.com

Contents UM0559

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Contents

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.1 Processor and memory devices on this board . . . . . . . . . . . . . . . . . . . . . . 3

1.2 Board interface connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.3 Push buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.4 Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2 Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.2 Processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.3 Debug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.4 Prototype area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.5 Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.6 Power supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.7 CAN interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.8 RS232 serial interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.9 Analog input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.10 LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.11 Push buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.12 Option jumper placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.13 Option switch settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3 Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.1 CAN bus connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.2 RS232 serial data connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.3 Debug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.4 Input/output summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4 Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

5 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

UM0559 Introduction

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1 Introduction

STMicroelectronics is a global independent semiconductor company that designs, develops,

manufactures and markets a broad range of semiconductor integrated circuits and discrete

devices used in a wide variety of applications.

The STR730-EVAL board is based on the STR730FZ2T7, a highly integrated

microcontroller, running at up to 36 MHz that uses the popular ARM7TDMITM 32-bit RISC

CPU featuring on-chip high speed single voltage flash memory and high-speed RAM, clock

generation via PLL, and numerous on-chip peripherals.

This board is intended as low cost development platform to demonstrate the capability of the

STR730 series of flash micro-controllers and to enable rapid evaluation of the STR730

devices and available peripherals.

The STR730-EVAL board has 8-Kbit SPI EEPROM and 8-Kbit I2C EEPROM and supports

CAN and RS232 interfaces. It includes a 2 x 16 programmable LCD display supported by

select, next, back, previous and wake-up push buttons.

The hardware platform of the STR730F series is supported by an extensive software

support package, including device drivers in ANSI C source form and demonstration

software. It is flashed with a demonstration application that shows the basic features of the

device. Development tools are readily available. This is complemented by a range of third

party real-time OS and middleware.

Design schematics can also be supplied in electronic format to those customers with

compatible design environments.

Note: ARM®and ARM7TDMITM are registered trademarks of ARM Limited in the EU and other

countries.

1.1 Processor and memory devices on this board

●STR730F ARM7TDMITM processor running at up to 36 MHz, IC11:

– 144-pin TQFP version,

– 256 Kbytes flash program memory,

–16KbytesRAM,

– embedded 1.8 V voltage regulator for core supply,

– nested interrupt controller.

●Clocking is performed by a surface mounted 8 MHz quartz.

●Serial ROMs:

– 8-Kbit SPI EEPROM connected to the buffered serial peripheral interface (BSPI2):

IC7,

–I

2C EEPROM: 8-Kbit EEPROM connected to the I2C0 interface: IC8.

Introduction UM0559

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1.2 Board interface connections

Diagrams and wiring descriptions for these connectors are provided in Chapter 4:

Schematics on page 19. The following connections are supported by the board:

●CAN uses a single 9 D-type connector with microswitch selectable low or high speed

transceiver: CN4

●UART0 (Rx and Tx only) connected to a 9-way male D-type RS232 connector: CN2

●UART1 (Rx and Tx only) connected to a 9-way male D-type RS232 connector: CN3

●JTAG, 20 pin IDC connector: CN1

●variable resistor, voltage range 0 to 4.5 V: R33

●LM35 temperature sensor: IC9

●prototype area: GD1

●test points, various test points are located throughout the board, for details see

Chapter 4: Schematics on page 19

●main power supply: CN5

1.3 Push buttons

The following push buttons are provided:

●next (NEXT), programmable switch: SW12

●previous (PREV), programmable switch: SW13

●reset (RST), board reset: SW14

●select (SEL), programmable switch: SW15

●back (BACK), programmable switch: SW16

●wakeup (WAKE-UP), push button to bring processor out of low power mode: SW17

1.4 Displays

The following LCD and LEDs are provided:

●LCD display, 2x16 LCD display connected to a general purpose input/output LCD

interface; green back light display: LCD1

●surface mount red, +5 V power indicator: LD19

●bi-color red/green: LD17, LD21, LD22, LD23, LD24, LD25

●low consumption LEDs red: LD1, LD2, LD3, LD4, LD5, LD6, LD7, LD8, LD9, LD10,

LD11, LD12, LD13, LD14, LD15, LD16

UM0559 Hardware

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2 Hardware

Figure 2. STR730-EVAL board layout block diagram

LD 9

LD 11

LD 13

LD 15

LD 1

LD 3

LD 5

LD 7

RS232-A RS232-B CAN

LCD display

Buzzer

Variable

UART 0

Rx and Tx only UART 1

SPI EEPROM

I2C EEPROM

+5 V power

STR730FZ2T7

Prototype area

WAKE-UP

RST

SEL

resistor R33

ARM7TDMITM

CN2 Rx and Tx only

JTAG

CN1

CN5

IC7 DC powe

filter IC3

GD1

CN3

CN4

LD 10

LD 12

LD 14

LD 16

LD 2

LD 4

LD 6

LD 8

IC8

BACK

SPKR1

LM35

IC9

LD 23

LD 25

LD 17

LD 22

LD 21

LD 24

8 MHz quartz

XT1

L9669 IC2

L9616 IC5

Hardware UM0559

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Figure 3. STR730-EVAL board system block diagram

LCD

Variable

Prototype area LEDs

JTAG

In-circuit

emulator

RS232

Rx and Tx

RS232

Rx and Tx

Piezo

Buzzer

Audio out

Analog input

UART0

UART1

5 V power

resistor

EEPROM

I2C

SPI

EEPROM

GPIO

Temperature

sensor

BSPI2

I2C0

GPIO4/PWM High speed/

fault tolerant

CANH and

CANL

CAN0/

CAN1

UM0559 Hardware

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2.1 Overview

The STR730-EVAL board is a general purpose evaluation platform with CAN (controller

area network), and RS232 interfaces.

2.2 Processor

The board supports the STR730FZ2T7 ARM7TDMITM silicon - 144-pin TQFP version. This

chip runs at a frequency of up to 36 MHz.

Boot modes and configuration options are set using microswitches.

2.3 Debug

Software debug uses a standard 20-pin JTAG connection. This may connect to a standard

host to JTAG interface.

2.4 Prototype area

A 2.54 x 2.54 mm gridded area of 1mm holes is available for prototyping using wire wrap or

similar prototyping techniques.

2.5 Reset

The reset sources are:

●power on reset,

●push button reset,

●JTAG reset from an in-circuit emulator.

2.6 Power supplies

Power to the board is supplied using a lump in cord power supply providing 5 V to the board.

All other required voltages are provided by on-board voltage regulators.

2.7 CAN interface

A general purpose, asynchronous serial I/O data port connected through a 9-pin D-type

male connector with microswitch selectable low speed fault tolerant transceiver (L9669) or

low or high speed selectable transceiver (L9616). See Section 3.1: CAN bus connector on

page 14.

The L9669 transceiver only works in normal mode, the wake-up functionality is not

implemented.

Hardware UM0559

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2.8 RS232 serial interfaces

Two general purpose, asynchronous serial I/O data ports are connected through 9-pin D-

type male connectors refer to Section 3.2: RS232 serial data connector on page 14.

RS232-A connects directly to UART0, transmit and receive only. RS232-B connects to

UART1, transmit and receive only.

RTS is shorted to CTS and DTR is shorted to DSR at the connector for both interfaces.

2.9 Analog input

The following analog inputs are provided, see the schematics Figure 10 on page 19:

●LM35 temperature sensor IC9 is connected to AIN1,

●variable resistor R33 is connected to AIN0.

2.10 LEDs

2.10.1 Software controlled LEDs

The LEDs in Table 1 are software controlled by PIO pins.

Table 1. Software controlled LEDs

LED Connected to Color Schematic

LD1 P4_0

Red Figure 15 on page 24

LD2 P4_1

LD3 P4_2

LD4 P4_3

LD5 P4_4

LD6 P4_5

LD7 P4_6

LD8 P4_7

LD9 P4_8

LD10 P4_9

LD11 P4_10

LD12 P4_11

LD13 P4_12

LD14 P4_13

LD15 P4_14

LD16 P4_15

UM0559 Hardware

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2.10.2 Status LED

LD19 is the +5 V power indicator. This LED is red, see Figure 11 on page 20.

2.11 Push buttons

The schematic diagram for the push buttons is in Figure 10 on page 19.

LD17 PWM5_P2.7 Red/green

Figure 10 on page 19

LD21 PWM3_P2.5

LD22 PWM4_P2.6

LD23 PWM1_P2.3

LD24 PWM2_P2.4

LD25 PWM0_P2.0

Table 1. Software controlled LEDs (continued)

LED Connected to Color Schematic

Table 2. Push buttons

Button Connected to

Next SW12 INT6_P5.8

Previous SW13 INT7_P5.9

Board reset SW14 notRSTIN

Select SW15 INT8_P5.10

Back SW16 INT9_P511

Wake-up SW17 WUP16_P2.10

Hardware UM0559

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2.12 Option jumper placement

Figure 4. Option jumpers and switches

SW15

SW13 SW14

SW8

SW7

SW5 SW1

SW2

SW3

SW4

SW11

SW12

SW6

SW9

J3 J6

WAKE-UP

RST

NXT

SEL

Prototype area

SW10

STR730FZ2T7

ARM7TDMITM

BACK

SW17SW16 J5

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