ST STR730-EVAL User manual

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
2/29
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
3/29
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
4/29
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
5/29
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
NEXT
SEL
resistor R33
ARM7TDMITM
CN2 Rx and Tx only
JTAG
CN1
CN5
IC7 DC powe
r
filter IC3
GD1
CN3
CN4
LD 10
LD 12
LD 14
LD 16
LD 2
LD 4
LD 6
LD 8
IC8
BACK
PREV
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
6/29
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
7/29
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
8/29
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
9/29
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
10/29
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
PREV
J2
SW17SW16 J5
J7