Board Interface Connections; Push Buttons; Displays - ST STR730-EVAL User Manual

Introduction
1.2

Board interface connections

Diagrams and wiring descriptions for these connectors are provided in
Schematics on page
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
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19. The following connections are supported by the board:
UM0559
Chapter 4: