STEVAL-IAS001V1
Security keypad demonstration board based on ST7Lite39F2 and STM1403
Data Brief
Features
4 x 3 key matrix 3 LEDs (green for power, red for error and yellow for magnetic lock) 4 jumpers for physical intrusion detection with battery back-up and buzzer On-board SPI EEPROM for event logging On-board RS232 driver to interface with the PC Power supply adaptor (3.4 V - 19 V) Embedded in-circuit programming capability STEVAL-IAS001V1 the RS232. At the time of manufacturing an additional board has been connected to allow incircuit programming of the microcontroller. The two boards can be easily disconnected so that the keypad controller for the security door evaluation board can be used independently.
Description
This demonstration boards offers the functionality of a keypad controller in security door applications. The aim of this board is to assist in the development of a keypad decoding system and to display associated information through LEDs for all necessary actions such as power on, door open and error. The entire system has been developed to target low-end and low-cost application areas and has been realized with the help of the ST7LITE39F2 microcontroller. A useful additional feature is the support of system protection from physical intrusion, using the STM1403. STEVAL-IAS001V1 aims to display the capabilities of ST's general purpose microcontroller to fit the market segment of home automation and security, keeping the system cost as low as possible. The board can operate in 2 modes:
User (stand-alone) mode Administrator mode through the board through PC graphical user interface
When the board is connected to the power supply the system enters the user configuration mode. Administrator mode can be accessed through the use of a PC, where SCI communication is set up and used between the PC and the board through
July 2008
Rev 1
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www.st.com 4
For further information contact your local STMicroelectronics sales office.
1
G
2
Schematic
3 2 1
R3 10k
U2
JACK
VCC=3.3V (150~200mA)
BLD# PF PF1 VCCSW# VCCSW# VCC
R2 10k
1 2 3 4 RST# MR SAL# VSS
TP TP1 TP TP2 TP TP3 TP4
16 15 14 13
MCU
R5 10k
VCC
C11 10nF
100nF
C3
U4
1
1
1
VCC
VCC
R14 330 MLOCK D3
JP1
JP2
JP3
1
EEPROM
R12 10M
Vout
5 6 7 8
2
2
2
1 2 3 4
S# VCC Q HOLD W C VSS D
8 7 6 5
SCK MOSI 10k
330 ERROR
ST7LITE39F2M6
1 2 VCC 3 RESET 4 SS 5 SCK 6 MISO 7 MOSI ERROR 8 9 PB5 RDI 10 VSS OSC1 VDD OSC2 RESET# PA0 PA1 SS#/PB0 SCK/PB1 PA2 MISO/PB2 PA3 PA4 MOSI/PB3 PB4 PA5/ICCDATA PB5 PA6/ICCLCK RDI/PB6 PA7/TDO
PA0 PA1 MLOCK PA3 PA4 ICCDATA ICCCLK TDO
20 19 18 17 16 15 14 13 12 11
M95080-WMNP
2
PB5
PA4
PA PA1
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Board schematic
Figure 1.
POWER SUPPLY TAMPER DETECTION
Vout
VCC
VCC
U1 D1
4.3V~20V J1
1
C1
I
O
3
R1 330
KEYPAD CONTROLLER
KF33BDT-TR
C2 100nF
100nF
C5 2.2uF/10VPOWER
Vout
12 11 10 9 VOUT VBAT PF0# VREF
Board schematic
D4
BZ1 BUZZER
VCC
BAT54JFILM
STM1403ASNQ6F
C6 1uF/10V
BT1 3V
JP4
R11 10k
R4
U3
R10 10M
NH
R7
R8 10M
NL
SS MISO
VCC
D2 R13
NH
10M NL
Vout
3.3V GND
VCC
KEYPAD 3X4
RS232 INTERFACE
U5
RDI
J2
TDO
VCC
3
1
2
12 8 11 10
R1OUT R1IN R2IN R2OUT T1IN T1OUT T2OUT T2IN
13 9 14 7
ICCDATA
R6 10k
CON1
4
5 6
ICC CON
C7 100nF
3.3V
VCC
16
C4
1 6 2 7 3 8 4 9 5
ICCCLK
C8 100nF
ICCDATA ICCCLK RESET
1 3 4 5 2 6
R9 10k
7 9
VCC
8
C1+ C1C2+ C2V+ V-
GND ST3232CDR
15
100nF
DB9/F
*
PA3
0
ICC
#
1 3 5 7 9
2 4 6 8 10
C9 100nF
C10 100nF
AM00657v1
PA0
STEVAL-IAS001V1
STEVAL-IAS001V1
Revision history
2
Revision history
Table 1.
Date 02-Jul-2008
Document revision history
Revision 1 Initial release. Changes
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STEVAL-IAS001V1
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