September 2010
Doc ID 17476 Rev 1
1/22
UM0943
User manual
STEVAL-ILL029V1 front panel demonstration board
based on the STLED325
Introduction
This user manual explains the operation of a front panel demonstration board based on the
advanced LED controller driver STLED325 and the STM8S207K6 8-bit microcontroller as
the I
2
C master. The objective of this demonstration board is to show the features of the LED
controller driver STLED325, such as key scanning, RTC, IR decoding, standby
management, etc., for the market segment of DVD players, DVD recorders, set-top boxes,
washing machines and more, while keeping system costs as low as possible.
The system can be operated using the various front panel keys provided, as well as by
remote control. System I/O is handled completely by the STLED325 with minimal load on
the host processor.
Figure 1.
STLED325 front panel demo
The salient features of the system are:
■
4-digit, 7-segment (and decimal point) LED display
■
8 discrete LEDs
■
8 front panel keys for channel and brightness up/down, ok, menu, and standby
■
A bicolor power/standby LED
■
An interrupt LED (blinks with the interrupt)
■
A potentiometer for adjusting display brightness
■
Demonstration mode
■
Multi format remote control operation (only RC5 currently supported, but easily
extendable for various other formats.
■
Embedded in-circuit programming using a SWIM interface for the STM8S207K6
Refer to datasheet STM8S207K6;
Performance line, 24 MHz. 8-bit MCU, up to 128 Kbytes
Flash, integrated EEPROM,10-bit ADC, timers, 2 UARTs, SPI, I²C, CAN
.
www.BDTIC.com/ST
