LED blink STM32f429 with uClinux.

STM32f429 Discovery board has two user LED, and the they LED defined in the uClinux image. STM32f429 Discovery board pin configuration exists at ~/stm32f429-linux-builder/uclinux/arch/arm/mach-stm32/iomux.c that seek keywords 'PG13' or 'PG14' where define gpio PGx to LED configurations.

You can do blinking LEDs from console.

Before Using:

echo 109 > /sys/class/gpio/export  echo 110 > /sys/class/gpio/export

Brinking example:

#!/bin/sh echo 109 > /sys/class/gpio/export echo 110 > /sys/class/gpio/export echo out > /sys/class/gpio/gpio109/direction echo out > /sys/class/gpio/gpio110/direction a=1 while [ $a -ne 0 ] do    if [ $a -eq 1 ]    then       a=2       echo 1 > /sys/class/gpio/gpio109/value       echo 0 > /sys/class/gpio/gpio110/value    else       a=1       echo 0 > /sys/class/gpio/gpio109/value       echo 1 > /sys/class/gpio/gpio110/value    fi    sleep 1 done