Hi, I followed "The Zynq Book Tutorials for Zybo and Zedboard" to create gpio_leds and gpio_btns,
download image to zedboard, I'm using petalinux/vivado 2015.2, I saw there were two gpiochip 902
and gpiochip 906, I did:
echo 902 > export
echo out > direction
echo 1 > value
I tried on both 902 and 906, the leds didn't turn on and off.
Anybody knows why?