Forum Discussion
Altera_Forum
Honored Contributor
8 years agoHi kyle,
As you suggested the assignment editor is showing GPIO_1[29] to GPIO_1[34] with I/O standard and 3.3 V LVTTL. Still when I access from linux space the GPIO_1[29] corressponds to GPIO198 does not glow. I have chosen Unused pins as Input trigerred...the question is if there is wrong in .SOF how HPS_LED(GPIO_1[53]) is glowing from the linux space... If I give this command echo "leds-gpio" > /sys/bus/platform/drivers/leds-gpio/unbind -sh: echo: write error: No such device why is this error shown...should I map my pin as HPS_GPIO or GPIO_1[29] is more than enough..any specific reason to add HPS_GPIO?? thanks Ravi