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Altera_Forum
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9 years ago

HPS GPIO's ouputs stuck in high impedence?

I have an issue regarding a custom board the GPIOs where all the HPS IO’s are set to high impedance no matter to how they are set. I have tested the following: GPIO system on linux enablin...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
9 years ago

Hi kyle ,

even if I export 227 the pin is not glowing this is more to do with unbinding from linux as suggested by you last time

while I tried executing your command for unbind

echo "leds-gpio" > /sys/bus/platform/drivers/leds-gpio/unbind

following error observed:-sh: echo: write error: No such device

Any pointers to get over these errors and accessing the pins???

Let me know how I can make the pins unbind....then all the pins shall be accessed.

regards

Ravi chandran