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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
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8 years ago

" Hi kyle,

when you go to Assignment Editor there are 2 rows you see for each pins

GPIO_1[0] Location( This is changed to HPS_IO) and select Enable(Yes)

GPIO_1[1] I/O standard 3.3 V LVTTL

Once I did this and compiled and flashed the .SOF then Pin 2 of GPIO_1 cannot be accessed. I have a C file which changes the Set bits and Clr bits..But I am not able to take control of the GPIO_1 pin.Is there any jumper which we need to change.also are my configurations correct.

Once I get one pin I can map for others.

Kindly let me know."

regards

Ravi