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How can I configure BF702 PA0x pins into pulling down state after a power on but before code execution begin?

Processors & DSP ADIApproved Dec 17, 2020 00:00 1 replies Original on forum ↗
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ADIApproved Question
Dec 17, 2020 00:00

where can I find the detailed configuration info.? thanks.

ADIApproved Reply
Dec 24, 2020 00:00

Hi,

The GPIO’s will be tristated when both trstb and reset_b are low and the pull-up will come into picture once we are out of reset based on the conditions listed below.
If output is disabled and if IE is high and PADS_PCFG0.PUE bit is zero , then pad will be tri-stated.
If output is disabled and if IE is high and PADS_PCFG0.PUE bit is set , then pad will be pulled up.

There is nothing we can do on chip to drive a low during the short period. You will have to manage the situation on the board.

Regards,
Anand Selvaraj.