AM623: Setting uart-pins hi-z

Z Graham

Part Number: AM623

Tool/software:

OS: Yocto 10.x SDK

If I need to set UART output pins to hi-z momentarily, is my only option to directly write to the corresponding PADCONFIG register?

6 months ago

+1 Bin Liu 6 months ago

TI__Guru**** 170071 points

Hi,

Z Graham said:
is my only option to directly write to the corresponding PADCONFIG register?

Yes.

0 Z Graham 6 months ago in reply to Bin Liu

Prodigy 122 points

Anything I should consider when bringing the pins back to uart mode? Does the driver need to probe again?

0 Bin Liu 6 months ago in reply to Z Graham

TI__Guru**** 170071 points

Though this use case is not typical and not validated in the SDK, I don't think the driver needs to probe again, the UART hardware module is independent from the pin pads.

0 Z Graham 6 months ago in reply to Bin Liu

Prodigy 122 points

Thanks Bin. I'll have someone do some testing and we'll report back if there's any issues.

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AM623: Setting uart-pins hi-z