AM623: Does the AM6231 uart support 9bit mode? If not, how do I implement it?

user6481287

Intellectual 720 points

Part Number: AM623

Tool/software:

Does the AM6231 uart support 9bit mode? If not, how do I implement it?

1 month ago

0 Bin Liu 1 month ago

TI__Guru*** 143436 points

Hi,

The UART hardware supports 9bit mode, but I don't think the Linux kernel directly supports it.

0 user6481287 1 month ago in reply to Bin Liu

Intellectual 720 points

Can you give me some advice on how to make it happen?

0 Bin Liu 1 month ago in reply to user6481287

TI__Guru*** 143436 points

Do you use Linux or any other OS on AM62x?

0 user6481287 23 days ago in reply to Bin Liu

Intellectual 720 points

linux

0 Bin Liu 22 days ago in reply to user6481287

TI__Guru*** 143436 points

I don't know how to get it working in Linux. The kernel TTY framework only process 8-bits byte data, I am not sure how to make kernel understand 9-bit data.

Processors

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AM623: Does the AM6231 uart support 9bit mode? If not, how do I implement it?