Uart issue in Am62P

Hi,

We are working with the Critical Link AM62P and AM62a SoM and have installed Debian 13 on am62P the system. We are currently using UART5 for communication, and we are facing an issue specific to the AM62P module.

Initially, we tested UART5 on an AM62x SoM (AM62A variant), and communication worked as expected. However, when running the same test on the AM62P module, UART communication fails consistently.

We performed a UART loopback test on the AM62P board, and the results were correct. But when running our application-level UART code, we continuously receive frame errors.

Regards,
Rajkumar.

Replies (6)

RE: Uart issue in Am62P - Added by Michael Williamson 4 months ago

Hi Rajkumar,

Is the only difference between the AM62P working and not the use of the application code vs. the loopback code?

Are you testing with the same data / BAUD rate in loopback vs. application? Same hardware configuration?

Can you provide any test case that we could use to reproduce the problem here?

Thanks,
Mike

RE: Uart issue in Am62P - Added by Jonathan Cormier 4 months ago

Hi Rajkumar,

Just following up

RE: Uart issue in Am62P - Added by Rajkumar Dumala 6 days ago

Hi Jonathan,

I was on a long vacation until recently. The issue has now been fixed.

Best regards,
Rajkumar.

RE: Uart issue in Am62P - Added by Jonathan Cormier 5 days ago

Thanks for the update. Would you mind sharing what the solution was?

RE: Uart issue in Am62P - Added by Rajkumar Dumala 4 days ago

Hi Jonathan,

The issue was in the code. We have a function that returns an int, but the application was crashing within that function when running on the AM62P with Debian OS. However, it works fine on the AM62A BSP.

I suspect the reason could be differences in compiler versions between the two operating systems.

Regards,
Rajkumar

RE: Uart issue in Am62P - Added by Jonathan Cormier 4 days ago

Thanks for the update

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