MSPM0L1306: UART Rx receives data with a high bit error rate problem

Bo Li1

Part Number: MSPM0L1306

Hi everyone,

we are currently working with the MSPM0L1306SRHBR.

There are currently no issues found on UART Tx.

Our UART program has a high bit error rate at the receiving end.Both UART0 and UART1 have been tested. The baud rate is 9600bps.

The routines in the SDK also have this problem.

What should I pay attention to when applying UART Rx?

Best regards and thank you very much for your response in advance

0 Johnson He over 1 year ago

Hi Bo,

What is the source clock for UART? 32768Hz?

If yes, maybe you can try this para:

But actually, there are still some error, about 0.25%, you also can try use MFCLK(4MHz) as the source clock to decrease this error, like this:

Thanks!

Best Regards

Johnson

0 Bo Li1 over 1 year ago in reply to Johnson He

Hi Johnson，

We have set MFCLK, and the Rx bit error rate issue for UART has been resolved.

Thnaks.

Libo

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