TDA4AL-Q1: [MCU][R5F] uart print out garbled code

Daniel Hsieh

Intellectual 530 points

Part Number: TDA4AL-Q1

Tool/software:

Dear TI

My FreeRTOS application is runing at Yocto system with SPL mode.

I would like to create a task to print system info to uart.

However, the log seem only normal in few seconds.

The uart will become garbled code after 10 seconds.

If i Sciserver_tirtosDeinit , the uart log will become normally

Do you have any comment about this case?

Thank you verymuch

7 months ago

0 Neehar Sawant 7 months ago

TI__Mastermind 21390 points

Hi,

How are you printing to the UART console?

Are you using the UART driver from the PDK?

Thanks,

Neehar

0 Daniel Hsieh 7 months ago in reply to Neehar Sawant

Intellectual 530 points

Dear Neehar

I use the UART console with difference function of app example

App_printf/EnetAppUtils_print/App_ConsolePrintf.

It should be UART driver from the PDK

Thank you very much

0 Neehar Sawant 7 months ago in reply to Daniel Hsieh

TI__Mastermind 21390 points

Hi Daniel,

Have you tested using the standard UART_printf() within the PDK?

Thanks,

Neehar

0 Daniel Hsieh 7 months ago in reply to Neehar Sawant

Intellectual 530 points

Dear Neehar,

The result was the same

0 Neehar Sawant 7 months ago in reply to Daniel Hsieh

TI__Mastermind 21390 points

Hi Daniel,

Have you made any changes to the UART driver?

Could you provide the code where you are printing to the UART console?

Thanks,

Neehar

0 Daniel Hsieh 7 months ago in reply to Neehar Sawant

Intellectual 530 points

Dear Neehar

No, i do not do any change to the UART driver

Please check the attached

https://drive.google.com/file/d/1l8ZN-WXvhoQQhZ_NqUajTJOjN623M4dJ/view?usp=sharing

0 Neehar Sawant 7 months ago in reply to Daniel Hsieh

TI__Mastermind 21390 points

Hi Daniel,

Let me review your attached files and get back to you.

Thanks,

Neehar

0 Daniel Hsieh 7 months ago in reply to Neehar Sawant

Intellectual 530 points

Dear Neehar

Do you have any update?

Thank you very much

0 Neehar Sawant 7 months ago in reply to Daniel Hsieh

TI__Mastermind 21390 points

Hi Daniel,

I currently have low bandwidth and will need to look into this further. I will provide a response by the end of the week.

Thanks,

Neehar

0 Daniel Hsieh 7 months ago in reply to Neehar Sawant

Intellectual 530 points

Dear Neehar

Do you have any update?

Thank you very much

0 Neehar Sawant 6 months ago in reply to Daniel Hsieh

TI__Mastermind 21390 points

Hi Daniel,

Sorry for the delays, I have gotten time to look into this.

Daniel Hsieh said:
If i Sciserver_tirtosDeinit , the uart log will become normally

Do you reinitialize the sciserver afterwards as well?

I believe the issue has to do with the clocking and frequency issues/changes for the UART module. Do you make any changes to clock speeds?

Daniel Hsieh said:
My FreeRTOS application is runing at Yocto system with SPL mode.

How are you starting sciserver application and setting up clocking with SPL?

Thanks,

Neehar

0 Neehar Sawant 5 months ago in reply to Neehar Sawant

TI__Mastermind 21390 points

Hi Daniel,

Following up, is this issue still open?

Thanks,

Neehar

0 Neehar Sawant 4 months ago in reply to Neehar Sawant

TI__Mastermind 21390 points

Hi Daniel,

Closing the thread now...

Thanks,

Neehar

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TDA4AL-Q1: [MCU][R5F] uart print out garbled code