TDA2SX: uart output is abnormal

Daniel Cheng1

Part Number: TDA2SX

Hi Expert

When baud rate is 460.8K bps, uart output is abnormal.

When device temperature is high the output is abnormal, but device temperature is low the output is correct.

Could you give me some suggestion to debug this issue?

Thanks

Daniel

0 Keerthy J over 4 years ago

Hi Daniel,

What is the SDK you are using? Is it a custom application built on top of some SDK?

- Keerthy

0 Daniel Cheng1 over 4 years ago in reply to Keerthy J

Hi Keerthy

PROCESSOR_SDK_VISION_03_05_00_00

modify uart sample code on the TI CSL

Thanks

Daniel

0 Stanley Liu over 4 years ago in reply to Daniel Cheng1

Hi,

I don't think UART would behavior differently with temperature.

Unless the die temperature goes beyond 123C, the device would shut down and reboot.

Could you share the change where you modify the baud rate for 460.8K?

I don't think our UART driver by default supports 460.8K in SDK.

Do you see any problem with baud rate set at 115.2 kbps?

Regards,
Stanley

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