TDA2HG: How to set the uart baud rate in the VSDK 03 05

terence xia

Part Number: TDA2HG

Hello，

We run linux on A15, and run BIOS on IPU. Now, we use the uart to communicate with external MCU. How to set the uart baud rate in the VSDK 03 05?

Thanks

Terence

over 5 years ago

0 David Huang over 5 years ago

TI__Intellectual 2440 points

Hi Terence,

Do you know if it's Linux or BIOS who is controlling the UART line?

Thanks,

David

0 terence xia over 5 years ago in reply to David Huang

Genius 3105 points

Hi David，

We set the IPU1（run BIOS）to control the UART line.

Thanks

Terence

0 David Huang over 5 years ago in reply to terence xia

TI__Intellectual 2440 points

Hi Terence,

You can refer to "vision_sdk/links_fw/src/rtos/utils_common/src/utils_uart.c" for setting baud rate in Vision SDK.

Thanks,

David

0 terence xia over 5 years ago in reply to David Huang

Genius 3105 points

Hi David,

Thank you very much.

On the other hand, can we set the value of Uart Baud Rate equal to 230400U directly? We do not find the 230400U to be defined in /ti_components/drivers/pdk_01_10_01_06/packages/ti/drv/bsp_lld/uart/bsp_uart.h.

Terence

0 terence xia over 5 years ago in reply to David Huang

Genius 3105 points

Hello,

Is there any suggestion for this issue?

Thanks

Terence

0 Prasad Konnur over 5 years ago in reply to terence xia

TI__Expert 6065 points

Hi Terence,

The driver supports only the listed baudrates.

Setting anything other than this will return an error.

Regards,
Prasad

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TDA2HG: How to set the uart baud rate in the VSDK 03 05