AM62A7-Q1: Am62a uart0 -> uart1

Kim TaeJung

Part Number: AM62A7-Q1

Tool/software:

Can I use UART1 instead of UART0 during DFU?

I was able to perform a DFU update with uart1 by referring to the forum. Is there any problem if I use it with uart1?

0 Bin Liu over 1 year ago

Hi Kim,

DFU uses USB0 interface, it has nothing to do with UART.

Do you mean using UART1 as U-Boot console while using DFU?

0 Kim TaeJung over 1 year ago in reply to Bin Liu

Hi,

Yes right

0 Bin Liu over 1 year ago in reply to Kim TaeJung

I am routing your query to our U-Boot expert for comments.

0 Aparna Patra over 1 year ago

Hi,

main_uart1 is reserved for TIFS logs:

Regards,
Aparna

0 Kim TaeJung over 1 year ago in reply to Aparna Patra

Hi, Patra

if just outputting TIFS logs, wouldn't it be okay to use u-boot console main_uart1?

Regards,

Kim

+1 Aparna Patra over 1 year ago in reply to Kim TaeJung

Hi Kim,

Yes this should be possible. I have not tried this out yet but you can refer to the device tree changes required to enable main_uart1 as well as add its alias in the chosen section of the dt file, as mentioned here: https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1319645/am6421-main-uart1-unresponsive-r5-spl

Regards,
Aparna

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