AM625: WKUP_UART

Mari Tsunoda

Expert 5726 points

Part Number: AM625

Hi Team,

What is the difference between WKUP_UART and regular UART?

Is it possible to use it normally after WKUP or is it blocked off?

Best regards,

Mari Tsunoda

over 2 years ago

0 Kallikuppa Sreenivasa over 2 years ago

TI__Guru**** 188709 points

Hello Mari Tsunoda

Thank you for the query.

Please refer below threads.

(24) AM625: use WKUP_UART0 as BT connect port - Processors forum - Processors - TI E2E support forums

(24) AM625: AM625 HW design issues - Processors forum - Processors - TI E2E support forums

Regards,

Sreenivasa

0 Mari Tsunoda over 2 years ago in reply to Kallikuppa Sreenivasa

TI__Expert 5726 points

Hi Sreenivasa,

Thanks for your quick response.

I see here that it is not controllable. What does this mean? From the threads you linked, it seemed possible to control from user side, but is it not?

Also, other than the UART port being always on even when MAIN domain is powered off in low-power mode, is there other differences with MAIN domain UART?

Best regards,

Mari Tsunoda

0 Kallikuppa Sreenivasa over 2 years ago in reply to Mari Tsunoda

TI__Guru**** 188709 points

Mari Tsunoda

Thank you for the inputs.

Also, other than the UART port being always on even when MAIN domain is powered off in low-power mode, is there other differences with MAIN domain UART?

If you are asking in terms of UART functionality, i guess they are similar.

(14) AM625: MAIN, MCU and WKUP Domain Communication Interfaces of AM6252 - Processors forum - Processors - TI E2E support forums

I guess the controllability in the table may be referring to enabling/disabling the UART since the wkup uart is the only one that is not controllable.

Regards,

Sreenivasa

0 Kallikuppa Sreenivasa over 2 years ago in reply to Kallikuppa Sreenivasa

TI__Guru**** 188709 points

Hello Mari Tsunoda

I checked internally on the controllable option

This is similar to what i mentioned - that is the UART cannot be controlled and is always ON. The UART pins if required can be configured for other functions.

Regards,

Sreenivasa