PROCESSOR-SDK-AM64X: UART enable tx fifo ignore The THR interrupt. by polling

Jun Tu

Tool/software:

Hi,

We are running am64x dev board without os. I have some questions about uart.

If we want to use fifo, looks like there is only 2 ways. either DMSS or interrupt. As for DMSS, I will ask in other forum.

Can we ignore the interrupt, or not register it to the interrupt handler. and using polling, while enabling the TX_TRIG_GRANU1?

Thanks

6 months ago

0 Tushar Thakur 6 months ago

TI__Mastermind 49508 points

Hi Jun

The assigned is expert is out of office today. Responses to this thread will be delayed. Thanks for your cooperation.

Regards,

Tushar

+1 Vaibhav Kumar 6 months ago

TI__Mastermind 45696 points

Hi,

Can you let me know which SDK you are working with and the version of it as well.

Regards,

Vaibhav

0 Jun Tu 6 months ago in reply to Vaibhav Kumar

Expert 1550 points

"If we want to use fifo, looks like there is only 2 ways. either DMSS or interrupt. "

What I expected, you should tell me,

no that is not correct, fifo is always there no matter it is polling dmss or interrupt mode. but you need to set fifo enable, look at TRM.

we are using this version of code. am64x_09_01_00_41

Thanks.

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PROCESSOR-SDK-AM64X: UART enable tx fifo ignore The THR interrupt. by polling