S32KのトピックS32K344 UART

S32K344 UART

Zsk — Mon, 10 Jul 2023 04:01:21 GMT

Hi All

UART with interrupt transceiver, now two MCU single-direction transceiver data with asynchronous no problem, at the same time transceiver will send and receive failure, what will be the reason？

thank you

Re: S32K344 UART

VaneB — Mon, 10 Jul 2023 19:04:57 GMT

Hi @Zsk

Please correct me if I understand wrong.

From what I understood, you have the two devices connected to each other and you are trying to send at the same time that you are receiving and vice versa, am I correct?

B.R.

VaneB

Re: S32K344 UART

Zsk — Tue, 11 Jul 2023 09:50:44 GMT

Yes ,and I found another problem :The host needs to send about 10 times before the slave can receive it.After the sending/receiving status is switched once, the data cannot be sent again.

Re: S32K344 UART

Zsk — Tue, 11 Jul 2023 10:55:10 GMT

Found the problem, the status was switched to busy after asynchronous sending, and did not switch back, thank you

Re: S32K344 UART

wangjiawei — Mon, 13 May 2024 02:33:44 GMT

I had the same problem, but I didn't solve it. Could you tell me exactly how you solved it, thank you very much

Re: S32K344 UART

Zsk — Thu, 16 May 2024 10:51:01 GMT

I have changed the judgment condition before sending and receiving in the driver, sending only looks at the sending state, receiving only looks at the receiving state. Problem solved