topic Re: LPUART_DMA in S32K

LPUART_DMA

EMBEDDED585 — Mon, 27 Dec 2021 12:22:44 GMT

Hi ,

I am using DMA for the UART communication. I want to know about:

1. How to check the transmission or reception done or not ?

@tc and TDRE flags are always 1 during transmission.

2. How to handle the multiple bytes transmission ?

Thanks & Regards,

Embedded585

danielmartynek — Wed, 29 Dec 2021 12:46:33 GMT

How do you check the flags? I mean how do you know they always read 1.

You can enable the Transmission Complete Interrupt (TCIE = 1).

The DMA module should call transfer complete interrupt.

Please use the SDK or RTD drivers.

Regards,

Daniel