S32KのトピックRe: Writing data from UART with DMA in a new Array

Writing data from UART with DMA in a new Array

12914A — Thu, 02 May 2024 08:12:31 GMT

Hi all,

I receive the data, but the problem is, that the CITER value from the ELINKNO register doesn't match with the value I got, when I write the registervalue in a variable.
Additionally the data in the recv_buf is not written from zero or the same field than in Msg.
I attached the DMA init and the code for the UART IRQ handler.

Please help me.

Sandra

Re: Writing data from UART with DMA in a new Array

Julián_AragónM — Mon, 06 May 2024 20:11:53 GMT

Hi @12914A,

Have you read the register's value by debugging?

Julin_AragnM_0-1715026234807.png

You can also test the example included with the example projects, which is based on the code in AN5413: S32K1xx Series Cookbook.

Julin_AragnM_1-1715026240510.png

Best regards,
Julián