Kinetis MicrocontrollersのトピックRe: MKM34 Uart DMA Initialization

MKM34 Uart DMA Initialization

rahul_4 — Thu, 14 Mar 2024 04:09:53 GMT

Hi,

Can anyone share the example of using DMA on UART Transmit for MKM34Z256 by using bare metal drivers. DMA CRC example is given but when I am changing the code for UART, it is not transmitting any data.

Thanks,
Rahul

Re: MKM34 Uart DMA Initialization

xiangjun_rong — Thu, 21 Mar 2024 03:22:14 GMT

Hi,

I suppose that the DMA code has issue.

Pls refer to the DMA memory-memory example code and modify it, for example, replace the destination address with the CRC data register address. while check the CRC example code especially the CRC init code.

Hope it can help you

XiangJun Rong

Re: MKM34 Uart DMA Initialization

rahul_4 — Tue, 02 Apr 2024 17:56:39 GMT

Hi Rong,

I am using DMA for Uart Transmit but MCU is not transferring any data. Can you please check below code snippet.

Thanks,
Rahul