S32KのトピックRe: S32k344 uses DMA to transmit uart error

S32k344 uses DMA to transmit uart error

yulong — Fri, 17 Jan 2025 06:35:43 GMT

Recently in the S32K344 board, using DMA mode to send UART, EB environment 28.0, S32DS: 3.5, MCAL: V2.0.1/AS4.4.0. When performing Mcl_Init(), there is no value in CHCFG[n], resulting in initialization failure. Can you help me find the reason? Looking forward to your reply

Re: S32k344 uses DMA to transmit uart error

danielmartynek — Fri, 17 Jan 2025 08:20:12 GMT

Hi @yulong,

The DMAMUX is configured in the RM driver.

Do you configure DMAMUX in RM configurator and do you initialize the RM driver in the code?

Thanks,

BR, Daniel

Re: S32k344 uses DMA to transmit uart error

yulong — Fri, 24 Jan 2025 09:51:09 GMT

Thanks for you help.I have alredy solved it!Refer to this link :https://blog.csdn.net/zhoujingCSDN/article/details/142730383