S32K312

MUXU — Fri, 07 Jul 2023 07:45:45 GMT

我现在在使用S32K312开发，在使用DMA时遇到一些问题：

DMA在正常传输数据，但当我修改DMA源地址数据时，传输到目的地址的数据依旧是原先的值。

但是我发现在我改变DMA源地址数据后手动调用sys_m7_cache_clean()后，传输到目的地址的数据是更新值。

我想知道是不是我的工程有什么地方配置需要调整。

I am currently developing with S32K312 and am having some problems with DMA:

DMA is transmitting data normally, but when I modify the DMA source address data, the data transferred to the destination address is still the original value.

But I found that after I manually called sys_m7_cache_clean() after changing the DMA source address data, the data transferred to the destination address was the updated value.

I would like to know if there is any configuration of my project that needs to be adjusted.

Re: S32K312

PetrS — Mon, 10 Jul 2023 14:14:22 GMT

Hi,

refer to https://community.nxp.com/t5/S32-SDK/S32K312/m-p/1684957#M3191

BR, Petr

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S32K312

Re: S32K312