S32K31X DMA UART About Destination Bus Error

[Wan]

Hello NXP Engnieer

Environment: S32K310     RTD S32K3XX 4.0.0.202407242201  S32DS3.6.1   MCAL

I use the dma send the uart data, but not success, I find the "function  Static_Dma_Ip_GetLogicChannelError(LocHwVers, LocHwInst, LocHwCh, &LocChState->LogicChErrors)" value is= (1000 0000 0000  0000  0000  0000 0000 0001b) of  "Dma_Ip_ReturnType Dma_Ip_SetLog

Wan_3-1748848221797.png

icChannelTransferList(const uint32 LogicCh, const Dma_Ip_LogicChannelTransferListType List[], const uint32 ListDimension)  " in  "Dma_ipo.c"

Wan_1-1748848071643.png

Wan_2-1748848163959.png

Wan_0-1748847725225.png

I don,t know  how to slove it ! thanks

[PetrS]

Hi,

I think there is no need for transfer config, this would be done by driver.
You can refer to below thread showing LPUART DMA usage in HLD;
https://community.nxp.com/t5/S32K-Knowledge-Base/RTD400-MCAL-K312-UART-DMA/ta-p/1967467
Hope it helps.

BR, Petr

[Wan]

Hi  PetrS 

You  refer to below thread showing LPUART DMA usage in HLD  but not slove it.

https://community.nxp.com/t5/S32K-Knowledge-Base/RTD400-MCAL-K312-UART-DMA/ta-p/1967467

i through  change the DMA CHANNEL 0 1 to DMA Channel 2,3,  the software can send the data. but i don,t know why?  I Browse through the muxdam.xls  docoment never write any about DMA Limit.