DMA UART IDLE

[li3]

Hi NXP,

I want to use DMA receive to get the data received by DMA after generating idle interrupt, please tell me to implement, thank you.

Regards,

Li 3

[dujunqiu]

according to Uart_Idle_S32K344_LLD_RTD400.mex, not config lpuart DMA enable?

[danielmartynek]

Hi @li3,

LPUART_UART_IP_EVENT_IDLE_STATE is implemented in LPUART_Ip RTD 4.0.0.

But there is bug that will be fixed in the next release.

Hot fix:

danielmartynek_0-1717157602638.png

danielmartynek_1-1717157634386.png

Attached example uses the IDLE callback.

BR, Daniel

[Wan]

the demo not use the dma ，but can recive data for idle。

The make me function while (1){ } slowly ,I use the demo function 。I don‘t  know why？