LPUART Example code not working with eDMA

[axb]

Project is created from S32K144 EAR SDK Example Projects. But there is no communication with UART. The same code is working with Interrupts. I have changed lpuart_user_config_t lpuart1_InitConfig0. (.transferType = LPUART_USING_DMA,)

Am I missing any configuration?

[jiri_kral · Accepted solution]

Hi, 

to be able use  eDMA  data transfer mode - you also need init eDMA driver by adding this line in the main function:

EDMA_DRV_Init(&dmaController1_State, &dmaController1_InitConfig0);

front of UART init. 

Another suggestion from SDK team is to use latest RTM SDK version. Lot of bugs is fixed there. 

Jiri 

[axb]

Thanks. It worked. Could you let me know how do I update my current SDK?

[jiri_kral]

If you have installed all updates (main menu bar -> Help -> Check for updates) - you can create project from example with latest SDK version 

Jiri

[axb]

Could you also look into another question of mine https://community.nxp.com/thread/456468?sr=inbox ?

[axb]

Thanks

[jiri_kral]

Hello, 

I tried LPUART example - and for me even the interrupt mode is not working correctly. I can get welcome message, but no response to typing. I sent email to SDK team for solution and I'll respond when I get answer. 

Jiri