S32 SDK中的主题 LPUART Example code not working with eDMA

LPUART Example code not working with eDMA

axb — Tue, 25 Jul 2017 11:21:34 GMT

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?

Re: LPUART Example code not working with eDMA

jiri_kral — Thu, 27 Jul 2017 10:33:15 GMT

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

Re: LPUART Example code not working with eDMA

jiri_kral — Fri, 28 Jul 2017 12:07:51 GMT

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

Re: LPUART Example code not working with eDMA

axb — Fri, 28 Jul 2017 12:24:25 GMT

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

Re: LPUART Example code not working with eDMA

jiri_kral — Mon, 31 Jul 2017 11:54:33 GMT

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

Jiri

Re: LPUART Example code not working with eDMA

axb — Thu, 03 Aug 2017 09:17:04 GMT

Thanks

Re: LPUART Example code not working with eDMA

axb — Thu, 03 Aug 2017 09:18:35 GMT

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