UART uisng DMA on MQX

oscargarciaabad — Thu, 21 May 2015 13:28:33 GMT

HI all,

I want to use DMA for UART under MQX 4.1 (for kinetis devices). Is this feature already supported?

I saw there is the function _kuart_dma_install, but there are no references to it on MQX.

Regards,

Oscar.

Re: UART uisng DMA on MQX

soledad — Thu, 21 May 2015 20:00:25 GMT

Hello Oscar,

MQX doesn’t support UART and DMA. If you need these functionalities then you need to write your own driver.

The customer has the option to purchase Level 2 MQX support, either Standard or Premium.

http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=MQX_SUPPORT

I checked this and it is not documented. And also this driver is not called in bsp_init.c. for being installed. I loos like the files were added for future releases but the support is not official yet.

Sorry for any inconvenience that may cause.

Have a great day,
Sol

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Re: UART uisng DMA on MQX

oscargarciaabad — Mon, 01 Jun 2015 07:14:23 GMT

Hello Soledad,

Thanks for your answer,

regards,

Oscar

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UART uisng DMA on MQX

Re: UART uisng DMA on MQX

Re: UART uisng DMA on MQX