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Code Wanted: H3 DMA SPI / I2S (Mainline Kernel) Example

AnonymousPi
in Advanced users - Development

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Hi,

 

There have been a couple of posts about this over time, but I was wondeing if somebody could please provide concrete example / sample code that uses DMA to TX out the GPIO pin(s)?


I want to be able to TX outwards only from my Allwinner H3 device (Orange PI PC) to 16 pins in parallel (so 16 bit DMA in parallel) from a chunk of memory in RAM.

 

Happy with a basic example if somebody has which just blasts out one GPIO pin even.

 

 

 

 

 

 

 

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