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Observer rgallic_incjet
Observer
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Registered: ‎03-21-2017

AXI DMA Scatter-Gather failures

Has anybody managed to get the scatter-gather mode to work with AXI DMA?

Calls to dma_map_sg() crash, NULL pointer detected.

 

I'm guessing it's a problem with the scatter list I'm sending.

 

Does anyone have some working code I may reference?

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Scholar hbucher
Scholar
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Registered: ‎03-22-2016

Re: AXI DMA Scatter-Gather failures

@rgallic_incjet

You can refer to the example in the SDK

In the picture below I have a screenshot for the GPIO component but you will find one for the AXI DMA scatter gather as well under system.mss in your BSP project.

 

 

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