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Original question:

TDA4VM: Can the SPI on the A72 core adopt DMA mode?

TDA4VM: How to enable DMA mode of the spi module on the linux system

wang liu
Prodigy 241 points
Part Number: TDA4VM


Hello，

      Currently, when using the SPI module, the CPU usage is relatively high, reaching 100% for a single core. How can we use the SPI DMA mode to reduce CPU usage