9. DMA Manager

9.1. Overview

DMA Manager example demonstrates the following features in DMA Manager component. - Request/release DMA resource

  • Setup DMA config

  • Enable DMA interrupt for target DMA resource

  • Install DMA callback for target DMA resource

9.2. Tips

The DMA Manager handles the interrupt inside the component, users must not declare ISR in the application

9.3. Board Setting

No special settings

9.4. Running the example

When the project runs correctly, and the serial port terminal will output the following information. The total number of resource is decided by SOC DMA maximum channel count.

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    This example demonstrates the following features with DMA manager

      1. Request/release DMA resource
      2. Setup DMA config
      3. Enable DMA interrupt
      4. DMA callback installation


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DMA resource 0 completed transfer, success
DMA resource 1 completed transfer, success
DMA resource 2 completed transfer, success
DMA resource 3 completed transfer, success
DMA resource 4 completed transfer, success
DMA resource 5 completed transfer, success
DMA resource 6 completed transfer, success
DMA resource 7 completed transfer, success
DMA resource 8 completed transfer, success
DMA resource 9 completed transfer, success
DMA resource 10 completed transfer, success
DMA resource 11 completed transfer, success
DMA resource 12 completed transfer, success
DMA resource 13 completed transfer, success
DMA resource 14 completed transfer, success
DMA resource 15 completed transfer, success
DMA resource 0 completed transfer, success
DMA resource 1 completed transfer, success
DMA resource 2 completed transfer, success
DMA resource 3 completed transfer, success
DMA resource 4 completed transfer, success
DMA resource 5 completed transfer, success
DMA resource 6 completed transfer, success
DMA resource 7 completed transfer, success
DMA resource 8 completed transfer, success
DMA resource 9 completed transfer, success
DMA resource 10 completed transfer, success
DMA resource 11 completed transfer, success
DMA resource 12 completed transfer, success
DMA resource 13 completed transfer, success
DMA resource 14 completed transfer, success
DMA resource 15 completed transfer, success
DMA Manager test PASSED