DMA Support in Ambiq Apollo3 and Zephyr: Design Choice or Limitation #83869
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AlessandroLuo
AlienSarlak
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I have a question regarding the Ambiq Apollo3. I couldn't find a DMA driver, even though the SoC itself supports DMA. Additionally, it seems that none of the drivers, such as serial or ADC, use DMA. Is this by design, or does Zephyr have some limitations? |
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Answered by
AlessandroLuo
Feb 13, 2025
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@AlienSarlak DMA is not a common block for apollo mcu, each module has its own DMA respectively, that's why there's no separate DMA driver. By far we have not added DMA support for the ADC driver, but you can find DMA support if you take a look at the SPI/I2C/MSPI drivers. |
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@AlienSarlak DMA is not a common block for apollo mcu, each module has its own DMA respectively, that's why there's no separate DMA driver. By far we have not added DMA support for the ADC driver, but you can find DMA support if you take a look at the SPI/I2C/MSPI drivers.