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46fa2cfb46
Split common SPI stuff out of master driver; add slave driver; add workaround for DMA issue. This merge req mainly adds a slave device. In order to do this, the original master driver is refactored into common code shared by master and slave modes, and a slave driver is added. The other things added are: - Added a workaround for a 'feature' of the ESP32 silicon that can lock up the receive DMA channel in some situations. This can only be fixed by resetting *both* DMA channels. The workaround implemented makes sure that the reset only happens when both channels are idle - Got rid of the automatic choice between register- and DMA-based transfers. The master (and slave) code will now always go for a DMA transfer if a DMA channel is given, and always go for register-based transfers if no DMA channel is given. - Add in a bunch of fixes for outstanding Github issues. See merge request !659
Documentation Source Folder
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- Mirror: https://dl.espressif.com/doc/esp-idf/latest/