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[WIP] Duplicate #13186

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[WIP] Duplicate #13186

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Igor-Misic
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Switch from bare-metal driver to NuttX DMA driver.
The code looks cleaner and it is easier to port to other boards by using NuttX drivers.
DShot will use NuttX DMAMAP naming as other components.

The issue that needs to be fixed:
There is in some cases one extra bit in the DShot stream happening in an unknown manner. In the old version, it was fixed by resetting the timer before DMA was triggered. Figure out if this could be fixed in this version.

@dagar dagar self-requested a review October 14, 2019 18:44
@julianoes julianoes requested a review from bkueng October 15, 2019 06:44
@Igor-Misic Igor-Misic closed this Oct 19, 2019
@Igor-Misic Igor-Misic deleted the pr-dshot-nuttx-dma branch October 19, 2019 13:05
@Igor-Misic
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Duplicate of #13233

@Igor-Misic Igor-Misic changed the title [WIP] DShot: updated driver to use NuttX DMA functions [WIP] Duplicate Oct 19, 2019
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