← index #18551PR #7670
Related · high · value 0.629
QUERY · ISSUE

docs: RP2 DMA some defaults missing/incorrect

openby sfe-SparkFroopened 2025-12-11updated 2026-02-09
docs

Documentation URL

https://docs.micropython.org/en/latest/library/rp2.DMA.html#rp2.DMA.pack_ctrl

Description

The following keys have an incorrect default specified:

  • bswap (docs claim it's True, but it's actually False)

The following keys do not have defaults specified:

  • ring_size (should be 0)
  • ring_sel (should be False)
  • treq_sel (should be 63 or 0x3f)
    • Would be good to add a note explaining this, since it's not listed in the DREQ table in the datasheet.
  • write_err (should be False)
  • read_err (should be False)

Code of Conduct

Yes, I agree

CANDIDATE · PULL REQUEST

docs: Add documentation for rp2 DMA support.

mergedby nickovsopened 2021-08-15updated 2024-03-19
docs

This PR provides documentation for the rp2.DMA support in PR #7641 and the associated additions to rp2.PIO in #7650.

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