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Reduce foot print of cycle1 -> cycle2 dma size change for fast adcs.

Merged Reduce foot print of cycle1 -> cycle2 dma size change for fast adcs.
erik.vonreis/advligorts:nicer_dma_switch into master
Merged Erik von Reis requested to merge erik.vonreis/advligorts:nicer_dma_switch into master
  1. Jan 27, 2022
    • Erik von Reis's avatar
      Reduce foot print of cycle1 -> cycle2 dma size change for fast adcs. · 53e5b5cc
      Erik von Reis authored 
      Old code for changing DMA size from the ( possibly smaller ) first cycle
was too expensive in some sense, causing momentary channel hopping on the
ADC when run at 65k and time_shift=0.

The new code just changes the size value of an already existing DMA
module instead of totally recreating it.
      53e5b5cc