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firmware: switch the DAC off too when switching off Vio #243

Merged
merged 1 commit into from
Feb 7, 2023
Merged

firmware: switch the DAC off too when switching off Vio #243

merged 1 commit into from
Feb 7, 2023

Commits on Feb 7, 2023

  1. firmware: switch the DAC off too when switching off Vio 

    Without this, the DAC still outputs it's control voltage even if Vio is off.
This goes through the feedback resistors to the output. I measured about
15 mV without this patch on a port that was previously enabled.
With this patch it properly goes down to zero.

While such a low voltage usually shouldn't be a problem, I consider it
unclean design, especially if it is so easy to fix.
    @electroniceel @whitequark
    electroniceel authored and whitequark committed Feb 7, 2023
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