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fix(current sense): compare current magnitudes, not signed values - #575

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stijncarelsbergh wants to merge 1 commit into
simplefoc:devfrom
stijncarelsbergh:fix/cs-hybrid-mag
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stijncarelsbergh wants to merge 1 commit into
simplefoc:devfrom
stijncarelsbergh:fix/cs-hybrid-mag

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fix(current sense): compare current magnitudes, not signed values

Two flaws in the same alignment step:

  • the A-C branch compared fabs(c.a) - fabs(c.c) against a threshold without
    taking the absolute value of the difference, so a channel that reads higher
    than the driven phase passes the check instead of raising the error;
  • the B-C branch compared c.a with c.c (copy-paste from the branch above) while
    the message and the comment refer to phase B.

(The same defect in the phase-B section no longer exists on dev, so it is not
part of this change.)


Split out of #571 at your request: one fix per PR, against dev. The branch contains
nothing else, so it can be reviewed, amended or dropped on its own.

The CI board matrix runs automatically; I did not run any hardware test, so the behavioural
claims are from reading the code plus the compiler. Happy to adjust the wording, split it
differently or drop it - no attachment to this one.

Two flaws in the same alignment step:

- the A-C branch compared `fabs(c.a) - fabs(c.c)` against a threshold without
  taking the absolute value of the difference, so a channel that reads *higher*
  than the driven phase passes the check instead of raising the error;
- the B-C branch compared c.a with c.c (copy-paste from the branch above) while
  the message and the comment refer to phase B.

(The same defect in the phase-B section no longer exists on dev, so it is not
part of this change.)
Copilot AI balanced review requested due to automatic review settings October 7, 2026 22:04

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