Skudak/stm32-openinverter-teslacharger
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feat: expand 0x210 telemetry layout (state/udc/idc/uaux@5/soc) #2

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bastian merged 1 commits from feat/skudak-448-expanded-0x210-telemetry into main 2026-05-08 17:00:31 -04:00
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Author SHA1 Message Date
Bastian de Byl 3580123a39 feat: expand 0x210 telemetry layout (state/udc/idc/uaux@5/soc) for SKUDAK-448
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Details 
Replaces the single uaux-at-byte-0 broadcast (commit d209a47) with a
7-byte expanded telemetry frame. Bench capture on green car showed dual
0x210 frames colliding (DLC=8 simple + DLC=7 expanded) because Kyle's
flashed image had both AddSend sets active; standardising on the
expanded layout eliminates that ambiguity.

Byte layout:
  byte 0     state    (0=Off, 1=WaitStart, 2=Enable, 3=Activate, 4=Run, 5=Stop)
  bytes 1-2  udc      (V, gain=1)
  bytes 3-4  idc      (0.1A, gain=10)
  byte 5     uaux     (decivolts, gain=10) — 12V aux battery rail
  byte 6     soc      (%, gain=1)
  byte 7     reserved

Consumed by stm32-hal-vcu Core/Src/main.c CHARGER_CAN_ID_OI_OBC_AUX
handler. The state byte enables future VCU_IsCharging integration via
state == 4 (Run) without requiring a second CAN ID.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-05-08 16:48:48 -04:00