Temp-warning disable proven not to silence the firmware's internal temp poll; corrected-error channel stays untrustworthy, register-docs ask is the remaining path (open-questions §5)

2026-08-13 11:03:47 -07:00
parent a3de66f746
commit d81594ffbf
3 changed files with 19 additions and 3 deletions
@@ -474,6 +474,13 @@ temperature-like values can leak into other commands' DATA1.
  temperature limit margin in °C (positive number). DATA3: Enable upper temperature warning —
  0 = Disable, 1 = Enable.

+**Field note (hardware-verified):** disabling the warning — SET 0x8032 `(0x007D, 5, 0, 0, 0)`
+and SET 0x8034 `(0xFFD8, 5, 0, 0, 0)`, DATA3 = 0, all five params explicit, both PASS — does
+not stop the firmware's own ~3.5 s internal CMD_GET_CURRENT_TEMP poll (README
+firmware-reliability notes); the warning machinery and the internal temperature poll are
+independent. GET 0x8033/0x8035 return DATA1–3 = 0 regardless of prior SET values, with
+DATA4/5 reading leftover scratch — DATA1-answer readbacks that cannot verify anything.
+
 ### §1.25.1.30 GET_WAP_MODE_FRAME_TYPE (0x8023)

 - **Description:** —