BMS: force bench pack voltage to 60V under ADBMS master override

With no cell monitor attached the snapshot total voltage stays 0 and the
precharge completion gate (IVT >= 90% of pack, pack > 0) can never pass,
so bench precharge always timed out to FAULT_BMS. With
FEB_BMS_DISABLE_ADBMS_CHECKS=1 both pack-voltage getters now return
FEB_BMS_BENCH_PACK_VOLTAGE_V (default 60.0f, overridable) so precharge
completes once the IVT reads >= 54V from the bench supply. Per-cell
readings stay real; boot warning announces the forced value. IVT
freshness, the 10s precharge timeout, and all other gates unchanged.

Author: ZacharyBer

BMS/Core/User/Inc/FEB_Const.h

@@ -184,7 +184,9 @@
 // three enforcement overrides above (temp + primary/secondary voltage) and
 // additionally bypasses the cell-monitor data-staleness fault in
 // FEB_SM evaluate_faults() — the one check the per-domain macros don't cover.
-// Readings and diagnostics remain visible; only enforcement is suppressed.
+// Also forces the reported pack total voltage to FEB_BMS_BENCH_PACK_VOLTAGE_V
+// so precharge can complete against a low-voltage bench supply. Per-cell
+// readings and diagnostics remain visible; only enforcement is suppressed.
 // Logs warnings at boot while enabled. NEVER enable with a real pack.
 #ifndef FEB_BMS_DISABLE_ADBMS_CHECKS
 #define FEB_BMS_DISABLE_ADBMS_CHECKS 0
@@ -199,6 +201,15 @@
 #define FEB_BMS_DISABLE_SECONDARY_VOLT_CHECKS 1
 #endif
 
+// With the master override enabled, both pack-voltage getters return this
+// value (volts) instead of the (absent) cell-monitor sum, so the precharge
+// completion gate (IVT >= 90% of pack) can pass with a bench supply: at the
+// default 60 V the IVT must read >= 54 V. Has no effect when the master
+// override is 0.
+#ifndef FEB_BMS_BENCH_PACK_VOLTAGE_V
+#define FEB_BMS_BENCH_PACK_VOLTAGE_V 60.0f
+#endif
+
 // ********************************** Accumulator Structure **********************
 
 typedef struct

BMS/Core/User/Src/FEB_ADBMS6830B.c

@@ -673,10 +673,15 @@ void FEB_ADBMS_Temperature_Process()
 
 float FEB_ADBMS_GET_ACC_Total_Voltage()
 {
+#if FEB_BMS_DISABLE_ADBMS_CHECKS
+  /* Bench: no cell monitor — report the forced pack voltage (see FEB_Const.h) */
+  return FEB_BMS_BENCH_PACK_VOLTAGE_V;
+#else
   osMutexAcquire(ADBMSMutexHandle, osWaitForever);
   float voltage = FEB_ACC.total_voltage_V;
   osMutexRelease(ADBMSMutexHandle);
   return voltage;
+#endif
 }
 
 float FEB_ADBMS_GET_ACC_MIN_Voltage()
@@ -1001,7 +1006,12 @@ uint32_t FEB_ADBMS_Get_Last_Update_Tick(void)
 
 float FEB_ADBMS_Snapshot_Total_Voltage(void)
 {
+#if FEB_BMS_DISABLE_ADBMS_CHECKS
+  /* Bench: no cell monitor — report the forced pack voltage (see FEB_Const.h) */
+  return FEB_BMS_BENCH_PACK_VOLTAGE_V;
+#else
   return adbms_snap_total_V;
+#endif
 }
 
 float FEB_ADBMS_Snapshot_Max_Cell_Voltage(void)

BMS/Core/User/Src/FEB_Main.c

@@ -109,6 +109,7 @@ void FEB_Init(void)
   LOG_W(TAG_MAIN, "ALL ADBMS CHECKS DISABLED (FEB_BMS_DISABLE_ADBMS_CHECKS=1)");
   LOG_W(TAG_MAIN, "Bench mode: voltage/temp enforcement AND the cell-monitor");
   LOG_W(TAG_MAIN, "data-timeout fault are BYPASSED. Do NOT run a real pack.");
+  LOG_W(TAG_MAIN, "Pack voltage FORCED to %.1fV for bench precharge", (double)FEB_BMS_BENCH_PACK_VOLTAGE_V);
 #endif
 
 #if FEB_BMS_DISABLE_TEMP_CHECKS

BMS/VERSION

@@ -1 +1 @@
-1.7.12
+1.7.13

VERSION

@@ -1 +1 @@
-1.7.28
+1.7.29