cal warning

openshwprojects · Jan 8, 2025 · f20b5e2 · f20b5e2
1 parent 5f53e20
commit f20b5e2
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/src/driver/drv_pwrCal.c b/src/driver/drv_pwrCal.c
@@ -30,6 +30,11 @@ static commandResult_t Calibrate(const char *cmd, const char *args, float raw,
                      CMD_GetResultString(CMD_RES_BAD_ARGUMENT));
         return CMD_RES_BAD_ARGUMENT;
     }
+#define VERY_SMALL_VAL 0.001f
+	if (raw > -VERY_SMALL_VAL && raw < VERY_SMALL_VAL) {
+		ADDLOG_ERROR(LOG_FEATURE_ENERGYMETER, "Calibration incorrect - connect load first.");
+	}
+
 
     *cal = (cal_type == PWR_CAL_MULTIPLY ? real / raw : raw / real);
     CFG_SetPowerMeasurementCalibrationFloat(cfg_index, *cal);