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-rw-r--r--fsm/adc.c58
-rw-r--r--fsm/adc.h10
2 files changed, 36 insertions, 32 deletions
diff --git a/fsm/adc.c b/fsm/adc.c
index fbe84a1..e0bacb6 100644
--- a/fsm/adc.c
+++ b/fsm/adc.c
@@ -209,8 +209,8 @@ static void ADC_voltage_handler() {
#endif
else measurement = adc_smooth[0];
- // convert raw ADC value to FSM voltage units: Volts * 40
- // 0 .. 200 = 0.0V .. 5.0V
+ // convert raw ADC value to FSM voltage units: Volts * 50
+ // 0 .. 250 = 0.0V .. 5.0V
voltage = voltage_raw2cooked(measurement)
+ (VOLTAGE_FUDGE_FACTOR << 1)
#ifdef USE_VOLTAGE_CORRECTION
@@ -392,46 +392,46 @@ static void ADC_temperature_handler() {
#ifdef USE_BATTCHECK
#ifdef BATTCHECK_4bars
PROGMEM const uint8_t voltage_blinks[] = {
- 4*30,
- 4*35,
- 4*38,
- 4*40,
- 4*42,
- 255,
+ 30*dV,
+ 35*dV,
+ 38*dV,
+ 40*dV,
+ 42*dV,
+ 255,
};
#endif
#ifdef BATTCHECK_6bars
PROGMEM const uint8_t voltage_blinks[] = {
- 4*30,
- 4*34,
- 4*36,
- 4*38,
- 4*40,
- 4*41,
- 4*43,
- 255,
+ 30*dV,
+ 34*dV,
+ 36*dV,
+ 38*dV,
+ 40*dV,
+ 41*dV,
+ 43*dV,
+ 255,
};
#endif
#ifdef BATTCHECK_8bars
PROGMEM const uint8_t voltage_blinks[] = {
- 4*30,
- 4*33,
- 4*35,
- 4*37,
- 4*38,
- 4*39,
- 4*40,
- 4*41,
- 4*42,
- 255,
+ 30*dV,
+ 33*dV,
+ 35*dV,
+ 37*dV,
+ 38*dV,
+ 39*dV,
+ 40*dV,
+ 41*dV,
+ 42*dV,
+ 255,
};
#endif
void battcheck() {
#ifdef BATTCHECK_VpT
- blink_num(voltage / 4);
+ blink_num(voltage / dV);
#ifdef USE_EXTRA_BATTCHECK_DIGIT
- // 0 1 2 3 --> 0 2 5 7, representing x.x00 x.x25 x.x50 x.x75
- blink_num(((voltage % 4)<<1) + ((voltage % 4)>>1));
+ // 0.02V precision, 0 1 2 3 4 remainder -> .00 .02 .04 .06 .08V
+ blink_num((voltage % dV) * (10/dV));
#endif
#else
uint8_t i;
diff --git a/fsm/adc.h b/fsm/adc.h
index 02e33f8..5dec6c5 100644
--- a/fsm/adc.h
+++ b/fsm/adc.h
@@ -4,6 +4,10 @@
#pragma once
+// voltage is 0.00V to 5.10V in 0.02V steps, from 0 to 255
+// so one deci-Volt is 5 steps
+#define dV 5
+
#if defined(USE_LVP) || defined(USE_THERMAL_REGULATION)
// use raw value instead of lowpassed value for the next N measurements
// (2 = 1 for voltage + 1 for temperature)
@@ -15,13 +19,13 @@ volatile uint8_t adc_reset = 2;
#ifndef VOLTAGE_WARNING_SECONDS
#define VOLTAGE_WARNING_SECONDS 5
#endif
-// low-battery threshold in volts * 10
+// low-battery threshold in volts * 50
#ifndef VOLTAGE_LOW
-#define VOLTAGE_LOW (4*29)
+#define VOLTAGE_LOW (29*dV)
#endif
// battery is low but not critical
#ifndef VOLTAGE_RED
-#define VOLTAGE_RED (4*33)
+#define VOLTAGE_RED (33*dV)
#endif
// MCU sees voltage 0.X volts lower than actual, add X/2 to readings
#ifndef VOLTAGE_FUDGE_FACTOR