Make adc range scalable

source/Core/BSP/Magic/BSP.cpp

@@ -234,11 +234,12 @@ uint8_t  getTipResitanceX10() {
   return lastTipResistance;
 }
 void startMeasureTipResistance() {
-
   if (isTipDisconnected()) {
     return;
   }
-
+  if (lastTipReadinguV) {
+    return;
+  }
   // We want to calculate lastTipResistance
   // If tip is connected, and the tip is cold and the tip is not being heated
   // We can use the GPIO to inject a small current into the tip and measure this
@@ -277,10 +278,5 @@ void FinishMeasureTipResistance() {
   } else {
     newRes = 80;
   }
-  if (lastTipResistance != newRes) {
-#ifdef POW_PD
-    USBPowerDelivery::triggerRenegotiation();
-#endif
-  }
   lastTipResistance = newRes;
 }

source/Core/BSP/Magic/IRQ.cpp

@@ -174,4 +174,4 @@ uint16_t getADCHandleTemp(uint8_t sample) { return ADC_Temp.average(); }
 uint16_t getADCVin(uint8_t sample) { return ADC_Vin.average(); }
 
 // Returns either average or instant value. When sample is set the samples from the injected ADC are copied to the filter and then the raw reading is returned
-uint16_t getTipRawTemp(uint8_t sample) { return ADC_Tip.average() >> 1; }
+uint16_t getTipRawTemp(uint8_t sample) { return ADC_Tip.average(); }

source/Core/BSP/Magic/Setup.cpp

@@ -29,13 +29,17 @@ void hardware_init() {
   gpio_set_mode(TMP36_INPUT_Pin, GPIO_INPUT_MODE);
   gpio_set_mode(TIP_TEMP_Pin, GPIO_INPUT_MODE);
   gpio_set_mode(VIN_Pin, GPIO_INPUT_MODE);
-  gpio_set_mode(TIP_RESISTANCE_SENSE, GPIO_OUTPUT_PP_MODE);
+
+  gpio_set_mode(TIP_RESISTANCE_SENSE, GPIO_OUTPUT_MODE);
   gpio_write(TIP_RESISTANCE_SENSE, 0);
+
   MSG((char *)"Magic Starting\r\n");
   setup_timer_scheduler();
   setup_adc();
   setup_pwm();
   I2C_ClockSet(I2C0_ID, 400000); // Sets clock to around 375kHz
+  TIMER_SetCompValue(TIMER_CH0, TIMER_COMP_ID_1, 0);
+  PWM_Channel_Enable(PWM_Channel);
 }
 void setup_pwm(void) {
   // Setup PWM we use for driving the tip
@@ -56,8 +60,8 @@ void setup_pwm(void) {
 }
 
 const ADC_Chan_Type adc_tip_pos_chans[]
-    = {TIP_TEMP_ADC_CHANNEL, TIP_TEMP_ADC_CHANNEL, TIP_TEMP_ADC_CHANNEL, TIP_TEMP_ADC_CHANNEL, TMP36_ADC_CHANNEL, VIN_ADC_CHANNEL, TMP36_ADC_CHANNEL, VIN_ADC_CHANNEL};
-const ADC_Chan_Type adc_tip_neg_chans[] = {ADC_CHAN_GND, ADC_CHAN_GND, ADC_CHAN_GND, ADC_CHAN_GND, ADC_CHAN_GND, ADC_CHAN_GND, ADC_CHAN_GND, ADC_CHAN_GND};
+    = {VIN_ADC_CHANNEL, TIP_TEMP_ADC_CHANNEL, TIP_TEMP_ADC_CHANNEL, TIP_TEMP_ADC_CHANNEL, TIP_TEMP_ADC_CHANNEL, TMP36_ADC_CHANNEL, VIN_ADC_CHANNEL, TMP36_ADC_CHANNEL, VIN_ADC_CHANNEL};
+const ADC_Chan_Type adc_tip_neg_chans[] = {ADC_CHAN_GND, ADC_CHAN_GND, ADC_CHAN_GND, ADC_CHAN_GND, ADC_CHAN_GND, ADC_CHAN_GND, ADC_CHAN_GND, ADC_CHAN_GND, ADC_CHAN_GND};
 static_assert(sizeof(adc_tip_pos_chans) == sizeof(adc_tip_neg_chans));
 
 void setup_adc(void) {
@@ -71,9 +75,9 @@ void setup_adc(void) {
 
   adc_cfg.clkDiv         = ADC_CLK_DIV_4;
   adc_cfg.vref           = ADC_VREF_3P2V;
-  adc_cfg.resWidth       = ADC_DATA_WIDTH_12;
+  adc_cfg.resWidth       = ADC_DATA_WIDTH_16_WITH_128_AVERAGE;
   adc_cfg.inputMode      = ADC_INPUT_SINGLE_END;
-  adc_cfg.v18Sel         = ADC_V18_SEL_1P82V;
+  adc_cfg.v18Sel         = ADC_V18_SEL_1P72V;
   adc_cfg.v11Sel         = ADC_V11_SEL_1P1V;
   adc_cfg.gain1          = ADC_PGA_GAIN_NONE;
   adc_cfg.gain2          = ADC_PGA_GAIN_NONE;
@@ -89,7 +93,7 @@ void setup_adc(void) {
 
   ADC_Init(&adc_cfg);
   adc_fifo_cfg.dmaEn         = DISABLE;
-  adc_fifo_cfg.fifoThreshold = ADC_FIFO_THRESHOLD_8;
+  adc_fifo_cfg.fifoThreshold = ADC_FIFO_THRESHOLD_4;
   ADC_FIFO_Cfg(&adc_fifo_cfg);
   ADC_MIC_Bias_Disable();
   ADC_Tsen_Disable();

source/Core/BSP/Magic/configuration.h

@@ -68,6 +68,7 @@
 #define TEMP_CHANGE_LONG_STEP_MAX  90 // Temp change long step MAX value
 
 /* Power pulse for keeping power banks awake*/
+
 #define POWER_PULSE_INCREMENT    1
 #define POWER_PULSE_MAX          100 // x10 max watts
 #define POWER_PULSE_WAIT_MAX     9   // 9*2.5s = 22.5 seconds
@@ -114,7 +115,8 @@
 #endif
 
 #ifdef MODEL_Magic
-#define ADC_VDD_MV             3200                      // ADC max reading millivolts
+#define ADC_VDD_MV             3300                      // ADC max reading millivolts
+#define ADC_MAX_READING        42000                     // Maximum reading of the adc
 #define SOLDERING_TEMP         320                       // Default soldering temp is 320.0 °C
 #define VOLTAGE_DIV            600                       // 600 - Default divider from schematic
 #define CALIBRATION_OFFSET     800                       // 900 - Default adc offset in uV

source/Core/Drivers/TipThermoModel.cpp

@@ -36,7 +36,7 @@ uint32_t          TipThermoModel::convertTipRawADCTouV(uint16_t rawADC, bool ski
   uint32_t vddRailmVX10 = ADC_VDD_MV * 10; // The vreg is +-2%, but we have no higher accuracy available
   // 4096 * 8 readings for full scale
   // Convert the input ADC reading back into mV times 10 format.
-  uint32_t rawInputmVX10 = (rawADC * vddRailmVX10) / (4096 * 8);
+  uint32_t rawInputmVX10 = (rawADC * vddRailmVX10) / (ADC_MAX_READING);
 
   uint32_t valueuV = rawInputmVX10 * 100; // shift into uV
   // Now to divide this down by the gain
@@ -90,7 +90,7 @@ uint32_t TipThermoModel::getTipInF(bool sampleNow) {
 }
 
 uint32_t TipThermoModel::getTipMaxInC() {
-  uint32_t maximumTipTemp = TipThermoModel::convertTipRawADCToDegC(0x7FFF - (21 * 3)); // back off approx 5 deg c from ADC max
+  uint32_t maximumTipTemp = TipThermoModel::convertTipRawADCToDegC(ADC_MAX_READING - (21 * 3)); // back off approx 5 deg c from ADC max
   maximumTipTemp += getHandleTemperature(0) / 10;                                               // Add handle offset
   return maximumTipTemp - 1;
 }

source/Core/Inc/history.hpp

@@ -14,7 +14,7 @@
 template <class T, uint8_t SIZE> struct history {
   static const uint8_t size = SIZE;
   T                    buf[size];
-  int32_t              sum;
+  uint32_t             sum;
   uint8_t              loc;
 
   void update(T const val) {