nicla-system: Use getFaultsRegister to query faults register.

Author: sebromero

libraries/Nicla_System/src/BQ25120A.cpp

@@ -15,6 +15,11 @@ uint8_t BQ25120A::getStatusRegister()
   return readByte(BQ25120A_ADDRESS, BQ25120A_STATUS);
 }
 
+uint8_t BQ25120A::getFaultsRegister()
+{
+  return readByte(BQ25120A_ADDRESS, BQ25120A_FAULTS);
+}
+
 void BQ25120A::writeByte(uint8_t address, uint8_t subAddress, uint8_t data)
 {
   setHighImpedanceModeEnabled(false);

libraries/Nicla_System/src/BQ25120A.h

@@ -26,6 +26,8 @@ class BQ25120A
   BQ25120A() {};
 
   uint8_t getStatusRegister();
+  uint8_t getFaultsRegister();
+
   void writeByte(uint8_t address, uint8_t subAddress, uint8_t data);
   uint8_t readByte(uint8_t address, uint8_t subAddress);
 

libraries/Nicla_System/src/Nicla_System.cpp

@@ -137,7 +137,7 @@ bool nicla::enableCharge(uint8_t mA, bool disableNtc)
 
 uint8_t nicla::getBatteryFaults() {
   // Skips the mask bits (4 LSBs)
-  return (_pmic.readByte(BQ25120A_ADDRESS, BQ25120A_FAULTS) >> 4) & 0b1111;
+  return (_pmic.getFaultsRegister() >> 4) & 0b1111;
 }
 
 void nicla::setBatteryNTCEnabled(bool enabled){
@@ -222,7 +222,7 @@ int8_t nicla::getBatteryPercentage(bool useLatchedValue) {
   Example: 0 11 111 00 -> 90% + 8% = 98 - 100% of VBATREG
   */
   constexpr uint8_t BAT_UVLO_FAULT = 0b00100000; // Battery Under-Voltage Lock-Out fault
-  uint8_t faults = _pmic.readByte(BQ25120A_ADDRESS, BQ25120A_FAULTS);
+  uint8_t faults = _pmic.getFaultsRegister();
   if(faults & BAT_UVLO_FAULT) return -1; // Battery is not connected or voltage is too low
 
   // Write 1 to VBMON_READ to trigger a new reading