mod: readSoc & more returning error_val on transmit error

library.json

@@ -20,7 +20,7 @@
       "maintainer": true
     }
   ],
-  "version": "1.0.1",
+  "version": "1.0.2",
   "frameworks": ["arduino"],
   "platforms": "*",
   "headers": "Arduino_MAX17332.h"

library.properties

@@ -1,5 +1,5 @@
 name=Arduino_MAX17332
-version=1.0.1
+version=1.0.2
 author=Arduino, Lucio Rossi, Giovanni Bruno
 maintainer=Arduino <info@arduino.cc>
 sentence=A library for driving MAX17332 BMS.

src/MAX17332.cpp

@@ -270,7 +270,7 @@ float MAX17332::readVCell()
     uint16_t v_int;
 
     if (!readRegisters(MAX17332_VCELLREP_REG, (uint8_t*) &v_int, sizeof(v_int))) {
-        return 0.0;
+        return ERROR_VAL;
     }
 
     return (float) v_int * VOLTAGE_LSB;
@@ -282,7 +282,7 @@ float MAX17332::readCurrent()
     uint16_t val;
 
     if (!readRegisters(MAX17332_CURRREP_REG, (uint8_t*) &val, sizeof(val))) {
-        return 0.0;
+        return ERROR_VAL;
     }
 
     int16_t curr = static_cast<int16_t>(val);
@@ -296,7 +296,7 @@ float MAX17332::readRSense()
     int value = readRegister(MAX17332_RSENSE_REG);
 
     if (!value) {
-        return 0.0;
+        return ERROR_VAL;
     }
 
     return (float) value * RSENSE_LSB;
@@ -308,7 +308,7 @@ float MAX17332::readTemp()
     uint16_t val;
 
     if (!readRegisters(MAX17332_TEMP_REG, (uint8_t*) &val, sizeof(val))) {
-        return 0.0;
+        return ERROR_VAL;
     }
 
     int16_t temp = static_cast<int16_t>(val);
@@ -322,7 +322,7 @@ float MAX17332::readSoc()
     uint16_t val;
 
     if (!readRegisters(MAX17332_REPSOC_REG, (uint8_t*) &val, sizeof(val))) {
-        return 0.0;
+        return ERROR_VAL;
     }
 
     int16_t soc = static_cast<int16_t>(val);

src/MAX17332.h

@@ -56,6 +56,7 @@
 #define RSENSE_DEFAULT              10e-3
 #define TEMP_LSB                    0.00390625      ///<  1/256°C
 #define PERC_LSB                    0.00390625      ///<  1/256%
+#define ERROR_VAL                   -999.0
 
 // COMMANDS
 #define COPY_NV_BLOCK_CMD           0xE904          ///< Copy shadow RAM to NVM