switched to two wiringPiI2CRead 8 bit reads instead of 16 bit read

pull/18/head
alanbjohnston 7 years ago committed by GitHub
parent c23c37ac21
commit 7d06c94372
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GPG Key ID: 4AEE18F83AFDEB23

@ -110,7 +110,9 @@ struct SensorData read_sensor_data(struct SensorConfig sensor) {
wiringPiI2CWriteReg16(sensor.fd, INA219_REG_CALIBRATION, sensor.calValue);
wiringPiI2CWriteReg16(sensor.fd, INA219_REG_CONFIG, sensor.config);
wiringPiI2CWriteReg16(sensor.fd, INA219_REG_CALIBRATION, sensor.calValue);
data.current = (float)((int16_t)wiringPiI2CReadReg16(sensor.fd, INA219_REG_CURRENT)) / (float)sensor.currentDivider;
// data.current = (float)((int16_t)wiringPiI2CReadReg16(sensor.fd, INA219_REG_CURRENT)) / (float)sensor.currentDivider;
int16_t value = (uint16_t)((wiringPiI2CRead(sensor.fd) << 8 ) | wiringPiI2CRead (sensor.fd));
data.current = (float)value / (float)sensor.currentDivider;;
uint16_t value = (uint16_t)wireReadRegister(sensor.fd, INA219_REG_BUSVOLTAGE);
data.voltage = ((double)(value >> 3) * 4) / 1000;
data.power = (float)((uint16_t)wiringPiI2CReadReg16(sensor.fd, INA219_REG_POWER)) * (float)sensor.powerMultiplier;

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