Outputs; Table 8 Meas_Sensor: Output Values - Infineon SP37 Function Manual

2.1.5

Outputs

Table 8 Meas_Sensor: Output values
Register/ Address
R7
*(SensorResult+0)
*(SensorResult+1)
*(SensorResult+2)
1) If the sensor measurement result is within the input range for which its accuracy is specified, then the ADC
underflow/overflow condition is due to a measurement failure and the measurement results are not valid. Otherwise, if the
sensor measurement result is outside of this input range, then the ADC underflow/overflow bits may be ignored.
ROM Library Function Guide
Type Name
unsigned char StatusByte
signed int Compensated
Pressure
Compensated
Acceleration
signed int Raw Pressure
Raw Acceleration
signed int Raw Temperature
Tire Pressure Monitoring Sensor
Description
0000.0000 : Success
B
xxxx.xxx1 : Underflow of ADC Result
B
xxxx.xx1x : Overflow of ADC Result
B
xxxx.x1xx : Sensor Fault Wire Bond Check
B
xxxx.1xxx : Sensor Fault Diagnosis Resistor (only
B
for acceleration measurement)
xxx1.xxxx : VMIN warning
B
If Input Bit SensorConfig.7[Sens_Type] == 1;
If Input Bit SensorConfig.6[RAW] == 0:
8000 = -2048.0 kPa (Only theoretical)
H
0000 = 0.0 kPa
H
7FFF = 2047.9375 kPa
H
( = 2048 kPa - 1 LSB where 1 LSB = 1/16 kPa)
If Input Bit SensorConfig.6[RAW] == 1:
8000 since no compensation is performed
H
If Input Bit SensorConfig.7[Sens_Type] == 0;
If Input Bit SensorConfig.6[RAW] == 0:
8000 = -2048.0 g
H
0000 = 0.0 g
H
7FFF = 2047.9375 g
H
( = 2048 g - 1 LSB where 1 LSB = 1/16 g)
If Input Bit SensorConfig.6[RAW] == 1:
8000 since no compensation is performed
H
10 Bit ADC Result Value:
0000.00xx.xxxx.xxxx
10 Bit ADC Result Value:
0000.00xx.xxxx.xxxx
If Input Bit SensorConfig.6[RAW] == 0:
16 Bit scaled signed ADC Result Value
If Input Bit SensorConfig.6[RAW] == 1:
8000 since no temperature measurement is
H
performed
26
SP37
ROM Library Functions
1)
1)
B
B
Revision 1.0, 2011-12-15