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TLE5014
GMR-Based Angle Sensor
Examples
In case the look-up table is used for sensor output linearization, the angle base (angle offset) has to be
corrected first by programming the angle base register 0x00A0. After defining the correction values for the
look-up table, the angle base shall not be changed as this will introduce additional angle error.
9.4
Temperature calculation from Short Serial Message
The temperature information which is transmitted with the short serial message is an 8-bit value (0... 255).
It has to be considered as a two-complement ranging from T[LSB] = -128 LSB ... +127 LSB.
To obtain the temperature value in °C the following calculation has to be performed:
Table 20
Examples for temperature calculation
Read-out 8-bit value [LSB]
251
252
254
0
1
127
128
255
9.5
Reading registers with SICI
The following example in
at register 0x02.
Table 21
Reading of angle value (AVAL register, 0x02)
Type
Command
write
0x06C1
wait until power-on of sensor is finished
read
0x8021
User's Manual
2 T LSB
T °C
[
]
----------------------------------------------- -
=
T [LSB]
(two-complement)
-5
-4
-2
0
1
127
-128
-1
Table 21
shows the commands which have to be executed to read the angle value
Data
0x4000
AVAL
⋅
[
]
+
34.54
1.3815
temperature [°C]
17.76
19.21
22.11
25.00
26.45
208.86
-160.30
23.55
Comment
Write command to address 0x6C
sensor will stay with SICI interface after power-on time
and not switch to preconfigured interface
SENT/SPC/PWM;
this first command has to be sent within the start-up
time of the sensor.
Reads angle value from register 0x02.
This value is updated with t
48
, which is approx. 25 µs
update
Rev. 1.0
2019-03-12
(9.9)
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