Rate-Sensor Scaling And Low-Pass Filter - Aceinna IMU383 Series User Manual

IMU383 Series User's Manual
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Table 15 Output Data Rate/Clock Configuration Register
Bits
[ 7:0 ]
The ODR enables the master to specify the output rate of data provided by the unit. Setting this
register directly affects the data-ready signal. The default ODR is 200 Hz; to change the ODR to
100 Hz, the master sends 0xB702.
4.8.3

Rate-Sensor Scaling and Low-Pass Filter

The rate-sensor scaling configuration register has address 0x39 and described in Table 16.
Note: these settings apply only to data output via the unit SPI port and do not affect the low-level
UART output port.
Table 16 Sensor Scaling/Digital Low-Pass Filter Register
Bits
[ 7:0 ]
The rate-sensor scaling selector adjusts the output scaling applied to the rate-sensor values
standard and extended data-packets. Additionally, this setting affects the limits that control the
sensor over-range bit in the diagnostic status register (Table 11); if the system undergoes motion
that exceeds this limit, the over-range bit is set. The default scaling is 125.0°/sec; to change the
scaling to 62.5°/sec, the master sends 0xB901.
The rate sensor dynamic range selection maps to a bit-weight scale factor as defined in Table 17.
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Limits will affect the signal output only if the system is capable of generating a signal of that level. For instance, for an IMU383ZA-
200, a 220 °/sec limit will apply however the 440 °/sec limit will not, as the sensor is incapable of outputting signals greater than 220
°/sec.
Doc# 7430-1398-01
(Base Address: 0x37 (55)), Read/Write
Description (Default: 0x0101)
System Output Data Rate
0x00 (0): Data output suppressed
0x01 (1): 200 Hz (default)
0x02 (2): 100 Hz
0x03 (3): 50 Hz
0x04 (4): 25 Hz
0x05 (5): 20 Hz
0x06 (6): 10 Hz
0x07 (7): 5 Hz
0x08 (8): 4 Hz
0x09 (9): 2 Hz
0x10 (10): 1 Hz
(Base Address: 0x39), Read/Write
Description (Default: 0x0206)
Rate-Sensor Scaling/Dynamic Range Selector
0x01 (1): +/-62.5°/sec
0x02 (2): +/-125.0°/sec (default)
0x04 (4): +/-250.0°/sec
0x08 (8): +/-500.0°/sec
0x10 (16): +/-1000.0°/sec
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