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8.8 =dr
8.8.1 Description
This command sets the output data rate in Hz that will occur while operating in Normal Mode
and with the =MSYNC,IMU configuration. The output rate must be specified as one of the
permitted values between 1 and 5000 Hz. This configuration is saved in non-volatile memory
and recalled on reset/power-on. Not all data rates are usable at all baud rates. For instance,
selecting a data rate of 1000 Hz with a baud rate of 57600 would not work, because the full
output data packet cannot be transmitted in 1 ms at that baud rate. Therefore, care must be
taken when using non-default data rate and baud rate combinations, or the IMU will be
unreliable. See the baud rate (=BAUD) command and information in Section 9.
NOTE: If the currently selected filter type is either Chebyshev or Butterworth (i.e., not the Uniform Averager or a
customer-defined filter) then setting the data rate has the side effect of modifying the anti-aliasing filter
coefficients, so that the cutoff frequency is 1/2 of the data rate. That is, this will modify any “semi-custom” filter
defined by the =FILTTYPE command.
8.8.2 Usage
=DR,<1|5|10|25|50|100|250|500|750|1000|3600|5000>
The integer value for data rate is in Hz units and must be one of the acceptable values above.
8.8.3 Response
DR, <1|5|10|25|50|100|250|500|750|1000|3600|5000>
8.9 ?dr
8.9.1 Description
This command queries the binary output data rate in Hz that will occur while operating in
Normal Mode.
8.9.2 Usage
?DR
8.9.3 Response
DR,<1|5|10|25|50|100|250|500|750|1000|3600|5000>
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