User Guide

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LMU-3x40 Training Guide
Revision & Date
1.6 – 03/24/2021
Input-8
Input-9
Input-10
Input-11
Input-12
Input-13
Input-14
Pure Virt Ign
Pure Virt Ign
Pure Virt Ign
Input-15
Input-16
N/A
Motion Wake
Motion Wake
Input-17
Input-18
N/A
Power State Wake
Power State Wake
Input-19
Input-20
Input-21
Input-22
Input-23
N/A
Radio Active Wake
Radio Active Wake
Input-24
N/A
BLE Wake
BLE Wake
Input-25
N/A
VBUS Wake
VBUS Wake
Input-26
Input-27
N/A
Crank Detect Wake
Crank Detect Wake
Input-28
N/A
RTC Wake
RTC Wake
3-Axis Accelerometer + 3-Axis Gyroscope
The LMU-3040™ supports an internal 3 Axis Precision Accelerometer as one of its
discreet inputs. When the LMU is moved in any direction, the associated input will be in
the High state. If the LMU’s accelerometer does not detect motion, then the input will be
in the Low state. No external connections are required for this functionality to be
operational.
Accelerometer Gyroscope
Acquisition rate: >1600Hz Acquisition rate: >1600Hz
Sampling rate - output data rate: 100, 200, 400 Hz Sampling rate - output data rate: 100, 200, 400 Hz
Resolution: <= 0.01G Resolution: <= 0.01G
Full Scale: 15-24G Full Scale: 15-24G
6.2 LMU Firmware Updates (Delta Files)
The LMU firmware on an LMU-3040 or LMU-3240 is a Linux based image that utilizes the concept
of “Delta Images” while managing firmware updates.
A Delta Image is defined as an update file for a device that contains only that code that has
changed from one specific (known) version already deployed on the device to the new target
version. Thus, a delta image is unique, based off: the current firmware on the device AND the
desired target firmware.