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queued, the reports will attempt to be sent in the order of triggering and only once the report is
acknowledged, the next report is attempted. This assures that reports are sent and received in
order
Ack
’ed mode assures that all reports are received, but adds overhead in time and data. Report
that is not acknowledged is sent again and eventually will be queued and sent again. The number
and frequency of re-tries is configurable via the Report Acknowledgement command.
3.6 Event Report Format
Reports are encoded as binary hex. It is also echoed to the debug UART in ASCII format.
3.7 Reset
There are a number of resets available on the device. Soft reset only restarts the software
running on the device. Hard reset is caused by resetting the whole basband module via a reset
pin. There is also an option to reset the GPS and the cellular sub-systems individually.
3.7.1 Context Preservation
When a self-initiated reset is performed due to Network Watchdog or by the Reset command
(modes 0, 1), the context of the system is being preserved and is restored after the reset. The
context includes all the periodic timers, the report queue, the odometer, etc. This allows reset
o f the unit as a troubleshooting or preventive measure without losing reports that are already in
the queue or are pending on running timers. Note that the reset process may cause 1-2min of
inaccuracy in the timers and should not be considered as very precise.
3.8 Startup Banner
After a reset a startup banner is printed through the UART only.