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M16 Flasher (Embedded taximeter Boot Mode)
It is used to program embedded taximeter’s firmware (start / end firmware bootloader)
Temperature and Fan control
It is used to read the MCU internal temperature and to modify the Fan temperature threshold (45 °C
by default). Note that the Fan temperature threshold is used when the MCU digital output
OPOWFAN is 1 (default), otherwise Fan is off unless temperature becomes very high (65 °C or more).
The answer to command FR is message FS.
Setup Parameters Read / Write
It is used to sent / read setup parameters file to the AITP.
The answer to command ER is message ES.
”Stealth” Mode and ”Wake Up On Ring”
It is a special working mode, that start the MCU completely hiding the user interface, for monitoring
and surveillance. the 4GMCU can be waked up by a RING signal on a GSM call, and then start the
MCU in stealth mode or in normal mode
The answer to HR is HS
HH
byte 1 Stealth status, set immediately not on Ring wake up
HS
byte 1 Current Stealth Status:
0 = normal mode;
> 0 = MCU running in Stealth mode
