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TeseoIII GNSS stops responding after continuous operation

Dror
Associate III

TeseoIII GNSS stops responding after continuous operation of more than a few hours.

No NMEA or PPS output. Only GNSS reset resumes operation. This happens on both DR and non DR parts.

Attached BIN firmware file.

Could you please check, maybe some settings are not correct and may cause it to stop working?

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2 REPLIES 2
Francesco Virlinzi
ST Employee

Hi Dror

Sorry for a so long delay due to Christmas holiday.

Could you give us some more info?

Was T3 running or in low power?

Which MEMS and how is it connected?

You report No PPS.

Could you check if PPS is still pulsing but with a longer period (> 60 seconds)?

Thanks

Dror
Associate III

Hi,

Happy new year.

As far as I know the T3 is not configured to low power.

What do you mean by "MEMS"? The only connection is to a USB-UART converter cable.

No PPS, meaning none.

What I suspect is that the CPU was stuck due to overload after some time as the fix rate is high and control port messages configured to output are too many.

Notice I attached the BIN file, if you could check the settings of CDB items and notice some not-recommended values.

I did notice, after some more analysis since writing this port, is if I reduce the number of NMEA reporting sentences it does not get stuck again.