Hi, I’m been working with the XS1110 GNSS module recently and there’s one thing about it that confuses me quite a lot.
Despite being written in the documentation (in the AT Command Reference guide, more specifically) that the boot up message displayed at startup should be “+SWIXS1110,READY*20”, instead I get three different messages at startup which are:
“+PSWIDBG,INFO,1*48”, “$PSWITXT,START*29” and “+PSWIDBG,BOOT,0,0*4D”, while I’m yet to see the one mentioned in the documentation.
Furthermore the three ones I see are not mentioned anywhere in the documentation, so I’m a bit clueless as to what their purposes are.
My question then would be: What do these three messages I get at boot up mean and what can’t I see the expected one?
For further information I am communicating via UART, and the firmware on the module when inquired via “AT+GNSSVERS?” is “+GNSSVERS,SWI5605XS_FDLS.18933.09,OK*24”.
Cheers and thanks in advance for any help!
Hi @vitor.batista ,
Welcome you to our community!
I have seen the issue almost same as your case and it was fixed in the latest firmware, please upgrade to the latest firmware following the link below, then try again:
https://source.sierrawireless.com/resources/airprime/software/xs1110/xs1110-firmware/#sthash.QAKzcGWu.dpbs
Do the issue still happens in this case?
Thanks,
That fixed the problem for me at least, thanks!
Unfortunately, it’s not currently an option to update the firmware, as the devices are currently embedded into PCBs without direct access to UART. Furthermore, to complicate things, some of the devices are now printing a different boot message - +PSWIDBG,BOOT,0,1*4C, where most other are printing +PSWIDBG,BOOT,0,0*4D.
I don’t understand why these messages are not mentioned anywhere in the documentation, nor why they appear in the first place instead of the startup message mentioned in the documentation. Are there any other documents you can point me to that can perhaps shed light on what exactly these mysterious startup messages mean?