Closed ttorkar closed 5 years ago
Sorry, besides what in the app notes I'm really not sure.
Ok thanks, I'll let you know if I find anything out
Sorry to bump an old issue, but just wanted to point out that there are example commands in the GNSS app note to enable XTRA.
AT+SAPBR=3,1,"APN","hologram"
AT+SAPBR=1,1
AT+CNTPCID=1
AT+CNTP="pool.ntp.org",-28,1,2
AT+CNTP
AT+CNACT=1,"hologram"
AT+HTTPTOFS="http://xtrapath1.izatcloud.net/xtra3grc.bin","/customer/xtra3grc.bin"
AT+CGNSCPY
AT+CGNSXTRA=1
AT+CGNSCOLD
However, even after following the instructions, I get a URC +CGNSXTRA: 2
which according to the AT commands manual means XTRA file is not effective
. Unsure why.
Turns out, you need to have a very good GPS signal for the XTRA file to work. Once I went outside and had clear view of the entire sky it instantly worked.
Hi Tim,
I was wondering if you had any further information about Cold Start / Warm Start / Hot Start and how they operate? Is it simply a matter of
AT+CGNSHOT
or is there something more? Is everything handled by the SIM7000?Or does it require the XTRA file as per.
Thanks in Advance