CODEWITHSUNDEEP
ssl-certificateat-commandmodemnb-iot
Dinesh Kumar K
Dinesh Kumar K

Reputation: 11

SIMCOM SIM7080G certificate conversion error on AT+CSSLCFG command

I am using sim7080g https://www.waveshare.com/wiki/SIM7080G_Cat-M/NB-IoT_HAT , I am experiencing this certificate conversion issue.

AT commands I am passing are as follows:

AT
AT+CMNB=2
AT+CNMP=38
AT+CBANDCFG=NB-IOT
AT+CPIN?
AT+CEREG?
AT+CGATT?
AT+CSQ?
AT+CNCFG=0,0
AT+CNACT=0,1


AT+CFSINIT
AT+CFSWFILE=3,"ca.crt",0,1188,10000
AT+CSSLCFG="CONVERT",2,"ca.crt"

everything returns OK, except the last AT command, it throws an operation not allowed CME error.

AT+CSSLCFG=convert,2,ca.crt
+CME ERROR: operation not allowed

Does anyone know a solution?

Upvotes: 1

Views: 533

Answers (1)

Adriano
Adriano

Reputation: 1892

A bit late, but to solve it you need to close the FileSystem with AT+CFSTERM before you can convert the certificate with AT+CSSLCFG.

I wrote a simple tester as webpage, where you can upload and test your certificate and other commands on this SimCom module:
https://github.com/Adrianotiger/simcomtester

Maybe this can help you.

Upvotes: 0

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