I am trying to send message to my server but fixed length is not working in mc60 , however this same command is working in ec200 without any issue.
mc60 MQTT application note added that fixed length is available. can anyone confirm is it firmware issue or what?
17:54:38.557 → AT+GMR17:54:38.605 → Revision: MC60CBR01A20
17:54:38.605 →
17:54:38.605 → OK
Hi,
In your version of the MC60 (MC60CBR01A20), the fixed-length .11 is not supported.
`AT+QMTPUB=0,1,1,0,"MYTOPIC",11` // That's why you're getting CME ERROR 3518.
`AT+QMTPUB=0,1,1,0,"MYTOPIC"` // Use this instead.
Remove the fixed-length parameter 11 and revert to the classic payload + Ctrl+Z method.
Or, upgrade your firmware to a more recent version (look for “fixed length publish support” in the release notes).