Hi,
I’m using EG915U and i updated module’s firmware from EG915UEUABR02A05M08 to EG915UEUABR03A01M08 successfully. Then I realized that module started to send URC messages twice.
Here is my configuration:
"AT+QURCCFG=“urcport”, “uart1”
“AT+QCFG=“cmux/urcport”, 2”
“AT+CNMI=2,1,0,0,0”
When a SMS comes, module gives URC to CMUX as this:
V (300414) CMUX Received: 0x3fccfd5c f9 05 ef 21 7e ff 03 c0 21 0a 5d 00 08 27 64 e0 |…!~…!.]…'d.|
V (300414) CMUX Received: 0x3fccfd6c ae 58 a3 7e 6e f9 |.X.~n.|
D (300424) CMUX: Payload frame: dlci:01 type:ef payload:16 available:18
V (302924) CMUX Received: 0x3fccfd5c 0d 0a 2b 43 4d 54 49 3a 20 22 4d 45 22 2c 30 0d |…+CMTI: “ME”,0.|
V (302924) CMUX Received: 0x3fccfd6c 0a |.|
W (302934) CMUX: Restarting CMUX state machine (reason: 0)
V (302934) CMUX Received: 0x3fccfd5c f9 09 ef 23 0d 0a 2b 43 4d 54 49 3a 20 22 4d 45 |…#…+CMTI: “ME|
V (302944) CMUX Received: 0x3fccfd6c 22 2c 30 0d 0a 0a f9 |”,0…|
As you can see, module sends “+CMTI: “ME”,0” twice and first “+CMTI: “ME”,0” comes without lead or trail flag sequence octet which is 0xF9. I didn’t observe this on EG915UEUABR02A05M08 firmware.
Best regards.