Hi,
I’m using EC25-J module and connecting CPU with USB I/F.
CPU sends 1460byte TCP packet using “AT+QISEND=0,1460” command continuously.
In most cases, EC25-J responds ”SEND OK” or “SEND FAIL”, but randomly responds the below responses. Could you tell me how to inspect the module?
Hello, thanks for your question
Please check the current network situation and confirm whether there is a CFUN switching operation.
Generally, executing AT+CFUN=1 to switch ME to full function will produce the reply you mentioned.
Hi, thank you for your quick reply.
The CPU does’t send any “AT+CFUN” command, but EC25 replies those response.
Can I monitor what happened in the module using debug UART ports?
Hello, thanks for asking again
The module will also have such a response when restarting, which may be caused by the memory overflow caused by the continuous transmission of large packets. You can grab the debug port log and confirm whether the module is dumped.
I use STM32F microcomputer as CPU and there is no OS. Is there any AT command to get debug log without special tools? Or can I get the log via main or debug uart port?
Hello Yuki
We are sorry that we do not have such AT commands, you can only get the log through the debug uart port (not main uart port ) and send it to support@quectel.com.