EG912U-GL Main UART baud rate change from USB

Technical Subjects
1

Hi,

I’m trying to change the main uart baud rate executing a command from the USB without luck.

AT+CBAUD=230400
OK
AT+CBAUD?
+CBAUD: 115200

OK

Is it possible to do it? Executing this command from the main uart does actually work but I need to be able to do it from the USB.

Modem version

AT+QGMR
EG912UGLAAR03A11M08_01.200.01.200

Thank you

2

pls run and try

AT+IPR=230400;&W

3

Using the USB AT Port gives an error

AT+IPR=230400
+CME ERROR: 3

From the main UART it works, but I need to do it through the USB

Thank you

4

The baud rate of the USB AT port is adaptive and does not require configuration.