I have a curious problem. I have develop a bord for the modules Q26xx that apparently work very well.
Except for one detail: running a simple “AT + CPOF” (in ADL adl_atCmdCreate(…)) the module doesn’t go to alarm mode.
It’s work only when the RTS (serial_1) is physically grounded or the serial is connected to the computer.
I found nothing in manuals. Someone has an idea?
Excuse my English.