Hey guys, I know it is bad to ask after just a day of trying to implement the multiplexer protocol, but time pushes me to do it.
I have a very basic problem: after sending AT+CMUX=0 I have 3 seconds to communicate and the modem stops responding at all. During these 3 seconds I can freely send SABM frames to open the control channel and 2 other channels, communicate with AT commands, all works, but when the 3 seconds are over… thats all. Like a demo version
What I do is use the SABM to open the channels, then start sending UIH frames on the channel 1, nothing else. Is there a magic thing I’m missing?