I HAVE TROUBLES WHEN I TRY TO COMMUNICATE WITH GM862, ONLY
WITH 115200,8,N,1,HARDWARE FLOW CONTROL.
I AM USING HYPERTERMINAL, IF I WORK WHITHOUT HARDWARE FLOW
CONTROL , I CAN CONNECT WITH GM862.
PLEASE, IF SOME ONE CAN HELP ME .
the solution was to configure hyperterminal 115200,8,n,1 without hardware flow control, and it is the same to send AT commands,and
DTR needs to set low( 0 volts)