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Procedure For Unlocking P800 Serial Port

0 replies · 2,781 views · Started 21 May 2004

Hello
I am trying to develop a software in C++ to communicate via the Serial Port (Using an RS232 Cable on the P800, the DRS-10) with the outside world (with a microcontroller or even with Windows Hyperterminal).
I Tried the AT*ESYN=3 command (which supposedly unlocks the Port) and this happens using Hyperterminal:
AT*ESYN=?
*ESYN: (2,3,8,9)

OK
Then issuing the command
AT*ESYN=3
Hyperterminal doesnt accept my at commands anymore, but my program still gives Error Leave = -14 which is port already open.
Note that I tried to open the port using Rcomm.Open....
also i used the Cell in Modem mode to issue the AT command.
So , in a nutshell I need a detailed procedure to Unlock and use the Serial Port on My P800