Jonathan, thanks for replying. I'll be more specific.
I have a digital storage scope connected to tx line and when I execute the SrmControl function the voltage level from the emulator are the following. SrmControl(srmCltStartBreak,0,valueLen) Before SrmControl signal is -17volts. During SrmControl function 0 volts for 50us -17 volts for 50us 0 volts for 250us -17 volts for 50us Back to -17 volts and stays there. I get the exact same voltages and timings with the srmCtlStopBreak command. I'd be happy to supply images of the signal if anybody has doubts. What the device I need to connect with requires is a sustained break level for 700ms. Please if anybody has a way around this pleas help. Regards, Cliff Jones - Narly Software "Jonathan Cox" <[EMAIL PROTECTED]> wrote in message news:84467@comm-dev-forum... > > Hi Clifford, > > The serial break functionality is a signal, not a character. > When SrmControl(srmCtlStartBreak, 0, valueLen) is called the signal is set > and when SrmControl(srmCtlStopBreak, 0, valueLen) is called the signal is > cleared. It is up to the receiving device to interpret this as a break > character. Typically a break signal being set for 250ms is sufficient for > most devices to detect. > > POSER 3.4 and 3.5 does indeed do this correctly - I have > tested this extensively using POSER and real devices because one of my > employers products uses this functionality. > > I suggest that you use a breakout box on the serial cable to set this in > effect - your receiving device could be the problem. > > Regards > Jonathan Cox > -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/
