Does your external device use any of the control lines? - is this external device expecting a specific control line protocol or is just a plain old null modem connection Is the cable to this external device wired to properly communicate with the device? Does your external device work? - is plugged in or are the batteries charged
----- Original Message ----- From: "Dilek Özgü" <[EMAIL PROTECTED]> To: "Palm Developer Forum" <[EMAIL PROTECTED]> Sent: Wednesday, July 24, 2002 11:01 AM Subject: read serial port > > Hello > > I built an application that uses the serial port at > 300 baud to communicate with an external device. This program works fine > between > my Palm IIIxe and PC. > But it doens't work between my Palm IIIxe and external device. > > I use this function > baud = 300; > port=0; > > serSettings.baudRate = baud; > serSettings.flags = (serSettingsFlagBitsPerChar7 | > serSettingsFlagParityOnM | serSettingsFlagParityEvenM | > serSettingsFlagStopBits1); > serSettings.ctsTimeout = -1; > > SerSetSettings(serialRefNum, &serSettings); > .... > error = SerOpen(serialRefNum, port, baud); > .... > serNumBytesRx = SerReceive(serialRefNum, SerUARTBuffer, serNumBytes, -1, > &error); > ....... > > the Settings is true. because its run between Pc and Palm. > > does anyone know of the solution for this problem? > > Thanks, > > Dilek Özgü > > --- > Outgoing mail is certified Virus Free. > Checked by AVG anti-virus system (http://www.grisoft.com). > Version: 6.0.371 / Virus Database: 206 - Release Date: 13.06.2002 > > --- > Outgoing mail is certified Virus Free. > Checked by AVG anti-virus system (http://www.grisoft.com). > Version: 6.0.371 / Virus Database: 206 - Release Date: 13.06.2002 > > --- > Outgoing mail is certified Virus Free. > Checked by AVG anti-virus system (http://www.grisoft.com). > Version: 6.0.371 / Virus Database: 206 - Release Date: 13.06.2002 > > --- > Outgoing mail is certified Virus Free. > Checked by AVG anti-virus system (http://www.grisoft.com). > Version: 6.0.371 / Virus Database: 206 - Release Date: 13.06.2002 > > > > -- > For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/ > -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/
