04-24-2002 08:36 AM
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04-04-2006 11:16 AM
I also have experienced problems at baud rates above 9600. I have a communications VI that works fine at 9600 or below, but when I change the baud rate value to anything above 9600 I get an error when labview tries to initialize the serial port. I seem to remember reading something earlier about 9600 being a limitation of the labview serial drivers, (not a limitation of the hardware). Has anyone out there really successfully used labview to communicate with a device at baud rates higher than 9600? Thank you.
04-05-2006 10:15 AM
04-05-2006 10:41 AM
06-11-2006 10:22 AM
I was able to get the serial communications running at 57,600 baud using a real PDA. The error I previously got when initializing the port was -1073807343. I traced this to the WCESCOMM.EXE process. (I develop on the PC and then export to the PDA). This process is used with ActiveSync which is usually running in a PDA developement environment. If this process is active or sleeping, it may tie up the port and cause serial communications to fail. The fix is to kill this process when trying to use Labview to access the Serial Port. It will restart when you attempt to connect the PDA, so it doesn't hurt anything, but Labview will not function correctly out the serial port if it is running.