> -----Original Message----- > From: Rajesh Vattem > Sent: Monday, July 25, 2005 9:19 PM > > > Hi Robert, > If you open a hyper terminal and see the baud rate supported > you can see that 921600 is a supported value. If I use a USB > to serial converter to support such speed, is there any perl > module which I can use? Thanks for your time, Regards, Rajesh
Hi Rajesh, yes you're right: 921600 sure is supported by hyperterminal on WinXP. i only use serial communication on Win98 machines at work, and i dont remember ever seeing it that high. anyhow, im still pretty sure the Win32API perl module only supports 128K maximum. I see there is a Device::USB module on CPAN, but it appears to be very recent and the only review available says it failed installation. whats more, it appears to be dependent on a certain "libusb" package which is still in development *and* Linux-specific. my only experience with USB/Serial converters has been one of frustration, but admittedly i never really worked with it much. so... I think you will have a difficult time, but maybe it is possible. The only thing i can say for certain is that "I Really Have No Idea." Sorry :-( I am posting this back the the Win32-Users distribution list, because I hope that maybe someone else will have more experience in this area, and they can help you. Good luck to you, I know how frustrating these things can be. --robert > > -----Original Message----- > From: robert > Sent: Tuesday, July 26, 2005 7:53 AM > > > -----Original Message----- > > From: Rajesh Vattem > > Sent: Monday, July 25, 2005 7:21 AM > > > > Hi, > > I am using Win32 serial port APIs in Active perl 5.8.2 for > > opening COM port. I am getting this error when I open the COM > > port with a different baud rate > > (eg: 921600). It works fine with baud rate 115200. > > > 921600 ?? is that the speed you are trying to communicate serially at? > Is such a serial port speed even possible, or is that a typo? > > at any rate, Win32::SerialPort is limited by its Win32API::CommPort > dependency, which I am almost certain has a maximum speed of 128K > > I've never seen Win32::SerialPort run at anything faster than > 115200. > and I've had some problems with serial modems over 56K > > these modules were stablized about six years ago, and I dont think > theyve been updated since. Serial-Port communication is kind of > "trailing-edge" technology these days. > > --robert > _______________________________________________ Perl-Win32-Users mailing list Perl-Win32-Users@listserv.ActiveState.com To unsubscribe: http://listserv.ActiveState.com/mailman/mysubs
