Re: Parallel port programming on windows XP / 2000
Thank you... I finally got around to installing a proper newsreader, so that not every single one of my posts is a new thread. I know what I did wrong now. First, the line in the requirements about Java Communications (JavaComm) extension for Java/Jython seriously threw me off. Second, I somehow missed giveio_setup.exe. I did have giveio.sys, but I guess it wasn't installed or at least not properly. Anyway, now everything works... except of course the new thing that doesn't, but at least it has nothing to do with the parallel port itself. Interestingly enough, it's the 95/98 port that fails now, and the XP/2000 that works. The new problem may be something you're familiar with - the resolution of time.sleep(). On XP/2000 it's a millisecond, which is just about good enough; on 95/98 it's ten millisecond. I'll probably need to do something like run through a loop for a second or two, see how many iterations I can complete, then keep that as the basis for timing. Not really elegant, but I can't see a better way around it. -- http://mail.python.org/mailman/listinfo/python-list
Re: Parallel port programming on windows XP / 2000
I'm still stuck... my script is finished and works just fine on win98 using pyparallel, but I still haven't seen any sample code to do access the port in XP / 2000. If I don't make progress soon, I'll need to find a solution in another language, which I don't really want to do. --= Posted using GrabIt = --= Binary Usenet downloading made easy =- -= Get GrabIt for free from http://www.shemes.com/ =- -- http://mail.python.org/mailman/listinfo/python-list
Re: Parallel port programming on windows XP / 2000
I have written a python script with pyparallel pyDS1267 (W2K, pyparallel 0.1, giveio_setup.exe, pythoncard), with no problems on this OS. I have not tested with pyparallel 0.2 pyDS1267, pyUltraISR http://sourceforge.net/projects/gpib82357a/ [EMAIL PROTECTED] lyp champollion av pezet 46100 FIGEAC FRANCE Novice Experl a écrit : I'm still stuck... my script is finished and works just fine on win98 using pyparallel, but I still haven't seen any sample code to do access the port in XP / 2000. If I don't make progress soon, I'll need to find a solution in another language, which I don't really want to do. --= Posted using GrabIt = --= Binary Usenet downloading made easy =- -= Get GrabIt for free from http://www.shemes.com/ =- -- http://mail.python.org/mailman/listinfo/python-list
Re: Parallel port programming on windows XP/2000?
Novice Experl wrote: I'd like to write a simple application that interfaces with the parallel port, and changes the data on it according to keyboard input. I hope I can get it to run under windows xp and / or windows 2000. How can I do this? What do I need to know? It doesn't look like the standard library (the one under my pillow) has that feature. In addition, I've heard that with newer versions of windows don't let you communicate with the port directly, instead requiring interfacing with some driver? I came across this: http://pyserial.sourceforge.net/pyparallel.html but it seems to only be used for direct access (would it work with XP?), and hasn't been updated for a couple of years. In addition, it requires something called Java Communications (JavaComm) extension for Java/Jython, doesn't provide a link to it, and when I google it - google returns the page I came from! To add to the confusion, I hope I can provide a py2exe executable of my script instead of forcing a complete installation. --= Posted using GrabIt = --= Binary Usenet downloading made easy =- -= Get GrabIt for free from http://www.shemes.com/ =- -- http://mail.python.org/mailman/listinfo/python-list
Re: Parallel port programming on windows XP/2000?
Novice Experl wrote: I'd like to write a simple application that interfaces with the parallel port, and changes the data on it according to keyboard input. I hope I can get it to run under windows xp and / or windows 2000. How can I do this? What do I need to know? It doesn't look like the standard library (the one under my pillow) has that feature. In addition, I've heard that with newer versions of windows don't let you communicate with the port directly, instead requiring interfacing with some driver? I came across this: http://pyserial.sourceforge.net/pyparallel.html but it seems to only be used for direct access (would it work with XP?), and hasn't been updated for a couple of years. In addition, it requires something called Java Communications (JavaComm) extension for Java/Jython, doesn't provide a link to it, and when I google it - google returns the page I came from! To add to the confusion, I hope I can provide a py2exe executable of my script instead of forcing a complete installation. --= Posted using GrabIt = --= Binary Usenet downloading made easy =- -= Get GrabIt for free from http://www.shemes.com/ =- Here's teh link to jaavx.comm - http://java.sun.com/products/javacomm/index.jsp. The interface stuff, hmm I'm not quite sure what you are on about you access ports through the win32 API which is the 'driver' - you could probably bypass this and start playing around with assembly code but there's no point!! Cheers, Neil -- Neil Benn Senior Automation Engineer Cenix BioScience BioInnovations Zentrum Tatzberg 47 D-01307 Dresden Germany Tel : +49 (0)351 4173 154 e-mail : [EMAIL PROTECTED] Cenix Website : http://www.cenix-bioscience.com -- http://mail.python.org/mailman/listinfo/python-list
Re: Parallel port programming on windows XP/2000?
Novice Experl wrote: I'd like to write a simple application that interfaces with the parallel port Use pyParallel. You don't have to worry about the Java stuff unless you're using Jython. Just follow the instructions on the page (download, unarchive, python setup.py install). After that you have to understand how the parallel port works, but I'll assume you already do or can use the web to figure it out. -- Benji York -- http://mail.python.org/mailman/listinfo/python-list
Re: Parallel port programming on windows XP/2000?
Novice Experl ([EMAIL PROTECTED]) wrote: : I'd like to write a simple application that interfaces with the parallel port, and changes the data on it according to keyboard input. I hope I can get it to run under windows xp and / or windows 2000. : How can I do this? What do I need to know? It doesn't look like the standard library (the one under my pillow) has that feature. In addition, I've heard that with newer versions of windows don't let you communicate with the port directly, instead requiring interfacing with some driver? I always use DLPortIO, makes life almost as simple as GWBasic and a DOS box... You can either create a custom extension around this or use ctypes. Generally speaking a custom .dll is only needed if you are your lpt transactions are bidirectional, highly interleaved and high bandwidth. DLPortIO: http://www.driverlinx.com/DownLoad/DlPortIO.htm ctypes: http://starship.python.net/crew/theller/ctypes/ Note that DLPortIO is not a Python thing, it's a generic Windows .dll with C and VB examples, and needs installing, so it can't be packaged with py2exe. I'd guess this is the same for other parallel port accesing tools - I think you need admin privilidges on a Windows NT/2K/XP box to install DLPortIO, but not to use it. If you decide this is the best route for you and find yourself stuck, drop me an email for some example code. --- cds : I came across this: : http://pyserial.sourceforge.net/pyparallel.html : but it seems to only be used for direct access (would it work with XP?), and hasn't been updated for a couple of years. In addition, it requires something called Java Communications (JavaComm) extension for Java/Jython, doesn't provide a link to it, and when I google it - google returns the page I came from! : To add to the confusion, I hope I can provide a py2exe executable of my script instead of forcing a complete installation. : --= Posted using GrabIt = : --= Binary Usenet downloading made easy =- : -= Get GrabIt for free from http://www.shemes.com/ =- -- http://mail.python.org/mailman/listinfo/python-list
Re: Parallel port programming on windows XP/2000?
Forgot to say - under OS' derived from Windows NT (i.e. NT 3.5, NT4, 2K, XP and future) it is not possible to directly access the parallel port, this has to be done by a kernel driver, hence the need to install something like DLPortIO, which parly exists in the kernel to access the hardware, and partly in userland to allow your programs to talk to the kernel part. I find it very annoying just how far PCs have regressed in terms of simple IO - back in the 8 bit days it was easy to hook sensors and actuators up to a computer without much knowledge and program something with them in Basic. These days it's almost impossible without special kit and lots of know how. Heck, the old BBC Mirco had raw IO capabilites as fast as an IBM parallel port, and more flexible to boot. Progress. A real pain for rd types. --- cds c d saunter ([EMAIL PROTECTED]) wrote: : Novice Experl ([EMAIL PROTECTED]) wrote: : : I'd like to write a simple application that interfaces with the parallel port, and changes the data on it according to keyboard input. I hope I can get it to run under windows xp and / or windows 2000. : : How can I do this? What do I need to know? It doesn't look like the standard library (the one under my pillow) has that feature. In addition, I've heard that with newer versions of windows don't let you communicate with the port directly, instead requiring interfacing with some driver? : I always use DLPortIO, makes life almost as simple as GWBasic and a DOS : box... You can either create a custom extension around this or use : ctypes. Generally speaking a custom .dll is only needed if you are your : lpt transactions are bidirectional, highly interleaved and high bandwidth. : DLPortIO: http://www.driverlinx.com/DownLoad/DlPortIO.htm : ctypes: http://starship.python.net/crew/theller/ctypes/ : Note that DLPortIO is not a Python thing, it's a generic Windows .dll with : C and VB examples, and needs installing, so it can't be packaged with : py2exe. I'd guess this is the same for other parallel port accesing : tools - I think you need admin privilidges on a Windows NT/2K/XP box to : install DLPortIO, but not to use it. : If you decide this is the best route for you and find yourself stuck, drop : me an email for some example code. : --- : cds -- http://mail.python.org/mailman/listinfo/python-list
