"Timothy Smith" <[EMAIL PROTECTED]> wrote:
| Grant Edwards wrote: | > On 2006-07-28, Timothy Smith <[EMAIL PROTECTED]> wrote: | > | > | >> i've been trying to send an 8 byte string to my parallel port | >> under freebsd. the purpose is it to control a relay board. the | >> board simply responds to the output byte coming from the port. | >> eg. 00000001 will set pin 1 high and flick the relay open. | >> todate i've attempted this with merely open() on /dev/ppi0 and | >> numpy for the byte array, but i just can't seem to get it | >> working. i know the parallel port works and i know the relay | >> board works (tested it with it's own windows ultility) so it's | >> just my crappy programming keeping me from success. | >> | > | > I'm guessing there's an implied request for help there | > somewhere. This would be a good start: | > | > http://www.google.com/search?q=python+parallel+port | > | > I'd particularly recommend taking a look at the pyparallel | > module found here: | > | > http://pyserial.sourceforge.net/ | > | > I've not used pyparallel, but based on my experience with | > pyserial and some of Chris Liechti's other work, I'd bet | > dollars to doughnuts it's your best option. | > | > | yes, i did try pyparallel however it will not install on freebsd, | setup.py errors. | | and yes i've done quite a bit of googling, i never expected it to be | this difficult. i've done work with serial ports before. never parallel but. What is on the other side of the link? - if its a small 8 bit micro - you may simply be going too fast... - Hendrik | -- http://mail.python.org/mailman/listinfo/python-list
