Hi Mark There is probably nothing wrong with your parallel port, Pin 12 and Pin 13 are inputs to your computer and depending on how your parallel port is implemented the voltages could quite reasonably be different between the pins.
To check the parallel port voltages try running the command: lmilk -2 As well as reading I2C data from pin 12 and 13 this command switches D0 to D7 to produce an output voltage. If you then measuring between pins 2,3,4,5,6,7,8,9 and 25, because these pins are outputs they should produce some sort of reasonable voltage on any computer. Best Regards Trev On Wednesday 03 Aug 2005 01:51, Mark Weaver wrote: > > I'm assuming you have a resistor in-place and the parallel connector > > attached to another PC, as in my follow-up email? > > The parallel port on the capture PC I was using is buggered -- it's > outputting +4.15V on pin 13, and +2.8V on pin 12. Really odd -- I tried > probing the parallel port on the donor PC and that has a decent +5V out > so I guess I need to try another PC for capturing. I can see why the > card doesn't like the I2C bus being pulled down to 0.4V. > > Thanks, > > Mark > > > ------------------------------------------------------- > SF.Net email is sponsored by: Discover Easy Linux Migration Strategies > from IBM. Find simple to follow Roadmaps, straightforward articles, > informative Webcasts and more! Get everything you need to get up to > speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click > _______________________________________________ > ivtv-devel mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/ivtv-devel ------------------------------------------------------- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click _______________________________________________ ivtv-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/ivtv-devel
