- From: Ivan Martinez <imr_at_oersted.dtu.dk>
- Date: Fri, 31 May 2002 14:10:47 +0200
Ooops! Sorry, I misunderstood your question. Documentation/comedi/drivers.txt says: "The 8255 appears in Comedi as a single digital I/O subdevice with 24 channels. The channel 0 corresponds to the 8255's port A, bit 0; channel 23 corresponds to port C, bit 7. Direction configuration is done in blocks, with channels 0-7, 8-15, 16-19, and 20-23 making up the 4 blocks. The only 8255 mode supported is mode 0." Then I guess you just have to see which comedi functions configure the direction of digital channels, which I don't know now... Ivan Martinez On Friday 31 May 2002 02:02 pm, Ivan Martinez wrote: > http://stm.lbl.gov/pipermail/comedi/2002-May/003072.html > http://stm.lbl.gov/pipermail/comedi/2002-May/003016.html > > On Friday 31 May 2002 01:01 pm, linutux loinux wrote: > > I have a 6503x board which use a 8255 chip, but I don know how I can > > configure the 8255 chip to configure the ports as input or output.Can you > > help me? > > > > Thanks. > > > > > > _________________________________________________________________ > > Hable con sus amigos en línea, pruebe MSN Messenger: > > http://messenger.msn.es > > > > > > > > _______________________________________________ > > comedi mailing list > > comedi_at_stm.lbl.gov > > http://stm.lbl.gov/cgi-bin/mailman/listinfo/comedi > > _______________________________________________ > comedi mailing list > comedi_at_stm.lbl.gov > http://stm.lbl.gov/cgi-bin/mailman/listinfo/comedi
Received on 2002-05-31Z11:10:47