Charlton, John wrote:
> Wolfgang,
> 
> Thank you for the information and advice.  We are currently considering this 
> interface in a custom embedded controller design but based on your 
> recommendations we probably need to reassess that decision. We were intending 
> to use the parallel port through a super io chip on a custom designed board 
> but it sounds like we should go with an ISA or PCI bus interface to get 
> real-time performance at 1mbit baud rate.  Our application requires the full 
> 1mbit baudrate continuous for 100msec to 200msec intervals.

FYI, I remember discussions about real-time problems with the PCAN dongle:

  https://mail.gna.org/public/xenomai-help/2007-03/msg00185.html

See also:

  https://mail.gna.org/public/xenomai-help/2007-03/msg00183.html

Can't remember where I got that information from, maybe from PEAK PCAN
support.

But that user did not have the problems you reported. Maybe it's
hardware related.

Wolfgang.

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