On 4/9/2013 12:06 PM, Jon Elson wrote: > >> --- On Tue, 4/9/13, Viesturs Lācis<viesturs.la...@gmail.com> wrote: >> <clip> >> >> >>> It has been discussed many times on this list that there is >>> only one or two >>> pci-to-parport cards out there that do actually work in EPP >>> mode. All the >>> others do so only in theory and docs, not in reality. >>> >>> > I think Viesturs is overstating the problems with these plug-in cards. Yes, > there are several old ones that definitely don't work, and one where the > manufacturer of the chip even admits that it doesn't work. > > Most on-motherboard ports work fine, as long as a little BIOS bug is > worked around, and as far as I know all LinuxCNC 2.4 and later drivers > know how to do this. So, that problem should no longer be any problem. > (I sometimes run into this when running diagnostics on EPP-attached > hardware. If the diags only work after running LinuxCNC, that makes > it clear.) > > Hopefully we can assemble a list of boards and parport chips known > to work and make that available on the wiki. > > Jon > > ------------------------------------------------------------------------------ > I haven't had a problem with the D525MW cards running the onboard LPT port in EPP mode.. at least not with the last three that I used.
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