You can find information on the design & use of ethernet devices at the
hardware level at www.circuitcellar.com. I wish you luck!!
Willow Schlanger wrote:
> Instead of using a parallel port I think I'll use an NE 2K card. The
> only problem is I don't know how to program the thing.
>
> Could someone do me a favor and tell me how to like send a signal each
> direction using an NE 2K card? Plex86 includes an NE 2K emulator. I need
> to know how to do this because a parallel can't support the bandwidth.
> There will be _no_ OS on one end (the "slave" PC) but on the other end
> there will be an OS that lets me directly program the thing.
>
> It'd even be helpful if you explain how to do this from the point of
> view of the NE 2K emulation source code; I can look at the source and
> find out what port I/O would correspond to what functionality.
>
> I know how to write a serial communications driver and I'll use serial
> at 230400 bps if I can't directly program the net card. If anyone could
> point me to some docs on the net, that'd be helpful too. Where'd Kevin
> learn how to make an NE 2K emulator? I just need some specs or
> something...
>
> BTW to do 230400 bps via serial I'm going to use RTS etc. as a data bit
> too so it will _really_ be "parallel-serial" (since 2 bits in one
> direction will happen at once). The protocal won't be able to send both
> directions simultaniously (no need to; only thing that'd help for is DMA
> which is being emulated anyways).
>
> Thanks in advance
> Willow
