Electronics

Rob Gaddi · Guest

I'm trying to solve this problem for a one-off project. That said, I'm
on a seriously restricted budget, $1000 is probably about the ceiling
and anything I can save will make me a much happier camper.

I've got a target board that I'm trying to communicate with that takes
53 data lines, 10 address lines, and 16 control lines, all
unidirectional LVTTL. I'd like to be able to push at least 20 Mbit/s
into it from the PC. Also, the board has to be something that connects
via a cable, not just a PCI card, as the device I'll be talking to has
to be a few feet away from the PC.

I see two ways I can go about this. One is to have a decent sized
memory buffer (1 MB or better) on the board. In this case I can use
just about any protocol (though I'd prefer to work with USB or Ethernet)
to push data onto the board, and then just say go. The other is to
connect over to the PC via some protocol that can deliver a sustained 20
Mbit/s with guaranteed timing, such as USB 2, or Firewire, in which case
I don't need any memory.

I would love with all my heart not to have to fab a PCB for this, or at
least get away with just doing an easy two layer jobs for some last mile
stuff. Anybody got a convenient off-the-shelf solution for this? I've
contacted AvNet about some of their FPGA eval kits, but who knows how
that's going to turn out.

Thanks,
Rob

Rene Tschaggelar · Guest

Rob Gaddi wrote:

	Electronics Forum Index -> Design	All times are GMT
Page 1 of 1