On Thursday 27 July 2006 15:39, Jason Hecker wrote: > Would an extra bit of hardware such as a PCI card with PLX's PCI9030 > breaking out to the USRP with something like an 80 wire IDE cable be > suitable for high bandwidth, low latency and lowish cost? > > (http://www.plxtech.com/products/io_accelerators/PCI9030/default.htm)
A 9030 is target only, you'd need a 9054, 9056, 9060 or 9080 otherwise the performance would not be very great. Another option is to use a PCI soft core but then you run into licensing issues. I have looked at these for work and one problem (for us anyway) is that the S/G engine doesn't treat the data as precious so it's not very useful for reading from a FIFO. It's quite frustrating because that means you have a chip which has an S/G engine built in but you have to make your own anyway :( I'd love to be shown to be wrong though ;) > I know someone who used gigabit ethernet driver chips hooked to an FPGA > in order to push lots of digitised SVGA video data down a long length > of CAT5e for a KVM application. Was that really ethernet framing? Or just using the CAT5 cable as 4 differential pairs? (Not that there's anything wrong with that - I imagine you'd still get good cable lengths with the right drivers) -- Daniel O'Connor software and network engineer for Genesis Software - http://www.gsoft.com.au "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C
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