Another option would be to put a small micro in between your circuit and your PC as an interface buffer. Something with native USB support.<div><br></div><div>Stream the data directly over an 8 bit wide parallel digital interface to the micro (or hell 16 or 32 if you have enough pins) and stream it out over USB using the micro.</div>
<div><br></div><div>- Paul<br><div><br><div class="gmail_quote">On Fri, Feb 11, 2011 at 7:21 PM, Tom Burns <span dir="ltr"><<a href="mailto:tom.i.burns@gmail.com">tom.i.burns@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div>I am not an FPGA developer but I do work for a company that sells products that do highspeed data transmission from FPGA to computer. Our products historically use IDE and are now being rewritten to use PCIe but that is not a simple protocol.</div>
<div><br></div>For 8 Mbps I think your only option is an interface with at least some overhead.<div><br></div><div>However you should be able to find a loadable module without writing much code, no? If your computer has it you could try IDE but you need to be able to DMA and would need to write a custom driver to dump the data. TBH Ethernet might be the simplest way to do it. I don't think SPI would be fast enough and USB2 has a ton of overhead.</div>
<div><br></div><div><font color="#888888">Tom</font><div><div></div><div class="h5"><br><br><div class="gmail_quote">On Fri, Feb 11, 2011 at 6:56 PM, Dwayne C. Litzenberger <span dir="ltr"><<a href="mailto:dlitz@dlitz.net" target="_blank">dlitz@dlitz.net</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Does anybody know how to get 8 Mbps into a PC from a relatively dumb circuit?<br>
<br>
I have a Xilinx FPGA development board, and I'd like to get data into and out of it at these high speeds without having to do the work of setting up a soft CPU or an Ethernet MAC.<br><font color="#888888">
<br>
-- <br>
Dwayne C. Litzenberger <<a href="mailto:dlitz@dlitz.net" target="_blank">dlitz@dlitz.net</a>><br>
OpenPGP: 19E1 1FE8 B3CF F273 ED17 4A24 928C EC13 39C2 5CF7<br>
<br>
_______________________________________________<br>
Lab mailing list<br>
<a href="mailto:Lab@artengine.ca" target="_blank">Lab@artengine.ca</a><br>
<a href="http://artengine.ca/mailman/listinfo/lab" target="_blank">http://artengine.ca/mailman/listinfo/lab</a><br>
</font></blockquote></div><br></div></div></div>
<br>_______________________________________________<br>
Lab mailing list<br>
<a href="mailto:Lab@artengine.ca">Lab@artengine.ca</a><br>
<a href="http://artengine.ca/mailman/listinfo/lab" target="_blank">http://artengine.ca/mailman/listinfo/lab</a><br>
<br></blockquote></div><br></div></div>