On Wed, 20 Jan 2010, Jeff Epler wrote: > Date: Wed, 20 Jan 2010 17:39:20 -0600 > From: Jeff Epler <jep...@unpythonic.net> > Reply-To: EMC developers <emc-developers@lists.sourceforge.net> > To: EMC developers <emc-developers@lists.sourceforge.net> > Subject: Re: [Emc-developers] Request for testers: new builds of the hostmot2 > firmware images > > On Tue, Jan 19, 2010 at 05:29:49PM -0800, Peter C. Wallace wrote: >> Being unable to reconfig the FPGA usually means that the FPGA is driving some >> line that messes up the bridge (for example hold-holda or /ready are a couple >> of fatal pins if driven wrong). When I have that problem, it usually that the >> .ucf (constraint) file was not used for some reason. In this case the bitfile >> has its pinout assigned willy-nilly. The pad report can be used to verify >> that >> the generated pinout matches the constraints. > > I spot checked a few, including HOLD, HOLDA and READY and they're all in > the location specified in 7i68.ucf. Is that the proper constraint file > to use for 3x20?
Yep (well theres a 3x20.ucf but its only appropriate for a bare 3X20) > > Does the 3x20 require non-default bitgen options (-g DONE_cycle and so on) > like 7i43? I tried adding these (with the same settings I used on 7i43, > for want of a better guess) in a firmware I sent privately to seb, > but he hasn't been able to test it yet, and this really is just a stab > in the dark, or more like hoping the next problem is the same as the > previous one. > > Jeff No, unlike the 7I43, the 3X20 doesnt care about config options so this is fairly mysterious. If you point me to the bad bitfile I'll give it a try here and do some probing about. I can also send a log file and .ut file of my build for comparison Peter Wallace Mesa Electronics ------------------------------------------------------------------------------ Throughout its 18-year history, RSA Conference consistently attracts the world's best and brightest in the field, creating opportunities for Conference attendees to learn about information security's most important issues through interactions with peers, luminaries and emerging and established companies. http://p.sf.net/sfu/rsaconf-dev2dev _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
