I have been having fun with various combinations of openocd, amontec jtagkey and olimex usb-tiny and pxa270 and chianed and unchained JTAG interfaces. We have one JTAG port to xilinx xcr3256 (coolrunner II CPLD) and one to pxa270.
I have a large table of what does and doesn't work which is all very nice, but I suspect won't generally be of much interest here because it all related to r1613 because that was the last version on which xsvf or svf playing into CPLDs worked. I intend to work through svn revisions, keeping the 1613-vontage xsvf code to see how far forward one can go until that dies due to changes elsewhere. David Bisset is also working with latest code to see if he can get it going again on xscale - it seems that nor programing only works in simple-minded mode - as soon as you try to use the debug-handler code in the xscale to program NOR at a useful speed it fails. Anyway. The issue we have is that we are stuck with r1613 for the time being and we can make that work with an amontec jtagkey in chained-JTAG setup quite well (it segfaults every odd run and works just fine every even run - which is about as good as it gets IME :-) However this turned out (when we tried to deploy it to production) to only be true on amd64 machines. On i386 machines boundary scan always fails. This is a bit of a pain (we've gone to buy another amd64 box for now as openocd-fixing time has run out). It works the same (every other time) on amd64 debian testing and stable boxes, with both libftdi 0.13 and 0.16. It doesn't work just the same with libftdi 0.13 and 0.16 on debian stable i386 machines. So, if anyone has any bright ideas for fixing the underlying xsvf problem so we can move to newer code or why it should be different on i386. Is anyone else using OpenOCD to program coolrunner CPLDs? I suspect not otherwise there should be more grumbling that it's been broken for quite some time. all our config files are available at http://balloonboard.org/cgi-bin/viewcvs.cgi/balloon/trunk/utils/openocd/ The case I am talking about above is: openocd -s utils/openocd -f balloon3-amontec.cfg -f loadloon.cfg -f shutdown.cfg Wookey -- Principal hats: iEndian - Balloonboard - Toby Churchill - Emdebian http://wookware.org/ _______________________________________________ Openocd-development mailing list Openocd-development@lists.berlios.de https://lists.berlios.de/mailman/listinfo/openocd-development
