On Nov 14, 2017 6:51 PM, "Jim Anderson" <jim.ander...@kpu.ca> wrote:
As it turns out, I did mess one module up (the third one I built) where the CPLD now seems to be fried and I gave up on the whole module (I don't know if the CPLD was bad to start with, or if bad soldering on the flash chip contributed, but it did work for a few minutes while iMPACT was telling me there were 17 CPLDs on the JTAG bus, then the whole thing quit and the 3.3v bus is shorted to ground now...) I encountered that exact same failure mode on one of my builds. Did you get your CPLDs from DigiKey? I wonder about their stock of CPLDs. I've had 2 that didn't work for me so far; the second one just won't enumerate on the JTAG bus.