Commercial is fine.... On Wednesday, October 18, 2017, Josh Malone <[email protected]> wrote:
> Also, meant to ask: > > Brian's BOM includes the Industrial variant of the CPLD. The > commercial variant is almost $1 cheaper and seems well within > tolerance > > (voltage min is 3 instead of 2.7, temp is 0 - 70 C instead of 40 - 85 °C) > > > Any reason not to sub this part in? > > -Josh > > On Wed, Oct 18, 2017 at 4:56 PM, Josh Malone <[email protected] > <javascript:;>> wrote: > > Thanks. I'm going to just order new parts and try again. > > > > On Wed, Oct 18, 2017 at 4:49 PM, Brian Brindle <[email protected] > <javascript:;>> wrote: > >> 11.7k on 2 of mine. > >> > >> > >> On Oct 18, 2017 4:25 PM, "Stephen Adolph" <[email protected] > <javascript:;>> wrote: > >>> > >>> I can try to measure it later today for you. > >>> > >>> On Wed, Oct 18, 2017 at 4:24 PM, Stephen Adolph <[email protected] > <javascript:;>> > >>> wrote: > >>>> > >>>> either the chip is a dud, or you have soldered it down in the wrong > >>>> orientation (which is kinda easy to do)... Do you have more CPLDs? > >>>> > >>>> On Wed, Oct 18, 2017 at 4:22 PM, Josh Malone <[email protected] > <javascript:;>> > >>>> wrote: > >>>>> > >>>>> Thanks for the leads. > >>>>> > >>>>> I removed the CPLD and the resistance from 3v3 to gnd went to open; > >>>>> repopulated it and it went to 3-ohms. Dunno what to try next. Maybe > >>>>> put the same CPLD back on an original REX board (non-castellated) and > >>>>> see what happens. But, I'd *really* love for someone to measure the > >>>>> resistance on a known-good REX board and let me know what it should > >>>>> be. Assuming the CPLD draws <= 1ma (datasheet says 17uA standby), R > >>>>> should be over ~3k. > >>>>> > >>>>> -Josh > >>>> > >>>> > >>> > >> >
