So David, Does that mean you are going to layout a "proper" new board for all of us ?
As I am sure you are aware, the original procesor does not appear to be available so that would mean a new design using a current or cutting edge cpu version. Of course the new unit would have to be as cheap as the current one. While your at it, I would like a bigger display (4 lines min) that is back-lit. Also, as you rewrite the software, I would, in addition, like all the capabilities of the Tboltmon.exe program included. Being a Timenut, I would expect nothing but the best, so level 5 will do it. Thank you, Bill....WB6BNQ David VanHorn wrote: > There are levels of "it works"... Level 1 is "I built one and it works". > Level 2 is "I built one like yours and it works". Level 3 is "I built a > bunch and they all work". Level 4 is "I built a million and they all work". > Level five adds environmental issues, EMI and ESD. I usually work at level > 5. > > With that diode scheme I would expect a bunch of current-driven ripple in > VCC, which could cause various amounts of flakiness. > Hard to say without data sheets and a scope, but that's really the point. A > solid analog regulator would be a slam-dunk level 4 solution. > > ________________________________________ > From: time-nuts-boun...@febo.com [time-nuts-boun...@febo.com] On Behalf Of > Peter Vince [pvi...@theiet.org] > Sent: Thursday, July 07, 2011 1:00 PM > To: Discussion of precise time and frequency measurement > Subject: Re: [time-nuts] fluke.l monitor for Thunderbolt . . . the > sagacontinues > > But surely it doesn't matter David? There is nothing critical in > there, it's just a display. As long as the voltage is within the > processor's operating window, that is surely good enough? > > Peter > > On 7 July 2011 15:48, David VanHorn <d.vanh...@elec-solutions.com> wrote: > > > > Vf is highly dependent on current and temperature. The processor alone is > > a very dynamic load. > > I wouldn't trust it in a hobby project, and I can't imagine proposing it > > for a professional design. > > > > Without knowing much in details, a bog standard 3.3V regulator is $0.78 at > > Digikley, in singles. > > L78L33ABZ-AP > > If there are unusual requirements, then that might go up. > > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
