<grin> No-one does until they get caught out with it :-)
Depending on the sense of the reset / I/O either a pull up resistor to +V or a pull down to gnd will do the job. In this case a pull down is needed. I had a real funny effect on a small microcontroller due to this. I forgot the pull-up on the reset, and the blasted uP stopped working every time I toggled the pin adjacent to the reset pin. There was enough capacitive coupling to trip the reset. Weird thing was that if I pointed my finger at the uP it also stopped! (same reason) That's after I swore never to miss off a pull up again after the previous such problem :-) Andy On Wed, 08 Jul 2009 19:20:25 -0000 "[email protected]" <[email protected]> wrote: > Oh Damn! I never even thought of that,DOH ! > So a couple if step down resistors on the PWR and Reset ? > > > --- In [email protected], Andy Eskelson <andyya...@...> wrote: > > > > With any form of reset, or in fact an input of any sort, it's not a good > > idea to leave them floating, tie them to their inactive state so that > > stray spikes and such like do not cause them to trigger. > > > > > > > > Andy > > > > > > > > On Tue, 07 Jul 2009 20:35:15 -0700 > > rocko <sunblast...@...> wrote: > > > > > Ooops, my bad i uploaded the wrong file. > > > here's the right one. > > > > > > > > > > > > On Tue, 2009-07-07 at 20:29 -0700, rocko wrote: > > > > [Attachment(s) from rocko included below] > > > > > > > > > > > > > > > > This is my 2nd circuit board i designed in kicad, went much better > > > > than my first. > > > > It's an analog sequencer based on the Baby 10 sequencer. > > > > Went from schematic to board without too many hassles. > > > > > > > > However after taking a 2nd look im not so sure i did the reset switch > > > > or the power in right. > > > > > > > > I didn't get any erc error's on the schematic or board. > > > > Power in is just gonna be a jack for a wal-wart. > > > > I've attached a PS file of the schematic if anyone cares to take a > > > > look. > > > > > > > > > > > > > > > > > > > > > > > > > > > > ------------------------------------ > > > > > > Please read the Kicad FAQ in the group files section before posting your > > > question. > > > Please post your bug reports here. They will be picked up by the creator > > > of Kicad. > > > Please visit http://www.kicadlib.org for details of how to contribute > > > your symbols/modules to the kicad library. > > > For building Kicad from source and other development questions visit the > > > kicad-devel group at http://groups.yahoo.com/group/kicad-develYahoo! > > > Groups Links > > > > > > > > > > > > > > > > ------------------------------------ > > Please read the Kicad FAQ in the group files section before posting your > question. > Please post your bug reports here. They will be picked up by the creator of > Kicad. > Please visit http://www.kicadlib.org for details of how to contribute your > symbols/modules to the kicad library. > For building Kicad from source and other development questions visit the > kicad-devel group at http://groups.yahoo.com/group/kicad-develYahoo! Groups > Links > > >
