On Sat, 2010-12-04 at 09:55 +0800, Jim Coleman wrote: > I like the idea of a dip switch or solder bridges if one doesn't plan on > changing the setting alot and wants to save the cost of the dip switch. > while the pot would be easy to adjust, it's less precise than a truth table > of the dip/bridge positions and the resultant reset timer. > > Jim
Thanks Jim. I agree that it would be nice to have a precise, stable input, but I am also trying to avoid any hardware complexity in order to avoid an upgrade loop (ATtiny -> ATmega -> Atom Cube -> Nanotube Superconducting Buckyball hyper... ). It may also be that one or a few presets might be enough. If charge pump is running at 1kHz (based on servo thread), it may be acceptable to wait up to a hundred cycles or .1 seconds to trip an e-stop. If this is the case, .1 seconds might cover the range of common watchdog frequencies. Without testing or experience, I have a hard time knowing what will work. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA ------------------------------------------------------------------------------ What happens now with your Lotus Notes apps - do you make another costly upgrade, or settle for being marooned without product support? Time to move off Lotus Notes and onto the cloud with Force.com, apps are easier to build, use, and manage than apps on traditional platforms. Sign up for the Lotus Notes Migration Kit to learn more. http://p.sf.net/sfu/salesforce-d2d _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
