On Tue, Jun 6, 2017 at 2:17 PM, Attila Kinali <att...@kinali.ch> wrote:
> On Tue, 6 Jun 2017 16:37:27 -0400 > Bob kb8tq <kb...@n1k.org> wrote: > > . Heck, the STM32F4xx have so much internal noise that the ENOB > of their ADC is below 6bit... so low that they even had to write an > appnote on how to do averaging to get back to the 12 bits the ADC is > spec'ed for. (but don't mention that to an ST sales person, they will > hate your guts afterwards). > Can you actually get back all of those bits? How many samples would you need? My current use case for the STM32 ADC is to track battery voltage and maybe 6 bits is enough but if I can get to 12 with a software-only fix I'll take it. Batteries volts charge slowly so I'd have time to take many samples. It's a rather mundane application. Controlling a battery powered motor and I can't let theLiPo battery dichange below a limit so I'm sampling voltage at 1Hz. Got a link to or the name of the app note? > > -- Chris Albertson Redondo Beach, California _______________________________________________ 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.
