jcbarber

Yeah it is very limited. I thought about a divide by 10 circuit with a 1 MHz crystal but it would take 4. A standard clock crystal only allows me down to a 100th of a day (not small enough more than 15 min) because of the stamp, too bad there isn't a divide by 100 circuit. Well thaks so much for all your help and ideas JCB

Ldanielrosa, Thanks for the info. I guess I should describe my project a bit more. I'm using a basic stamp 1 that only does integer math and is very limited in memory, so I need my hardware to do the work. My base unit for the decimal or base ten clock will be 1/100000 of a day which is 8.64 seconds. With the 100Hz resonator I can count 864 cycles and have my 1/10000 of a day. The display will either be an LCD or 7 segment LEDs and look like 5.000 for noon (0.000 for midnight). I guess the equation to figure on the ripple counter is frequency wanted = frequency of the resonator/2n I guess 2n is determined by which pin on the ripple counter you use as an output (which I still need to figure out). Thanks again! JCBarber

At what resonation do I start at to divide down from to 100 Hz? What crystal do I start with? (I'm very very new at this) JCB

Hi I'm a newbie at most of this. I'm trying to get a resonator to resonate at 100Hz anyone have a resonably simple way. It is for a project I wish to build (a decimal clock). JCB