hi,
i would like to ask for your suggestions on how to go about this kind of problem:
i have an external pulse that is fed into a circuit. the pulse frequency is varying, but the duty cycle is constant. the circuit simply counts the number of pulses that come.
given this kind of setup, one may simply tweak or cheat the circuit by adding more pulses, which is not favorable. this addition of pulses may be done by simply pulling a high signal low or pulling a low signal high.
if i know the rate of change of the pulses, how would i be able to determine if the next pulse that comes in the circuit is a valid pulse or not? what i am only after is checking if the pulses arrive faster than normal....
thanks!
i would like to ask for your suggestions on how to go about this kind of problem:
i have an external pulse that is fed into a circuit. the pulse frequency is varying, but the duty cycle is constant. the circuit simply counts the number of pulses that come.
given this kind of setup, one may simply tweak or cheat the circuit by adding more pulses, which is not favorable. this addition of pulses may be done by simply pulling a high signal low or pulling a low signal high.
if i know the rate of change of the pulses, how would i be able to determine if the next pulse that comes in the circuit is a valid pulse or not? what i am only after is checking if the pulses arrive faster than normal....
thanks!