How can I used the interrupt and Timer to work as a monostable

Projects General Guidance
1

Hello All:
I need the Timer1 work as Monostable with certain ON and certain OFF time and should be triggered by Interrupt . I meant when interrupt happened should trig the monostable ( timer)
Thank you in advance for help .I dont like use extra hardware in my circuit.

2

hamiri1969:
Hello All:
I need the Timer1 work as Monostable with certain ON and certain OFF time and should be triggered by Interrupt . I meant when interrupt happened should trig the monostable ( timer)
Thank you in advance for help .I dont like use extra hardware in my circuit.

Sounds as if you want to create "pulses" of a certain "frequency" with a given "duty cycle" while the pulse is HIGH.

Any ideas about

  • the frequency to create pulses with?
  • the duration of each pulse?
  • the accuracy needed for frequency and duration of pulses?

Is it more days, hours, minutes, seconds, milliseconds, microseconds or what?

3

thanks a lot , I did it , I respect your help

4

A monostable is normally triggered on for a given time and then it is normally off until triggered once again.
So don't see a need to have an off time if it is triggered with interrupt.

Overall, unless I missed something, basically interrupt function, delay on and then off again and wait for next interrupt?