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Thanks for the suggestion, going to try that code

Going to take a look at the application note, though I've decided to go with the external comparator.
If I'm using Timer1's external input (pin C0?), how can I make timer1 give me its contents if aft ...

If I'm going to use the external output of the comparator to connect it to Timer1 external clock input, and use Timer1 as a synchronous counter, do I have to poll the comparator's interrupt flag or c ...

I used a voltage divider to get a voltage reference of 2.1V and connected it to pin A3 with mode 5 and that worked fine when checking pin A5 with an oscilloscope, although I couldn't get anything fr ...

>>I'm trying to turn the sine wave into a square wave
>>I want to make the PIC count the number of 40 kHz pulses it received
>>Is it possible to do this with out adding any hardwa ...

Thanks for your answers.
The reason why I'm trying to turn the sine wave into a square wave is because I want to make the PIC count the number of 40 kHz pulses it received, so I tried using the compa ...

Hi
Im using a 16f873a's comparator to turn a 40khz sinusoidal signal with a 50 % duty cycle into a 40khz square wave signal. The problem is that when i check the comparator's output with an oscillosc ...