Dear all,
I have a microcontroller for which I use a quartz crystal, and an RC oscillator circuit, both to produce an axact time measurement.
My quartz has a frequncy of around 32 KHZ and my RC oscillator around 33 KHZ.
I have a question regarding to the choice of my RC oscillator:
- before I had: R=200Kohm, C=300 pF
- Now I have R=100Kohm, C=150 pF
Now I see sometimes, I do not obtain an output for my microcontroller !
Does that change in RC circuit could be the reason?
And in general what is important in choosing RC components?
Many thanks
I have a microcontroller for which I use a quartz crystal, and an RC oscillator circuit, both to produce an axact time measurement.
My quartz has a frequncy of around 32 KHZ and my RC oscillator around 33 KHZ.
I have a question regarding to the choice of my RC oscillator:
- before I had: R=200Kohm, C=300 pF
- Now I have R=100Kohm, C=150 pF
Now I see sometimes, I do not obtain an output for my microcontroller !
Does that change in RC circuit could be the reason?
And in general what is important in choosing RC components?
Many thanks