bjuric
Advanced Member level 4
Hi guys,
I need to do some precise timing in 10us to 10ms range. And for this, I'm trying to achieve as precise crystal frequency as possible. The oscillator also needs to be tunable for periodic calibration.
This is the setup. The oscilloscope is showing nice waveform, but I'm unable to measure the fine frequency changes for now (my frequency meter is acting weird).
I'm using PIC18F2420 and it's internal oscillator circuitry as a tunable pierce oscillator (hopefully).
Has anyone tried using this setup?
Thanks.
I need to do some precise timing in 10us to 10ms range. And for this, I'm trying to achieve as precise crystal frequency as possible. The oscillator also needs to be tunable for periodic calibration.
This is the setup. The oscilloscope is showing nice waveform, but I'm unable to measure the fine frequency changes for now (my frequency meter is acting weird).
I'm using PIC18F2420 and it's internal oscillator circuitry as a tunable pierce oscillator (hopefully).
Has anyone tried using this setup?
Thanks.