If you are using the PLL then you should be using a 5Mhz XTAL to get 20Mhz. The PLL multiplies by 4, so that will get you 20.
If you have a 20Mhz Xtal, set the oscillator for HS and turn the PLL off as macrakit says.
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Re: 20MHZ External Oscillator Settings
If you are using the PLL then you should be using a 5Mhz XTAL to get 20Mhz. The PLL multiplies by 4, so that will get you 20.
If you have a 20Mhz Xtal, set the oscillator for HS and turn the PLL off as macrakit says.
Charles Linquist
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