For the 887 use 8Mhz for the calcs.
I am not sure about the 4520, I have not used USART with PLL enabled.
But...
I think the USART uses the primary OSC so try 4Mhz. 50 50 chance of it working
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For the 887 use 8Mhz for the calcs.
I am not sure about the 4520, I have not used USART with PLL enabled.
But...
I think the USART uses the primary OSC so try 4Mhz. 50 50 chance of it working
Dave
Always wear safety glasses while programming.
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