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Pic 18F4550 oscilators (basics)

Posted on 2011-02-28
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I am programing with assembler language (MPLAB).
1.If i use 10MHz  crystal oscilator (osci1/osci2, 22pF).
;CONFIG  FOSC =  HS
;CONFIG  FOSC =  HSPLL_HS
What else must i define to determinate at what frequency CPU will run with examples of config above?
 
2. What is the max internal frequency this PIC can run and what what must i write below
CONFIG  FOSC = ............?
What else must i define to determinate at what frequency CPU will run with examples of config above?

And where do i find the CONFIG list?
Tell me also pleas the path to appropriate zone for PIC microcontrollers questions?


I really hope that i will find help here on expert exchange.
Thank you
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Question by:pr2501
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nobus earned 2000 total points
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by:pr2501
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Thank you.
Next was mising to work with 40MHz:

CONFIG CPUDIV = OSC4_PLL6 ;
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by:nobus
ID: 35008218
tx for feedback - let it oscillate now !
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