Shawn Tan Ser Ngiap wrote:
>> current i am using a 10MHZ crystal with 4X step up, when i implement
>> spi what is the Fosc? is it 10Mhz or 40Mhz? pls advise
>
> IIRC, it should be 10...

No, it's 40MHz.  Fosc refers to the speed the PIC logic is being driven at.
The instruction clock speed is 1/4 that, or 10MHz.


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