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BF533 EZ KIT Changing CCLK & SCLK dynamically

Question asked by ridwanoz on Jul 30, 2012
Latest reply on Aug 1, 2012 by ridwanoz



BF533 EZ KIT has a 27 MHz crystal oscillator. After it is multiplied we get VCO and by dividing VCO we get SCLK and CCLK.

The multiplier is determined by the PLL_CTL register and the divider values are determined by PLL_DIV register, aren't they?


I want to change the Core Clock frequency and System Clock frequency of bf533.


VisualDSP++ shows PLL register values as :


PLL_CTL 1400

PLL_DIV  0005


which means both of them are at the reset state.


How can i change those register values by a code segment ?


Please answer,