LPC1769 systemclock update

[lpcware]

Content originally posted in LPCWare by dsmolczyk on Tue Apr 17 11:00:53 MST 2012
HELP. I am new to this type of development. I need to slow down the system clock. I used SystemCoreClockUpdate() to find that it is running at 100MHz. I am doing processor current sampling while running the easyWeb application. I want to slow down the clock to see how much less power is consumed. I am unsure of how to slow down the clock. Any help would be appreciated!

[lpcware]

Content originally posted in LPCWare by dsmolczyk on Tue Apr 17 12:18:14 MST 2012
I got the clock to speed up to 120 MHz by changing the values of PLL0CFG_Val and CCLKCFG_Val, but now I cannot get it to go back below 120. I've even put back the original values for these two variables, and SystemCoreClockUpdate still says I am operating at 120. Any ideas?