I have a SVF321R3CKU2 that I would like to measure some of the clock speeds using CKO1 on PTB10. I have configured the CCM_CCOSR register to enable CKO1, set the divisor to /4 and selected the A5 Core for the output. With the current clock setting the A% clock should be running at 264 MHz. I have also configured the IOMUXC for PTB10 to select the CKO1 ALT6. I am using a debugger and verified the following settings:
SPEED: Medium – 100MHZ
DSE: 50 Ohm/80 Ohm
PUS: 100 kOhm Pull Down
CKO1_SEL: CA5 core clock
However I get no output on PTB10/CKO1. Am I missing a configuration item? Any help would be appreciated.
Message was edited by: John Clarke Just realized I labeled the registers wrong in the initial post, sorry for any confusion.