Hi all,
I use the FRDMK22FN512VLH12,i would like to measure the CLK out but i dont found in documentation one pin that via it i can affiche frequen cy in scope
can help me
Thank you
Solved! Go to Solution.
Yes, you also need to configure the pin muxing.
Se this great post from Derek Snell:
Verifying Internal Clocks in Kinetis
Regards,
Santiago
Hello,
Search in the Reference Manual for CLKOUT. The pin is PTC2 and the register to configure that pin is the SIM_SOPT2.
Regards,
Santiago
i add this line:
#define SYSTEM_SIM_SOPT2_VALUE 0x00010020U (clkout flash frequency)
,but i see anything in the scope!! should i configure the pin in other register ?
Yes, you also need to configure the pin muxing.
Se this great post from Derek Snell:
Verifying Internal Clocks in Kinetis
Regards,
Santiago