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In SysConfig under Clock > Input Clock Frequency (Hz) it says "Make sure the value put here matches the actual input clock frequency provided on the board/SOC."
How can I determine the actual input clock frequency? Where is that configured and can I change it?
Thanks,
Eitan
Hi Eitan,
The actual input clock frequency depends on the XTAL frequency given on the board, clock selection/ divider registers, or the PLL lock frequency and divider configuration values. By default, the values would be as mentioned in the TRM (AM263x Sitara
Microcontroller Technical Reference Manual (Rev. D) (ti.com)) Clocking chapter unless you configure any of the clock configuration registers with different values in your application. Could you please let us know if that's the case?
Regards,
Sahana
Hi Eitan,
you can find the frequencies of the root clock inputs in Table 6-20 of the TRM:
CORE and PER PLL clock values can also be found in sections "6.4.1.1.2 CORE PLL Overview" and "6.4.1.1.3 PER PLL Overview"
Best,
Daniel
