FRDM-K22F PIT Clock

jackxu — Mon, 04 Jul 2016 12:53:55 GMT

Hi there,

I'm can figure the core clock frequency, but can not figure the PIT Clock. Can you shoe me the key point?

About the project

Thanks in advance!

Jack!

Re: FRDM-K22F PIT Clock

jeremyzhou — Tue, 05 Jul 2016 01:40:16 GMT

Hi Jack,

In the void BOARD_BootClockRUN(void) function, the CLOCK_SetSimConfig(&g_defaultClockConfigRun.simConfig) can configure the frequency of the different clocks by setting the divider value of the OUTDIV1, OUTDIV2 and OUTDIV4.

So you can change the clkdiv1 value to change the frequency of the different clocks.

	.simConfig =
	{
	.pllFllSel = 1U,	/* PLLFLLSEL select PLL. */
	.er32ksrc=2U,	/* ERCLK32K selection, use RTC. */
	.clkdiv1 = 0x01140000U, /* SIM_CLKDIV1. */
	},

Have a great day,
Ping

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topic FRDM-K22F PIT Clock in Kinetis Microcontrollers

FRDM-K22F PIT Clock

Re: FRDM-K22F PIT Clock