40 lines
1.9 KiB
C
40 lines
1.9 KiB
C
#include "clock_config.h"
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#include "fsl_clock.h"
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/*******************************************************************************
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* Variables
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******************************************************************************/
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/* System clock frequency. */
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// extern uint32_t SystemCoreClock;
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/*******************************************************************************
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* Variables for BOARD_BootClockRUN configuration
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******************************************************************************/
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const mcglite_config_t mcgliteConfig_BOARD_BootClockRUN = {
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.outSrc = kMCGLITE_ClkSrcHirc, /* MCGOUTCLK source is HIRC */
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.irclkEnableMode = kMCGLITE_IrclkEnable, /* MCGIRCLK enabled, MCGIRCLK disabled in STOP mode */
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.ircs = kMCGLITE_Lirc8M, /* Slow internal reference (LIRC) 8 MHz clock selected */
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.fcrdiv = kMCGLITE_LircDivBy1, /* Low-frequency Internal Reference Clock Divider: divided by 1 */
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.lircDiv2 = kMCGLITE_LircDivBy1, /* Second Low-frequency Internal Reference Clock Divider: divided by 1 */
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.hircEnableInNotHircMode = true, /* HIRC source is enabled */
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};
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const sim_clock_config_t simConfig_BOARD_BootClockRUN = {
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.er32kSrc = SIM_OSC32KSEL_LPO_CLK, /* OSC32KSEL select: LPO clock */
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.clkdiv1 = 0x10000U, /* SIM_CLKDIV1 - OUTDIV1: /1, OUTDIV4: /2 */
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};
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/*******************************************************************************
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* Code for BOARD_BootClockRUN configuration
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******************************************************************************/
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void BOARD_BootClockRUN(void)
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{
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/* Set the system clock dividers in SIM to safe value. */
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CLOCK_SetSimSafeDivs();
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/* Set MCG to HIRC mode. */
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CLOCK_SetMcgliteConfig(&mcgliteConfig_BOARD_BootClockRUN);
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/* Set the clock configuration in SIM module. */
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CLOCK_SetSimConfig(&simConfig_BOARD_BootClockRUN);
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/* Set SystemCoreClock variable. */
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SystemCoreClock = BOARD_BOOTCLOCKRUN_CORE_CLOCK;
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}
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