/*********************************************************************************************************************** * This file was generated by the MCUXpresso Config Tools. Any manual edits made to this file * will be overwritten if the respective MCUXpresso Config Tools is used to update this file. **********************************************************************************************************************/ /* * How to setup clock using clock driver functions: * * 1. CLOCK_SetSimSafeDivs, to make sure core clock, bus clock, flexbus clock * and flash clock are in allowed range during clock mode switch. * * 2. Call CLOCK_Osc0Init to setup OSC clock, if it is used in target mode. * * 3. Set MCG configuration, MCG includes three parts: FLL clock, PLL clock and * internal reference clock(MCGIRCLK). Follow the steps to setup: * * 1). Call CLOCK_BootToXxxMode to set MCG to target mode. * * 2). If target mode is FBI/BLPI/PBI mode, the MCGIRCLK has been configured * correctly. For other modes, need to call CLOCK_SetInternalRefClkConfig * explicitly to setup MCGIRCLK. * * 3). Don't need to configure FLL explicitly, because if target mode is FLL * mode, then FLL has been configured by the function CLOCK_BootToXxxMode, * if the target mode is not FLL mode, the FLL is disabled. * * 4). If target mode is PEE/PBE/PEI/PBI mode, then the related PLL has been * setup by CLOCK_BootToXxxMode. In FBE/FBI/FEE/FBE mode, the PLL could * be enabled independently, call CLOCK_EnablePll0 explicitly in this case. * * 4. Call CLOCK_SetSimConfig to set the clock configuration in SIM. */ /* clang-format off */ /* TEXT BELOW IS USED AS SETTING FOR TOOLS ************************************* !!GlobalInfo product: Clocks v4.1 processor: MK82FN256xxx15 package_id: MK82FN256VLQ15 mcu_data: ksdk2_0 processor_version: 4.0.1 * BE CAREFUL MODIFYING THIS COMMENT - IT IS YAML SETTINGS FOR TOOLS **********/ /* clang-format on */ #include "clock_config.h" /******************************************************************************* * Definitions ******************************************************************************/ #define MCG_IRCLK_DISABLE 0U /*!< MCGIRCLK disabled */ #define MCG_PLL_DISABLE 0U /*!< MCGPLLCLK disabled */ #define OSC_CAP0P 0U /*!< Oscillator 0pF capacitor load */ #define SIM_LPUART_CLK_SEL_OSCERCLK_CLK 2U /*!< LPUART clock select: OSCERCLK clock */ #define SIM_OSC32KSEL_OSC32KCLK_CLK 0U /*!< OSC32KSEL select: OSC32KCLK clock */ #define SIM_PLLFLLSEL_MCGFLLCLK_CLK 0U /*!< PLLFLL select: MCGFLLCLK clock */ #define SIM_TRACE_CLK_DIV_1 0U /*!< Trace clock divider divisor: divided by 1 */ #define SIM_TRACE_CLK_FRAC_1 0U /*!< Trace clock divider fraction: multiplied by 1 */ #define SIM_TRACE_CLK_SEL_CORE_SYSTEM_CLK 1U /*!< Trace clock select: Core/system clock */ /******************************************************************************* * Variables ******************************************************************************/ /* System clock frequency. */ extern uint32_t SystemCoreClock; /******************************************************************************* * Code ******************************************************************************/ /*FUNCTION********************************************************************** * * Function Name : CLOCK_CONFIG_FllStableDelay * Description : This function is used to delay for FLL stable. * *END**************************************************************************/ static void CLOCK_CONFIG_FllStableDelay(void) { uint32_t i = 30000U; while (i--) { __NOP(); } } /******************************************************************************* ************************ BOARD_InitBootClocks function ************************ ******************************************************************************/ void BOARD_InitBootClocks(void) { BOARD_BootClockRUN(); } /******************************************************************************* ********************** Configuration BOARD_BootClockRUN *********************** ******************************************************************************/ /* clang-format off */ /* TEXT BELOW IS USED AS SETTING FOR TOOLS ************************************* !!Configuration name: BOARD_BootClockRUN called_from_default_init: true outputs: - {id: Bus_clock.outFreq, value: 7.37 MHz} - {id: Core_clock.outFreq, value: 7.37 MHz} - {id: Flash_clock.outFreq, value: 7.37 MHz} - {id: FlexBus_clock.outFreq, value: 7.37 MHz} - {id: LPO_clock.outFreq, value: 1 kHz} - {id: LPUARTCLK.outFreq, value: 7.37 MHz} - {id: MCGFFCLK.outFreq, value: 57.578125/2 kHz} - {id: MCGFLLCLK.outFreq, value: 21.07359375 MHz} - {id: OSCERCLK.outFreq, value: 7.37 MHz} - {id: OSCERCLK_UNDIV.outFreq, value: 7.37 MHz} - {id: PLLFLLCLK.outFreq, value: 21.07359375 MHz} - {id: System_clock.outFreq, value: 7.37 MHz} - {id: TRACECLKIN.outFreq, value: 7.37 MHz} settings: - {id: MCGMode, value: FBE} - {id: LPUARTClkConfig, value: 'yes'} - {id: MCG.CLKS.sel, value: MCG.OSCSEL} - {id: MCG.FLL_mul.scale, value: '732'} - {id: MCG.FRDIV.scale, value: '256'} - {id: MCG.IREFS.sel, value: MCG.FRDIV} - {id: MCG_C2_RANGE0_CFG, value: High} - {id: MCG_C2_RANGE0_FRDIV_CFG, value: High} - {id: OSC_CR_ERCLKEN_CFG, value: Enabled} - {id: OSC_CR_ERCLKEN_UNDIV_CFG, value: Enabled} - {id: OSC_CR_EREFSTEN_CFG, value: Enabled} - {id: OSC_CR_EREFSTEN_UNDIV_CFG, value: Enabled} - {id: SIM.LPUARTSRCSEL.sel, value: OSC.OSCERCLK} - {id: SIM.OUTDIV3.scale, value: '1', locked: true} - {id: SIM.OUTDIV4.scale, value: '1', locked: true} - {id: TraceClkConfig, value: 'yes'} sources: - {id: OSC.OSC.outFreq, value: 7.37 MHz, enabled: true} * BE CAREFUL MODIFYING THIS COMMENT - IT IS YAML SETTINGS FOR TOOLS **********/ /* clang-format on */ /******************************************************************************* * Variables for BOARD_BootClockRUN configuration ******************************************************************************/ const mcg_config_t mcgConfig_BOARD_BootClockRUN = { .mcgMode = kMCG_ModeFBE, /* FBE - FLL Bypassed External */ .irclkEnableMode = MCG_IRCLK_DISABLE, /* MCGIRCLK disabled */ .ircs = kMCG_IrcSlow, /* Slow internal reference clock selected */ .fcrdiv = 0x1U, /* Fast IRC divider: divided by 2 */ .frdiv = 0x3U, /* FLL reference clock divider: divided by 256 */ .drs = kMCG_DrsLow, /* Low frequency range */ .dmx32 = kMCG_Dmx32Fine, /* DCO is fine-tuned for maximum frequency with 32.768 kHz reference */ .oscsel = kMCG_OscselOsc, /* Selects System Oscillator (OSCCLK) */ .pll0Config = { .enableMode = MCG_PLL_DISABLE, /* MCGPLLCLK disabled */ .prdiv = 0x0U, /* PLL Reference divider: divided by 1 */ .vdiv = 0x0U, /* VCO divider: multiplied by 16 */ }, }; const sim_clock_config_t simConfig_BOARD_BootClockRUN = { .pllFllSel = SIM_PLLFLLSEL_MCGFLLCLK_CLK, /* PLLFLL select: MCGFLLCLK clock */ .pllFllDiv = 0, /* PLLFLLSEL clock divider divisor: divided by 1 */ .pllFllFrac = 0, /* PLLFLLSEL clock divider fraction: multiplied by 1 */ .er32kSrc = SIM_OSC32KSEL_OSC32KCLK_CLK, /* OSC32KSEL select: OSC32KCLK clock */ .clkdiv1 = 0x0U, /* SIM_CLKDIV1 - OUTDIV1: /1, OUTDIV2: /1, OUTDIV3: /1, OUTDIV4: /1 */ }; const osc_config_t oscConfig_BOARD_BootClockRUN = { .freq = 7370000U, /* Oscillator frequency: 7370000Hz */ .capLoad = (OSC_CAP0P), /* Oscillator capacity load: 0pF */ .workMode = kOSC_ModeExt, /* Use external clock */ .oscerConfig = { .enableMode = kOSC_ErClkEnable | kOSC_ErClkEnableInStop,/* Enable external reference clock, enable external reference clock in STOP mode */ .erclkDiv = 0, /* Divider for OSCERCLK: divided by 1 */ } }; /******************************************************************************* * Code for BOARD_BootClockRUN configuration ******************************************************************************/ void BOARD_BootClockRUN(void) { /* Set the system clock dividers in SIM to safe value. */ CLOCK_SetSimSafeDivs(); /* Initializes OSC0 according to board configuration. */ CLOCK_InitOsc0(&oscConfig_BOARD_BootClockRUN); CLOCK_SetXtal0Freq(oscConfig_BOARD_BootClockRUN.freq); /* Set MCG to FBE mode. */ CLOCK_SetExternalRefClkConfig(mcgConfig_BOARD_BootClockRUN.oscsel); CLOCK_SetFbeMode(mcgConfig_BOARD_BootClockRUN.frdiv, mcgConfig_BOARD_BootClockRUN.dmx32, mcgConfig_BOARD_BootClockRUN.drs, CLOCK_CONFIG_FllStableDelay); /* Set the clock configuration in SIM module. */ CLOCK_SetSimConfig(&simConfig_BOARD_BootClockRUN); /* Set SystemCoreClock variable. */ SystemCoreClock = BOARD_BOOTCLOCKRUN_CORE_CLOCK; /* Set LPUART clock source. */ CLOCK_SetLpuartClock(SIM_LPUART_CLK_SEL_OSCERCLK_CLK); /* Set debug trace clock source. */ CLOCK_SetTraceClock(SIM_TRACE_CLK_SEL_CORE_SYSTEM_CLK, SIM_TRACE_CLK_DIV_1, SIM_TRACE_CLK_FRAC_1); }