| /* |
| * Copyright (c) 2015, Freescale Semiconductor, Inc. |
| * Copyright 2016-2017 NXP |
| * |
| * Redistribution and use in source and binary forms, with or without modification, |
| * are permitted provided that the following conditions are met: |
| * |
| * o Redistributions of source code must retain the above copyright notice, this list |
| * of conditions and the following disclaimer. |
| * |
| * o Redistributions in binary form must reproduce the above copyright notice, this |
| * list of conditions and the following disclaimer in the documentation and/or |
| * other materials provided with the distribution. |
| * |
| * o Neither the name of the copyright holder nor the names of its |
| * contributors may be used to endorse or promote products derived from this |
| * software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR |
| * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
| * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| /* |
| * 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. |
| */ |
| |
| /* TEXT BELOW IS USED AS SETTING FOR THE CLOCKS TOOL ***************************** |
| !!ClocksProfile |
| product: Clocks v1.0 |
| processor: MKL25Z128xxx4 |
| package_id: MKL25Z128VLK4 |
| mcu_data: ksdk2_0 |
| processor_version: 1.1.0 |
| board: FRDM-KL25Z |
| * BE CAREFUL MODIFYING THIS COMMENT - IT IS YAML SETTINGS FOR THE CLOCKS TOOL **/ |
| |
| #include "fsl_smc.h" |
| #include "clock_config.h" |
| |
| /******************************************************************************* |
| * Definitions |
| ******************************************************************************/ |
| #define MCG_PLL_DISABLE 0U /*!< MCGPLLCLK disabled */ |
| #define OSC_CAP0P 0U /*!< Oscillator 0pF capacitor load */ |
| #define OSC_ER_CLK_DISABLE 0U /*!< Disable external reference clock */ |
| #define SIM_OSC32KSEL_LPO_CLK 3U /*!< OSC32KSEL select: LPO clock */ |
| #define SIM_PLLFLLSEL_MCGFLLCLK_CLK 0U /*!< PLLFLL select: MCGFLLCLK clock */ |
| #define SIM_PLLFLLSEL_MCGPLLCLK_CLK 1U /*!< PLLFLL select: MCGPLLCLK clock */ |
| |
| /******************************************************************************* |
| * Variables |
| ******************************************************************************/ |
| /* System clock frequency. */ |
| extern uint32_t SystemCoreClock; |
| |
| /******************************************************************************* |
| * Code |
| ******************************************************************************/ |
| /*FUNCTION********************************************************************** |
| * |
| * Function Name : CLOCK_CONFIG_SetFllExtRefDiv |
| * Description : Configure FLL external reference divider (FRDIV). |
| * Param frdiv : The value to set FRDIV. |
| * |
| *END**************************************************************************/ |
| static void CLOCK_CONFIG_SetFllExtRefDiv(uint8_t frdiv) |
| { |
| MCG->C1 = ((MCG->C1 & ~MCG_C1_FRDIV_MASK) | MCG_C1_FRDIV(frdiv)); |
| } |
| |
| /******************************************************************************* |
| ********************** Configuration BOARD_BootClockRUN *********************** |
| ******************************************************************************/ |
| /* TEXT BELOW IS USED AS SETTING FOR THE CLOCKS TOOL ***************************** |
| !!Configuration |
| name: BOARD_BootClockRUN |
| outputs: |
| - {id: Bus_clock.outFreq, value: 24 MHz} |
| - {id: Core_clock.outFreq, value: 48 MHz, locked: true, accuracy: '0.001'} |
| - {id: ERCLK32K.outFreq, value: 1 kHz} |
| - {id: Flash_clock.outFreq, value: 24 MHz} |
| - {id: LPO_clock.outFreq, value: 1 kHz} |
| - {id: MCGIRCLK.outFreq, value: 32.768 kHz} |
| - {id: OSCERCLK.outFreq, value: 8 MHz} |
| - {id: PLLFLLCLK.outFreq, value: 48 MHz} |
| - {id: System_clock.outFreq, value: 48 MHz} |
| settings: |
| - {id: MCGMode, value: PEE} |
| - {id: MCG.FCRDIV.scale, value: '1', locked: true} |
| - {id: MCG.FRDIV.scale, value: '32'} |
| - {id: MCG.IREFS.sel, value: MCG.FRDIV} |
| - {id: MCG.PLLS.sel, value: MCG.PLL} |
| - {id: MCG.PRDIV.scale, value: '2', locked: true} |
| - {id: MCG.VDIV.scale, value: '24', locked: true} |
| - {id: MCG_C1_IRCLKEN_CFG, value: Enabled} |
| - {id: MCG_C2_OSC_MODE_CFG, value: ModeOscLowPower} |
| - {id: MCG_C2_RANGE0_CFG, value: High} |
| - {id: MCG_C2_RANGE0_FRDIV_CFG, value: High} |
| - {id: OSC0_CR_ERCLKEN_CFG, value: Enabled} |
| - {id: OSC_CR_ERCLKEN_CFG, value: Enabled} |
| - {id: SIM.CLKOUTSEL.sel, value: SIM.OUTDIV4} |
| - {id: SIM.OSC32KSEL.sel, value: PMC.LPOCLK} |
| - {id: SIM.OUTDIV1.scale, value: '2'} |
| - {id: SIM.PLLFLLSEL.sel, value: SIM.MCGPLLCLK_DIV2} |
| - {id: SIM.TPMSRCSEL.sel, value: SIM.PLLFLLSEL} |
| - {id: SIM.UART0SRCSEL.sel, value: SIM.PLLFLLSEL} |
| - {id: SIM.USBSRCSEL.sel, value: SIM.PLLFLLSEL} |
| sources: |
| - {id: OSC.OSC.outFreq, value: 8 MHz, enabled: true} |
| * BE CAREFUL MODIFYING THIS COMMENT - IT IS YAML SETTINGS FOR THE CLOCKS TOOL **/ |
| |
| /******************************************************************************* |
| * Variables for BOARD_BootClockRUN configuration |
| ******************************************************************************/ |
| const mcg_config_t mcgConfig_BOARD_BootClockRUN = |
| { |
| .mcgMode = kMCG_ModePEE, /* PEE - PLL Engaged External */ |
| .irclkEnableMode = kMCG_IrclkEnable, /* MCGIRCLK enabled, MCGIRCLK disabled in STOP mode */ |
| .ircs = kMCG_IrcSlow, /* Slow internal reference clock selected */ |
| .fcrdiv = 0x0U, /* Fast IRC divider: divided by 1 */ |
| .frdiv = 0x0U, /* FLL reference clock divider: divided by 32 */ |
| .drs = kMCG_DrsLow, /* Low frequency range */ |
| .dmx32 = kMCG_Dmx32Default, /* DCO has a default range of 25% */ |
| .pll0Config = |
| { |
| .enableMode = MCG_PLL_DISABLE, /* MCGPLLCLK disabled */ |
| .prdiv = 0x1U, /* PLL Reference divider: divided by 2 */ |
| .vdiv = 0x0U, /* VCO divider: multiplied by 24 */ |
| }, |
| }; |
| const sim_clock_config_t simConfig_BOARD_BootClockRUN = |
| { |
| .pllFllSel = SIM_PLLFLLSEL_MCGPLLCLK_CLK, /* PLLFLL select: MCGPLLCLK clock */ |
| .er32kSrc = SIM_OSC32KSEL_LPO_CLK, /* OSC32KSEL select: LPO clock */ |
| .clkdiv1 = 0x10010000U, /* SIM_CLKDIV1 - OUTDIV1: /2, OUTDIV4: /2 */ |
| }; |
| const osc_config_t oscConfig_BOARD_BootClockRUN = |
| { |
| .freq = 8000000U, /* Oscillator frequency: 8000000Hz */ |
| .capLoad = (OSC_CAP0P), /* Oscillator capacity load: 0pF */ |
| .workMode = kOSC_ModeOscLowPower, /* Oscillator low power */ |
| .oscerConfig = |
| { |
| .enableMode = kOSC_ErClkEnable, /* Enable external reference clock, disable external reference clock in STOP mode */ |
| } |
| }; |
| |
| /******************************************************************************* |
| * 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); |
| /* Configure FLL external reference divider (FRDIV). */ |
| CLOCK_CONFIG_SetFllExtRefDiv(mcgConfig_BOARD_BootClockRUN.frdiv); |
| /* Set MCG to PEE mode. */ |
| CLOCK_BootToPeeMode(kMCG_OscselOsc, |
| kMCG_PllClkSelPll0, |
| &mcgConfig_BOARD_BootClockRUN.pll0Config); |
| /* Configure the Internal Reference clock (MCGIRCLK). */ |
| CLOCK_SetInternalRefClkConfig(mcgConfig_BOARD_BootClockRUN.irclkEnableMode, |
| mcgConfig_BOARD_BootClockRUN.ircs, |
| mcgConfig_BOARD_BootClockRUN.fcrdiv); |
| /* Set the clock configuration in SIM module. */ |
| CLOCK_SetSimConfig(&simConfig_BOARD_BootClockRUN); |
| /* Set SystemCoreClock variable. */ |
| SystemCoreClock = BOARD_BOOTCLOCKRUN_CORE_CLOCK; |
| } |
| |
| /******************************************************************************* |
| ********************* Configuration BOARD_BootClockVLPR *********************** |
| ******************************************************************************/ |
| /* TEXT BELOW IS USED AS SETTING FOR THE CLOCKS TOOL ***************************** |
| !!Configuration |
| name: BOARD_BootClockVLPR |
| outputs: |
| - {id: Bus_clock.outFreq, value: 800 kHz} |
| - {id: Core_clock.outFreq, value: 4 MHz} |
| - {id: ERCLK32K.outFreq, value: 1 kHz} |
| - {id: Flash_clock.outFreq, value: 800 kHz} |
| - {id: LPO_clock.outFreq, value: 1 kHz} |
| - {id: MCGIRCLK.outFreq, value: 4 MHz} |
| - {id: System_clock.outFreq, value: 4 MHz} |
| settings: |
| - {id: MCGMode, value: BLPI} |
| - {id: powerMode, value: VLPR} |
| - {id: MCG.CLKS.sel, value: MCG.IRCS} |
| - {id: MCG.FCRDIV.scale, value: '1', locked: true} |
| - {id: MCG.FRDIV.scale, value: '32'} |
| - {id: MCG.IRCS.sel, value: MCG.FCRDIV} |
| - {id: MCG_C1_IRCLKEN_CFG, value: Enabled} |
| - {id: MCG_C2_OSC_MODE_CFG, value: ModeOscLowPower} |
| - {id: MCG_C2_RANGE0_CFG, value: High} |
| - {id: MCG_C2_RANGE0_FRDIV_CFG, value: High} |
| - {id: SIM.OSC32KSEL.sel, value: PMC.LPOCLK} |
| - {id: SIM.OUTDIV4.scale, value: '5'} |
| sources: |
| - {id: OSC.OSC.outFreq, value: 8 MHz} |
| * BE CAREFUL MODIFYING THIS COMMENT - IT IS YAML SETTINGS FOR THE CLOCKS TOOL **/ |
| |
| /******************************************************************************* |
| * Variables for BOARD_BootClockVLPR configuration |
| ******************************************************************************/ |
| const mcg_config_t mcgConfig_BOARD_BootClockVLPR = |
| { |
| .mcgMode = kMCG_ModeBLPI, /* BLPI - Bypassed Low Power Internal */ |
| .irclkEnableMode = kMCG_IrclkEnable, /* MCGIRCLK enabled, MCGIRCLK disabled in STOP mode */ |
| .ircs = kMCG_IrcFast, /* Fast internal reference clock selected */ |
| .fcrdiv = 0x0U, /* Fast IRC divider: divided by 1 */ |
| .frdiv = 0x0U, /* FLL reference clock divider: divided by 32 */ |
| .drs = kMCG_DrsLow, /* Low frequency range */ |
| .dmx32 = kMCG_Dmx32Default, /* DCO has a default range of 25% */ |
| .pll0Config = |
| { |
| .enableMode = MCG_PLL_DISABLE, /* MCGPLLCLK disabled */ |
| .prdiv = 0x0U, /* PLL Reference divider: divided by 1 */ |
| .vdiv = 0x0U, /* VCO divider: multiplied by 24 */ |
| }, |
| }; |
| const sim_clock_config_t simConfig_BOARD_BootClockVLPR = |
| { |
| .pllFllSel = SIM_PLLFLLSEL_MCGFLLCLK_CLK, /* PLLFLL select: MCGFLLCLK clock */ |
| .er32kSrc = SIM_OSC32KSEL_LPO_CLK, /* OSC32KSEL select: LPO clock */ |
| .clkdiv1 = 0x40000U, /* SIM_CLKDIV1 - OUTDIV1: /1, OUTDIV4: /5 */ |
| }; |
| const osc_config_t oscConfig_BOARD_BootClockVLPR = |
| { |
| .freq = 0U, /* Oscillator frequency: 0Hz */ |
| .capLoad = (OSC_CAP0P), /* Oscillator capacity load: 0pF */ |
| .workMode = kOSC_ModeOscLowPower, /* Oscillator low power */ |
| .oscerConfig = |
| { |
| .enableMode = OSC_ER_CLK_DISABLE, /* Disable external reference clock */ |
| } |
| }; |
| |
| /******************************************************************************* |
| * Code for BOARD_BootClockVLPR configuration |
| ******************************************************************************/ |
| void BOARD_BootClockVLPR(void) |
| { |
| /* Set the system clock dividers in SIM to safe value. */ |
| CLOCK_SetSimSafeDivs(); |
| /* Set MCG to BLPI mode. */ |
| CLOCK_BootToBlpiMode(mcgConfig_BOARD_BootClockVLPR.fcrdiv, |
| mcgConfig_BOARD_BootClockVLPR.ircs, |
| mcgConfig_BOARD_BootClockVLPR.irclkEnableMode); |
| /* Set the clock configuration in SIM module. */ |
| CLOCK_SetSimConfig(&simConfig_BOARD_BootClockVLPR); |
| /* Set VLPR power mode. */ |
| SMC_SetPowerModeProtection(SMC, kSMC_AllowPowerModeAll); |
| #if (defined(FSL_FEATURE_SMC_HAS_LPWUI) && FSL_FEATURE_SMC_HAS_LPWUI) |
| SMC_SetPowerModeVlpr(SMC, false); |
| #else |
| SMC_SetPowerModeVlpr(SMC); |
| #endif |
| while (SMC_GetPowerModeState(SMC) != kSMC_PowerStateVlpr) |
| { |
| } |
| /* Set SystemCoreClock variable. */ |
| SystemCoreClock = BOARD_BOOTCLOCKVLPR_CORE_CLOCK; |
| } |
| |
