234 lines
11 KiB
C
234 lines
11 KiB
C
/*
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* Copyright 2019 ,2021 NXP
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* All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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/*
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* How to set up clock using clock driver functions:
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*
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* 1. Setup clock sources.
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*
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* 2. Set up all dividers.
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*
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* 3. Set up all selectors to provide selected clocks.
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*/
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/* TEXT BELOW IS USED AS SETTING FOR TOOLS *************************************
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!!GlobalInfo
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product: Clocks v7.0
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processor: LPC845
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package_id: LPC845M301JBD48
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mcu_data: ksdk2_0
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processor_version: 9.0.0
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board: LPC845BREAKOUT
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* BE CAREFUL MODIFYING THIS COMMENT - IT IS YAML SETTINGS FOR TOOLS **********/
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#include "fsl_power.h"
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#include "fsl_clock.h"
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#include "clock_config.h"
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/*******************************************************************************
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* Definitions
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******************************************************************************/
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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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************************ BOARD_InitBootClocks function ************************
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******************************************************************************/
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void BOARD_InitBootClocks(void)
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{
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BOARD_BootClockFRO18M();
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}
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/*******************************************************************************
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******************** Configuration BOARD_BootClockFRO18M **********************
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******************************************************************************/
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/* TEXT BELOW IS USED AS SETTING FOR TOOLS *************************************
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!!Configuration
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name: BOARD_BootClockFRO18M
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called_from_default_init: true
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outputs:
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- {id: FROHF_clock.outFreq, value: 18 MHz}
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- {id: LowPower_clock.outFreq, value: 10 kHz}
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- {id: System_clock.outFreq, value: 18 MHz}
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- {id: divto750k_clock.outFreq, value: 750 kHz}
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settings:
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- {id: SYSCON.ADCCLKSEL.sel, value: NO_CLOCK}
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- {id: SYSCON.CLKOUTSEL.sel, value: NO_CLOCK}
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- {id: SYSCON.FRG0CLKSEL.sel, value: NO_CLOCK}
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- {id: SYSCON.FRG1CLKSEL.sel, value: NO_CLOCK}
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- {id: SYSCON.FRO_DIRECT.sel, value: SYSCON.fro_osc}
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- {id: SYSCON.SCTCLKSEL.sel, value: NO_CLOCK}
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- {id: SYSCON_PDRUNCFG0_PDEN_PLL_CFG, value: Power_down}
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sources:
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- {id: SYSCON.fro_osc.outFreq, value: 18 MHz}
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* BE CAREFUL MODIFYING THIS COMMENT - IT IS YAML SETTINGS FOR TOOLS **********/
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/*******************************************************************************
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* Variables for BOARD_BootClockFRO18M configuration
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******************************************************************************/
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/*******************************************************************************
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* Code for BOARD_BootClockFRO18M configuration
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******************************************************************************/
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void BOARD_BootClockFRO18M(void)
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{
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/*!< Set up the clock sources */
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/*!< Set up FRO */
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POWER_DisablePD(kPDRUNCFG_PD_FRO_OUT); /*!< Ensure FRO is on */
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POWER_DisablePD(kPDRUNCFG_PD_FRO); /*!< Ensure FRO is on */
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CLOCK_SetFroOscFreq(kCLOCK_FroOscOut18M); /*!< Set up FRO freq */
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CLOCK_SetFroOutClkSrc(kCLOCK_FroSrcFroOsc); /*!< Set FRO clock source */
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POWER_DisablePD(kPDRUNCFG_PD_SYSOSC); /*!< Ensure Main osc is on */
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CLOCK_Select(kEXT_Clk_From_SysOsc); /*!<select external clock source to sys_osc */
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CLOCK_SetMainClkSrc(kCLOCK_MainClkSrcFro); /*!< select fro for main clock */
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CLOCK_SetCoreSysClkDiv(1U);
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/*!< Set SystemCoreClock variable. */
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SystemCoreClock = BOARD_BOOTCLOCKFRO18M_CORE_CLOCK;
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}
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/*******************************************************************************
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******************** Configuration BOARD_BootClockFRO24M **********************
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******************************************************************************/
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/* TEXT BELOW IS USED AS SETTING FOR TOOLS *************************************
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!!Configuration
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name: BOARD_BootClockFRO24M
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outputs:
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- {id: FROHF_clock.outFreq, value: 24 MHz}
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- {id: LowPower_clock.outFreq, value: 10 kHz}
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- {id: System_clock.outFreq, value: 24 MHz}
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- {id: divto750k_clock.outFreq, value: 750 kHz}
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settings:
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- {id: SYSCON.ADCCLKSEL.sel, value: NO_CLOCK}
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- {id: SYSCON.CLKOUTSEL.sel, value: NO_CLOCK}
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- {id: SYSCON.FRG0CLKSEL.sel, value: NO_CLOCK}
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- {id: SYSCON.FRG1CLKSEL.sel, value: NO_CLOCK}
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- {id: SYSCON.FRO_DIRECT.sel, value: SYSCON.fro_osc}
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- {id: SYSCON.SCTCLKSEL.sel, value: NO_CLOCK}
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- {id: SYSCON_PDRUNCFG0_PDEN_PLL_CFG, value: Power_down}
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sources:
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- {id: SYSCON.fro_osc.outFreq, value: 24 MHz}
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* BE CAREFUL MODIFYING THIS COMMENT - IT IS YAML SETTINGS FOR TOOLS **********/
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/*******************************************************************************
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* Variables for BOARD_BootClockFRO24M configuration
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******************************************************************************/
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/*******************************************************************************
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* Code for BOARD_BootClockFRO24M configuration
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******************************************************************************/
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void BOARD_BootClockFRO24M(void)
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{
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/*!< Set up the clock sources */
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/*!< Set up FRO */
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POWER_DisablePD(kPDRUNCFG_PD_FRO_OUT); /*!< Ensure FRO is on */
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POWER_DisablePD(kPDRUNCFG_PD_FRO); /*!< Ensure FRO is on */
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CLOCK_SetFroOscFreq(kCLOCK_FroOscOut24M); /*!< Set up FRO freq */
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CLOCK_SetFroOutClkSrc(kCLOCK_FroSrcFroOsc); /*!< Set FRO clock source */
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POWER_DisablePD(kPDRUNCFG_PD_SYSOSC); /*!< Ensure Main osc is on */
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CLOCK_Select(kEXT_Clk_From_SysOsc); /*!<select external clock source to sys_osc */
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CLOCK_SetMainClkSrc(kCLOCK_MainClkSrcFro); /*!< select fro for main clock */
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CLOCK_SetCoreSysClkDiv(1U);
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/*!< Set SystemCoreClock variable. */
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SystemCoreClock = BOARD_BOOTCLOCKFRO24M_CORE_CLOCK;
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}
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/*******************************************************************************
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******************** Configuration BOARD_BootClockFRO30M **********************
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******************************************************************************/
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/* TEXT BELOW IS USED AS SETTING FOR TOOLS *************************************
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!!Configuration
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name: BOARD_BootClockFRO30M
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outputs:
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- {id: FROHF_clock.outFreq, value: 30 MHz}
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- {id: LowPower_clock.outFreq, value: 10 kHz}
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- {id: System_clock.outFreq, value: 30 MHz}
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- {id: divto750k_clock.outFreq, value: 750 kHz}
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settings:
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- {id: SYSCON.ADCCLKSEL.sel, value: NO_CLOCK}
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- {id: SYSCON.CLKOUTSEL.sel, value: NO_CLOCK}
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- {id: SYSCON.FRG0CLKSEL.sel, value: NO_CLOCK}
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- {id: SYSCON.FRG1CLKSEL.sel, value: NO_CLOCK}
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- {id: SYSCON.FRO_DIRECT.sel, value: SYSCON.fro_osc}
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- {id: SYSCON.SCTCLKSEL.sel, value: NO_CLOCK}
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- {id: SYSCON_PDRUNCFG0_PDEN_PLL_CFG, value: Power_down}
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* BE CAREFUL MODIFYING THIS COMMENT - IT IS YAML SETTINGS FOR TOOLS **********/
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/*******************************************************************************
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* Variables for BOARD_BootClockFRO30M configuration
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******************************************************************************/
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/*******************************************************************************
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* Code for BOARD_BootClockFRO30M configuration
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******************************************************************************/
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void BOARD_BootClockFRO30M(void)
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{
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/*!< Set up the clock sources */
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/*!< Set up FRO */
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POWER_DisablePD(kPDRUNCFG_PD_FRO_OUT); /*!< Ensure FRO is on */
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POWER_DisablePD(kPDRUNCFG_PD_FRO); /*!< Ensure FRO is on */
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CLOCK_SetFroOscFreq(kCLOCK_FroOscOut30M); /*!< Set up FRO freq */
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CLOCK_SetFroOutClkSrc(kCLOCK_FroSrcFroOsc); /*!< Set FRO clock source */
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POWER_DisablePD(kPDRUNCFG_PD_SYSOSC); /*!< Ensure Main osc is on */
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CLOCK_Select(kEXT_Clk_From_SysOsc); /*!<select external clock source to sys_osc */
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CLOCK_SetMainClkSrc(kCLOCK_MainClkSrcFro); /*!< select fro for main clock */
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CLOCK_SetCoreSysClkDiv(1U);
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/*!< Set SystemCoreClock variable. */
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SystemCoreClock = BOARD_BOOTCLOCKFRO30M_CORE_CLOCK;
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}
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/*******************************************************************************
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******************** Configuration BOARD_BootClockPll24M **********************
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******************************************************************************/
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/* TEXT BELOW IS USED AS SETTING FOR TOOLS *************************************
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!!Configuration
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name: BOARD_BootClockPll24M
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outputs:
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- {id: FROHF_clock.outFreq, value: 24 MHz}
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- {id: LowPower_clock.outFreq, value: 10 kHz}
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- {id: SYSPLL_clock.outFreq, value: 24 MHz}
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- {id: System_clock.outFreq, value: 24 MHz}
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- {id: divto750k_clock.outFreq, value: 750 kHz}
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settings:
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- {id: SYSCON.ADCCLKSEL.sel, value: NO_CLOCK}
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- {id: SYSCON.CLKOUTSEL.sel, value: NO_CLOCK}
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- {id: SYSCON.FRG0CLKSEL.sel, value: NO_CLOCK}
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- {id: SYSCON.FRG1CLKSEL.sel, value: NO_CLOCK}
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- {id: SYSCON.FRO_DIRECT.sel, value: SYSCON.fro_osc}
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- {id: SYSCON.MAINCLKPLLSEL.sel, value: SYSCON.PLL}
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- {id: SYSCON.SCTCLKSEL.sel, value: NO_CLOCK}
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sources:
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- {id: SYSCON.fro_osc.outFreq, value: 24 MHz}
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* BE CAREFUL MODIFYING THIS COMMENT - IT IS YAML SETTINGS FOR TOOLS **********/
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/*******************************************************************************
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* Variables for BOARD_BootClockPll24M configuration
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******************************************************************************/
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/*******************************************************************************
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* Code for BOARD_BootClockPll24M configuration
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******************************************************************************/
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void BOARD_BootClockPll24M(void)
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{
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/*!< Set up the clock sources */
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/*!< Set up FRO */
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POWER_DisablePD(kPDRUNCFG_PD_FRO_OUT); /*!< Ensure FRO is on */
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POWER_DisablePD(kPDRUNCFG_PD_FRO); /*!< Ensure FRO is on */
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CLOCK_SetFroOscFreq(kCLOCK_FroOscOut24M); /*!< Set up FRO freq */
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CLOCK_SetFroOutClkSrc(kCLOCK_FroSrcFroOsc); /*!< Set FRO clock source */
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POWER_DisablePD(kPDRUNCFG_PD_SYSOSC); /*!< Ensure Main osc is on */
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CLOCK_Select(kEXT_Clk_From_SysOsc); /*!<select external clock source to sys_osc */
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clock_sys_pll_t config;
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config.src = kCLOCK_SysPllSrcFRO; /*!< select FRO for SYSPLL */
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config.targetFreq = 24000000U; /*!< set pll target freq */
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CLOCK_InitSystemPll(&config); /*!< set parameters */
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CLOCK_SetMainClkSrc(kCLOCK_MainClkSrcSysPll); /*!< select syspll for main clock */
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CLOCK_SetCoreSysClkDiv(1U);
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/*!< Set SystemCoreClock variable. */
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SystemCoreClock = BOARD_BOOTCLOCKPLL24M_CORE_CLOCK;
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}
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