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/*
* Copyright (c) 2015, Freescale Semiconductor, Inc.
* Copyright 2016-2017,2019 NXP
* All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
/***********************************************************************************************************************
* 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 set up clock using clock driver functions:
*
* 1. Setup clock sources.
*
* 2. Setup voltage for the fastest of the clock outputs
*
* 3. Set up wait states of the flash.
*
* 4. Set up all dividers.
*
* 5. Set up all selectors to provide selected clocks.
*/
/* clang-format off */
/* TEXT BELOW IS USED AS SETTING FOR TOOLS *************************************
!!GlobalInfo
product: Clocks v7.0
processor: LPC54018
package_id: LPC54018JET180
mcu_data: ksdk2_0
processor_version: 0.7.1
* BE CAREFUL MODIFYING THIS COMMENT - IT IS YAML SETTINGS FOR TOOLS **********/
/* clang-format on */
#include "fsl_power.h"
#include "fsl_clock.h"
#include "clock_config.h"
/*******************************************************************************
* Definitions
******************************************************************************/
/*******************************************************************************
* Variables
******************************************************************************/
/* System clock frequency. */
extern uint32_t SystemCoreClock;
/*******************************************************************************
************************ BOARD_InitBootClocks function ************************
******************************************************************************/
void BOARD_InitBootClocks(void)
{
BOARD_BootClockPLL180M();
}
/*******************************************************************************
******************** Configuration BOARD_BootClockFRO12M **********************
******************************************************************************/
/* clang-format off */
/* TEXT BELOW IS USED AS SETTING FOR TOOLS *************************************
!!Configuration
name: BOARD_BootClockFRO12M
outputs:
- {id: FRO12M_clock.outFreq, value: 12 MHz}
- {id: FROHF_clock.outFreq, value: 48 MHz}
- {id: MAIN_clock.outFreq, value: 12 MHz}
- {id: System_clock.outFreq, value: 12 MHz}
settings:
- {id: SYSCON.EMCCLKDIV.scale, value: '1', locked: true}
* BE CAREFUL MODIFYING THIS COMMENT - IT IS YAML SETTINGS FOR TOOLS **********/
/* clang-format on */
/*******************************************************************************
* Variables for BOARD_BootClockFRO12M configuration
******************************************************************************/
/*******************************************************************************
* Code for BOARD_BootClockFRO12M configuration
******************************************************************************/
void BOARD_BootClockFRO12M(void)
{
/*!< Set up the clock sources */
/*!< Set up FRO */
POWER_DisablePD(kPDRUNCFG_PD_FRO_EN); /*!< Ensure FRO is on */
CLOCK_AttachClk(kFRO12M_to_MAIN_CLK); /*!< Switch to FRO 12MHz first to ensure we can change voltage without
accidentally being below the voltage for current speed */
/*!< Need to make sure ROM and OTP has power(PDRUNCFG0[17,29]= 0U)
before calling this API since this API is implemented in ROM code */
CLOCK_SetupFROClocking(12000000U); /*!< Set up FRO to the 12 MHz, just for sure */
POWER_SetVoltageForFreq(
12000000U); /*!< Set voltage for the one of the fastest clock outputs: System clock output */
/*!< Set up dividers */
CLOCK_SetClkDiv(kCLOCK_DivAhbClk, 1U, false); /*!< Reset divider counter and set divider to value 1 */
/*!< Set up clock selectors - Attach clocks to the peripheries */
CLOCK_AttachClk(kFRO12M_to_MAIN_CLK); /*!< Switch MAIN_CLK to FRO12M */
/* Set SystemCoreClock variable. */
SystemCoreClock = BOARD_BOOTCLOCKFRO12M_CORE_CLOCK;
}
/*******************************************************************************
******************* Configuration BOARD_BootClockFROHF48M *********************
******************************************************************************/
/* clang-format off */
/* TEXT BELOW IS USED AS SETTING FOR TOOLS *************************************
!!Configuration
name: BOARD_BootClockFROHF48M
outputs:
- {id: FRO12M_clock.outFreq, value: 12 MHz}
- {id: FROHF_clock.outFreq, value: 48 MHz}
- {id: MAIN_clock.outFreq, value: 48 MHz}
- {id: System_clock.outFreq, value: 48 MHz}
settings:
- {id: SYSCON.MAINCLKSELA.sel, value: SYSCON.fro_hf}
* BE CAREFUL MODIFYING THIS COMMENT - IT IS YAML SETTINGS FOR TOOLS **********/
/* clang-format on */
/*******************************************************************************
* Variables for BOARD_BootClockFROHF48M configuration
******************************************************************************/
/*******************************************************************************
* Code for BOARD_BootClockFROHF48M configuration
******************************************************************************/
void BOARD_BootClockFROHF48M(void)
{
/*!< Set up the clock sources */
/*!< Set up FRO */
POWER_DisablePD(kPDRUNCFG_PD_FRO_EN); /*!< Ensure FRO is on */
CLOCK_AttachClk(kFRO12M_to_MAIN_CLK); /*!< Switch to FRO 12MHz first to ensure we can change voltage without
accidentally being below the voltage for current speed */
POWER_SetVoltageForFreq(
48000000U); /*!< Set voltage for the one of the fastest clock outputs: System clock output */
/*!< Need to make sure ROM and OTP has power(PDRUNCFG0[17,29]= 0U)
before calling this API since this API is implemented in ROM code */
CLOCK_SetupFROClocking(48000000U); /*!< Set up high frequency FRO output to selected frequency */
/*!< Set up dividers */
CLOCK_SetClkDiv(kCLOCK_DivAhbClk, 1U, false); /*!< Reset divider counter and set divider to value 1 */
/*!< Set up clock selectors - Attach clocks to the peripheries */
CLOCK_AttachClk(kFRO_HF_to_MAIN_CLK); /*!< Switch MAIN_CLK to FRO_HF */
/* Set SystemCoreClock variable. */
SystemCoreClock = BOARD_BOOTCLOCKFROHF48M_CORE_CLOCK;
}
/*******************************************************************************
******************* Configuration BOARD_BootClockFROHF96M *********************
******************************************************************************/
/* clang-format off */
/* TEXT BELOW IS USED AS SETTING FOR TOOLS *************************************
!!Configuration
name: BOARD_BootClockFROHF96M
outputs:
- {id: FRO12M_clock.outFreq, value: 12 MHz}
- {id: FROHF_clock.outFreq, value: 96 MHz}
- {id: MAIN_clock.outFreq, value: 96 MHz}
- {id: System_clock.outFreq, value: 96 MHz}
settings:
- {id: SYSCON.MAINCLKSELA.sel, value: SYSCON.fro_hf}
sources:
- {id: SYSCON.fro_hf.outFreq, value: 96 MHz}
* BE CAREFUL MODIFYING THIS COMMENT - IT IS YAML SETTINGS FOR TOOLS **********/
/* clang-format on */
/*******************************************************************************
* Variables for BOARD_BootClockFROHF96M configuration
******************************************************************************/
/*******************************************************************************
* Code for BOARD_BootClockFROHF96M configuration
******************************************************************************/
void BOARD_BootClockFROHF96M(void)
{
/*!< Set up the clock sources */
/*!< Set up FRO */
POWER_DisablePD(kPDRUNCFG_PD_FRO_EN); /*!< Ensure FRO is on */
CLOCK_AttachClk(kFRO12M_to_MAIN_CLK); /*!< Switch to FRO 12MHz first to ensure we can change voltage without
accidentally being below the voltage for current speed */
POWER_SetVoltageForFreq(
96000000U); /*!< Set voltage for the one of the fastest clock outputs: System clock output */
/*!< Need to make sure ROM and OTP has power(PDRUNCFG0[17,29]= 0U)
before calling this API since this API is implemented in ROM code */
CLOCK_SetupFROClocking(96000000U); /*!< Set up high frequency FRO output to selected frequency */
/*!< Set up dividers */
CLOCK_SetClkDiv(kCLOCK_DivAhbClk, 1U, false); /*!< Reset divider counter and set divider to value 1 */
/*!< Set up clock selectors - Attach clocks to the peripheries */
CLOCK_AttachClk(kFRO_HF_to_MAIN_CLK); /*!< Switch MAIN_CLK to FRO_HF */
/* Set SystemCoreClock variable. */
SystemCoreClock = BOARD_BOOTCLOCKFROHF96M_CORE_CLOCK;
}
/*******************************************************************************
******************** Configuration BOARD_BootClockPLL180M *********************
******************************************************************************/
/* clang-format off */
/* TEXT BELOW IS USED AS SETTING FOR TOOLS *************************************
!!Configuration
name: BOARD_BootClockPLL180M
called_from_default_init: true
outputs:
- {id: FRO12M_clock.outFreq, value: 12 MHz}
- {id: FROHF_clock.outFreq, value: 96 MHz}
- {id: MAIN_clock.outFreq, value: 180 MHz}
- {id: SYSPLL_clock.outFreq, value: 180 MHz}
- {id: System_clock.outFreq, value: 180 MHz}
- {id: USB0_clock.outFreq, value: 96 MHz}
settings:
- {id: SYSCON.MAINCLKSELB.sel, value: SYSCON.PLL_BYPASS}
- {id: SYSCON.M_MULT.scale, value: '30', locked: true}
- {id: SYSCON.N_DIV.scale, value: '1', locked: true}
- {id: SYSCON.PDEC.scale, value: '2', locked: true}
- {id: SYSCON.USB0CLKSEL.sel, value: SYSCON.fro_hf}
- {id: SYSCON_PDRUNCFG0_PDEN_SYS_PLL_CFG, value: Power_up}
sources:
- {id: SYSCON._clk_in.outFreq, value: 12 MHz, enabled: true}
- {id: SYSCON.fro_hf.outFreq, value: 96 MHz}
* BE CAREFUL MODIFYING THIS COMMENT - IT IS YAML SETTINGS FOR TOOLS **********/
/* clang-format on */
/*******************************************************************************
* Variables for BOARD_BootClockPLL180M configuration
******************************************************************************/
/*******************************************************************************
* Code for BOARD_BootClockPLL180M configuration
******************************************************************************/
void BOARD_BootClockPLL180M(void)
{
/*!< Set up the clock sources */
/*!< Set up FRO */
POWER_DisablePD(kPDRUNCFG_PD_FRO_EN); /*!< Ensure FRO is on */
CLOCK_AttachClk(kFRO12M_to_MAIN_CLK); /*!< Switch to FRO 12MHz first to ensure we can change voltage without
accidentally being below the voltage for current speed */
POWER_DisablePD(kPDRUNCFG_PD_SYS_OSC); /*!< Enable System Oscillator Power */
SYSCON->SYSOSCCTRL = ((SYSCON->SYSOSCCTRL & ~SYSCON_SYSOSCCTRL_FREQRANGE_MASK) |
SYSCON_SYSOSCCTRL_FREQRANGE(0U)); /*!< Set system oscillator range */
POWER_SetVoltageForFreq(
180000000U); /*!< Set voltage for the one of the fastest clock outputs: System clock output */
/*!< Set up SYS PLL */
const pll_setup_t pllSetup = {
.pllctrl = SYSCON_SYSPLLCTRL_SELI(32U) | SYSCON_SYSPLLCTRL_SELP(16U) | SYSCON_SYSPLLCTRL_SELR(0U),
.pllmdec = (SYSCON_SYSPLLMDEC_MDEC(8191U)),
.pllndec = (SYSCON_SYSPLLNDEC_NDEC(770U)),
.pllpdec = (SYSCON_SYSPLLPDEC_PDEC(98U)),
.pllRate = 180000000U,
.flags = PLL_SETUPFLAG_WAITLOCK | PLL_SETUPFLAG_POWERUP};
CLOCK_AttachClk(kFRO12M_to_SYS_PLL); /*!< Set sys pll clock source*/
CLOCK_SetPLLFreq(&pllSetup); /*!< Configure PLL to the desired value */
/*!< Need to make sure ROM and OTP has power(PDRUNCFG0[17,29]= 0U)
before calling this API since this API is implemented in ROM code */
CLOCK_SetupFROClocking(96000000U); /*!< Set up high frequency FRO output to selected frequency */
/*!< Set up dividers */
CLOCK_SetClkDiv(kCLOCK_DivAhbClk, 1U, false); /*!< Reset divider counter and set divider to value 1 */
CLOCK_SetClkDiv(kCLOCK_DivUsb0Clk, 0U, true); /*!< Reset USB0CLKDIV divider counter and halt it */
CLOCK_SetClkDiv(kCLOCK_DivUsb0Clk, 1U, false); /*!< Set USB0CLKDIV divider to value 1 */
/*!< Set up clock selectors - Attach clocks to the peripheries */
CLOCK_AttachClk(kSYS_PLL_to_MAIN_CLK); /*!< Switch MAIN_CLK to SYS_PLL */
CLOCK_AttachClk(kFRO_HF_to_USB0_CLK); /*!< Switch USB0_CLK to FRO_HF */
SYSCON->MAINCLKSELA =
((SYSCON->MAINCLKSELA & ~SYSCON_MAINCLKSELA_SEL_MASK) |
SYSCON_MAINCLKSELA_SEL(0U)); /*!< Switch MAINCLKSELA to FRO12M even it is not used for MAINCLKSELB */
/* Set SystemCoreClock variable. */
SystemCoreClock = BOARD_BOOTCLOCKPLL180M_CORE_CLOCK;
}
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