/* * Copyright 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 setup clock using clock driver functions: * * 1. Call CLOCK_InitXXX() to configure corresponding SCG clock source. * Note: The clock could not be set when it is being used as system clock. * In default out of reset, the CPU is clocked from FIRC(IRC48M), * so before setting FIRC, change to use another avaliable clock source. * * 2. Call CLOCK_SetXtal0Freq() to set XTAL0 frequency based on board settings. * * 3. Call CLOCK_SetXxxModeSysClkConfig() to set SCG mode for Xxx run mode. * Wait until the system clock source is changed to target source. * * 4. If power mode change is needed, call SMC_SetPowerModeProtection() to allow * corresponding power mode and SMC_SetPowerModeXxx() to change to Xxx mode. * Supported run mode and clock restrictions could be found in Reference Manual. */ /* clang-format off */ /* TEXT BELOW IS USED AS SETTING FOR TOOLS ************************************* !!GlobalInfo product: Clocks v5.0 processor: K32L3A60xxx mcu_data: ksdk2_0 processor_version: 0.0.1 * BE CAREFUL MODIFYING THIS COMMENT - IT IS YAML SETTINGS FOR TOOLS **********/ /* clang-format on */ #include "clock_config.h" /******************************************************************************* * Definitions ******************************************************************************/ #define SCG_LPFLL_DISABLE 0U /*!< LPFLL clock disabled */ /******************************************************************************* * Variables ******************************************************************************/ /* System clock frequency. */ extern uint32_t SystemCoreClock; /******************************************************************************* * Code ******************************************************************************/ #ifndef SDK_SECONDARY_CORE /*FUNCTION********************************************************************** * * Function Name : CLOCK_CONFIG_FircSafeConfig * Description : This function is used to safely configure FIRC clock. * In default out of reset, the CPU is clocked from FIRC(IRC48M). * Before setting FIRC, change to use SIRC as system clock, * then configure FIRC. * Param fircConfig : FIRC configuration. * *END**************************************************************************/ static void CLOCK_CONFIG_FircSafeConfig(const scg_firc_config_t *fircConfig) { scg_sys_clk_config_t curConfig; const scg_sirc_config_t scgSircConfig = {.enableMode = kSCG_SircEnable, .div1 = kSCG_AsyncClkDisable, .div2 = kSCG_AsyncClkDivBy2, .range = kSCG_SircRangeHigh}; scg_sys_clk_config_t sysClkSafeConfigSource = { .divSlow = kSCG_SysClkDivBy4, /* Slow clock divider. */ .divCore = kSCG_SysClkDivBy1, /* Core clock divider. */ .src = kSCG_SysClkSrcSirc /* System clock source. */ }; /* Init Sirc */ CLOCK_InitSirc(&scgSircConfig); /* Change to use SIRC as system clock source to prepare to change FIRCCFG register */ CLOCK_SetRunModeSysClkConfig(&sysClkSafeConfigSource); /* Wait for clock source switch finished */ do { CLOCK_GetCurSysClkConfig(&curConfig); } while (curConfig.src != sysClkSafeConfigSource.src); /* Init Firc */ CLOCK_InitFirc(fircConfig); } #endif /******************************************************************************* ************************ 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: 48 MHz} - {id: Core_clock.outFreq, value: 48 MHz} - {id: LPO_CLK.outFreq, value: 1 kHz} - {id: Platform_clock.outFreq, value: 48 MHz} - {id: Slow_clock.outFreq, value: 24 MHz} - {id: System_clock.outFreq, value: 48 MHz} * BE CAREFUL MODIFYING THIS COMMENT - IT IS YAML SETTINGS FOR TOOLS **********/ /* clang-format on */ /******************************************************************************* * Variables for BOARD_BootClockRUN configuration ******************************************************************************/ const scg_sys_clk_config_t g_sysClkConfig_BOARD_BootClockRUN = { .divSlow = kSCG_SysClkDivBy2, /* Slow Clock Divider: divided by 2 */ .divBus = kSCG_SysClkDivBy1, /* Bus Clock Divider: divided by 1 */ .divExt = kSCG_SysClkDivBy1, /* External Clock Divider: divided by 1 */ .divCore = kSCG_SysClkDivBy1, /* Core Clock Divider: divided by 1 */ .src = kSCG_SysClkSrcFirc, /* Fast IRC is selected as System Clock Source */ }; const scg_sirc_config_t g_scgSircConfig_BOARD_BootClockRUN = { .enableMode = kSCG_SircEnable | kSCG_SircEnableInLowPower,/* Enable SIRC clock, Enable SIRC in low power mode */ .div1 = kSCG_AsyncClkDisable, /* Slow IRC Clock Divider 1: Clock output is disabled */ .div2 = kSCG_AsyncClkDisable, /* Slow IRC Clock Divider 2: Clock output is disabled */ .div3 = kSCG_AsyncClkDisable, /* Slow IRC Clock Divider 3: Clock output is disabled */ .range = kSCG_SircRangeHigh, /* Slow IRC high range clock (8 MHz) */ }; const scg_firc_config_t g_scgFircConfig_BOARD_BootClockRUN = { .enableMode = kSCG_FircEnable, /* Enable FIRC clock */ .div1 = kSCG_AsyncClkDisable, /* Fast IRC Clock Divider 1: Clock output is disabled */ .div2 = kSCG_AsyncClkDisable, /* Fast IRC Clock Divider 2: Clock output is disabled */ .div3 = kSCG_AsyncClkDisable, /* Fast IRC Clock Divider 3: Clock output is disabled */ .range = kSCG_FircRange48M, /* Fast IRC is trimmed to 48MHz */ .trimConfig = NULL, }; const scg_lpfll_config_t g_scgLpFllConfig_BOARD_BootClockRUN = { .enableMode = SCG_LPFLL_DISABLE, /* LPFLL clock disabled */ .div1 = kSCG_AsyncClkDisable, /* Low Power FLL Clock Divider 1: Clock output is disabled */ .div2 = kSCG_AsyncClkDisable, /* Low Power FLL Clock Divider 2: Clock output is disabled */ .div3 = kSCG_AsyncClkDisable, /* Low Power FLL Clock Divider 3: Clock output is disabled */ .range = kSCG_LpFllRange48M, /* LPFLL is trimmed to 48MHz */ .trimConfig = NULL, }; /******************************************************************************* * Code for BOARD_BootClockRUN configuration ******************************************************************************/ void BOARD_BootClockRUN(void) { #ifndef SDK_SECONDARY_CORE scg_sys_clk_config_t curConfig; /* Init FIRC */ CLOCK_CONFIG_FircSafeConfig(&g_scgFircConfig_BOARD_BootClockRUN); /* Set SCG to FIRC mode. */ CLOCK_SetRunModeSysClkConfig(&g_sysClkConfig_BOARD_BootClockRUN); /* Wait for clock source switch finished */ do { CLOCK_GetCurSysClkConfig(&curConfig); } while (curConfig.src != g_sysClkConfig_BOARD_BootClockRUN.src); /* Init SIRC */ CLOCK_InitSirc(&g_scgSircConfig_BOARD_BootClockRUN); /* Init LPFLL */ CLOCK_InitLpFll(&g_scgLpFllConfig_BOARD_BootClockRUN); /* Set SystemCoreClock variable. */ SystemCoreClock = BOARD_BOOTCLOCKRUN_CORE_CLOCK; #endif }