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rt-thread-official/bsp/frdm-k64f/device/MK64F12/fsl_clock.h

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/*
* Copyright (c) 2015, Freescale Semiconductor, Inc.
* Copyright (c) 2016 - 2017 , NXP
* All rights reserved.
*
* 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 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.
*/
#ifndef _FSL_CLOCK_H_
#define _FSL_CLOCK_H_
#include "fsl_common.h"
/*! @addtogroup clock */
/*! @{ */
/*! @file */
/*******************************************************************************
* Configurations
******************************************************************************/
/*! @brief Configures whether to check a parameter in a function.
*
* Some MCG settings must be changed with conditions, for example:
* 1. MCGIRCLK settings, such as the source, divider, and the trim value should not change when
* MCGIRCLK is used as a system clock source.
* 2. MCG_C7[OSCSEL] should not be changed when the external reference clock is used
* as a system clock source. For example, in FBE/BLPE/PBE modes.
* 3. The users should only switch between the supported clock modes.
*
* MCG functions check the parameter and MCG status before setting, if not allowed
* to change, the functions return error. The parameter checking increases code size,
* if code size is a critical requirement, change #MCG_CONFIG_CHECK_PARAM to 0 to
* disable parameter checking.
*/
#ifndef MCG_CONFIG_CHECK_PARAM
#define MCG_CONFIG_CHECK_PARAM 0U
#endif
/*! @brief Configure whether driver controls clock
*
* When set to 0, peripheral drivers will enable clock in initialize function
* and disable clock in de-initialize function. When set to 1, peripheral
* driver will not control the clock, application could contol the clock out of
* the driver.
*
* @note All drivers share this feature switcher. If it is set to 1, application
* should handle clock enable and disable for all drivers.
*/
#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL))
#define FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL 0
#endif
/*******************************************************************************
* Definitions
******************************************************************************/
/*! @name Driver version */
/*@{*/
/*! @brief CLOCK driver version 2.2.1. */
#define FSL_CLOCK_DRIVER_VERSION (MAKE_VERSION(2, 2, 1))
/*@}*/
/*! @brief External XTAL0 (OSC0) clock frequency.
*
* The XTAL0/EXTAL0 (OSC0) clock frequency in Hz. When the clock is set up, use the
* function CLOCK_SetXtal0Freq to set the value in the clock driver. For example,
* if XTAL0 is 8 MHz:
* @code
* CLOCK_InitOsc0(...); // Set up the OSC0
* CLOCK_SetXtal0Freq(80000000); // Set the XTAL0 value to the clock driver.
* @endcode
*
* This is important for the multicore platforms where only one core needs to set up the
* OSC0 using the CLOCK_InitOsc0. All other cores need to call the CLOCK_SetXtal0Freq
* to get a valid clock frequency.
*/
extern uint32_t g_xtal0Freq;
/*! @brief External XTAL32/EXTAL32/RTC_CLKIN clock frequency.
*
* The XTAL32/EXTAL32/RTC_CLKIN clock frequency in Hz. When the clock is set up, use the
* function CLOCK_SetXtal32Freq to set the value in the clock driver.
*
* This is important for the multicore platforms where only one core needs to set up
* the clock. All other cores need to call the CLOCK_SetXtal32Freq
* to get a valid clock frequency.
*/
extern uint32_t g_xtal32Freq;
/*! @brief IRC48M clock frequency in Hz. */
#define MCG_INTERNAL_IRC_48M 48000000U
#if (defined(OSC) && !(defined(OSC0)))
#define OSC0 OSC
#endif
/*! @brief Clock ip name array for DMAMUX. */
#define DMAMUX_CLOCKS \
{ \
kCLOCK_Dmamux0 \
}
/*! @brief Clock ip name array for RTC. */
#define RTC_CLOCKS \
{ \
kCLOCK_Rtc0 \
}
/*! @brief Clock ip name array for ENET. */
#define ENET_CLOCKS \
{ \
kCLOCK_Enet0 \
}
/*! @brief Clock ip name array for PORT. */
#define PORT_CLOCKS \
{ \
kCLOCK_PortA, kCLOCK_PortB, kCLOCK_PortC, kCLOCK_PortD, kCLOCK_PortE \
}
/*! @brief Clock ip name array for SAI. */
#define SAI_CLOCKS \
{ \
kCLOCK_Sai0 \
}
/*! @brief Clock ip name array for FLEXBUS. */
#define FLEXBUS_CLOCKS \
{ \
kCLOCK_Flexbus0 \
}
/*! @brief Clock ip name array for EWM. */
#define EWM_CLOCKS \
{ \
kCLOCK_Ewm0 \
}
/*! @brief Clock ip name array for PIT. */
#define PIT_CLOCKS \
{ \
kCLOCK_Pit0 \
}
/*! @brief Clock ip name array for DSPI. */
#define DSPI_CLOCKS \
{ \
kCLOCK_Spi0, kCLOCK_Spi1, kCLOCK_Spi2 \
}
/*! @brief Clock ip name array for LPTMR. */
#define LPTMR_CLOCKS \
{ \
kCLOCK_Lptmr0 \
}
/*! @brief Clock ip name array for SDHC. */
#define SDHC_CLOCKS \
{ \
kCLOCK_Sdhc0 \
}
/*! @brief Clock ip name array for FTM. */
#define FTM_CLOCKS \
{ \
kCLOCK_Ftm0, kCLOCK_Ftm1, kCLOCK_Ftm2, kCLOCK_Ftm3 \
}
/*! @brief Clock ip name array for EDMA. */
#define EDMA_CLOCKS \
{ \
kCLOCK_Dma0 \
}
/*! @brief Clock ip name array for FLEXCAN. */
#define FLEXCAN_CLOCKS \
{ \
kCLOCK_Flexcan0 \
}
/*! @brief Clock ip name array for DAC. */
#define DAC_CLOCKS \
{ \
kCLOCK_Dac0, kCLOCK_Dac1 \
}
/*! @brief Clock ip name array for ADC16. */
#define ADC16_CLOCKS \
{ \
kCLOCK_Adc0, kCLOCK_Adc1 \
}
/*! @brief Clock ip name array for MPU. */
#define SYSMPU_CLOCKS \
{ \
kCLOCK_Sysmpu0 \
}
/*! @brief Clock ip name array for VREF. */
#define VREF_CLOCKS \
{ \
kCLOCK_Vref0 \
}
/*! @brief Clock ip name array for CMT. */
#define CMT_CLOCKS \
{ \
kCLOCK_Cmt0 \
}
/*! @brief Clock ip name array for UART. */
#define UART_CLOCKS \
{ \
kCLOCK_Uart0, kCLOCK_Uart1, kCLOCK_Uart2, kCLOCK_Uart3, kCLOCK_Uart4, kCLOCK_Uart5 \
}
/*! @brief Clock ip name array for RNGA. */
#define RNGA_CLOCKS \
{ \
kCLOCK_Rnga0 \
}
/*! @brief Clock ip name array for CRC. */
#define CRC_CLOCKS \
{ \
kCLOCK_Crc0 \
}
/*! @brief Clock ip name array for I2C. */
#define I2C_CLOCKS \
{ \
kCLOCK_I2c0, kCLOCK_I2c1, kCLOCK_I2c2 \
}
/*! @brief Clock ip name array for PDB. */
#define PDB_CLOCKS \
{ \
kCLOCK_Pdb0 \
}
/*! @brief Clock ip name array for FTF. */
#define FTF_CLOCKS \
{ \
kCLOCK_Ftf0 \
}
/*! @brief Clock ip name array for CMP. */
#define CMP_CLOCKS \
{ \
kCLOCK_Cmp0, kCLOCK_Cmp1, kCLOCK_Cmp2 \
}
/*!
* @brief LPO clock frequency.
*/
#define LPO_CLK_FREQ 1000U
/*! @brief Peripherals clock source definition. */
#define SYS_CLK kCLOCK_CoreSysClk
#define BUS_CLK kCLOCK_BusClk
#define I2C0_CLK_SRC BUS_CLK
#define I2C1_CLK_SRC BUS_CLK
#define I2C2_CLK_SRC BUS_CLK
#define DSPI0_CLK_SRC BUS_CLK
#define DSPI1_CLK_SRC BUS_CLK
#define DSPI2_CLK_SRC BUS_CLK
#define UART0_CLK_SRC SYS_CLK
#define UART1_CLK_SRC SYS_CLK
#define UART2_CLK_SRC BUS_CLK
#define UART3_CLK_SRC BUS_CLK
#define UART4_CLK_SRC BUS_CLK
#define UART5_CLK_SRC BUS_CLK
/*! @brief Clock name used to get clock frequency. */
typedef enum _clock_name
{
/* ----------------------------- System layer clock -------------------------------*/
kCLOCK_CoreSysClk, /*!< Core/system clock */
kCLOCK_PlatClk, /*!< Platform clock */
kCLOCK_BusClk, /*!< Bus clock */
kCLOCK_FlexBusClk, /*!< FlexBus clock */
kCLOCK_FlashClk, /*!< Flash clock */
kCLOCK_FastPeriphClk, /*!< Fast peripheral clock */
kCLOCK_PllFllSelClk, /*!< The clock after SIM[PLLFLLSEL]. */
/* ---------------------------------- OSC clock -----------------------------------*/
kCLOCK_Er32kClk, /*!< External reference 32K clock (ERCLK32K) */
kCLOCK_Osc0ErClk, /*!< OSC0 external reference clock (OSC0ERCLK) */
kCLOCK_Osc1ErClk, /*!< OSC1 external reference clock (OSC1ERCLK) */
kCLOCK_Osc0ErClkUndiv, /*!< OSC0 external reference undivided clock(OSC0ERCLK_UNDIV). */
/* ----------------------------- MCG and MCG-Lite clock ---------------------------*/
kCLOCK_McgFixedFreqClk, /*!< MCG fixed frequency clock (MCGFFCLK) */
kCLOCK_McgInternalRefClk, /*!< MCG internal reference clock (MCGIRCLK) */
kCLOCK_McgFllClk, /*!< MCGFLLCLK */
kCLOCK_McgPll0Clk, /*!< MCGPLL0CLK */
kCLOCK_McgPll1Clk, /*!< MCGPLL1CLK */
kCLOCK_McgExtPllClk, /*!< EXT_PLLCLK */
kCLOCK_McgPeriphClk, /*!< MCG peripheral clock (MCGPCLK) */
kCLOCK_McgIrc48MClk, /*!< MCG IRC48M clock */
/* --------------------------------- Other clock ----------------------------------*/
kCLOCK_LpoClk, /*!< LPO clock */
} clock_name_t;
/*! @brief USB clock source definition. */
typedef enum _clock_usb_src
{
kCLOCK_UsbSrcPll0 = SIM_SOPT2_USBSRC(1U) | SIM_SOPT2_PLLFLLSEL(1U), /*!< Use PLL0. */
kCLOCK_UsbSrcIrc48M = SIM_SOPT2_USBSRC(1U) | SIM_SOPT2_PLLFLLSEL(3U), /*!< Use IRC48M. */
kCLOCK_UsbSrcExt = SIM_SOPT2_USBSRC(0U) /*!< Use USB_CLKIN. */
} clock_usb_src_t;
/*------------------------------------------------------------------------------
clock_gate_t definition:
31 16 0
-----------------------------------------------------------------
| SIM_SCGC register offset | control bit offset in SCGC |
-----------------------------------------------------------------
For example, the SDHC clock gate is controlled by SIM_SCGC3[17], the
SIM_SCGC3 offset in SIM is 0x1030, then kCLOCK_GateSdhc0 is defined as
kCLOCK_GateSdhc0 = (0x1030 << 16) | 17;
------------------------------------------------------------------------------*/
#define CLK_GATE_REG_OFFSET_SHIFT 16U
#define CLK_GATE_REG_OFFSET_MASK 0xFFFF0000U
#define CLK_GATE_BIT_SHIFT_SHIFT 0U
#define CLK_GATE_BIT_SHIFT_MASK 0x0000FFFFU
#define CLK_GATE_DEFINE(reg_offset, bit_shift) \
((((reg_offset) << CLK_GATE_REG_OFFSET_SHIFT) & CLK_GATE_REG_OFFSET_MASK) | \
(((bit_shift) << CLK_GATE_BIT_SHIFT_SHIFT) & CLK_GATE_BIT_SHIFT_MASK))
#define CLK_GATE_ABSTRACT_REG_OFFSET(x) (((x)&CLK_GATE_REG_OFFSET_MASK) >> CLK_GATE_REG_OFFSET_SHIFT)
#define CLK_GATE_ABSTRACT_BITS_SHIFT(x) (((x)&CLK_GATE_BIT_SHIFT_MASK) >> CLK_GATE_BIT_SHIFT_SHIFT)
/*! @brief Clock gate name used for CLOCK_EnableClock/CLOCK_DisableClock. */
typedef enum _clock_ip_name
{
kCLOCK_IpInvalid = 0U,
kCLOCK_I2c2 = CLK_GATE_DEFINE(0x1028U, 6U),
kCLOCK_Uart4 = CLK_GATE_DEFINE(0x1028U, 10U),
kCLOCK_Uart5 = CLK_GATE_DEFINE(0x1028U, 11U),
kCLOCK_Enet0 = CLK_GATE_DEFINE(0x102CU, 0U),
kCLOCK_Dac0 = CLK_GATE_DEFINE(0x102CU, 12U),
kCLOCK_Dac1 = CLK_GATE_DEFINE(0x102CU, 13U),
kCLOCK_Spi2 = CLK_GATE_DEFINE(0x1030U, 12U),
kCLOCK_Sdhc0 = CLK_GATE_DEFINE(0x1030U, 17U),
kCLOCK_Ftm3 = CLK_GATE_DEFINE(0x1030U, 25U),
kCLOCK_Adc1 = CLK_GATE_DEFINE(0x1030U, 27U),
kCLOCK_Ewm0 = CLK_GATE_DEFINE(0x1034U, 1U),
kCLOCK_Cmt0 = CLK_GATE_DEFINE(0x1034U, 2U),
kCLOCK_I2c0 = CLK_GATE_DEFINE(0x1034U, 6U),
kCLOCK_I2c1 = CLK_GATE_DEFINE(0x1034U, 7U),
kCLOCK_Uart0 = CLK_GATE_DEFINE(0x1034U, 10U),
kCLOCK_Uart1 = CLK_GATE_DEFINE(0x1034U, 11U),
kCLOCK_Uart2 = CLK_GATE_DEFINE(0x1034U, 12U),
kCLOCK_Uart3 = CLK_GATE_DEFINE(0x1034U, 13U),
kCLOCK_Usbfs0 = CLK_GATE_DEFINE(0x1034U, 18U),
kCLOCK_Cmp0 = CLK_GATE_DEFINE(0x1034U, 19U),
kCLOCK_Cmp1 = CLK_GATE_DEFINE(0x1034U, 19U),
kCLOCK_Cmp2 = CLK_GATE_DEFINE(0x1034U, 19U),
kCLOCK_Vref0 = CLK_GATE_DEFINE(0x1034U, 20U),
kCLOCK_Lptmr0 = CLK_GATE_DEFINE(0x1038U, 0U),
kCLOCK_PortA = CLK_GATE_DEFINE(0x1038U, 9U),
kCLOCK_PortB = CLK_GATE_DEFINE(0x1038U, 10U),
kCLOCK_PortC = CLK_GATE_DEFINE(0x1038U, 11U),
kCLOCK_PortD = CLK_GATE_DEFINE(0x1038U, 12U),
kCLOCK_PortE = CLK_GATE_DEFINE(0x1038U, 13U),
kCLOCK_Ftf0 = CLK_GATE_DEFINE(0x103CU, 0U),
kCLOCK_Dmamux0 = CLK_GATE_DEFINE(0x103CU, 1U),
kCLOCK_Flexcan0 = CLK_GATE_DEFINE(0x103CU, 4U),
kCLOCK_Rnga0 = CLK_GATE_DEFINE(0x103CU, 9U),
kCLOCK_Spi0 = CLK_GATE_DEFINE(0x103CU, 12U),
kCLOCK_Spi1 = CLK_GATE_DEFINE(0x103CU, 13U),
kCLOCK_Sai0 = CLK_GATE_DEFINE(0x103CU, 15U),
kCLOCK_Crc0 = CLK_GATE_DEFINE(0x103CU, 18U),
kCLOCK_Usbdcd0 = CLK_GATE_DEFINE(0x103CU, 21U),
kCLOCK_Pdb0 = CLK_GATE_DEFINE(0x103CU, 22U),
kCLOCK_Pit0 = CLK_GATE_DEFINE(0x103CU, 23U),
kCLOCK_Ftm0 = CLK_GATE_DEFINE(0x103CU, 24U),
kCLOCK_Ftm1 = CLK_GATE_DEFINE(0x103CU, 25U),
kCLOCK_Ftm2 = CLK_GATE_DEFINE(0x103CU, 26U),
kCLOCK_Adc0 = CLK_GATE_DEFINE(0x103CU, 27U),
kCLOCK_Rtc0 = CLK_GATE_DEFINE(0x103CU, 29U),
kCLOCK_Flexbus0 = CLK_GATE_DEFINE(0x1040U, 0U),
kCLOCK_Dma0 = CLK_GATE_DEFINE(0x1040U, 1U),
kCLOCK_Sysmpu0 = CLK_GATE_DEFINE(0x1040U, 2U),
} clock_ip_name_t;
/*!@brief SIM configuration structure for clock setting. */
typedef struct _sim_clock_config
{
uint8_t pllFllSel; /*!< PLL/FLL/IRC48M selection. */
uint8_t er32kSrc; /*!< ERCLK32K source selection. */
uint32_t clkdiv1; /*!< SIM_CLKDIV1. */
} sim_clock_config_t;
/*! @brief OSC work mode. */
typedef enum _osc_mode
{
kOSC_ModeExt = 0U, /*!< Use an external clock. */
#if (defined(MCG_C2_EREFS_MASK) && !(defined(MCG_C2_EREFS0_MASK)))
kOSC_ModeOscLowPower = MCG_C2_EREFS_MASK, /*!< Oscillator low power. */
#else
kOSC_ModeOscLowPower = MCG_C2_EREFS0_MASK, /*!< Oscillator low power. */
#endif
kOSC_ModeOscHighGain = 0U
#if (defined(MCG_C2_EREFS_MASK) && !(defined(MCG_C2_EREFS0_MASK)))
|
MCG_C2_EREFS_MASK
#else
|
MCG_C2_EREFS0_MASK
#endif
#if (defined(MCG_C2_HGO_MASK) && !(defined(MCG_C2_HGO0_MASK)))
|
MCG_C2_HGO_MASK, /*!< Oscillator high gain. */
#else
|
MCG_C2_HGO0_MASK, /*!< Oscillator high gain. */
#endif
} osc_mode_t;
/*! @brief Oscillator capacitor load setting.*/
enum _osc_cap_load
{
kOSC_Cap2P = OSC_CR_SC2P_MASK, /*!< 2 pF capacitor load */
kOSC_Cap4P = OSC_CR_SC4P_MASK, /*!< 4 pF capacitor load */
kOSC_Cap8P = OSC_CR_SC8P_MASK, /*!< 8 pF capacitor load */
kOSC_Cap16P = OSC_CR_SC16P_MASK /*!< 16 pF capacitor load */
};
/*! @brief OSCERCLK enable mode. */
enum _oscer_enable_mode
{
kOSC_ErClkEnable = OSC_CR_ERCLKEN_MASK, /*!< Enable. */
kOSC_ErClkEnableInStop = OSC_CR_EREFSTEN_MASK /*!< Enable in stop mode. */
};
/*! @brief OSC configuration for OSCERCLK. */
typedef struct _oscer_config
{
uint8_t enableMode; /*!< OSCERCLK enable mode. OR'ed value of @ref _oscer_enable_mode. */
} oscer_config_t;
/*!
* @brief OSC Initialization Configuration Structure
*
* Defines the configuration data structure to initialize the OSC.
* When porting to a new board, set the following members
* according to the board setting:
* 1. freq: The external frequency.
* 2. workMode: The OSC module mode.
*/
typedef struct _osc_config
{
uint32_t freq; /*!< External clock frequency. */
uint8_t capLoad; /*!< Capacitor load setting. */
osc_mode_t workMode; /*!< OSC work mode setting. */
oscer_config_t oscerConfig; /*!< Configuration for OSCERCLK. */
} osc_config_t;
/*! @brief MCG FLL reference clock source select. */
typedef enum _mcg_fll_src
{
kMCG_FllSrcExternal, /*!< External reference clock is selected */
kMCG_FllSrcInternal /*!< The slow internal reference clock is selected */
} mcg_fll_src_t;
/*! @brief MCG internal reference clock select */
typedef enum _mcg_irc_mode
{
kMCG_IrcSlow, /*!< Slow internal reference clock selected */
kMCG_IrcFast /*!< Fast internal reference clock selected */
} mcg_irc_mode_t;
/*! @brief MCG DCO Maximum Frequency with 32.768 kHz Reference */
typedef enum _mcg_dmx32
{
kMCG_Dmx32Default, /*!< DCO has a default range of 25% */
kMCG_Dmx32Fine /*!< DCO is fine-tuned for maximum frequency with 32.768 kHz reference */
} mcg_dmx32_t;
/*! @brief MCG DCO range select */
typedef enum _mcg_drs
{
kMCG_DrsLow, /*!< Low frequency range */
kMCG_DrsMid, /*!< Mid frequency range */
kMCG_DrsMidHigh, /*!< Mid-High frequency range */
kMCG_DrsHigh /*!< High frequency range */
} mcg_drs_t;
/*! @brief MCG PLL reference clock select */
typedef enum _mcg_pll_ref_src
{
kMCG_PllRefOsc0, /*!< Selects OSC0 as PLL reference clock */
kMCG_PllRefOsc1 /*!< Selects OSC1 as PLL reference clock */
} mcg_pll_ref_src_t;
/*! @brief MCGOUT clock source. */
typedef enum _mcg_clkout_src
{
kMCG_ClkOutSrcOut, /*!< Output of the FLL is selected (reset default) */
kMCG_ClkOutSrcInternal, /*!< Internal reference clock is selected */
kMCG_ClkOutSrcExternal, /*!< External reference clock is selected */
} mcg_clkout_src_t;
/*! @brief MCG Automatic Trim Machine Select */
typedef enum _mcg_atm_select
{
kMCG_AtmSel32k, /*!< 32 kHz Internal Reference Clock selected */
kMCG_AtmSel4m /*!< 4 MHz Internal Reference Clock selected */
} mcg_atm_select_t;
/*! @brief MCG OSC Clock Select */
typedef enum _mcg_oscsel
{
kMCG_OscselOsc, /*!< Selects System Oscillator (OSCCLK) */
kMCG_OscselRtc, /*!< Selects 32 kHz RTC Oscillator */
kMCG_OscselIrc /*!< Selects 48 MHz IRC Oscillator */
} mcg_oscsel_t;
/*! @brief MCG PLLCS select */
typedef enum _mcg_pll_clk_select
{
kMCG_PllClkSelPll0, /*!< PLL0 output clock is selected */
kMCG_PllClkSelPll1 /* PLL1 output clock is selected */
} mcg_pll_clk_select_t;
/*! @brief MCG clock monitor mode. */
typedef enum _mcg_monitor_mode
{
kMCG_MonitorNone, /*!< Clock monitor is disabled. */
kMCG_MonitorInt, /*!< Trigger interrupt when clock lost. */
kMCG_MonitorReset /*!< System reset when clock lost. */
} mcg_monitor_mode_t;
/*! @brief MCG status. */
enum _mcg_status
{
kStatus_MCG_ModeUnreachable = MAKE_STATUS(kStatusGroup_MCG, 0), /*!< Can't switch to target mode. */
kStatus_MCG_ModeInvalid = MAKE_STATUS(kStatusGroup_MCG, 1), /*!< Current mode invalid for the specific
function. */
kStatus_MCG_AtmBusClockInvalid = MAKE_STATUS(kStatusGroup_MCG, 2), /*!< Invalid bus clock for ATM. */
kStatus_MCG_AtmDesiredFreqInvalid = MAKE_STATUS(kStatusGroup_MCG, 3), /*!< Invalid desired frequency for ATM. */
kStatus_MCG_AtmIrcUsed = MAKE_STATUS(kStatusGroup_MCG, 4), /*!< IRC is used when using ATM. */
kStatus_MCG_AtmHardwareFail = MAKE_STATUS(kStatusGroup_MCG, 5), /*!< Hardware fail occurs during ATM. */
kStatus_MCG_SourceUsed = MAKE_STATUS(kStatusGroup_MCG, 6) /*!< Can't change the clock source because
it is in use. */
};
/*! @brief MCG status flags. */
enum _mcg_status_flags_t
{
kMCG_Osc0LostFlag = (1U << 0U), /*!< OSC0 lost. */
kMCG_Osc0InitFlag = (1U << 1U), /*!< OSC0 crystal initialized. */
kMCG_RtcOscLostFlag = (1U << 4U), /*!< RTC OSC lost. */
kMCG_Pll0LostFlag = (1U << 5U), /*!< PLL0 lost. */
kMCG_Pll0LockFlag = (1U << 6U), /*!< PLL0 locked. */
};
/*! @brief MCG internal reference clock (MCGIRCLK) enable mode definition. */
enum _mcg_irclk_enable_mode
{
kMCG_IrclkEnable = MCG_C1_IRCLKEN_MASK, /*!< MCGIRCLK enable. */
kMCG_IrclkEnableInStop = MCG_C1_IREFSTEN_MASK /*!< MCGIRCLK enable in stop mode. */
};
/*! @brief MCG PLL clock enable mode definition. */
enum _mcg_pll_enable_mode
{
kMCG_PllEnableIndependent = MCG_C5_PLLCLKEN0_MASK, /*!< MCGPLLCLK enable independent of the
MCG clock mode. Generally, the PLL
is disabled in FLL modes
(FEI/FBI/FEE/FBE). Setting the PLL clock
enable independent, enables the
PLL in the FLL modes. */
kMCG_PllEnableInStop = MCG_C5_PLLSTEN0_MASK /*!< MCGPLLCLK enable in STOP mode. */
};
/*! @brief MCG mode definitions */
typedef enum _mcg_mode
{
kMCG_ModeFEI = 0U, /*!< FEI - FLL Engaged Internal */
kMCG_ModeFBI, /*!< FBI - FLL Bypassed Internal */
kMCG_ModeBLPI, /*!< BLPI - Bypassed Low Power Internal */
kMCG_ModeFEE, /*!< FEE - FLL Engaged External */
kMCG_ModeFBE, /*!< FBE - FLL Bypassed External */
kMCG_ModeBLPE, /*!< BLPE - Bypassed Low Power External */
kMCG_ModePBE, /*!< PBE - PLL Bypassed External */
kMCG_ModePEE, /*!< PEE - PLL Engaged External */
kMCG_ModeError /*!< Unknown mode */
} mcg_mode_t;
/*! @brief MCG PLL configuration. */
typedef struct _mcg_pll_config
{
uint8_t enableMode; /*!< Enable mode. OR'ed value of @ref _mcg_pll_enable_mode. */
uint8_t prdiv; /*!< Reference divider PRDIV. */
uint8_t vdiv; /*!< VCO divider VDIV. */
} mcg_pll_config_t;
/*! @brief MCG mode change configuration structure
*
* When porting to a new board, set the following members
* according to the board setting:
* 1. frdiv: If the FLL uses the external reference clock, set this
* value to ensure that the external reference clock divided by frdiv is
* in the 31.25 kHz to 39.0625 kHz range.
* 2. The PLL reference clock divider PRDIV: PLL reference clock frequency after
* PRDIV should be in the FSL_FEATURE_MCG_PLL_REF_MIN to
* FSL_FEATURE_MCG_PLL_REF_MAX range.
*/
typedef struct _mcg_config
{
mcg_mode_t mcgMode; /*!< MCG mode. */
/* ----------------------- MCGIRCCLK settings ------------------------ */
uint8_t irclkEnableMode; /*!< MCGIRCLK enable mode. */
mcg_irc_mode_t ircs; /*!< Source, MCG_C2[IRCS]. */
uint8_t fcrdiv; /*!< Divider, MCG_SC[FCRDIV]. */
/* ------------------------ MCG FLL settings ------------------------- */
uint8_t frdiv; /*!< Divider MCG_C1[FRDIV]. */
mcg_drs_t drs; /*!< DCO range MCG_C4[DRST_DRS]. */
mcg_dmx32_t dmx32; /*!< MCG_C4[DMX32]. */
mcg_oscsel_t oscsel; /*!< OSC select MCG_C7[OSCSEL]. */
/* ------------------------ MCG PLL settings ------------------------- */
mcg_pll_config_t pll0Config; /*!< MCGPLL0CLK configuration. */
} mcg_config_t;
/*******************************************************************************
* API
******************************************************************************/
#if defined(__cplusplus)
extern "C" {
#endif /* __cplusplus */
/*!
* @brief Enable the clock for specific IP.
*
* @param name Which clock to enable, see \ref clock_ip_name_t.
*/
static inline void CLOCK_EnableClock(clock_ip_name_t name)
{
uint32_t regAddr = SIM_BASE + CLK_GATE_ABSTRACT_REG_OFFSET((uint32_t)name);
(*(volatile uint32_t *)regAddr) |= (1U << CLK_GATE_ABSTRACT_BITS_SHIFT((uint32_t)name));
}
/*!
* @brief Disable the clock for specific IP.
*
* @param name Which clock to disable, see \ref clock_ip_name_t.
*/
static inline void CLOCK_DisableClock(clock_ip_name_t name)
{
uint32_t regAddr = SIM_BASE + CLK_GATE_ABSTRACT_REG_OFFSET((uint32_t)name);
(*(volatile uint32_t *)regAddr) &= ~(1U << CLK_GATE_ABSTRACT_BITS_SHIFT((uint32_t)name));
}
/*!
* @brief Set ERCLK32K source.
*
* @param src The value to set ERCLK32K clock source.
*/
static inline void CLOCK_SetEr32kClock(uint32_t src)
{
SIM->SOPT1 = ((SIM->SOPT1 & ~SIM_SOPT1_OSC32KSEL_MASK) | SIM_SOPT1_OSC32KSEL(src));
}
/*!
* @brief Set SDHC0 clock source.
*
* @param src The value to set SDHC0 clock source.
*/
static inline void CLOCK_SetSdhc0Clock(uint32_t src)
{
SIM->SOPT2 = ((SIM->SOPT2 & ~SIM_SOPT2_SDHCSRC_MASK) | SIM_SOPT2_SDHCSRC(src));
}
/*!
* @brief Set enet timestamp clock source.
*
* @param src The value to set enet timestamp clock source.
*/
static inline void CLOCK_SetEnetTime0Clock(uint32_t src)
{
SIM->SOPT2 = ((SIM->SOPT2 & ~SIM_SOPT2_TIMESRC_MASK) | SIM_SOPT2_TIMESRC(src));
}
/*!
* @brief Set RMII clock source.
*
* @param src The value to set RMII clock source.
*/
static inline void CLOCK_SetRmii0Clock(uint32_t src)
{
SIM->SOPT2 = ((SIM->SOPT2 & ~SIM_SOPT2_RMIISRC_MASK) | SIM_SOPT2_RMIISRC(src));
}
/*!
* @brief Set debug trace clock source.
*
* @param src The value to set debug trace clock source.
*/
static inline void CLOCK_SetTraceClock(uint32_t src)
{
SIM->SOPT2 = ((SIM->SOPT2 & ~SIM_SOPT2_TRACECLKSEL_MASK) | SIM_SOPT2_TRACECLKSEL(src));
}
/*!
* @brief Set PLLFLLSEL clock source.
*
* @param src The value to set PLLFLLSEL clock source.
*/
static inline void CLOCK_SetPllFllSelClock(uint32_t src)
{
SIM->SOPT2 = ((SIM->SOPT2 & ~SIM_SOPT2_PLLFLLSEL_MASK) | SIM_SOPT2_PLLFLLSEL(src));
}
/*!
* @brief Set CLKOUT source.
*
* @param src The value to set CLKOUT source.
*/
static inline void CLOCK_SetClkOutClock(uint32_t src)
{
SIM->SOPT2 = ((SIM->SOPT2 & ~SIM_SOPT2_CLKOUTSEL_MASK) | SIM_SOPT2_CLKOUTSEL(src));
}
/*!
* @brief Set RTC_CLKOUT source.
*
* @param src The value to set RTC_CLKOUT source.
*/
static inline void CLOCK_SetRtcClkOutClock(uint32_t src)
{
SIM->SOPT2 = ((SIM->SOPT2 & ~SIM_SOPT2_RTCCLKOUTSEL_MASK) | SIM_SOPT2_RTCCLKOUTSEL(src));
}
/*! @brief Enable USB FS clock.
*
* @param src USB FS clock source.
* @param freq The frequency specified by src.
* @retval true The clock is set successfully.
* @retval false The clock source is invalid to get proper USB FS clock.
*/
bool CLOCK_EnableUsbfs0Clock(clock_usb_src_t src, uint32_t freq);
/*! @brief Disable USB FS clock.
*
* Disable USB FS clock.
*/
static inline void CLOCK_DisableUsbfs0Clock(void)
{
CLOCK_DisableClock(kCLOCK_Usbfs0);
}
/*!
* @brief System clock divider
*
* Set the SIM_CLKDIV1[OUTDIV1], SIM_CLKDIV1[OUTDIV2], SIM_CLKDIV1[OUTDIV3], SIM_CLKDIV1[OUTDIV4].
*
* @param outdiv1 Clock 1 output divider value.
*
* @param outdiv2 Clock 2 output divider value.
*
* @param outdiv3 Clock 3 output divider value.
*
* @param outdiv4 Clock 4 output divider value.
*/
static inline void CLOCK_SetOutDiv(uint32_t outdiv1, uint32_t outdiv2, uint32_t outdiv3, uint32_t outdiv4)
{
SIM->CLKDIV1 = SIM_CLKDIV1_OUTDIV1(outdiv1) | SIM_CLKDIV1_OUTDIV2(outdiv2) | SIM_CLKDIV1_OUTDIV3(outdiv3) |
SIM_CLKDIV1_OUTDIV4(outdiv4);
}
/*!
* @brief Gets the clock frequency for a specific clock name.
*
* This function checks the current clock configurations and then calculates
* the clock frequency for a specific clock name defined in clock_name_t.
* The MCG must be properly configured before using this function.
*
* @param clockName Clock names defined in clock_name_t
* @return Clock frequency value in Hertz
*/
uint32_t CLOCK_GetFreq(clock_name_t clockName);
/*!
* @brief Get the core clock or system clock frequency.
*
* @return Clock frequency in Hz.
*/
uint32_t CLOCK_GetCoreSysClkFreq(void);
/*!
* @brief Get the platform clock frequency.
*
* @return Clock frequency in Hz.
*/
uint32_t CLOCK_GetPlatClkFreq(void);
/*!
* @brief Get the bus clock frequency.
*
* @return Clock frequency in Hz.
*/
uint32_t CLOCK_GetBusClkFreq(void);
/*!
* @brief Get the flexbus clock frequency.
*
* @return Clock frequency in Hz.
*/
uint32_t CLOCK_GetFlexBusClkFreq(void);
/*!
* @brief Get the flash clock frequency.
*
* @return Clock frequency in Hz.
*/
uint32_t CLOCK_GetFlashClkFreq(void);
/*!
* @brief Get the output clock frequency selected by SIM[PLLFLLSEL].
*
* @return Clock frequency in Hz.
*/
uint32_t CLOCK_GetPllFllSelClkFreq(void);
/*!
* @brief Get the external reference 32K clock frequency (ERCLK32K).
*
* @return Clock frequency in Hz.
*/
uint32_t CLOCK_GetEr32kClkFreq(void);
/*!
* @brief Get the OSC0 external reference clock frequency (OSC0ERCLK).
*
* @return Clock frequency in Hz.
*/
uint32_t CLOCK_GetOsc0ErClkFreq(void);
/*!
* @brief Set the clock configure in SIM module.
*
* This function sets system layer clock settings in SIM module.
*
* @param config Pointer to the configure structure.
*/
void CLOCK_SetSimConfig(sim_clock_config_t const *config);
/*!
* @brief Set the system clock dividers in SIM to safe value.
*
* The system level clocks (core clock, bus clock, flexbus clock and flash clock)
* must be in allowed ranges. During MCG clock mode switch, the MCG output clock
* changes then the system level clocks may be out of range. This function could
* be used before MCG mode change, to make sure system level clocks are in allowed
* range.
*
* @param config Pointer to the configure structure.
*/
static inline void CLOCK_SetSimSafeDivs(void)
{
SIM->CLKDIV1 = 0x01240000U;
}
/*! @name MCG frequency functions. */
/*@{*/
/*!
* @brief Gets the MCG output clock (MCGOUTCLK) frequency.
*
* This function gets the MCG output clock frequency in Hz based on the current MCG
* register value.
*
* @return The frequency of MCGOUTCLK.
*/
uint32_t CLOCK_GetOutClkFreq(void);
/*!
* @brief Gets the MCG FLL clock (MCGFLLCLK) frequency.
*
* This function gets the MCG FLL clock frequency in Hz based on the current MCG
* register value. The FLL is enabled in FEI/FBI/FEE/FBE mode and
* disabled in low power state in other modes.
*
* @return The frequency of MCGFLLCLK.
*/
uint32_t CLOCK_GetFllFreq(void);
/*!
* @brief Gets the MCG internal reference clock (MCGIRCLK) frequency.
*
* This function gets the MCG internal reference clock frequency in Hz based
* on the current MCG register value.
*
* @return The frequency of MCGIRCLK.
*/
uint32_t CLOCK_GetInternalRefClkFreq(void);
/*!
* @brief Gets the MCG fixed frequency clock (MCGFFCLK) frequency.
*
* This function gets the MCG fixed frequency clock frequency in Hz based
* on the current MCG register value.
*
* @return The frequency of MCGFFCLK.
*/
uint32_t CLOCK_GetFixedFreqClkFreq(void);
/*!
* @brief Gets the MCG PLL0 clock (MCGPLL0CLK) frequency.
*
* This function gets the MCG PLL0 clock frequency in Hz based on the current MCG
* register value.
*
* @return The frequency of MCGPLL0CLK.
*/
uint32_t CLOCK_GetPll0Freq(void);
/*@}*/
/*! @name MCG clock configuration. */
/*@{*/
/*!
* @brief Enables or disables the MCG low power.
*
* Enabling the MCG low power disables the PLL and FLL in bypass modes. In other words,
* in FBE and PBE modes, enabling low power sets the MCG to BLPE mode. In FBI and
* PBI modes, enabling low power sets the MCG to BLPI mode.
* When disabling the MCG low power, the PLL or FLL are enabled based on MCG settings.
*
* @param enable True to enable MCG low power, false to disable MCG low power.
*/
static inline void CLOCK_SetLowPowerEnable(bool enable)
{
if (enable)
{
MCG->C2 |= MCG_C2_LP_MASK;
}
else
{
MCG->C2 &= ~MCG_C2_LP_MASK;
}
}
/*!
* @brief Configures the Internal Reference clock (MCGIRCLK).
*
* This function sets the \c MCGIRCLK base on parameters. It also selects the IRC
* source. If the fast IRC is used, this function sets the fast IRC divider.
* This function also sets whether the \c MCGIRCLK is enabled in stop mode.
* Calling this function in FBI/PBI/BLPI modes may change the system clock. As a result,
* using the function in these modes it is not allowed.
*
* @param enableMode MCGIRCLK enable mode, OR'ed value of @ref _mcg_irclk_enable_mode.
* @param ircs MCGIRCLK clock source, choose fast or slow.
* @param fcrdiv Fast IRC divider setting (\c FCRDIV).
* @retval kStatus_MCG_SourceUsed Because the internall reference clock is used as a clock source,
* the confuration should not be changed. Otherwise, a glitch occurs.
* @retval kStatus_Success MCGIRCLK configuration finished successfully.
*/
status_t CLOCK_SetInternalRefClkConfig(uint8_t enableMode, mcg_irc_mode_t ircs, uint8_t fcrdiv);
/*!
* @brief Selects the MCG external reference clock.
*
* Selects the MCG external reference clock source, changes the MCG_C7[OSCSEL],
* and waits for the clock source to be stable. Because the external reference
* clock should not be changed in FEE/FBE/BLPE/PBE/PEE modes, do not call this function in these modes.
*
* @param oscsel MCG external reference clock source, MCG_C7[OSCSEL].
* @retval kStatus_MCG_SourceUsed Because the external reference clock is used as a clock source,
* the confuration should not be changed. Otherwise, a glitch occurs.
* @retval kStatus_Success External reference clock set successfully.
*/
status_t CLOCK_SetExternalRefClkConfig(mcg_oscsel_t oscsel);
/*!
* @brief Set the FLL external reference clock divider value.
*
* Sets the FLL external reference clock divider value, the register MCG_C1[FRDIV].
*
* @param frdiv The FLL external reference clock divider value, MCG_C1[FRDIV].
*/
static inline void CLOCK_SetFllExtRefDiv(uint8_t frdiv)
{
MCG->C1 = (MCG->C1 & ~MCG_C1_FRDIV_MASK) | MCG_C1_FRDIV(frdiv);
}
/*!
* @brief Enables the PLL0 in FLL mode.
*
* This function sets us the PLL0 in FLL mode and reconfigures
* the PLL0. Ensure that the PLL reference
* clock is enabled before calling this function and that the PLL0 is not used as a clock source.
* The function CLOCK_CalcPllDiv gets the correct PLL
* divider values.
*
* @param config Pointer to the configuration structure.
*/
void CLOCK_EnablePll0(mcg_pll_config_t const *config);
/*!
* @brief Disables the PLL0 in FLL mode.
*
* This function disables the PLL0 in FLL mode. It should be used together with the
* @ref CLOCK_EnablePll0.
*/
static inline void CLOCK_DisablePll0(void)
{
MCG->C5 &= ~(MCG_C5_PLLCLKEN0_MASK | MCG_C5_PLLSTEN0_MASK);
}
/*!
* @brief Calculates the PLL divider setting for a desired output frequency.
*
* This function calculates the correct reference clock divider (\c PRDIV) and
* VCO divider (\c VDIV) to generate a desired PLL output frequency. It returns the
* closest frequency match with the corresponding \c PRDIV/VDIV
* returned from parameters. If a desired frequency is not valid, this function
* returns 0.
*
* @param refFreq PLL reference clock frequency.
* @param desireFreq Desired PLL output frequency.
* @param prdiv PRDIV value to generate desired PLL frequency.
* @param vdiv VDIV value to generate desired PLL frequency.
* @return Closest frequency match that the PLL was able generate.
*/
uint32_t CLOCK_CalcPllDiv(uint32_t refFreq, uint32_t desireFreq, uint8_t *prdiv, uint8_t *vdiv);
/*@}*/
/*! @name MCG clock lock monitor functions. */
/*@{*/
/*!
* @brief Sets the OSC0 clock monitor mode.
*
* This function sets the OSC0 clock monitor mode. See @ref mcg_monitor_mode_t for details.
*
* @param mode Monitor mode to set.
*/
void CLOCK_SetOsc0MonitorMode(mcg_monitor_mode_t mode);
/*!
* @brief Sets the RTC OSC clock monitor mode.
*
* This function sets the RTC OSC clock monitor mode. See @ref mcg_monitor_mode_t for details.
*
* @param mode Monitor mode to set.
*/
void CLOCK_SetRtcOscMonitorMode(mcg_monitor_mode_t mode);
/*!
* @brief Sets the PLL0 clock monitor mode.
*
* This function sets the PLL0 clock monitor mode. See @ref mcg_monitor_mode_t for details.
*
* @param mode Monitor mode to set.
*/
void CLOCK_SetPll0MonitorMode(mcg_monitor_mode_t mode);
/*!
* @brief Gets the MCG status flags.
*
* This function gets the MCG clock status flags. All status flags are
* returned as a logical OR of the enumeration @ref _mcg_status_flags_t. To
* check a specific flag, compare the return value with the flag.
*
* Example:
* @code
// To check the clock lost lock status of OSC0 and PLL0.
uint32_t mcgFlags;
mcgFlags = CLOCK_GetStatusFlags();
if (mcgFlags & kMCG_Osc0LostFlag)
{
// OSC0 clock lock lost. Do something.
}
if (mcgFlags & kMCG_Pll0LostFlag)
{
// PLL0 clock lock lost. Do something.
}
@endcode
*
* @return Logical OR value of the @ref _mcg_status_flags_t.
*/
uint32_t CLOCK_GetStatusFlags(void);
/*!
* @brief Clears the MCG status flags.
*
* This function clears the MCG clock lock lost status. The parameter is a logical
* OR value of the flags to clear. See @ref _mcg_status_flags_t.
*
* Example:
* @code
// To clear the clock lost lock status flags of OSC0 and PLL0.
CLOCK_ClearStatusFlags(kMCG_Osc0LostFlag | kMCG_Pll0LostFlag);
@endcode
*
* @param mask The status flags to clear. This is a logical OR of members of the
* enumeration @ref _mcg_status_flags_t.
*/
void CLOCK_ClearStatusFlags(uint32_t mask);
/*@}*/
/*!
* @name OSC configuration
* @{
*/
/*!
* @brief Configures the OSC external reference clock (OSCERCLK).
*
* This function configures the OSC external reference clock (OSCERCLK).
* This is an example to enable the OSCERCLK in normal and stop modes and also set
* the output divider to 1:
*
@code
oscer_config_t config =
{
.enableMode = kOSC_ErClkEnable | kOSC_ErClkEnableInStop,
.erclkDiv = 1U,
};
OSC_SetExtRefClkConfig(OSC, &config);
@endcode
*
* @param base OSC peripheral address.
* @param config Pointer to the configuration structure.
*/
static inline void OSC_SetExtRefClkConfig(OSC_Type *base, oscer_config_t const *config)
{
uint8_t reg = base->CR;
reg &= ~(OSC_CR_ERCLKEN_MASK | OSC_CR_EREFSTEN_MASK);
reg |= config->enableMode;
base->CR = reg;
}
/*!
* @brief Sets the capacitor load configuration for the oscillator.
*
* This function sets the specified capacitors configuration for the oscillator.
* This should be done in the early system level initialization function call
* based on the system configuration.
*
* @param base OSC peripheral address.
* @param capLoad OR'ed value for the capacitor load option, see \ref _osc_cap_load.
*
* Example:
@code
// To enable only 2 pF and 8 pF capacitor load, please use like this.
OSC_SetCapLoad(OSC, kOSC_Cap2P | kOSC_Cap8P);
@endcode
*/
static inline void OSC_SetCapLoad(OSC_Type *base, uint8_t capLoad)
{
uint8_t reg = base->CR;
reg &= ~(OSC_CR_SC2P_MASK | OSC_CR_SC4P_MASK | OSC_CR_SC8P_MASK | OSC_CR_SC16P_MASK);
reg |= capLoad;
base->CR = reg;
}
/*!
* @brief Initializes the OSC0.
*
* This function initializes the OSC0 according to the board configuration.
*
* @param config Pointer to the OSC0 configuration structure.
*/
void CLOCK_InitOsc0(osc_config_t const *config);
/*!
* @brief Deinitializes the OSC0.
*
* This function deinitializes the OSC0.
*/
void CLOCK_DeinitOsc0(void);
/* @} */
/*!
* @name External clock frequency
* @{
*/
/*!
* @brief Sets the XTAL0 frequency based on board settings.
*
* @param freq The XTAL0/EXTAL0 input clock frequency in Hz.
*/
static inline void CLOCK_SetXtal0Freq(uint32_t freq)
{
g_xtal0Freq = freq;
}
/*!
* @brief Sets the XTAL32/RTC_CLKIN frequency based on board settings.
*
* @param freq The XTAL32/EXTAL32/RTC_CLKIN input clock frequency in Hz.
*/
static inline void CLOCK_SetXtal32Freq(uint32_t freq)
{
g_xtal32Freq = freq;
}
/* @} */
/*!
* @name MCG auto-trim machine.
* @{
*/
/*!
* @brief Auto trims the internal reference clock.
*
* This function trims the internal reference clock by using the external clock. If
* successful, it returns the kStatus_Success and the frequency after
* trimming is received in the parameter @p actualFreq. If an error occurs,
* the error code is returned.
*
* @param extFreq External clock frequency, which should be a bus clock.
* @param desireFreq Frequency to trim to.
* @param actualFreq Actual frequency after trimming.
* @param atms Trim fast or slow internal reference clock.
* @retval kStatus_Success ATM success.
* @retval kStatus_MCG_AtmBusClockInvalid The bus clock is not in allowed range for the ATM.
* @retval kStatus_MCG_AtmDesiredFreqInvalid MCGIRCLK could not be trimmed to the desired frequency.
* @retval kStatus_MCG_AtmIrcUsed Could not trim because MCGIRCLK is used as a bus clock source.
* @retval kStatus_MCG_AtmHardwareFail Hardware fails while trimming.
*/
status_t CLOCK_TrimInternalRefClk(uint32_t extFreq, uint32_t desireFreq, uint32_t *actualFreq, mcg_atm_select_t atms);
/* @} */
/*! @name MCG mode functions. */
/*@{*/
/*!
* @brief Gets the current MCG mode.
*
* This function checks the MCG registers and determines the current MCG mode.
*
* @return Current MCG mode or error code; See @ref mcg_mode_t.
*/
mcg_mode_t CLOCK_GetMode(void);
/*!
* @brief Sets the MCG to FEI mode.
*
* This function sets the MCG to FEI mode. If setting to FEI mode fails
* from the current mode, this function returns an error.
*
* @param dmx32 DMX32 in FEI mode.
* @param drs The DCO range selection.
* @param fllStableDelay Delay function to ensure that the FLL is stable. Passing
* NULL does not cause a delay.
* @retval kStatus_MCG_ModeUnreachable Could not switch to the target mode.
* @retval kStatus_Success Switched to the target mode successfully.
* @note If @p dmx32 is set to kMCG_Dmx32Fine, the slow IRC must not be trimmed
* to a frequency above 32768 Hz.
*/
status_t CLOCK_SetFeiMode(mcg_dmx32_t dmx32, mcg_drs_t drs, void (*fllStableDelay)(void));
/*!
* @brief Sets the MCG to FEE mode.
*
* This function sets the MCG to FEE mode. If setting to FEE mode fails
* from the current mode, this function returns an error.
*
* @param frdiv FLL reference clock divider setting, FRDIV.
* @param dmx32 DMX32 in FEE mode.
* @param drs The DCO range selection.
* @param fllStableDelay Delay function to make sure FLL is stable. Passing
* NULL does not cause a delay.
*
* @retval kStatus_MCG_ModeUnreachable Could not switch to the target mode.
* @retval kStatus_Success Switched to the target mode successfully.
*/
status_t CLOCK_SetFeeMode(uint8_t frdiv, mcg_dmx32_t dmx32, mcg_drs_t drs, void (*fllStableDelay)(void));
/*!
* @brief Sets the MCG to FBI mode.
*
* This function sets the MCG to FBI mode. If setting to FBI mode fails
* from the current mode, this function returns an error.
*
* @param dmx32 DMX32 in FBI mode.
* @param drs The DCO range selection.
* @param fllStableDelay Delay function to make sure FLL is stable. If the FLL
* is not used in FBI mode, this parameter can be NULL. Passing
* NULL does not cause a delay.
* @retval kStatus_MCG_ModeUnreachable Could not switch to the target mode.
* @retval kStatus_Success Switched to the target mode successfully.
* @note If @p dmx32 is set to kMCG_Dmx32Fine, the slow IRC must not be trimmed
* to frequency above 32768 Hz.
*/
status_t CLOCK_SetFbiMode(mcg_dmx32_t dmx32, mcg_drs_t drs, void (*fllStableDelay)(void));
/*!
* @brief Sets the MCG to FBE mode.
*
* This function sets the MCG to FBE mode. If setting to FBE mode fails
* from the current mode, this function returns an error.
*
* @param frdiv FLL reference clock divider setting, FRDIV.
* @param dmx32 DMX32 in FBE mode.
* @param drs The DCO range selection.
* @param fllStableDelay Delay function to make sure FLL is stable. If the FLL
* is not used in FBE mode, this parameter can be NULL. Passing NULL
* does not cause a delay.
* @retval kStatus_MCG_ModeUnreachable Could not switch to the target mode.
* @retval kStatus_Success Switched to the target mode successfully.
*/
status_t CLOCK_SetFbeMode(uint8_t frdiv, mcg_dmx32_t dmx32, mcg_drs_t drs, void (*fllStableDelay)(void));
/*!
* @brief Sets the MCG to BLPI mode.
*
* This function sets the MCG to BLPI mode. If setting to BLPI mode fails
* from the current mode, this function returns an error.
*
* @retval kStatus_MCG_ModeUnreachable Could not switch to the target mode.
* @retval kStatus_Success Switched to the target mode successfully.
*/
status_t CLOCK_SetBlpiMode(void);
/*!
* @brief Sets the MCG to BLPE mode.
*
* This function sets the MCG to BLPE mode. If setting to BLPE mode fails
* from the current mode, this function returns an error.
*
* @retval kStatus_MCG_ModeUnreachable Could not switch to the target mode.
* @retval kStatus_Success Switched to the target mode successfully.
*/
status_t CLOCK_SetBlpeMode(void);
/*!
* @brief Sets the MCG to PBE mode.
*
* This function sets the MCG to PBE mode. If setting to PBE mode fails
* from the current mode, this function returns an error.
*
* @param pllcs The PLL selection, PLLCS.
* @param config Pointer to the PLL configuration.
* @retval kStatus_MCG_ModeUnreachable Could not switch to the target mode.
* @retval kStatus_Success Switched to the target mode successfully.
*
* @note
* 1. The parameter \c pllcs selects the PLL. For platforms with
* only one PLL, the parameter pllcs is kept for interface compatibility.
* 2. The parameter \c config is the PLL configuration structure. On some
* platforms, it is possible to choose the external PLL directly, which renders the
* configuration structure not necessary. In this case, pass in NULL.
* For example: CLOCK_SetPbeMode(kMCG_OscselOsc, kMCG_PllClkSelExtPll, NULL);
*/
status_t CLOCK_SetPbeMode(mcg_pll_clk_select_t pllcs, mcg_pll_config_t const *config);
/*!
* @brief Sets the MCG to PEE mode.
*
* This function sets the MCG to PEE mode.
*
* @retval kStatus_MCG_ModeUnreachable Could not switch to the target mode.
* @retval kStatus_Success Switched to the target mode successfully.
*
* @note This function only changes the CLKS to use the PLL/FLL output. If the
* PRDIV/VDIV are different than in the PBE mode, set them up
* in PBE mode and wait. When the clock is stable, switch to PEE mode.
*/
status_t CLOCK_SetPeeMode(void);
/*!
* @brief Switches the MCG to FBE mode from the external mode.
*
* This function switches the MCG from external modes (PEE/PBE/BLPE/FEE) to the FBE mode quickly.
* The external clock is used as the system clock souce and PLL is disabled. However,
* the FLL settings are not configured. This is a lite function with a small code size, which is useful
* during the mode switch. For example, to switch from PEE mode to FEI mode:
*
* @code
* CLOCK_ExternalModeToFbeModeQuick();
* CLOCK_SetFeiMode(...);
* @endcode
*
* @retval kStatus_Success Switched successfully.
* @retval kStatus_MCG_ModeInvalid If the current mode is not an external mode, do not call this function.
*/
status_t CLOCK_ExternalModeToFbeModeQuick(void);
/*!
* @brief Switches the MCG to FBI mode from internal modes.
*
* This function switches the MCG from internal modes (PEI/PBI/BLPI/FEI) to the FBI mode quickly.
* The MCGIRCLK is used as the system clock souce and PLL is disabled. However,
* FLL settings are not configured. This is a lite function with a small code size, which is useful
* during the mode switch. For example, to switch from PEI mode to FEE mode:
*
* @code
* CLOCK_InternalModeToFbiModeQuick();
* CLOCK_SetFeeMode(...);
* @endcode
*
* @retval kStatus_Success Switched successfully.
* @retval kStatus_MCG_ModeInvalid If the current mode is not an internal mode, do not call this function.
*/
status_t CLOCK_InternalModeToFbiModeQuick(void);
/*!
* @brief Sets the MCG to FEI mode during system boot up.
*
* This function sets the MCG to FEI mode from the reset mode. It can also be used to
* set up MCG during system boot up.
*
* @param dmx32 DMX32 in FEI mode.
* @param drs The DCO range selection.
* @param fllStableDelay Delay function to ensure that the FLL is stable.
*
* @retval kStatus_MCG_ModeUnreachable Could not switch to the target mode.
* @retval kStatus_Success Switched to the target mode successfully.
* @note If @p dmx32 is set to kMCG_Dmx32Fine, the slow IRC must not be trimmed
* to frequency above 32768 Hz.
*/
status_t CLOCK_BootToFeiMode(mcg_dmx32_t dmx32, mcg_drs_t drs, void (*fllStableDelay)(void));
/*!
* @brief Sets the MCG to FEE mode during system bootup.
*
* This function sets MCG to FEE mode from the reset mode. It can also be used to
* set up the MCG during system boot up.
*
* @param oscsel OSC clock select, OSCSEL.
* @param frdiv FLL reference clock divider setting, FRDIV.
* @param dmx32 DMX32 in FEE mode.
* @param drs The DCO range selection.
* @param fllStableDelay Delay function to ensure that the FLL is stable.
*
* @retval kStatus_MCG_ModeUnreachable Could not switch to the target mode.
* @retval kStatus_Success Switched to the target mode successfully.
*/
status_t CLOCK_BootToFeeMode(
mcg_oscsel_t oscsel, uint8_t frdiv, mcg_dmx32_t dmx32, mcg_drs_t drs, void (*fllStableDelay)(void));
/*!
* @brief Sets the MCG to BLPI mode during system boot up.
*
* This function sets the MCG to BLPI mode from the reset mode. It can also be used to
* set up the MCG during sytem boot up.
*
* @param fcrdiv Fast IRC divider, FCRDIV.
* @param ircs The internal reference clock to select, IRCS.
* @param ircEnableMode The MCGIRCLK enable mode, OR'ed value of @ref _mcg_irclk_enable_mode.
*
* @retval kStatus_MCG_SourceUsed Could not change MCGIRCLK setting.
* @retval kStatus_Success Switched to the target mode successfully.
*/
status_t CLOCK_BootToBlpiMode(uint8_t fcrdiv, mcg_irc_mode_t ircs, uint8_t ircEnableMode);
/*!
* @brief Sets the MCG to BLPE mode during sytem boot up.
*
* This function sets the MCG to BLPE mode from the reset mode. It can also be used to
* set up the MCG during sytem boot up.
*
* @param oscsel OSC clock select, MCG_C7[OSCSEL].
*
* @retval kStatus_MCG_ModeUnreachable Could not switch to the target mode.
* @retval kStatus_Success Switched to the target mode successfully.
*/
status_t CLOCK_BootToBlpeMode(mcg_oscsel_t oscsel);
/*!
* @brief Sets the MCG to PEE mode during system boot up.
*
* This function sets the MCG to PEE mode from reset mode. It can also be used to
* set up the MCG during system boot up.
*
* @param oscsel OSC clock select, MCG_C7[OSCSEL].
* @param pllcs The PLL selection, PLLCS.
* @param config Pointer to the PLL configuration.
*
* @retval kStatus_MCG_ModeUnreachable Could not switch to the target mode.
* @retval kStatus_Success Switched to the target mode successfully.
*/
status_t CLOCK_BootToPeeMode(mcg_oscsel_t oscsel, mcg_pll_clk_select_t pllcs, mcg_pll_config_t const *config);
/*!
* @brief Sets the MCG to a target mode.
*
* This function sets MCG to a target mode defined by the configuration
* structure. If switching to the target mode fails, this function
* chooses the correct path.
*
* @param config Pointer to the target MCG mode configuration structure.
* @return Return kStatus_Success if switched successfully; Otherwise, it returns an error code #_mcg_status.
*
* @note If the external clock is used in the target mode, ensure that it is
* enabled. For example, if the OSC0 is used, set up OSC0 correctly before calling this
* function.
*/
status_t CLOCK_SetMcgConfig(mcg_config_t const *config);
/*@}*/
#if defined(__cplusplus)
}
#endif /* __cplusplus */
/*! @} */
#endif /* _FSL_CLOCK_H_ */
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