EFM32 Happy Gecko Software Documentation
efm32hg-doc-5.1.2
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Clock management unit (CMU) Peripheral API.
Copyright 2016 Silicon Laboratories, Inc. http://www.silabs.com
Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions:
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Silicon Labs will not be liable for any consequential, incidental, or special damages, or any other relief, or for any claim by any third party, arising from your use of this Software.
Definition in file em_cmu.c.
#include "em_cmu.h"
#include <stddef.h>
#include <limits.h>
#include "em_assert.h"
#include "em_bus.h"
#include "em_emu.h"
#include "em_system.h"
#include "em_common.h"
Go to the source code of this file.
Functions | |
CMU_AUXHFRCOBand_TypeDef | CMU_AUXHFRCOBandGet (void) |
Get AUXHFRCO band in use. More... | |
void | CMU_AUXHFRCOBandSet (CMU_AUXHFRCOBand_TypeDef band) |
Set AUXHFRCO band and the tuning value based on the value in the calibration table made during production. More... | |
uint32_t | CMU_Calibrate (uint32_t HFCycles, CMU_Osc_TypeDef ref) |
Calibrate clock. More... | |
void | CMU_CalibrateConfig (uint32_t downCycles, CMU_Osc_TypeDef downSel, CMU_Osc_TypeDef upSel) |
Configure clock calibration. More... | |
uint32_t | CMU_CalibrateCountGet (void) |
Get calibration count register. More... | |
CMU_ClkDiv_TypeDef | CMU_ClockDivGet (CMU_Clock_TypeDef clock) |
Get clock divisor/prescaler. More... | |
void | CMU_ClockDivSet (CMU_Clock_TypeDef clock, CMU_ClkDiv_TypeDef div) |
Set clock divisor/prescaler. More... | |
void | CMU_ClockEnable (CMU_Clock_TypeDef clock, bool enable) |
Enable/disable a clock. More... | |
uint32_t | CMU_ClockFreqGet (CMU_Clock_TypeDef clock) |
Get clock frequency for a clock point. More... | |
CMU_Select_TypeDef | CMU_ClockSelectGet (CMU_Clock_TypeDef clock) |
Get currently selected reference clock used for a clock branch. More... | |
void | CMU_ClockSelectSet (CMU_Clock_TypeDef clock, CMU_Select_TypeDef ref) |
Select reference clock/oscillator used for a clock branch. More... | |
void | CMU_FreezeEnable (bool enable) |
CMU low frequency register synchronization freeze control. More... | |
CMU_HFRCOBand_TypeDef | CMU_HFRCOBandGet (void) |
Get HFRCO band in use. More... | |
void | CMU_HFRCOBandSet (CMU_HFRCOBand_TypeDef band) |
Set HFRCO band and the tuning value based on the value in the calibration table made during production. More... | |
uint32_t | CMU_HFRCOStartupDelayGet (void) |
Get the HFRCO startup delay. More... | |
void | CMU_HFRCOStartupDelaySet (uint32_t delay) |
Set the HFRCO startup delay. More... | |
void | CMU_HFXOInit (const CMU_HFXOInit_TypeDef *hfxoInit) |
Set HFXO control registers. More... | |
uint32_t | CMU_LCDClkFDIVGet (void) |
Get the LCD framerate divisor (FDIV) setting. More... | |
void | CMU_LCDClkFDIVSet (uint32_t div) |
Set the LCD framerate divisor (FDIV) setting. More... | |
void | CMU_LFXOInit (const CMU_LFXOInit_TypeDef *lfxoInit) |
Set LFXO control registers. More... | |
void | CMU_OscillatorEnable (CMU_Osc_TypeDef osc, bool enable, bool wait) |
Enable/disable oscillator. More... | |
uint32_t | CMU_OscillatorTuningGet (CMU_Osc_TypeDef osc) |
Get oscillator frequency tuning setting. More... | |
void | CMU_OscillatorTuningSet (CMU_Osc_TypeDef osc, uint32_t val) |
Set the oscillator frequency tuning control. More... | |
bool | CMU_PCNTClockExternalGet (unsigned int instance) |
Determine if currently selected PCNTn clock used is external or LFBCLK. More... | |
void | CMU_PCNTClockExternalSet (unsigned int instance, bool external) |
Select PCNTn clock. More... | |
CMU_USHFRCOBand_TypeDef | CMU_USHFRCOBandGet (void) |
Get USHFRCO band in use. More... | |
void | CMU_USHFRCOBandSet (CMU_USHFRCOBand_TypeDef band) |
Set USHFRCO band to use. More... | |