EFM32 Pearl Gecko Software Documentation
efm32pg1-doc-4.2.1
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Clock management unit (CMU) API. More...
Go to the source code of this file.
Data Structures | |
struct | CMU_LFXOInit_TypeDef |
struct | CMU_HFXOInit_TypeDef |
Macros | |
#define | cmuClkDiv_1 1 |
#define | cmuClkDiv_2 2 |
#define | cmuClkDiv_4 4 |
#define | cmuClkDiv_8 8 |
#define | cmuClkDiv_16 16 |
#define | cmuClkDiv_32 32 |
#define | cmuClkDiv_64 64 |
#define | cmuClkDiv_128 128 |
#define | cmuClkDiv_256 256 |
#define | cmuClkDiv_512 512 |
#define | cmuClkDiv_1024 1024 |
#define | cmuClkDiv_2048 2048 |
#define | cmuClkDiv_4096 4096 |
#define | cmuClkDiv_8192 8192 |
#define | cmuClkDiv_16384 16384 |
#define | cmuClkDiv_32768 32768 |
#define | CMU_HFRCO_MIN cmuHFRCOFreq_1M0Hz |
#define | CMU_HFRCO_MAX cmuHFRCOFreq_38M0Hz |
#define | CMU_AUXHFRCO_MIN cmuAUXHFRCOFreq_1M0Hz |
#define | CMU_AUXHFRCO_MAX cmuAUXHFRCOFreq_38M0Hz |
#define | CMU_LFXOINIT_DEFAULT |
#define | CMU_HFXOINIT_DEFAULT |
Typedefs | |
typedef uint32_t | CMU_ClkDiv_TypeDef |
typedef uint32_t | CMU_ClkPresc_TypeDef |
Functions | |
CMU_AUXHFRCOFreq_TypeDef | CMU_AUXHFRCOFreqGet (void) |
Get AUXHFRCO frequency enumeration in use. More... | |
void | CMU_AUXHFRCOFreqSet (CMU_AUXHFRCOFreq_TypeDef freq) |
Set AUXHFRCO calibration for the selected target frequency. 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... | |
void | CMU_ClockEnable (CMU_Clock_TypeDef clock, bool enable) |
Enable/disable a clock. 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... | |
uint32_t | CMU_ClockFreqGet (CMU_Clock_TypeDef clock) |
Get clock frequency for a clock point. More... | |
void | CMU_ClockPrescSet (CMU_Clock_TypeDef clock, CMU_ClkPresc_TypeDef presc) |
Set clock prescaler. More... | |
uint32_t | CMU_ClockPrescGet (CMU_Clock_TypeDef clock) |
Get clock prescaler. More... | |
void | CMU_ClockSelectSet (CMU_Clock_TypeDef clock, CMU_Select_TypeDef ref) |
Select reference clock/oscillator used for a clock branch. More... | |
CMU_Select_TypeDef | CMU_ClockSelectGet (CMU_Clock_TypeDef clock) |
Get currently selected reference clock used for a clock branch. More... | |
void | CMU_FreezeEnable (bool enable) |
CMU low frequency register synchronization freeze control. More... | |
CMU_HFRCOFreq_TypeDef | CMU_HFRCOFreqGet (void) |
Get HFRCO frequency enumeration in use. More... | |
void | CMU_HFRCOFreqSet (CMU_HFRCOFreq_TypeDef freq) |
Set HFRCO calibration for the selected target frequency. More... | |
uint32_t | CMU_HFRCOStartupDelayGet (void) |
void | CMU_HFRCOStartupDelaySet (uint32_t delay) |
void | CMU_HFXOAutostartEnable (bool enRACStartSel, bool enEM0EM1Start, bool enEM0EM1StartSel) |
Enable or disable HFXO autostart. More... | |
void | CMU_HFXOInit (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 (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... | |
__STATIC_INLINE void | CMU_CalibrateCont (bool enable) |
Configures continuous calibration mode. More... | |
__STATIC_INLINE void | CMU_CalibrateStart (void) |
Starts calibration. More... | |
__STATIC_INLINE void | CMU_CalibrateStop (void) |
Stop the calibration counters. | |
__STATIC_INLINE uint32_t | CMU_DivToLog2 (CMU_ClkDiv_TypeDef div) |
Convert dividend to logarithmic value. Only works for even numbers equal to 2^n. More... | |
__STATIC_INLINE void | CMU_IntClear (uint32_t flags) |
Clear one or more pending CMU interrupts. More... | |
__STATIC_INLINE void | CMU_IntDisable (uint32_t flags) |
Disable one or more CMU interrupts. More... | |
__STATIC_INLINE void | CMU_IntEnable (uint32_t flags) |
Enable one or more CMU interrupts. More... | |
__STATIC_INLINE uint32_t | CMU_IntGet (void) |
Get pending CMU interrupts. More... | |
__STATIC_INLINE uint32_t | CMU_IntGetEnabled (void) |
Get enabled and pending CMU interrupt flags. More... | |
__STATIC_INLINE void | CMU_IntSet (uint32_t flags) |
Set one or more pending CMU interrupts. More... | |
__STATIC_INLINE void | CMU_Lock (void) |
Lock the CMU in order to protect some of its registers against unintended modification. More... | |
__STATIC_INLINE uint32_t | CMU_Log2ToDiv (uint32_t log2) |
Convert logarithm of 2 prescaler to division factor. More... | |
__STATIC_INLINE uint32_t | CMU_PrescToLog2 (CMU_ClkPresc_TypeDef presc) |
Convert prescaler dividend to logarithmic value. Only works for even numbers equal to 2^n. More... | |
__STATIC_INLINE void | CMU_Unlock (void) |
Unlock the CMU so that writing to locked registers again is possible. | |
(C) Copyright 2015 Silicon Labs, http://www.silabs.com
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Definition in file em_cmu.h.