License

SPDX-License-Identifier: Zlib

The licensor of this software is Silicon Laboratories Inc.

This software is provided 'as-is', without any express or implied warranty. In no event will the authors be held liable for any damages arising from the use of this software.

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:

The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
This notice may not be removed or altered from any source distribution.

Definition in file system_efr32bg21.c.

#include <stdint.h>
#include "em_device.h"

Macros
#define	CLKIN0_FREQ (0UL)

#define	FSRCO_FREQ (20000000UL)

#define	HFRCODPLL_MAX_FREQ (80000000UL)

#define	HFRCODPLL_STARTUP_FREQ (19000000UL)

#define	HFXO_FREQ (38400000UL)

#define	LFRCO_FREQ (32768UL)

#define	LFXO_FREQ (LFRCO_FREQ)

#define	ULFRCO_FREQ (1000UL)

Functions
uint32_t	SystemCLKIN0Get (void)
	Get current CLKIN0 frequency.

uint32_t	SystemFSRCOClockGet (void)
	Get FSRCO frequency.

uint32_t	SystemHCLKGet (void)
	Get the current system core clock frequency (HCLK).

uint32_t	SystemHFRCODPLLClockGet (void)
	Get current HFRCODPLL frequency.

void	SystemHFRCODPLLClockSet (uint32_t freq)
	Set HFRCODPLL frequency value.

uint32_t	SystemHFRCOEM23ClockGet (void)
	Get current HFRCOEM23 frequency.

uint32_t	SystemHFXOClockGet (void)
	Get high frequency crystal oscillator clock frequency for target system.

void	SystemHFXOClockSet (uint32_t freq)
	Set high frequency crystal oscillator clock frequency for target system.

void	SystemInit (void)
	Initialize the system.

uint32_t	SystemLFRCOClockGet (void)
	Get low frequency RC oscillator clock frequency for target system.

uint32_t	SystemLFXOClockGet (void)
	Get low frequency crystal oscillator clock frequency for target system.

void	SystemLFXOClockSet (uint32_t freq)
	Set low frequency crystal oscillator clock frequency for target system.

uint32_t	SystemMaxCoreClockGet (void)
	Get the maximum core clock frequency.

uint32_t	SystemSYSCLKGet (void)
	Get the current system clock frequency (SYSCLK).

uint32_t	SystemULFRCOClockGet (void)
	Get ultra low frequency RC oscillator clock frequency for target system.

Variables
uint32_t	__Vectors

uint32_t	SystemCoreClock = HFRCODPLL_STARTUP_FREQ
	System System Clock Frequency (Core Clock).

static uint32_t	SystemHFRCODPLLClock = HFRCODPLL_STARTUP_FREQ

static uint32_t	SystemHFXOClock = HFXO_FREQ

static uint32_t	SystemLFXOClock = LFXO_FREQ

system_efr32bg21.c File Reference

License

Macros

Functions

Variables