CMSIS Cortex-M0+ Device Peripheral Access Layer System Source File. More...

#include "stm32l0xx.h"

Macros
#define	HSE_VALUE ((uint32_t)8000000U)

#define	MSI_VALUE ((uint32_t)2097152U)

#define	HSI_VALUE ((uint32_t)16000000U)

#define	VECT_TAB_OFFSET 0x00U

Functions
void	SystemInit (void)
	Setup the microcontroller system. More...

void	SystemCoreClockUpdate (void)
	Update SystemCoreClock according to Clock Register Values The SystemCoreClock variable contains the core clock (HCLK), it can be used by the user application to setup the SysTick timer or configure other parameters. More...

Variables
uint32_t	SystemCoreClock = 2097152U

const uint8_t	AHBPrescTable [16] = {0U, 0U, 0U, 0U, 0U, 0U, 0U, 0U, 1U, 2U, 3U, 4U, 6U, 7U, 8U, 9U}

const uint8_t	APBPrescTable [8] = {0U, 0U, 0U, 0U, 1U, 2U, 3U, 4U}

const uint8_t	PLLMulTable [9] = {3U, 4U, 6U, 8U, 12U, 16U, 24U, 32U, 48U}

Detailed Description

CMSIS Cortex-M0+ Device Peripheral Access Layer System Source File.

Author

MCD Application Team This file provides two functions and one global variable to be called from user application:

SystemInit(): This function is called at startup just after reset and before branch to main program. This call is made inside the "startup_stm32l0xx.s" file.
SystemCoreClock variable: Contains the core clock (HCLK), it can be used by the user application to setup the SysTick timer or configure other parameters.
SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must be called whenever the core clock is changed during program execution.

Attention

This software component is licensed by ST under BSD 3-Clause license, the "License"; You may not use this file except in compliance with the License. You may obtain a copy of the License at: opensource.org/licenses/BSD-3-Clause

Macros

Functions

Variables

Detailed Description

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