CMSIS Cortex-M7 Device Peripheral Access Layer System Source File. More...

#include "stm32f7xx.h"

Include dependency graph for system_stm32f7xx.c:

Macros
#define	HSE_VALUE ((uint32_t)25000000)

#define	HSI_VALUE ((uint32_t)16000000)

Functions
void	SystemInit (void)
	Setup the microcontroller system Initialize the Embedded Flash Interface, the PLL and update the SystemFrequency variable. More...

void	SystemCoreClockUpdate (void)
	Update SystemCoreClock variable 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 = 16000000

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

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

Detailed Description

CMSIS Cortex-M7 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_stm32f7xx.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 is licensed under terms that can be found in the LICENSE file in the root directory of this software component. If no LICENSE file comes with this software, it is provided AS-IS.

Definition in file system_stm32f7xx.c.

Macros

Functions

Variables

Detailed Description