system_ARMCM4.h File Reference

CMSIS Cortex-M4 Device System Header File for CM4 Device Series. More...

Go to the source code of this file.

Functions
void	SystemInit (void)
	Setup the microcontroller system. Initialize the System and update the SystemCoreClock variable. More...
void	SystemCoreClockUpdate (void)
	Updates the SystemCoreClock with current core Clock retrieved from cpu registers. More...

Variables
uint32_t	SystemCoreClock

Detailed Description

CMSIS Cortex-M4 Device System Header File for CM4 Device Series.

Version

V1.05

Date

19. July 2011

Note

Copyright (C) 2010-2011 ARM Limited. All rights reserved.

ARM Limited (ARM) is supplying this software for use with Cortex-M processor based microcontrollers. This file can be freely distributed within development tools that are supporting such ARM based processors.

THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. ARM SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.

Function Documentation

void SystemCoreClockUpdate

(

void

)

Updates the SystemCoreClock with current core Clock retrieved from cpu registers.

Update SystemCoreClock variable

Parameters

none

Returns

none

void SystemInit

(

void

)

Setup the microcontroller system. Initialize the System and update the SystemCoreClock variable.

Initialize the system

Parameters

none

Returns

none

Setup the microcontroller system. Initialize the System and update the SystemCoreClock variable.

Initialize the system

Parameters

none

Returns

none

Setup the microcontroller system. Initialize the System and update the SystemCoreClock variable.

Variable Documentation

uint32_t SystemCoreClock

System Clock Frequency (Core Clock)