timer.h

ARM公司ATC培训的所有练习源码

#ifndef TIMER_H_
#define TIMER_H_

void SysTick_init(void);
void SysTickHandler(void);

//SysTick Registers
#define SysTickCtrl  (volatile int*)0xE000E010
#define SysTickLoad  (volatile int*)0xE000E014
#define SysTickValue (volatile int*)0xE000E018
#define SysTickCalib (volatile int*)0xE000E01c

//SysTick Masks
#define SysTickCountFlag (1<<16)
#define SysTickClkSource (1<<2)
#define SysTickInterrupt (1<<1)
#define SysTickEnable    (1<<0)

#endif /*TIMER_H_*/