ticktimer.h
来自「这是CodeWarrior环境下基于freescale单片机上的实时操作系统代码」· C头文件 代码 · 共 28 行
H
28 行
#ifndef __TickTimer
#define __TickTimer
#define TIMER_INPUT_CLK (18874000)
#define TIMER_PRESCALER_SET 0 /* This value should never be lower than 1 */
/* Valid values for TIMER_PRESCALER_SET are listed below (DEC Column):
HEX DEC DIVISOR
000 0 1
001 1 2
010 2 4
011 3 8
100 4 16
101 5 32
110 6 64
111 7 128
*/
extern unsigned char TickTimer_Enable (void);
extern signed char TickTimer_SetFreqHz (short Freq);
interrupt void TickTimer_Interrupt(void);
#endif
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