timer.h

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/*************************************************************************
    > File Name: cpu/timer.h
      > Author: Netcan
      > Blog: http://www.netcan666.com
      > Mail: 1469709759@qq.com
      > Created Time: 2018-07-11 Wed 22:04:30 CST
 ************************************************************************/

#include <io.h>
#ifndef TIMER_H
#define TIMER_H
#define TIMER_CHANNEL_DATA_0 0x40 
#define TIMER_CHANNEL_DATA_1 0x41 
#define TIMER_CHANNEL_DATA_2 0x42 
#define TIMER_CONTROL   0x43    
#define MAX_FREQ 1193180    

extern u32 tick;
void init_timer(u32 freq);

#endif