main.h

p89lpc915程序

#ifndef _MAIN_H
#define _MAIN_H
#include <REG932.H>

typedef unsigned char uchar;
typedef unsigned int uint;
typedef unsigned long ulong;

typedef unsigned char byte;
typedef unsigned short int word;
typedef unsigned long dword;

#define MSB(x)	(((x)&0xff00)>>8)
#define LSB(x)	((x)&0xff)

#define FREQ_OSC 7372800    /* Oscillator frequency of 7.3728 MHz */
#define CCLK FREQ_OSC
#define PCLK (CCLK / 2)

#define TIMER0_RELOAD_VALUE (0xFFFF - (PCLK/100))	/*100Hz*/
#define TIMER0_RELOAD_HIGH MSB(TIMER0_RELOAD_VALUE)
#define TIMER0_RELOAD_LOW LSB(TIMER0_RELOAD_VALUE)


#endif