高手请指教

只看该作者 · 2008-10-14 20:39

#include <REGX51.H>
#define TIMER0_COUNT OxEE11

const seven_seg[10]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90};
unsigned char timer0_tick,i=0;

static void timer0_isr(void) interrupt TF0_VECTOR using 1
{
TR0=0;
TL0=(TIMER0_COUNT & 0x00FF);
TH0=(TIMER0_COUNT>>8);
TR0=1;
timer0_tick++;
if (timer0_tick==200)
{
i++;
if(i==10)i=0;
timer0_tick=0;
P1=seven_seg;
}
}
static void timer0_initialize(void)
{
EA=0;
timer0_tick=0;
TR0=0;
TMOD=0x01;
TL0=(TIMER0_COUNT &0x00FF);
TH0=(TIMER0_COUNT>>8);
PT0=0;
ET0=1;
TR0=1;
EA=1;
}
void main (void)
{
timer0_initialize();
while(1);
}

这段程序为什么不能编译？？？？？？？
请解释下！