#include<iom16v.h>
#include<macros.h>
#define uchar unsigned char
#define uint unsigned int
uchar unm[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};
uchar unm1[]={0x01,0x02,0x04,0x08};
uchar wei[]={0,0,0,0};
void init(void)
{
DDRB=0XFF;
DDRC=0X0F;
}
void xianshi(uchar a)
{
uchar i;
wei[3]=a/1000;
wei[2]=a%1000/100;
wei[1]=a%100/10;
wei[0]=a%10;
for(i=0;i<4;i++)
{
PORTB=unm[wei];
PORTC=unm1;
}
}
void EEPROM_write(uint a,uint b)
{
SREG&=~BIT(7);
while(EECR&BIT(EEWE));
EEAR=a;
EEDR=b;
EECR|BIT(EEMWE);
EECR|=BIT(EEWE);
SREG|=BIT(7);
}
uchar EEPROM_read(uint c)
{
uchar s;
SREG&=~BIT(7);
while(EECR&BIT(EEWE));
EEAR=c;
EECR|=BIT(EERE);
s=EEDR;
return s;
}
void main(void)
{
uchar e;
init();
e=EEPROM_read(2);
e++;
EEPROM_write(2,e);
while(1)
{
xianshi(e);
}
}
为什么无反应？
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