这个单片机矩阵按键控制静态数码管程序编译报错
如下这段程序，是4*4的矩阵按键控制静态数码管的程序，编译时报错，编译不过；提示“speaker.c(4): error C247: non-address/-constant initializer” 如图所示，请问问题出在哪呢？感谢！
单片机源程序如下:
#include <reg52.h>
#define uint unsigned int
#define uchar unsigned char
uchar LED=P0,KEY=P1;
uchar KEY_VALUE;
uchar code DM[16]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,
0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71}; //显示0-F;
void delay(uint i)
{
while(i--);
}
void KEY_PRESS(void)
{
int a=0;
KEY=0x0F;
if(KEY!=0x0F)
{
delay(10000);
if(KEY!=0x0F)
{
switch(KEY)
{
case 0x07:KEY_VALUE=0;break;
case 0x0b:KEY_VALUE=1;break;
case 0x0d:KEY_VALUE=2;break;
case 0x0e:KEY_VALUE=3;break;
}
KEY=0xF0;
if(KEY!=0xF0)
{
switch(KEY)
{
case 0x70:KEY_VALUE=KEY_VALUE;break;
case 0xb0:KEY_VALUE=KEY_VALUE+4;break;
case 0xd0:KEY_VALUE=KEY_VALUE+8;break;
case 0xe0:KEY_VALUE=KEY_VALUE+12;break;
}
}
while((a<50)&&(KEY!=0xF0))
{
delay(1000);
a++;
}
}
}
}
void main()
{
while(1)
{
KEY_PRESS();
LED=~DM[KEY_VALUE];
}
}
|
