急需
单片机是AT89C52，这是要仿真吧，那就先画出仿真图，确定什么数码管，才能写程序。下图是用四位一体的共阴数码管画的仿真图，P0口输出段码，P2输出位码。
温馨提示：答案为网友推荐，仅供参考
第1个回答 2019-10-16
#include<reg51.h>
#define uchar unsigned char
uchar code table[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0x88,0x83,0xc6,0xa1,0x86,0x8e};//共阳级数码管码表0-F
void delay(uchar a)
{
uchar i;
while(a--)for(i=0;i<120;i++);
}
main()
{
uchar i;
while(1)
{
for(i=0;i<4;i++)
{
P0=table[i];
delay(5);
}
}
}
#define uchar unsigned char
uchar code table[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0x88,0x83,0xc6,0xa1,0x86,0x8e};//共阳级数码管码表0-F
void delay(uchar a)
{
uchar i;
while(a--)for(i=0;i<120;i++);
}
main()
{
uchar i;
while(1)
{
for(i=0;i<4;i++)
{
P0=table[i];
delay(5);
}
}
}
