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这段代码的主要功能是通过控制位选锁存器和段选锁存器来实现对数码管的选择和显示。具体的显示内容由 leddata 数组中的值决定，根据 Location 和 Number 的不同，可以显示不同的字符或数字。
#include <REGX52.H>#define uchar unsigned char //宏定义
#define uint unsigned int //宏定义sbit we = P2^7; //位定义数码管位选锁存器接口
sbit du = P2^6; //位定义数码管段选锁存器接口uchar code leddata[] = { 0x3F, //"0"0x06, //"1"0x5B, //"2"0x4F, //"3"0x66, //"4"0x6D, //"5"0x7D, //"6"0x07, //"7"0x7F, //"8"0x6F, //"9"0x77, //"A"0x7C, //"B"0x39, //"C"0x5E, //"D"0x79, //"E"0x71, //"F"0x76, //"H"0x38, //"L"0x37, //"n"0x3E, //"u"0x73, //"P"0x5C, //"o"0x40, //"-"0x00, //熄灭};void Nixie(unsigned char Location, Number)
{switch (Location){ case 0 :0xFE;break;case 1 :0xFD;break;case 2 :0xFB;break;case 3 :0xF7;break;case 4 :0xEF;break;case 5 :0xDF;break;case 6 :0xBF;break;case 7 :0x7F;break;}P0 = leddata[Number];
}#include <REGX52.H>#define uchar unsigned char //宏定义
#define uint unsigned int //宏定义sbit we = P2^7; //位定义数码管位选锁存器接口
sbit du = P2^6; //位定义数码管段选锁存器接口uchar code leddata[] = { 0x3F, //"0"0x06, //"1"0x5B, //"2"0x4F, //"3"0x66, //"4"0x6D, //"5"0x7D, //"6"0x07, //"7"0x7F, //"8"0x6F, //"9"0x77, //"A"0x7C, //"B"0x39, //"C"0x5E, //"D"0x79, //"E"0x71, //"F"0x76, //"H"0x38, //"L"0x37, //"n"0x3E, //"u"0x73, //"P"0x5C, //"o"0x40, //"-"0x00, //熄灭};void Nixie(unsigned char Location, Number)
{switch (Location){ case 0 :0xFE;break;case 1 :0xFD;break;case 2 :0xFB;break;case 3 :0xF7;break;case 4 :0xEF;break;case 5 :0xDF;break;case 6 :0xBF;break;case 7 :0x7F;break;}P0 = leddata[Number];
}void main()
{du = 1; //打开段选P0 = leddata[1]; //显示1du = 0; //关闭段选Nixie(6,2);we = 1;//打开位选P0 = 0xfe;//左边第一位数码管显示we = 0; //关闭位选while(1);//程序停留
}#include <REGX52.H>#define uchar unsigned char //宏定义
#define uint unsigned int //宏定义sbit we = P2^7; //位定义数码管位选锁存器接口
sbit du = P2^6; //位定义数码管段选锁存器接口void Delay(unsigned int xms){unsigned char i, j;while(xms--){i = 2;j = 239;do{while(--j);}while(--i);}
}uchar code leddata[] = { 0x3F, //"0"0x06, //"1"0x5B, //"2"0x4F, //"3"0x66, //"4"0x6D, //"5"0x7D, //"6"0x07, //"7"0x7F, //"8"0x6F, //"9"0x77, //"A"0x7C, //"B"0x39, //"C"0x5E, //"D"0x79, //"E"0x71, //"F"0x76, //"H"0x38, //"L"0x37, //"n"0x3E, //"u"0x73, //"P"0x5C, //"o"0x40, //"-"0x00, //熄灭};void Nixie(unsigned char Location, int Number)
{int key = 0xFE;du = 1; //打开段选P0 = leddata[Number]; //显示1du = 0; //关闭段选switch (Location){ case 0 :key = 0xFE;break;case 1 :key = 0xFD;break;case 2 :key = 0xFB;break;case 3 :key = 0xF7;break;case 4 :key = 0xEF;break;case 5 :key = 0xDF;break;case 6 :key = 0xBF;break;case 7 :key = 0x7F;break;}we = 1;//打开位选P0 = key;//左边第一位数码管显示we = 0; //关闭位选Delay(1000);
}void main()
{ int i; for(i=0;i<8;i++) Nixie(i,i+1);while(1);//程序停留
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