五脚18.8数码管显示
2024-05-18 22:08:15
五脚18.8数码管显示
今天抽空用将五脚的18.8数码管驱动程序研究了一下，将其过程记录如下：
数字1到5表示对应的数码管引脚，利用二极管的单向导通性来点亮单独的LED
数码管需要亮灯的高低电平点亮，不亮灯的IO口一定要设为高阻。
例如：点亮B3段，数码管2脚（单片机P3.3设置为推挽输出模式）高电平；数码管1脚（单片机P3.2设置为准双向口模式）低电平；在将P3.2设置为低电平输出就可以点亮B3段了；
自己总结：
高电平推挽输出模式；
低电平准双向口模式；
其余不亮的设置高阻输入模式；
用笨办法，一段一段点亮``，
以下是测试段位的测试程序：
# include <STC8G.H>
//3位6脚的，原理差不多，用笨办法，一段一段点亮，用switch，组成段码，小数点，STC8G1K08，接的P32-P36
/************************************************************************************/
#define DELAY 1 //设置每一个点显示的时间长度（1~20）
#define uchar unsigned char
#define uint unsigned intvoid delay (uint a)//延时{ uint i;while( a-- != 0){ for(i = 0; i < DELAY; i++); }
}/****测试段码函数*****/
void DG1()
{ P3M1 = 0xCF; P3M0 = 0x10; P3 = 0xDF; delay(x); //1BP3M1 = 0xD7; P3M0 = 0x08; P3 = 0xDF; delay(x); //1C P3M1 = 0xE7; P3M0 = 0x08; P3 = 0xEF; delay(x); //2AP3M1 = 0xE7; P3M0 = 0x10; P3 = 0xF7; delay(x); //2BP3M1 = 0xCF; P3M0 = 0x20; P3 = 0xEF; delay(x); //2CP3M1 = 0xD7; P3M0 = 0x20; P3 = 0xF7; delay(x); //2DP3M1 = 0xB7; P3M0 = 0x40; P3 = 0xF7; delay(x); //2EP3M1 = 0xAF; P3M0 = 0x40; P3 = 0xEF; delay(x); //2F P3M1 = 0x9F; P3M0 = 0x40; P3 = 0xDF; delay(x); //2G P3M1 = 0xF3; P3M0 = 0x04; P3 = 0xE7; delay(x); //3AP3M1 = 0xF3; P3M0 = 0x08; P3 = 0xFB; delay(x); //3BP3M1 = 0xEB; P3M0 = 0x04; P3 = 0xEF; delay(x); //3CP3M1 = 0xEB; P3M0 = 0x10; P3 = 0xFB; delay(x); //3DP3M1 = 0xDB; P3M0 = 0x04; P3 = 0xDF; delay(x); //3E P3M1 = 0xDB; P3M0 = 0x20; P3 = 0xFB; delay(x); //3FP3M1 = 0xBB; P3M0 = 0x40; P3 = 0xFB; delay(x); //3GP3M1 = 0xAF; P3M0 = 0x10; P3 = 0xBF; delay(x); //IP3M1 = 0xB7; P3M0 = 0x08; P3 = 0xBF; delay(x); //JP3M1 = 0x9F; P3M0 = 0x20; P3 = 0xBF; delay(x); //HP3M1 = 0xBB; P3M0 = 0x04; P3 = 0xBF; delay(x); //DP}void main (void){ //主程序 init();while (1){DG1(); //测试代码}
}
下面是将其用switch，组成段码，小数点；
从18.8倒减，
# include <STC8G.H>
单片机STC8G1K08，PIN1-PIN5接的P32-P36
/************************************************************************************/
#define DELAY 1 //设置每一个点显示的时间长度（1~20）
#define uchar unsigned char
#define uint unsigned int
uint TIME_SS=188;
uint C=0;
uint x=100;void delay (uint a)//延时{ uint i;while( a-- != 0){ for(i = 0; i < DELAY; i++); }
}
/************************************************************************************/
void init (void){ //上电初始化TMOD = 0x01; // 定时/计数器0,1工作于方式1 TH0 = 0xcd; // 预置产生50ms时基信号 TL0 = 0xd4; EA = 1; // 开总中断 ET0 = 1; // 定时/计数器0允许中断 TR0 = 1; // 开闭定时/计数器0
}/**第一位显示,只显示1**/void DG1(int a)
{P3M1 = 0xCF; P3M0 = 0x10; P3 = 0xDF; delay(x); //1BP3M1 = 0xD7; P3M0 = 0x08; P3 = 0xDF; delay(x); //1C
}/**第二位显示含小数点,只显示0.-9.**/void DG2(int a)
{switch(a){ case 0:{P3M1 = 0xE7; P3M0 = 0x08; P3 = 0xEF; delay(x); //2A //0.P3M1 = 0xE7; P3M0 = 0x10; P3 = 0xF7; delay(x); //2BP3M1 = 0xCF; P3M0 = 0x20; P3 = 0xEF; delay(x); //2CP3M1 = 0xD7; P3M0 = 0x20; P3 = 0xF7; delay(x); //2DP3M1 = 0xB7; P3M0 = 0x40; P3 = 0xF7; delay(x); //2EP3M1 = 0xAF; P3M0 = 0x40; P3 = 0xEF; delay(x); //2F P3M1 = 0xBB; P3M0 = 0x04; P3 = 0xBF; delay(x); //DP break;}case 1:{P3M1 = 0xE7; P3M0 = 0x10; P3 = 0xF7; delay(x); //2B //1.P3M1 = 0xCF; P3M0 = 0x20; P3 = 0xEF; delay(x); //2C P3M1 = 0xBB; P3M0 = 0x04; P3 = 0xBF; delay(x); //DP break;} case 2:{P3M1 = 0xE7; P3M0 = 0x08; P3 = 0xEF; delay(x); //2A //2.P3M1 = 0xE7; P3M0 = 0x10; P3 = 0xF7; delay(x); //2BP3M1 = 0xD7; P3M0 = 0x20; P3 = 0xF7; delay(x); //2DP3M1 = 0xB7; P3M0 = 0x40; P3 = 0xF7; delay(x); //2EP3M1 = 0x9F; P3M0 = 0x40; P3 = 0xDF; delay(x); //2G P3M1 = 0xBB; P3M0 = 0x04; P3 = 0xBF; delay(x); //DP break;} case 3:{P3M1 = 0xE7; P3M0 = 0x08; P3 = 0xEF; delay(x); //2A //3.P3M1 = 0xE7; P3M0 = 0x10; P3 = 0xF7; delay(x); //2BP3M1 = 0xCF; P3M0 = 0x20; P3 = 0xEF; delay(x); //2CP3M1 = 0xD7; P3M0 = 0x20; P3 = 0xF7; delay(x); //2DP3M1 = 0x9F; P3M0 = 0x40; P3 = 0xDF; delay(x); //2G P3M1 = 0xBB; P3M0 = 0x04; P3 = 0xBF; delay(x); //DP break;}case 4:{P3M1 = 0xE7; P3M0 = 0x10; P3 = 0xF7; delay(x); //2B //4.P3M1 = 0xCF; P3M0 = 0x20; P3 = 0xEF; delay(x); //2CP3M1 = 0xAF; P3M0 = 0x40; P3 = 0xEF; delay(x); //2F P3M1 = 0x9F; P3M0 = 0x40; P3 = 0xDF; delay(x); //2G P3M1 = 0xBB; P3M0 = 0x04; P3 = 0xBF; delay(x); //DP break;} case 5:{P3M1 = 0xE7; P3M0 = 0x08; P3 = 0xEF; delay(x); //2A //5.P3M1 = 0xCF; P3M0 = 0x20; P3 = 0xEF; delay(x); //2CP3M1 = 0xD7; P3M0 = 0x20; P3 = 0xF7; delay(x); //2DP3M1 = 0xAF; P3M0 = 0x40; P3 = 0xEF; delay(x); //2F P3M1 = 0x9F; P3M0 = 0x40; P3 = 0xDF; delay(x); //2GP3M1 = 0xBB; P3M0 = 0x04; P3 = 0xBF; delay(x); //DP break;} case 6:{P3M1 = 0xE7; P3M0 = 0x08; P3 = 0xEF; delay(x); //2A //6.P3M1 = 0xCF; P3M0 = 0x20; P3 = 0xEF; delay(x); //2CP3M1 = 0xD7; P3M0 = 0x20; P3 = 0xF7; delay(x); //2DP3M1 = 0xB7; P3M0 = 0x40; P3 = 0xF7; delay(x); //2EP3M1 = 0xAF; P3M0 = 0x40; P3 = 0xEF; delay(x); //2F P3M1 = 0x9F; P3M0 = 0x40; P3 = 0xDF; delay(x); //2G P3M1 = 0xBB; P3M0 = 0x04; P3 = 0xBF; delay(x); //DP break;} case 7:{P3M1 = 0xE7; P3M0 = 0x08; P3 = 0xEF; delay(x); //2A //7.P3M1 = 0xE7; P3M0 = 0x10; P3 = 0xF7; delay(x); //2BP3M1 = 0xCF; P3M0 = 0x20; P3 = 0xEF; delay(x); //2CP3M1 = 0xBB; P3M0 = 0x04; P3 = 0xBF; delay(x); //DP break;} case 8:{P3M1 = 0xE7; P3M0 = 0x08; P3 = 0xEF; delay(x); //2A //8.P3M1 = 0xE7; P3M0 = 0x10; P3 = 0xF7; delay(x); //2BP3M1 = 0xCF; P3M0 = 0x20; P3 = 0xEF; delay(x); //2CP3M1 = 0xD7; P3M0 = 0x20; P3 = 0xF7; delay(x); //2DP3M1 = 0xB7; P3M0 = 0x40; P3 = 0xF7; delay(x); //2EP3M1 = 0xAF; P3M0 = 0x40; P3 = 0xEF; delay(x); //2F P3M1 = 0x9F; P3M0 = 0x40; P3 = 0xDF; delay(x); //2GP3M1 = 0xBB; P3M0 = 0x04; P3 = 0xBF; delay(x); //DP break;} case 9:{ P3M1 = 0xE7; P3M0 = 0x08; P3 = 0xEF; delay(x); //2A //9.P3M1 = 0xE7; P3M0 = 0x10; P3 = 0xF7; delay(x); //2BP3M1 = 0xCF; P3M0 = 0x20; P3 = 0xEF; delay(x); //2CP3M1 = 0xD7; P3M0 = 0x20; P3 = 0xF7; delay(x); //2DP3M1 = 0xAF; P3M0 = 0x40; P3 = 0xEF; delay(x); //2F P3M1 = 0x9F; P3M0 = 0x40; P3 = 0xDF; delay(x); //2G P3M1 = 0xBB; P3M0 = 0x04; P3 = 0xBF; delay(x); //DP break;} }
}
/**第三位显示,只显示0-9**/void DG3(int a)
{switch(a){ case 0:{P3M1 = 0xF3; P3M0 = 0x04; P3 = 0xE7; delay(x); //3A //0P3M1 = 0xF3; P3M0 = 0x08; P3 = 0xFB; delay(x); //3BP3M1 = 0xEB; P3M0 = 0x04; P3 = 0xEF; delay(x); //3CP3M1 = 0xEB; P3M0 = 0x10; P3 = 0xFB; delay(x); //3DP3M1 = 0xDB; P3M0 = 0x04; P3 = 0xDF; delay(x); //3E P3M1 = 0xDB; P3M0 = 0x20; P3 = 0xFB; delay(x); //3Fbreak;} case 1:{ P3M1 = 0xF3; P3M0 = 0x08; P3 = 0xFB; delay(x); //3B //1P3M1 = 0xEB; P3M0 = 0x04; P3 = 0xEF; delay(x); //3Cbreak;}case 2:{P3M1 = 0xF3; P3M0 = 0x04; P3 = 0xE7; delay(x); //3A //2P3M1 = 0xF3; P3M0 = 0x08; P3 = 0xFB; delay(x); //3BP3M1 = 0xEB; P3M0 = 0x10; P3 = 0xFB; delay(x); //3DP3M1 = 0xDB; P3M0 = 0x04; P3 = 0xDF; delay(x); //3E P3M1 = 0xBB; P3M0 = 0x40; P3 = 0xFB; delay(x); //3Gbreak;} case 3:{P3M1 = 0xF3; P3M0 = 0x04; P3 = 0xE7; delay(x); //3A //3P3M1 = 0xF3; P3M0 = 0x08; P3 = 0xFB; delay(x); //3BP3M1 = 0xEB; P3M0 = 0x04; P3 = 0xEF; delay(x); //3CP3M1 = 0xEB; P3M0 = 0x10; P3 = 0xFB; delay(x); //3D P3M1 = 0xBB; P3M0 = 0x40; P3 = 0xFB; delay(x); //3Gbreak;} case 4:{ P3M1 = 0xF3; P3M0 = 0x08; P3 = 0xFB; delay(x); //3B //4P3M1 = 0xEB; P3M0 = 0x04; P3 = 0xEF; delay(x); //3C P3M1 = 0xDB; P3M0 = 0x20; P3 = 0xFB; delay(x); //3FP3M1 = 0xBB; P3M0 = 0x40; P3 = 0xFB; delay(x); //3Gbreak;} case 5:{P3M1 = 0xF3; P3M0 = 0x04; P3 = 0xE7; delay(x); //3A //5P3M1 = 0xEB; P3M0 = 0x04; P3 = 0xEF; delay(x); //3CP3M1 = 0xEB; P3M0 = 0x10; P3 = 0xFB; delay(x); //3DP3M1 = 0xDB; P3M0 = 0x20; P3 = 0xFB; delay(x); //3FP3M1 = 0xBB; P3M0 = 0x40; P3 = 0xFB; delay(x); //3Gbreak;} case 6:{P3M1 = 0xF3; P3M0 = 0x04; P3 = 0xE7; delay(x); //3A //6P3M1 = 0xEB; P3M0 = 0x04; P3 = 0xEF; delay(x); //3CP3M1 = 0xEB; P3M0 = 0x10; P3 = 0xFB; delay(x); //3DP3M1 = 0xDB; P3M0 = 0x04; P3 = 0xDF; delay(x); //3E P3M1 = 0xDB; P3M0 = 0x20; P3 = 0xFB; delay(x); //3FP3M1 = 0xBB; P3M0 = 0x40; P3 = 0xFB; delay(x); //3Gbreak;} case 7:{P3M1 = 0xF3; P3M0 = 0x04; P3 = 0xE7; delay(x); //3A //7P3M1 = 0xF3; P3M0 = 0x08; P3 = 0xFB; delay(x); //3BP3M1 = 0xEB; P3M0 = 0x04; P3 = 0xEF; delay(x); //3Cbreak;}case 8:{P3M1 = 0xF3; P3M0 = 0x04; P3 = 0xE7; delay(x); //3A //8P3M1 = 0xF3; P3M0 = 0x08; P3 = 0xFB; delay(x); //3BP3M1 = 0xEB; P3M0 = 0x04; P3 = 0xEF; delay(x); //3CP3M1 = 0xEB; P3M0 = 0x10; P3 = 0xFB; delay(x); //3DP3M1 = 0xDB; P3M0 = 0x04; P3 = 0xDF; delay(x); //3E P3M1 = 0xDB; P3M0 = 0x20; P3 = 0xFB; delay(x); //3FP3M1 = 0xBB; P3M0 = 0x40; P3 = 0xFB; delay(x); //3Gbreak;}case 9:{P3M1 = 0xF3; P3M0 = 0x04; P3 = 0xE7; delay(x); //3A //9P3M1 = 0xF3; P3M0 = 0x08; P3 = 0xFB; delay(x); //3BP3M1 = 0xEB; P3M0 = 0x04; P3 = 0xEF; delay(x); //3CP3M1 = 0xEB; P3M0 = 0x10; P3 = 0xFB; delay(x); //3D P3M1 = 0xDB; P3M0 = 0x20; P3 = 0xFB; delay(x); //3FP3M1 = 0xBB; P3M0 = 0x40; P3 = 0xFB; delay(x); //3Gbreak;} }
}/**第四位显示,点亮H段**/void DG4()
{P3M1 = 0x9F; P3M0 = 0x20; P3 = 0xBF; delay(x); //H
}/**第五位显示,点亮I段**/void DG5()
{P3M1 = 0xAF; P3M0 = 0x10; P3 = 0xBF; delay(x); //I
}/**第六位显示,点亮J段**/void DG6()
{P3M1 = 0xB7; P3M0 = 0x08; P3 = 0xBF; delay(x); //J
}void main (void){ //主程序 init();while (1){DG1(TIME_SS/100);DG2(TIME_SS%100/10);DG3(TIME_SS%100%10); DG4();DG5();DG6(); }
} /***********************************************************************************/
void tiem0(void) interrupt 1 // 中断服务程序(产生500ms时基信号) { C++; if(C>50){ C = 0; TIME_SS--; if(TIME_SS <0){ TIME_SS = 188; } } TH0 = 0xcd; TL0 = 0xd4;
}
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