使用C51分别点亮8*8LED点阵和8*8LED点阵

/**************************************************************************************/ /*任务要求：16*16LED点阵显示屏（共阴）滚动显示汉字“欢迎学习” */ /*硬件连接：16*16LED点阵16根列编码线接P2口和P3口 */ /* 由P1.0~P1.3经74HC154译码（低电平有效）后，再经74HC07同相驱动后作为16根行线*/ /**************************************************************************************/ #include<reg51.h> #define uchar unsigned char #define uint unsigned int uchar code row[]={0xf0,0xf1,0xf2,0xf3,0xf4,0xf5,0xf6,0xf7,0xf8,0xf9,0xfa,0xfb,0xfc,0xfd,0xfe,0xff}; uchar code string[]= { //汉字“欢"的16 x 16点阵的列码 0x00,0x80,0x00,0x80,0xFC,0x80,0x04,0xFC, 0x45,0x04,0x46,0x48,0x28,0x40,0x28,0x40, 0x10,0x40,0x28,0x40,0x24,0xA0,0x44,0xA0, 0x81,0x10,0x01,0x08,0x02,0x0E,0x0C,0x04, //汉字“迎”的16 x 16点阵的列码 0x00,0x00,0x41,0x84,0x26,0x7E,0x14,0x44, 0x04,0x44,0x04,0x44,0xF4,0x44,0x14,0xC4, 0x15,0x44,0x16,0x54,0x14,0x48,0x10,0x40, 0x10,0x40,0x28,0x46,0x47,0xFC,0x00,0x00, //汉字"学“的16x16点阵的列码 0x22,0x08,0x11,0x08,0x11,0x10,0x00,0x20, 0x7F,0xFE,0x40,0x02,0x80,0x04,0x1F,0xE0, 0x00,0x40,0x01,0x84,0xFF,0xFE,0x01,0x00, 0x01,0x00,0x01,0x00,0x05,0x00,0x02,0x00, //汉字“习“的16x 16点阵的列码 0x00,0x00,0x00,0x04,0xFF,0xFE,0x00,0x04, 0x08,0x04,0x04,0x04,0x02,0x04,0x02,0x24, 0x00,0xC4,0x03,0x04,0x0C,0x04,0x30,0x04, 0x10,0x04,0x00,0x44,0x00,0x28,0x00,0x10, }; void delay1ms(uint xms) //延时函数 { uint i,j; for(i=0;i<xms;i++) for(j=0;j<100;j++); } void main() //主函数 { uchar i,n,j; while(1) { for(j=0;j<4;j++) //共显示4个汉字 { for(n=0;n<40;n++ ) { for(i=0;i<16;i++) { //P1=i%16;//扫描码 P1=row[i]; P3=string[i*2+1+j*32];//列码 P2=string[i*2+j*32]; //列码 delay1ms(2); P2=0x00; P3=0x00; } } } } }