lcd上显示电压程序.doc

在lab2000上实验版上实现电压在液晶上显示C51程序 液晶使用的控制器是sed1520 122X32#include #include #define xiezhi XBYTE0x8000#define xieshuju XBYTE0x8001#define duzhi XBYTE0x8002#define xiezhi2 XBYTE0x8004#define xieshuju2 XBYTE0x8005#define duzhi2 XBYTE0x8006#define adport XBYTE0x9000unsigned char buf3; unsigned char code tab18= 0x00,0x00,0x00,0x7E,0x81,0x81,0x81, 0x7e, /*0*/0x00,0x00,0x00,0x00,0x00,0x82,0xff,0x80, /*1*/0x00,0x00,0x00,0xc6,0xa1,0x91,0x89,0xc6, /*2*/0x00,0x00,0x00,0x42,0x81,0x81,0x99,0x66, /*3*/0x00,0x00,0x00,0x1f,0x10,0xff,0x10,0x10, /*4*/0x00,0x00,0x00,0x4F,0x89,0x89,0x89,0x79, /*5*/0x00,0x00,0x00,0x7E,0x89,0x89,0x89,0x72, /*6*/0x00,0x00,0x00,0x01,0x01,0xF9,0x05,0x03, /*7*/0x00,0x00,0x00,0x76,0x89,0x89,0x89,0x76, /*8*/0x00,0x00,0x00,0x4E,0x91,0x91,0x91,0x7E /*9*/;unsigned char code tab2=0x00,0x00,0x00, 0xc0, 0x00,0x00 ;unsigned char code tab332= 0x00,0xf8,0x48,0x48,0x48,0x48,0xff,0x48, 0x48,0x48,0x48,0xfc,0x08,0x00,0x00,0x00, 0x00,0x07,0x02,0x02,0x02,0x02,0x3f,0x42, /*电压*/ 0x42,0x42,0x42,0x47,0x40,0x70,0x00,0x00, 0x00,0x00,0xfe,0x02,0x82,0x82,0x82,0x82, 0xfe,0x82,0x82,0x82,0xc3,0x82,0x00,0x00, 0x40,0x30,0x0f,0x40,0x40,0x40,0x40,0x40, 0x7f,0x40,0x42,0x44,0x4c,0x60,0x40,0x00, 0x80,0x40,0x20,0xf8,0x27,0x20,0x20,0x20, /*伏*/ 0x20,0xff,0x20,0x24,0x28,0x38,0x20,0x00, 0x00,0x00,0x00,0xff,0x80,0x40,0x20,0x18, 0x06,0x01,0x06,0x18,0x60,0xc0,0x40,0x00 ;void writezhi(unsigned char command) while(duzhi&0x80); xiezhi=command; void writeshuju(unsigned char lcddata) while(duzhi&0x80); xieshuju=lcddata; void writezhi2(unsigned char command) while(duzhi2&0x80); xiezhi2=command; void writeshuju2(unsigned char lcddata) while(duzhi2&0x80); xieshuju2=lcddata; void init() writezhi(0xe2); writezhi2(0xe2); writezhi(0xa4); writezhi2(0xa4); /*初始化*/ writezhi(0xa9); writezhi2(0xa9); writezhi(0xa0); writezhi2(0xa0); writezhi(0xc0); writezhi2(0xc0); writezhi(0xaf); writezhi2(0xaf); void clear() unsigned char i,j; i=0; do writezhi(i+0xb8); writezhi2(i+0xb8); writezhi(0x00); writezhi2(0x00); j=0x50; do writeshuju(0x00); writeshuju2(0x00); while(-j!=0); while(+i!=4); unsigned char readad() unsigned char i; adport=0; /*启动A/D转换*/ for(i=0;i20;i+); /*延时大概100us*/ return(adport); /*读回ad值*/ void main() unsigned char k, x, y,z; /*主程序*/init(); /*lcd initiation*/clear(); /*clear zero*/while(1) z=readad();buf0=z/51;buf1=(z%50)/5;buf2=(z%50)%5;writezhi2(0xba);for(x=0;x8;x+) writezhi2(x);writeshuju2(tab1buf0x); /*个位显示*/for(x=0;x6;x+) writezhi2(8+x);writeshuju2(tab2x); /*小数点*/for(x=0;x8;x+) writezhi2(14+x);writeshuju2(tab1buf1x); /*十分位*/for(x=0;x8;x+) writezhi2(22+x);writeshuju2(tab1buf2x); /*百分位*/for(x=0;x16;x+)writezhi2(33+x); /*伏*/writeshuju2(tab32x);writezhi2(0xbb); for(x=0;x16;x+)writezhi2(33+x);writeshuju2(tab32x+16);for(k=0;k2;k+) writezhi(0xba+k);for(x=0;x