单片机C语言程序设计实训100例

#include <stdarg.h> #include <stdio.h> #include <math.h> #include <intrins.h> #include <absacc.h> #include <string.h> #include <LCD_160128.h> sbit RESET = P3^3; #define ASC_CHR_WIDTH 8 #define ASC_CHR_HEIGHT 12 #define HZ_CHR_HEIGHT 12 #define HZ_CHR_WIDTH 12 uchar code LCD_WIDTH = 20; uchar code LCD_HEIGHT= 128; uchar code ASC_MSK[96*12]= { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, }; uchar gCurRow,gCurCol; uchar tCurRow,tCurCol; uchar ShowModeSW; uint txthome,grhome; uchar Status_BIT_01(); uchar Status_BIT_3(); uchar GetCol(); uchar GetRow(); uchar LCD_Write_Command(uchar cmd); uchar LCD_Write_Command_P1(uchar cmd,uchar para1); uchar LCD_Write_Command_P2(uchar cmd,uchar para1,uchar para2); uchar LCD_Write_Data(uchar dat); uchar LCD_Read_Data(); void cls(); uchar LCD_Initialise(); void Set_LCD_POS(uchar row,uchar col); void charout(uchar *str); uchar dprintf(uchar x,uchar y,uchar *fmt); void OutToLCD(uchar Dat,uchar x,uchar y); void Line(uchar x1,uchar y1,uchar x2,uchar y2,bit Mode); void Pixel(uchar x,uchar y,bit Mode); uchar Status_BIT_01() { uchar i; for(i=5;i>0;i--) { if((LCMCW & 0x03)==0x03) break; } return i; } uchar Status_BIT_3() { uchar i; for(i=5;i>0;i--) { if((LCMCW & 0x08)==0x08) break; } return i; } uchar LCD_Write_Command_P2(uchar cmd,uchar para1,uchar para2) { if(Status_BIT_01()==0) return 1; LCMDW = para1; if(Status_BIT_01()==0) return 2; LCMDW = para2; if(Status_BIT_01()==0) return 3; LCMDW = cmd; return 0; } uchar LCD_Write_Command_P1(uchar cmd,uchar para1) { if(Status_BIT_01()==0) return 1; LCMDW = para1; if(Status_BIT_01()==0) return 2; LCMDW = cmd; return 0; } uchar LCD_Write_Command(uchar cmd) { if(Status_BIT_01()==0) return 1; LCMDW = cmd; return 0; } uchar LCD_Write_Data(uchar dat) { if(Status_BIT_3()==0) return 1; LCMDW = dat; return 0; } uchar LCD_Read_Data() { if(Status_BIT_01()==0) return 1; return LCMDW; } void Set_LCD_POS(uchar row,uchar col) { uint Pos; Pos = row*LCD_WIDTH+col; LCD_Write_Command_P2(LC_ADD_POS,Pos%256,Pos/256); gCurRow = row; gCurCol = col; } void cls() { uint i; LCD_Write_Command_P2(LC_ADD_POS,0x00,0x00); LCD_Write_Command(LC_AUT_WR); for(i=0;i<0x2000;i++) { Status_BIT_3(); LCD_Write_Data(0x00); } LCD_Write_Command(LC_AUT_OVR); LCD_Write_Command_P2(LC_ADD_POS,0x00,0x00); gCurRow = 0; gCurCol = 0; } uchar LCD_Initialise() { RESET = 0; RESET = 1; LCD_Write_Command_P2(LC_TXT_STP,0x00,0x00); LCD_Write_Command_P2(LC_TXT_WID,LCD_WIDTH,0x00); LCD_Write_Command_P2(LC_GRH_STP,0x00,0x00); LCD_Write_Command_P2(LC_GRH_WID,LCD_WIDTH,0x00); LCD_Write_Command_P1(LC_CGR_POS,CGRAMSTART >> 11); LCD_Write_Command(LC_CUR_SHP | 0x01); LCD_Write_Command(LC_MOD_OR); LCD_Write_Command(LC_DIS_SW | 0x08); grhome = GRSTART; txthome = TXTSTART; return 0; } uchar Display_Str_at_xy(uchar x,uchar y,uchar *fmt) { char c1,c2,cData; uchar i=0,j,uLen; uLen = strlen(fmt); while(i<uLen) { c1 = fmt[i]; c2 = fmt[i+1]; Set_LCD_POS(y,x/8); if(c1>=0) { if(c1<0x20) { switch(c1) { case CR: case LF: i++; x=0; if(y<112) y+=HZ_CHR_HEIGHT; continue; case BS: i++; if(y>ASC_CHR_WIDTH) y-=ASC_CHR_WIDTH; cData=0x00; break; } } for(j=0;j<ASC_CHR_HEIGHT;j++) { if(c1>=0x1f) { cData = ASC_MSK[(c1-0x1f)*ASC_CHR_HEIGHT+j]; Set_LCD_POS(y+j,x/8); if((x%8)==0) { LCD_Write_Command(LC_AUT_WR); LCD_Write_Data(cData); LCD_Write_Command(LC_AUT_OVR); } else OutToLCD(cData,x,y+j); } Set_LCD_POS(y+j,x/8); } if(c1!=BS) x+=ASC_CHR_WIDTH; } i++; } return uLen; } void OutToLCD(uchar Dat,uchar x,uchar y) { uchar dat1,dat2,a,b; b = x%8; a = 8-b; Set_LCD_POS(y,x/8); LCD_Write_Command(LC_AUT_RD); dat1 = LCD_Read_Data(); dat2 = LCD_Read_Data(); dat1 = (dat1 &(0xff<<a)) | (Dat>>b); dat2 = (dat1 &(0xff>>b)) | (Dat<<a); LCD_Write_Command(LC_AUT_OVR); Set_LCD_POS(y,x/8); LCD_Write_Command(LC_AUT_WR); LCD_Write_Data(dat1); LCD_Write_Data(dat2); LCD_Write_Command(LC_AUT_OVR); } void Pixel(uchar x,uchar y,bit Mode) { uchar start_addr,dat; start_addr=7-(x%8); dat = LC_BIT_OP | start_addr; if(Mode) dat |= 0x08; Set_LCD_POS(y,x/8); LCD_Write_Command(LC_BIT_OP | dat); } void Exchange(uchar *a,uchar *b) { uchar t; t = *a;*a = *b;*b = t; } void Line(uchar x1,uchar y1,uchar x2,uchar y2,bit Mode) { uchar x,y; float k,b; if(abs(y1-y2)<=abs(x1-x2)) { k=(float)(y1-y2)/(float)(x2-x1); b=y1-k*x1; if(x1>x2) Exchange(&x1,&x2); for(x=x1;x<=x2;x++) { y=(uchar)(k*x+b); Pixel(x,y,Mode); } } else { k=(float)(x2-x1)/(float)(y2-y1); b=x1-k*y1; if(y1>y2) Exchange(&y1,&y2); for(y=y1;y<=y2;y++) { x=(uchar)(k*y+b); Pixel(x,y,Mode); } } }