基于C51实现的14 12864LCD图形滚动演示.zip

#include <stdio.h> #include <math.h> #include <intrins.h> #include <absacc.h> #include <string.h> #include "LCD_12864.h" sbit RESET = P3^3; uchar code LCD_WIDTH = 16; uchar code LCD_HEIGHT = 64; uchar gCurRow,gCurCol; uchar tCurRow,tCurCol; uchar ShowModeSW; uint txthome,grhome; uchar Status_BIT_01(); uchar Status_BIT_3(); 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); void cls(); uchar LCD_Initialise(); void Set_LCD_POS(uchar row,uchar col); 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; } 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; }