c8051f020 的液晶驱动

/**************************************************************************************** LCD12864 ST7920控制芯片测试程序 本实验采用P3口和P0口驱动 实验时将跳线帽接至+3V ****************************************************************************************/ #include <c8051f020.h> #define uchar unsigned char #define uint unsigned int #include <intrins.h> #include <string.h> #include <stdio.h> #define uchar unsigned char #define uint unsigned int #define ulong unsigned long //------------------------------------ void PORT_Init (void); void delay(uint z); //----------------------------------- #define LCDBUS P3 sbit RS = P0^0; sbit RW = P0^1; sbit E = P0^2; sbit PSB = P0^3; sbit RST = P0^4; void PORT_Init (void) { XBR2 = 0x40; /*使能交叉开关*/ P3MDOUT =0xff; P0MDOUT =0xff; } /*******************************/ void delay(uint z) { uint x,y; for(x=0;x<z;x++) for(y=0;y<121;y++); } /*******************************/ uchar code symbo[]={ /*-- 调入了一幅图像：D:\guoq files\technic support\pic\128x32 Symbo.bmp --*/ /*-- 宽度x高度=128x32 --*/ 0x00,0x07,0xFF,0x00,0x00,0x00,0x00,0x00,0x1F,0xC0,0x00,0x1F,0xC0,0x03,0xE0,0x00, 0x00,0x04,0x01,0x00,0x00,0x00,0x00,0x00,0x10,0x20,0x00,0x20,0x40,0x04,0x10,0x00, 0x00,0x04,0x01,0x00,0x00,0x00,0x00,0x00,0x10,0x10,0x00,0x40,0x40,0x08,0x08,0x00, 0x00,0x04,0x01,0x00,0x00,0x00,0x00,0x00,0x10,0x08,0x00,0x80,0x40,0x08,0x08,0x00, 0x00,0x04,0x01,0x00,0x00,0x00,0x00,0x00,0x10,0x04,0x01,0x00,0x40,0x08,0x08,0x00, 0x00,0x04,0x01,0x00,0x00,0x00,0x00,0x00,0x10,0x02,0x02,0x00,0x40,0x08,0x08,0x00, 0x00,0x04,0x01,0x00,0x00,0x00,0x00,0x00,0x10,0x01,0x04,0x00,0x40,0x08,0x08,0x00, 0x00,0x04,0x01,0x00,0x00,0x00,0x00,0x00,0x08,0x00,0x88,0x00,0x80,0x04,0x10,0x00, 0x00,0x04,0x01,0x00,0x00,0x00,0x00,0x00,0x04,0x00,0x50,0x01,0x00,0x03,0xE0,0x00, 0x00,0x04,0x01,0x00,0x00,0x00,0x00,0x00,0x02,0x00,0x20,0x02,0x00,0x00,0x00,0x00, 0x1F,0xFC,0x01,0xFF,0xDF,0xFF,0xFF,0xFF,0xC1,0x00,0x00,0x04,0x00,0x00,0x00,0x00, 0x10,0x00,0x00,0x00,0x50,0x00,0x00,0x00,0x40,0x80,0x00,0x08,0x1F,0xFF,0xFF,0xF8, 0x10,0x00,0x00,0x00,0x50,0x00,0x00,0x00,0x40,0x40,0x00,0x10,0x10,0x00,0x00,0x08, 0x10,0x00,0x00,0x00,0x50,0x00,0x00,0x00,0x40,0x20,0x00,0x20,0x10,0x00,0x00,0x08, 0x10,0x00,0x00,0x00,0x50,0x00,0x00,0x00,0x40,0x10,0x00,0x40,0x10,0x00,0x00,0x08, 0x10,0x00,0x00,0x00,0x50,0x00,0x00,0x00,0x40,0x08,0x00,0x80,0x10,0x00,0x00,0x08, 0x10,0x00,0x00,0x00,0x50,0x00,0x00,0x00,0x40,0x10,0x00,0x40,0x10,0x00,0x00,0x08, 0x10,0x00,0x00,0x00,0x50,0x00,0x00,0x00,0x40,0x20,0x00,0x20,0x10,0x00,0x00,0x08, 0x10,0x00,0x00,0x00,0x50,0x00,0x00,0x00,0x40,0x40,0x00,0x10,0x10,0x00,0x00,0x08, 0x10,0x00,0x00,0x00,0x50,0x00,0x00,0x00,0x40,0x80,0x00,0x08,0x1F,0xFF,0xFF,0xF8, 0x1F,0xFC,0x01,0xFF,0xDF,0xFF,0xFF,0xFF,0xC1,0x00,0x00,0x04,0x00,0x00,0x00,0x00, 0x00,0x04,0x01,0x00,0x00,0x00,0x00,0x00,0x02,0x00,0x20,0x02,0x00,0x00,0x00,0x00, 0x00,0x04,0x01,0x00,0x00,0x00,0x00,0x00,0x04,0x00,0x50,0x01,0x00,0x03,0xE0,0x00, 0x00,0x04,0x01,0x00,0x00,0x00,0x00,0x00,0x08,0x00,0x88,0x00,0x80,0x04,0x10,0x00, 0x00,0x04,0x01,0x00,0x00,0x00,0x00,0x00,0x10,0x01,0x04,0x00,0x40,0x08,0x08,0x00, 0x00,0x04,0x01,0x00,0x00,0x00,0x00,0x00,0x10,0x02,0x02,0x00,0x40,0x08,0x08,0x00, 0x00,0x04,0x01,0x00,0x00,0x00,0x00,0x00,0x10,0x04,0x01,0x00,0x40,0x08,0x08,0x00, 0x00,0x04,0x01,0x00,0x00,0x00,0x00,0x00,0x10,0x08,0x00,0x80,0x40,0x08,0x08,0x00, 0x00,0x04,0x01,0x00,0x00,0x00,0x00,0x00,0x10,0x10,0x00,0x40,0x40,0x08,0x08,0x00, 0x00,0x04,0x01,0x00,0x00,0x00,0x00,0x00,0x10,0x20,0x00,0x20,0x40,0x04,0x10,0x00, 0x00,0x07,0xFF,0x00,0x00,0x00,0x00,0x00,0x1F,0xC0,0x00,0x1F,0xC0,0x03,0xE0,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }; //----------------------------------- // Delay Routine //----------------------------------- void delay100us(void) //delay TIMER1*1 ms for 12MHz { uchar data i; for(i=0;i<=10;i++) { _nop_(); _nop_(); } } void delayms( uint m ) // 12MHz Xtal, close to ms value { uint j; uint i; for(i=0; i<m; i++) for(j=0; j<109; j++) _nop_(); } void SdCmd(uchar Command) //send command { RS = 0; RW=0; LCDBUS = Command; E = 1; E = 0; delay100us(); } void SdData(uchar DData) //send display data { RS = 0; RS=1; RW=0; LCDBUS = DData; E = 1; E = 0; delay100us(); } uchar RdData() { uchar DData; RS = 0; RW = 1; RS=1; LCDBUS=0xff; E=1; DData = LCDBUS; E = 0; return(DData); } //-----西文写入函数---------------- void PrintASCII(uint x,y,uchar *pstr) //通用函数 { uint addr; y=y<<4; addr=y|0x80+x; SdCmd(addr); while(*pstr>0) { SdData(*pstr++); } } //----中文写入函数----------------- void PrintGB(uchar x,y,uchar *pstr) { uint addr; y=y<<4; addr=y|0x80+x; SdCmd(addr); while(*pstr>0) { SdData(*pstr++); delayms(300); //演示用 } } //----初始化函数----------------- void initLCM() { RST=0; delayms(5); RST=1; delayms(800); SdCmd(0x30); /* 设置工作方式(8位总线) */ SdCmd(0x06); /* 设置输入方式 */ SdCmd(0x0f); /* 设置显示方式 */ SdCmd(0x01); /* 清屏 */ delayms(2); } //----清屏函数------------------ void ClearRAM() { uchar i,j; SdCmd(0x34); for(i=0;i<32;i++) { SdCmd(i|0x80); SdCmd(0x80); for(j=0;j<16;j++) { SdData(0x00);// SdData(0x00); } } SdCmd(0x30); } //---- 画图函数----------------------------- void ShowBmp(uchar x,y, width,high,uchar *bmp) { uchar i,j; SdCmd(0x34); SdCmd(0x36); for(i=y;i<(y+high);i++) { if (i<32) { SdCmd(0x80|i); SdCmd(0x80|x); } else { SdCmd(0x80|(i-32)); SdCmd(0x80|(x+8)); } for(j=0;j<width;j++) { SdData(*bmp++); SdData(*bmp++); // } } SdCmd(0x30); } //---画点函数---------------- void Draw_Dot(uint x,y) { uchar m,n; uint k; if(y>=32) { y=y-32; x=x+128; } SdCmd(y|0x80); k=x/16; SdCmd(k|0x80); k=0x8000; k=k>>x%16; m=RdData(); m=RdData()|k>>8; n=RdData()|k; k=x/16; SdCmd(y|0x80); SdCmd(k|0x80); SdData(m); SdData(n); } //--- 画线函数--------------- void Draw_Line(uint x1,y1,x2,y2) { uint temp; int dalt_x,dalt_y,err=0; if (y1>y2) { temp=x1; x1=x2; x2=temp; temp=y1; y1=y2; y2=temp; } Draw_Dot(x1,y1); dalt_x=x2-x1; dalt_y=y2-y1; if(dalt_x>=0) { if(dalt_y>dalt_x)//k>1 { while(y1<y2) { if(err<0) { x1=x1+1; y1=y1+1; err=err+dalt_y-dalt_x; } else { y1=y1+1; err=err-dalt_x; } Draw_Dot(x1,y1); } } else // 0<=k=<1 { if (dalt_y==0) y1=y1-1; while(x1<x2) { if(err<0) { x1=x1+1; err=err+dalt_y; } else { y1=y1+1; x1=x1+1; err=err+dalt_y-dalt_x; } Draw_Dot(x1,y1); } } } else { dalt_x=x1-x2; if(dalt_y>dalt_x)//k<-1 { while(y1<y2) { if(err<0) { x1=x1-1; y1=y1+1; err=err+dalt_y-dalt_x; } else { y1=y1+1; err=err-dalt_x; } Draw_Dot(x1,y1); } } else //0>k>=-1 { if (dalt_y==0) y1=y1-1; while(x1>x2) { if(err<0) { x1=x1-1; err=err+dalt_y; } else { x1=x1-1; y1=y1+1;