單片機lcd畫圖

❶ 急求基於51單片機的LCD顯示實時數據曲線!!

先實現劃線的函數，把相鄰的采樣點轉化為屏幕坐標之後，連接起來就可以了，下面劃線函數可以作為參考

void Line(char x1,char y1,char x2,char y2)
{
char xdelta; // width of rectangle around line
char ydelta; // height of rectangle around line
char xinc; //increment for moving x coordinate
char yinc; //increment for moving y coordinate
char rem; //current remainder
//Bool bit = 0;//used for dashed lines
char s,e; //Start,End
//See if the line is horizontal or vertical. If so, then call special routines.
if (y1 == y2)
{ //draw a horizontal line
if(x1 > x2 ) s = x2,e = x1;
else s = x1,e = x2;
for(; s <= e; s++) SetPixel(s,y1,1);
}
else if (x1 == x2)
{//draw a vertical line
if(y1 > y2 ) s = y2,e = y1;
else s = y1,e = y2;
for(; s <= e; s++) SetPixel(x1,s,1);
}
else
{// The line may be partially obscured. Do the draw line algorithm
// checking each point against the clipping regions.
xdelta = x2 - x1;
ydelta = y2 - y1;
if (xdelta < 0) xdelta = -xdelta;
if (ydelta < 0) ydelta = -ydelta;
xinc = (x2 > x1)? 1 : -1;
yinc = (y2 > y1)? 1 : -1;
// draw the first point
//SetPixel( x1, y1, 1);
if (xdelta >= ydelta)
{
rem = xdelta / 2;
for (;x1 != x2; x1 += xinc)
{
SetPixel(x1, y1,1);
rem += ydelta;
if (rem >= xdelta){
rem -= xdelta;
y1 += yinc;
}
}
}
else
{
rem = ydelta / 2;
for (;y1 != y2; y1 += yinc)
{
SetPixel(x1, y1,1);
rem += xdelta;
if (rem >= ydelta) {
rem -= ydelta;
x1 += xinc;
}
}
}
}
g_nCoordinateX = x2;//
g_nCoordinateY = y2;
}

❷ 20分!給個51單片機圖像液晶程序

#include <reg52.h>

#define uint unsigned int
#define uchar unsigned char
#define x1 0x80
#define x2 0x88
#define y 0x80
#define comm 0
#define dat 1

sbit cs = P0^0;
sbit std = P0^1;
sbit sclk = P0^2;
sbit psb = P0^3; //H=並口; L=串口;
sbit rst = P0^4; //Reset Signal 低電平有效

void wr_lcd (uchar dat_comm,uchar content);
void delay (uint us);

uchar code tab1[]={
"本系列中文模塊內"
"任意位置反白顯示"
"置二級字型檔，可在"
"使用更方便更靈活"
};

uchar code tab31[]={
"金鵬科技有限公司"
"Golden Palm TECH"
};
uchar code tab32[]={
/*-- 調入了一幅圖像：F:\梁\畫圖\HOCO12832.bmp --*/
/*-- 寬度x高度=128x32 --*/
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x1E,0x00,0x00,0x00,0x00,0x00,0x07,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x7F,0x80,0x00,0x00,0x00,0x00,0x18,0x0C,0x00,0x00,0x01,0x00,0x00,0x00,0x00,
0x01,0xFF,0x80,0x00,0x00,0x00,0x00,0x20,0x00,0x00,0x00,0x13,0x10,0x03,0xFE,0x00,
0x03,0xFF,0xC0,0x00,0x00,0x00,0x00,0x58,0x00,0x00,0x00,0x3F,0x30,0x1F,0xFF,0xC0,
0x03,0xFF,0xE0,0x00,0x00,0x00,0x00,0x8C,0x03,0xF0,0x00,0x7F,0xE0,0x7C,0x01,0xE0,
0x03,0xFF,0xF0,0x00,0x00,0x00,0x01,0x36,0x06,0xC0,0x00,0x5F,0xC0,0xFF,0xFC,0x60,
0x01,0xFF,0xF0,0x00,0x00,0x00,0x02,0x1B,0x0F,0x80,0x00,0xFF,0x01,0xFE,0x0F,0x30,
0x00,0xEF,0xF0,0x00,0x00,0x00,0x02,0x6D,0x9F,0x00,0x00,0x3E,0x03,0xFF,0xF1,0x90,
0x00,0xFF,0xF8,0x00,0x00,0x00,0x04,0x36,0xFE,0x00,0x01,0xFF,0x07,0xFF,0xFC,0x90,
0x00,0xEF,0xFF,0xFF,0x80,0x00,0x04,0xDB,0x7E,0x00,0x03,0xFF,0x87,0xFF,0xFC,0xD0,
0x00,0x0F,0xFF,0xFF,0xC0,0x00,0x04,0x6D,0xFC,0x00,0x07,0xFF,0x8F,0xFF,0xFE,0x50,
0x00,0x0F,0xFF,0xFF,0xE0,0x00,0x04,0x36,0xFC,0x10,0x07,0xFF,0x8F,0xFF,0xFE,0x90,
0x00,0x0F,0xFF,0xFF,0xE0,0x00,0x04,0x1B,0xF8,0x10,0x07,0xFF,0xCF,0xFF,0xFE,0x80,
0x00,0x0F,0xFF,0xFF,0xF0,0x00,0x04,0x0F,0xF8,0x10,0x07,0xFF,0xFF,0xFF,0xFA,0x00,
0x00,0x07,0xFF,0xFF,0xF0,0x00,0x04,0x07,0xF0,0x10,0x07,0xFF,0xFF,0xFF,0xFA,0x00,
0x00,0xFF,0xFF,0xFF,0xF8,0x00,0x02,0x03,0xF0,0x20,0x07,0xFF,0xFF,0xFF,0xBA,0x00,
0x00,0xFD,0xFF,0xFF,0xFC,0x00,0x02,0x03,0xF0,0x20,0x03,0xFF,0xFF,0xDF,0xB8,0x00,
0x00,0xC1,0xC0,0x3F,0xFC,0x00,0x01,0x01,0xE0,0x40,0x00,0xFF,0xFF,0xDF,0xB0,0x00,
0x00,0x81,0xC0,0x3F,0xCE,0x00,0x00,0x81,0xE0,0x80,0x00,0x7F,0xFF,0xDF,0xA0,0x00,
0x00,0x81,0x80,0x1D,0xCF,0x00,0x00,0x41,0xE1,0x00,0x00,0x3F,0xFF,0x9B,0x00,0x00,
0x01,0x83,0x80,0x1F,0xC7,0x80,0x00,0x21,0xE2,0x00,0x00,0x1F,0xFD,0xB6,0x00,0x00,
0x01,0xC3,0x00,0x0E,0xE6,0x80,0x00,0x19,0xEC,0x00,0x00,0x07,0xFE,0x20,0x00,0x00,
0x00,0xC3,0x00,0x07,0x67,0x40,0x00,0x07,0xF0,0x00,0x00,0x03,0x3E,0x00,0x00,0x00,
0x00,0x02,0x00,0x03,0xE7,0xA0,0x00,0x00,0x00,0x00,0x00,0x02,0x8E,0x00,0x00,0x00,
0x00,0x06,0x00,0x03,0x83,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x03,0x00,0x00,0x00,
0x00,0x06,0x00,0x07,0x03,0x00,0x77,0x46,0x74,0x24,0x80,0x06,0x04,0x00,0x00,0x00,
0x00,0x1C,0x00,0x06,0x00,0x00,0x55,0x45,0x54,0x57,0x80,0x00,0x00,0x00,0x00,0x00,
0x00,0x1C,0x00,0x0E,0x00,0x00,0x45,0x45,0x74,0x57,0x80,0x08,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x1C,0x00,0x00,0x55,0x45,0x44,0x74,0x80,0xF0,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x38,0x00,0x00,0x77,0x76,0x47,0x54,0x80,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x10,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
};

uchar code tab5[]={
/*-- 調入了一幅圖像：F:\梁\畫圖\COCK.bmp --*/
/*-- 寬度x高度=128x64 --*/
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x01,0x00,0x80,0x00,0x0F,0xFF,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x0C,0x43,0x01,0x80,0x00,0x7F,0xFF,0xF0,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x19,0xFF,0x07,0x00,0x07,0xFF,0xFF,0xFE,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x01,0x3F,0xFC,0x1E,0x00,0x1F,0xFF,0xFF,0xFF,0x80,0x00,0x00,0x00,
0x00,0x00,0x00,0x01,0xBF,0xFF,0xFC,0x00,0x7F,0xFC,0x00,0x7F,0xC0,0x00,0x00,0x00,
0x00,0x00,0x00,0x01,0xFF,0xFF,0xF0,0x00,0xFF,0xC0,0x00,0x0F,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x01,0xFF,0xFF,0xE0,0x03,0xFF,0xFF,0xFC,0x01,0xF0,0x00,0x00,0x00,
0x00,0x00,0x00,0x01,0xDF,0xFF,0xC0,0x07,0xFF,0xFF,0xFF,0x80,0xF0,0x00,0x00,0x00,
0x00,0x00,0x00,0x03,0xFF,0xFF,0x00,0x0F,0xFF,0xFF,0xFF,0xE0,0x38,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xF8,0x00,0x1F,0xFF,0xF0,0x03,0xF8,0x38,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xE0,0x00,0x3F,0xFF,0xFF,0xC0,0x7C,0x18,0x00,0x00,0x00,
0x00,0x00,0x00,0x04,0x7F,0xF0,0x00,0x3F,0xFF,0xFF,0xF8,0x1E,0x08,0x00,0x00,0x00,
0x00,0x00,0x00,0x01,0xFF,0xF8,0x00,0x7F,0xFF,0xFF,0xFE,0x0F,0x08,0x00,0x00,0x00,
0x00,0x00,0x00,0x0F,0xFF,0xFC,0x00,0xFF,0xFF,0xFF,0xFF,0x87,0x08,0x00,0x00,0x00,
0x00,0x00,0x00,0x1F,0xFF,0xFE,0x00,0xFF,0xFF,0xFF,0xFF,0x83,0x88,0x00,0x00,0x00,
0x00,0x00,0x00,0x3F,0xFF,0xFE,0x01,0xFF,0xFF,0xFF,0xFF,0xC3,0x88,0x00,0x00,0x00,
0x00,0x00,0x00,0x7F,0xFF,0xFE,0x01,0xFF,0xFF,0xFF,0xFF,0xE1,0x88,0x00,0x00,0x00,
0x00,0x00,0x00,0xFF,0xFF,0xFE,0x03,0xFF,0xFF,0xFF,0xFF,0xE1,0x88,0x00,0x00,0x00,
0x00,0x00,0x01,0xFF,0xFF,0xFE,0x03,0xFF,0xFF,0xFF,0xFF,0xF1,0x88,0x00,0x00,0x00,
0x00,0x00,0x01,0xFF,0xFF,0xFE,0x03,0xFF,0xFF,0xFF,0xFF,0xF3,0x08,0x00,0x00,0x00,
0x00,0x00,0x01,0xFF,0xFF,0xFF,0x07,0xFF,0xFF,0xFF,0xFF,0xF2,0x10,0x00,0x00,0x00,
0x00,0x00,0x01,0xFF,0xFF,0xFF,0x8F,0xFF,0xFF,0xFF,0xFF,0xF0,0x20,0x00,0x00,0x00,
0x00,0x00,0x01,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xF0,0x00,0x00,0x00,0x00,
0x00,0x00,0x01,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x70,0x00,0x00,0x00,0x00,
0x00,0x00,0x01,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFE,0xFF,0x70,0x00,0x00,0x00,0x00,
0x00,0x00,0x01,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFE,0xFF,0x70,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0xFF,0xFF,0xFF,0xFF,0xFF,0x7F,0xFF,0x7F,0x20,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0xFF,0xFF,0xFF,0xFF,0xFF,0xBF,0xFF,0x7F,0x20,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x7F,0xFF,0xFF,0xFF,0xFF,0xDF,0xFF,0x7E,0x20,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x3F,0xFF,0xFF,0xFF,0xFF,0xDF,0xFF,0x3E,0x40,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x1F,0xFF,0xFF,0xFF,0xFF,0xCF,0xFF,0x3C,0x40,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x0F,0xFF,0xFF,0xFF,0xFF,0xCF,0xFE,0x38,0x40,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xFF,0xFF,0xFF,0x8F,0xFE,0x38,0x40,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x01,0xFF,0xFF,0xFF,0xFF,0x8F,0xFE,0x30,0x40,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0xFF,0xFF,0xFF,0xFF,0x1F,0x7C,0x20,0x40,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x7F,0xFF,0xFF,0xFE,0x1E,0x78,0x00,0x40,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x3F,0xFF,0xFF,0xFE,0x1E,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x1F,0xFF,0xFF,0xDA,0x3C,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x07,0xFF,0xFF,0xF2,0x30,0x80,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x01,0xFF,0xFF,0xF1,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0xFE,0x7F,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x7C,0x3F,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x78,0x1F,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x72,0x07,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x70,0x00,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x60,0x00,0x78,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x60,0x00,0x60,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0xC0,0x03,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x01,0x40,0x04,0xD8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x01,0x00,0x01,0x08,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x02,0x0C,0x02,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x02,0x40,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x0C,0x48,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x38,0x41,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x0F,0xE2,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x40,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
};

/*------------------初始化-----------------*/
void init_lcd (void)
{
rst=1;
psb=0;
wr_lcd (comm,0x30); /*30---基本指令動作*/
wr_lcd (comm,0x01); /*清屏，地址指針指向00H*/
delay (100);
wr_lcd (comm,0x06); /*游標的移動方向*/
wr_lcd (comm,0x0c); /*開顯示，關游標*/
}
/*---------------顯示漢字或字元----------------*/
void chn_disp (uchar code *chn)
{
uchar i,j;
wr_lcd (comm,0x30);
wr_lcd (comm,0x80);
for (j=0;j<4;j++)
{
for (i=0;i<16;i++)
wr_lcd (dat,chn[j*16+i]);
}
}
/*-----------上半屏顯示漢字或字元------------*/
void chn_disp1 (uchar code *chn)
{
uchar i,j;
wr_lcd (comm,0x30);
wr_lcd (comm,0x80);
j=0;
for (i=0;i<16;i++)
wr_lcd (dat,chn[j*16+i]);
wr_lcd (comm,0x90);
j=1;
for (i=0;i<16;i++)
wr_lcd (dat,chn[j*16+i]);
}
/*----------------顯示圖形-----------------*/
void img_disp (uchar code *img)
{
uchar i,j;
for(j=0;j<32;j++)
{
for(i=0;i<8;i++)
{
wr_lcd (comm,0x34);
wr_lcd (comm,y+j);
wr_lcd (comm,x1+i);
wr_lcd (comm,0x30);
wr_lcd (dat,img[j*16+i*2]);
wr_lcd (dat,img[j*16+i*2+1]);
}
}
for(j=32;j<64;j++)
{
for(i=0;i<8;i++)
{
wr_lcd (comm,0x34);
wr_lcd (comm,y+j-32);
wr_lcd (comm,x2+i);
wr_lcd (comm,0x30);
wr_lcd (dat,img[j*16+i*2]);
wr_lcd (dat,img[j*16+i*2+1]);
}
}
wr_lcd (comm,0x36);
}
/*-------------下半屏顯示圖形--------------*/
void img_disp1 (uchar code *img)
{
uchar i,j;
for(j=0;j<32;j++)
{
for(i=0;i<8;i++)
{
wr_lcd (comm,0x34);
wr_lcd (comm,y+j);
wr_lcd (comm,x2+i);
wr_lcd (comm,0x30);
wr_lcd (dat,img[j*16+i*2]);
wr_lcd (dat,img[j*16+i*2+1]);
}
}
wr_lcd (comm,0x36);
}
/*--------------顯示點陣----------------*/
void lat_disp (uchar data1,uchar data2)
{
uchar i,j,k,x;
x=x1;
for(k=0;k<2;k++)
{
for(j=0;j<16;j++)
{
for(i=0;i<8;i++)
{
wr_lcd (comm,0x34);
wr_lcd (comm,y+j*2);
wr_lcd (comm,x+i);
wr_lcd (comm,0x30);
wr_lcd (dat,data1);
wr_lcd (dat,data1);
}
for(i=0;i<8;i++)
{
wr_lcd (comm,0x34);
wr_lcd (comm,y+j*2+1);
wr_lcd (comm,x+i);
wr_lcd (comm,0x30);
wr_lcd (dat,data2);
wr_lcd (dat,data2);
}
}
x=x2;
}
wr_lcd (comm,0x36);
}
/*-----------------------------------------------*/
//當data1=0xff,data2=0xff時,在x0,y0處反白顯示16xl*yl.
void con_disp (uchar data1,uchar data2,uchar x0,uchar y0,uchar xl,uchar yl)
{
uchar i,j;
for(j=0;j<yl;j++)
{
for(i=0;i<xl;i++)
{
wr_lcd (comm,0x34);
wr_lcd (comm,y0+j);
wr_lcd (comm,x0+i);
wr_lcd (comm,0x30);
wr_lcd (dat,data1);
wr_lcd (dat,data2);
}
}
wr_lcd (comm,0x36);
}
/*--------------清DDRAM------------------*/
void clrram (void)
{
wr_lcd (comm,0x30);
wr_lcd (comm,0x01);
delay (180);
}
/*---------------------------------------*/
void wr_lcd (uchar dat_comm,uchar content)
{
uchar a,i,j;
delay (50);
a=content;
cs=1;
sclk=0;
std=1;
for(i=0;i<5;i++)
{
sclk=1;
sclk=0;
}
std=0;
sclk=1;
sclk=0;
if(dat_comm)
std=1; //data
else
std=0; //command
sclk=1;
sclk=0;
std=0;
sclk=1;
sclk=0;
for(j=0;j<2;j++)
{
for(i=0;i<4;i++)
{
a=a<<1;
std=CY;
sclk=1;
sclk=0;
}
std=0;
for(i=0;i<4;i++)
{
sclk=1;
sclk=0;
}
}
}
/*-----------------------------------*/
void delay (uint us) //delay time
{
while(us--);
}
void delay1 (uint ms)
{
uint i,j;
for(i=0;i<ms;i++)
for(j=0;j<15;j++)
delay(1);
}
/*------------------主程序--------------------*/
void main ()
{
SP=0x5f;
init_lcd ();
while (1)
{
lat_disp (0x00,0x00);
chn_disp (tab1);
con_disp (0xff,0xff,0x8c,0x80,2,16);
delay1 (8000);
clrram();
lat_disp (0xcc,0xcc);
delay1 (8000);
lat_disp (0x00,0x00);
chn_disp1 (tab31);
img_disp1 (tab32);
delay1 (8000);
clrram();
lat_disp (0xff,0x00);
delay1 (8000);
img_disp (tab5);
delay1 (8000);
}
}

❸ 怎麼用單片機讓LCD顯示呢

用單片機讓LCD顯示，一要保證電路正確，二是程序必須與電路相符，程序中的LCD的控制腳必須與實物相符。否則，液晶屏只亮並不顯示字元。你主程序中的液晶屏初始化語句應放在第一行。你現在是放在最後了，假如前面語句顯示了，可初始化後就全沒了。

❹ 單片機LCD編程

/*************************************************
名 稱：LCD12864_ST7920並行測試程序
試驗功能：測試基於ST7920控制晶元的LCD12864的顯示
並行方式連接；晶振11.0592M
編 寫：JiangX.net
*************************************************/

#include <reg52.h>
#include <ziku.h>
#include <intrins.h>
#include <string.h>

#define uchar unsigned char
#define uint unsigned int //宏定義
#define ulong unsigned long

#define Channal_A 1 //通道A
#define Channal_B 2 //通道B
#define Channal_AB 3 //通道A&B
//**************************一下為函數聲明修**************************************
static void DA_conver(uint Dignum);
extern void Write_A_B(uint Data_A,uint Data_B,uchar Channal,bit Model);
//**************************修改硬體時要修改的部分********************************
sbit DIN = P0^0; //數據輸入端
sbit SCLK = P0^1; //時鍾信號
sbit CS = P0^2; //片選輸入端，低電平有效

/*MAX187介面定義*/
sbit MAX187_CS= P2^6;
sbit MAX187_DO= P2^5;
sbit MAX187_SK= P2^7;

/*****13864LCD介面定義*****/

sbit LCD_RS = P3^7; //1:輸入數據 ；0:輸入命令
sbit LCD_RW = P2^7; //1:讀數據 0:寫數據
sbit LCD_EN = P2^6; //LCM使能端
sbit LCD_PSB = P2^3; //串並口選擇 1:並口模式; 0:串口模式;
#define LCD_DATA P1 //LCD匯流排埠

/*****LCD功能初始化指令*****/
#define CLEAR_SCREEN 0x01 //清屏指令：清屏且AC值為00H
#define AC_INIT 0x02 //將AC設置為00H。且游標移到原點位置
#define CURSE_ADD 0x06 //設定游標移到方向及圖像整體移動方向（默認游標右移，圖像整體不動）
#define FUN_MODE 0x30 //工作模式：8位基本指令集
#define DISPLAY_ON 0x0c //顯示開,顯示游標，且游標位置反白
#define DISPLAY_OFF 0x08 //顯示關
#define CURSE_DIR 0x14 //游標向右移動:AC=AC+1
#define SET_CG_AC 0x40 //設置AC，范圍為：00H~3FH
#define SET_DD_AC 0x80

/*****漢字地址表*****/
uchar code addr_tab[]={ //便於根據漢字坐標求出地址
0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,//第一行漢字位置
0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,//第二行漢字位置
0x88,0x89,0x8a,0x8b,0x8c,0x8d,0x8e,0x8f,//第三行漢字位置
0x98,0x99,0x9a,0x9b,0x9c,0x9d,0x9e,0x9f,//第四行漢字位置
};

//------------全局變數定義-------------

uchar first[]="MAX187 ";
uchar show187[]="12345";
//uchar code shw187[]="123456";
uchar error[]="ERROR!";
ulong vv;

/*****n（ms）延時子程序*****/
void delayms(uint t) //約延時n（ms）
{
uint i;
while(t--)
{
for(i=0;i<125;i++);
}
}

/*****等待LCD忙*****/
void WaitBusy(void) //延時一小段時間，等待LCD空閑
{
uchar i=5;
while(i--);
}

/*****寫指令代碼*****/
void Lcd_WriteCmd(uchar cmdcode)
{
LCD_RS = 0;
LCD_RW = 0;
LCD_EN = 1;
WaitBusy();
LCD_DATA = cmdcode;
LCD_EN = 0;
}

/*****寫數據*****/
void Lcd_WriteData(uchar dispdata)
{
LCD_RS = 1;
LCD_RW = 0;
LCD_EN = 1;
WaitBusy();
LCD_DATA = dispdata;
LCD_EN = 0;
}

/*****初始化LCD*****/
void Lcd_Init()
{
LCD_PSB = 1;
delayms(50);
Lcd_WriteCmd(0x30); //選擇基本指令集
delayms(1);
Lcd_WriteCmd(0x30); //選擇8bit數據流
delayms(1);
Lcd_WriteCmd(0x0c); //開顯示(無游標、不反白)
delayms(1);
Lcd_WriteCmd(0x01); //清除顯示，並且設定地址指針為00H
delayms(20);
}

/*****顯示漢字*****/
void hanzi_Disp(uchar x,uchar y,uchar *s)
{ //x、y為漢字坐標
Lcd_WriteCmd(addr_tab[8*x+y]); //寫地址
while(*s>0)
{
Lcd_WriteData(*s); //寫數據
s++;
}
}

/*****顯示圖片（顯示Gdram內容）*****/

/*繪圖顯示的步驟
1 關閉繪圖顯示功能
2 先將垂直的坐標(Y)寫入繪圖RAM地址
3 再將水平的位元組坐標(X)寫入繪圖RAM地址
4 將D15－D8寫入RAM中
5 將D7－D0寫入到RAM中
6 打開繪圖顯示功能*/

//圖片取模方式：橫向取模，位元組正序
void pic_Disp(uchar *pic) //顯示Gdram內容（顯示圖片）
{
uchar x,y,i;
for(i=0;i<9;i=i+8)
for(y=0;y<32;y++)
{
for(x=0;x<8;x++)
{
Lcd_WriteCmd(0x36); //擴充指令，開繪圖顯示
Lcd_WriteCmd(0x80+y); //行地址
Lcd_WriteCmd(0x80+x+i); //列地址
Lcd_WriteData(*pic++); //寫數據 D15－D8
Lcd_WriteData(*pic++); //寫數據 D7－D0
Lcd_WriteCmd(0x30);
}
}
}

/*max187延時程序*/
void delay_MS(uint ms)//普通延時MS級
{ uint i,j;
for(i=0;i<ms;i++)
{for(j=0;j<1141;j++); }
}
void delay_uS(uint us)//普通延時US級
{ uint i,j;
for(i=0;i<us;i++)
{ for(j=0;j<10;j++); }
}
//MAX187讀程序;
unsigned int MAX187read(void)
{
uchar H,L,i;
uint count; //16位變數

MAX187_CS=0; //低電平有效,開始轉換
delay_uS(2); //延時8.5μ等待轉換結束
MAX187_SK=1;
MAX187_SK=0;
H=0; //高位變數清零
for(i=0;i<4;i++) //高4位
{
MAX187_SK=1;
if(MAX187_DO) H++; //位標量,如為1則H加1,如為0則跳過
MAX187_SK=0;
if(i!=3)
H<<=1;
}
L=0;
for(i=0;i<8;i++) //低8位
{
MAX187_SK=1;
if(MAX187_DO) L++; //位標量,如為1則L加1,如為0則跳過
MAX187_SK=0;
if(i!=7)
L<<=1;
}
delay_uS(1);
MAX187_CS=1;
count=0;
count=L;
return count;
}

void MAX187_data()
{
vv=MAX187read();
vv=vv*2*4096/4093;
show187[0]=vv/1000+'0';
show187[1]='.';
show187[2]=vv/100%10+'0';
show187[3]=vv/10%10+'0';
show187[4]=vv%10+'0';
show187[5]='\0';

}
/*****主函數*****/
void main(void)
{
uchar volt,number;
number=2;
volt=0x30+number;
Lcd_Init();
while(1)
{
Lcd_Init();

hanzi_Disp(0,1,"山東天工機電");
hanzi_Disp(1,2,"智能充電機");
hanzi_Disp(2,0,"www.sdtgjd.com");
hanzi_Disp(3,3,"");
delayms(1000);

Lcd_Init();
hanzi_Disp(1,2,"充電電流：");
//delayms(500);

//Lcd_Init();
MAX187_data();
hanzi_Disp(2,3,show187);
delayms(1500);
Write_A_B(0x0fff,0x0000,Channal_A,0); //測量A通道
//Write_A_B(0x0000,0x0600,Channal_B,1); //測量B通道
// Write_A_B(0x0504,0x0a47,Channal_AB,1); //測量AB通道，測量時需屏蔽上面兩句
//while(1);
}
}
//=================================================================
// 函數名稱 ：void DA_conver(uint Dignum)
// 函數功能 ：進行DA轉換
// 入口參數 ：Dignum:根據說明設置轉化數據.頭四位為特殊位用於選擇轉化方式,
// 以及用於通道選擇.請自行設置.後12位為需要轉換的值
// 出口參數 ：無
//=================================================================
void DA_conver(uint Dignum)
{
uint Dig=0;
uchar i=0;
SCLK=1;
CS=0; //片選有效
for(i=0;i<16;i++) //寫入16為Bit的控制位和數據
{
Dig=Dignum&0x8000;
if(Dig)
{
DIN=1;
}
else
{
DIN=0;
}
SCLK=0;
_nop_();
Dignum<<=1;
SCLK=1;
_nop_();
}
SCLK=1;
CS=1; //片選無效
}
//=================================================================
// 函數名稱 ：void Write_A_B(uint Data_A,uint Data_B,uchar Channal,bit Model)
// 函數功能 ：模式、通道選擇並進行DA轉換
// 入口參數 ：Data_A：A通道轉換的電壓值
// Data_B：B通道轉換的電壓值
// Channal：通道選擇，其值為Channal_A，Channal_B,或Channal_AB
// Model：速度控制位 0：slow mode 1：fast mode
// 出口參數 ：無
// 說明： Data_A，Data_B的范圍為：0-0x0fff
// 本程序如果只需要一個通道時，另外一個通道的值可任意，但是不能預設
//=================================================================
void Write_A_B(uint Data_A,uint Data_B,uchar Channal,bit Model)
{
uint Temp;
if(Model)
{
Temp=0x4000;
}
else
{
Temp=0x0000;
}
switch(Channal)
{
case Channal_A: //A通道
DA_conver(Temp|0x8000|(0x0fff&Data_A));
break;
case Channal_B: //B通道
DA_conver(Temp|0x0000|(0x0fff&Data_B));
break;
case Channal_AB:
DA_conver(Temp|0x1000|(0x0fff&Data_B)); //A&B通道
DA_conver(Temp|0x8000|(0x0fff&Data_A));
break;
default:
break;
}
}

❺ 請教單片機驅動的液晶12864LCD畫圓程序

只不過是實現畫園而已，你可以自己嘗試寫一個嘛。
如果還要填充的話會比較麻煩，但是也不是很難。
建議自己試著寫吧，

❻ 單片機LCD顯示問題

什麼樣的LCD ？ 1602？12864？如果12864又是哪個晶元的

❼ LCD的畫圖功能程序

LCD觸摸一體機畫圖軟體很多，可以推薦一款WIN7自帶的給你。
開始——所有程序——附件——畫圖。

❽ PIC32位單片機在LCD上畫點畫線問題（C語言）

//---------------------------------------------------
用C語言，也是把一個變數，分解成個十百千萬位數，一位一位的顯示。
在：

中，有一段即是：
void W_LCD_X1_Dat(uchar sec)
{
W_LCD_Com(0xc0 + 7);
W_LCD_Dat(0x30 + sec / 10000);
W_LCD_Dat(0x30 + (sec % 10000) / 1000);
W_LCD_Dat(0x30 + (sec % 1000) / 100);
W_LCD_Dat(0x30 + (sec % 100) / 10);
W_LCD_Dat(0x30 + sec % 10);
}
//---------------------------------------------------
這裡面的加上0x30，是變換成ASCII碼。
另外,團IDC網上有許多產品團購,便宜有口碑

❾ 單片機 中的LCD

write_date(0x30+shi);
shi是代表日期十位的數字，0x30就是ASCII碼的'0'字元，二者相加就是該數字的ASCII碼。下面的ge（日期個位）也是如此。

add是address（地址）的一種縮寫。一般習慣上寫為addr為好。