請大神幫個忙，看看是什么問題，為什么在TFT彩屏上顯示的是線條

ID:85337 · 發(fā)表于 2015-7-20 22:23

#include <reg51.h>

#define TFT_DATAPORTH P1
#define TFT_DATAPORTL P0

typedef unsigned char uchar;
typedef unsigned int uint;

sbit TFT_RW=P2^5;
sbit TFT_RS=P2^6;
sbit TFT_CS=P2^7;       //片選（低電平有效）
sbit TFT_RST=P3^3;       //低電平復(fù)位
sbit TFT_RD=P3^0;          //RD=0:讀信號；RD=1:寫數(shù)據(jù)

void TFT_init(void);
void delay(int x);
void TFT_writecmd(uint cmd);       //該函數(shù)把命令字寫入到TFT控制器
void TFT_writedata(uint dat);                         //該函數(shù)把數(shù)據(jù)字寫入到TFT控制器
void TFT_write_cmd_data(uint cmd,uint dat);    //該函數(shù)把命令字和數(shù)據(jù)字都寫入到TFT控制器
void TFT_clearscreen(uint color);    //清屏函數(shù)
void TFT_setwindow(uchar xStart,uchar yStart,uchar xEnd,uchar yEnd);  //設(shè)置顯示窗口
void GUI_Write32CnChar(uint x, uint y, uchar *cn, uint wordColor, uint backColor);//顯示漢字

typedef struct _Cn32Char                // 漢字字模數(shù)據(jù)結(jié)構(gòu)
{
uchar GBK[2];          // 漢字內(nèi)碼索引,一個漢字占兩個字節(jié)
uchar hanzi[116];          // 點陣碼數(shù)據(jù)(32*29/8)
}Cn32Char;

Cn32Char code CnChar32x29[]={

/*--  文字:  普  --*/
/*--  宋體22;  此字體下對應(yīng)的點陣為：寬x高=29x29 --*/
/*--  寬度不是8的倍數(shù)，現(xiàn)調(diào)整為：寬度x高度=32x29  --*/
"普",0x00,0x00,0x00,0x00,0x00,0x07,0x0C,0x00,0x00,0x1E,0x3E,0x00,0x00,0x3C,0x0E,0x00,
0x00,0x3C,0x87,0x03,0xF8,0xFF,0xFF,0x07,0x00,0x1C,0x07,0x00,0x60,0x1C,0xE7,0x00,
0xE0,0x1C,0xE7,0x01,0xC0,0x1D,0x77,0x00,0xC0,0x1F,0x77,0x00,0x80,0x1F,0x3F,0x00,
0x80,0x1D,0x1F,0x07,0xFF,0xFF,0xFF,0x0F,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x80,0x00,0x30,0x00,0x80,0xFF,0x7F,0x00,0x80,0x03,0x38,0x00,0x80,0x03,0x38,0x00,
0x80,0x03,0x38,0x00,0x80,0xFF,0x3F,0x00,0x80,0x03,0x38,0x00,0x80,0x03,0x38,0x00,
0x80,0x03,0x38,0x00,0x80,0xFF,0x3F,0x00,0x80,0x03,0x38,0x00,0x80,0x01,0x18,0x00,
0x00,0x00,0x00,0x00
};

void main(void)
{
int i=0;
TFT_init();
TFT_clearscreen(0xf800);

GUI_Write32CnChar(24,25,"普",0x0000,0x0f800);

while(1);

}

void delay(int x)
{
int a;
while(x--)
{
     for(a=0;a<200;a++);
}
}

void TFT_init(void)
{
TFT_RST=1;
delay(1);
TFT_RST=0;
delay(1);
TFT_RST=1;
delay(1);

TFT_CS=0;

TFT_write_cmd_data(0x0014,0x0030);
TFT_write_cmd_data(0x000f,0x0008);
TFT_write_cmd_data(0x0011,0x0231);
TFT_write_cmd_data(0x0012,0x000a);
TFT_write_cmd_data(0x0013,0x145d);
TFT_write_cmd_data(0x0010,0x5268);
delay(10);

TFT_write_cmd_data(0x0012,0x001a);
delay(10);

    TFT_write_cmd_data(0x0010,0x5260);
   TFT_write_cmd_data(0x0013,0x345d);
delay(10);

TFT_write_cmd_data(0x0030,0x0000);
TFT_write_cmd_data(0x0031,0x0705);
TFT_write_cmd_data(0x0032,0x0706);
TFT_write_cmd_data(0x0033,0x0102);
TFT_write_cmd_data(0x0034,0x0204);
TFT_write_cmd_data(0x0035,0x0000);
TFT_write_cmd_data(0x0036,0x0104);
TFT_write_cmd_data(0x0037,0x0007);
TFT_write_cmd_data(0x0038,0x0000);
TFT_write_cmd_data(0x0039,0x0000);
TFT_write_cmd_data(0x0001,0x011b);
TFT_write_cmd_data(0x0002,0x0700);
TFT_write_cmd_data(0x0003,0x1030);
TFT_write_cmd_data(0x000b,0x1010);
TFT_write_cmd_data(0x000a,0x4420);
TFT_write_cmd_data(0x000b,0x5030);
TFT_write_cmd_data(0x0007,0x0005);
TFT_write_cmd_data(0x0007,0x0025);
TFT_write_cmd_data(0x0007,0x0027);
TFT_write_cmd_data(0x0007,0x0037);

}

void TFT_writecmd(uint cmd)
{
TFT_RW=1;
TFT_CS=0;

TFT_RD=1;
TFT_RS=0;

TFT_DATAPORTH=cmd>>8;

TFT_RW=0;
TFT_RW=1;

TFT_DATAPORTL=cmd&0x00ff;

TFT_RW=0;
TFT_RW=1;

TFT_CS=1;

}

void TFT_writedata(uint dat)
{

TFT_RW=1;
TFT_CS=0;

TFT_RD=1;
TFT_RS=1;

TFT_DATAPORTH=dat>>8;

TFT_RW=0;
TFT_RW=1;

TFT_DATAPORTL=dat&0x00ff;

TFT_RW=0;
TFT_RW=1;

TFT_CS=1;

}

void TFT_write_cmd_data(uint cmd,uint dat)
{
TFT_writecmd(cmd);
TFT_writedata(dat);
}

void TFT_clearscreen(uint color)
{
int i,j;

TFT_setwindow(0,0,175,219);

for(i=0;i<=175;i++)
{
for(j=0;j<=219;j++)
{
TFT_writedata(color);
}
}
}

void TFT_setwindow(uchar xStart,uchar yStart,uchar xEnd,uchar yEnd)
{
uint x,y,z;

x=(xEnd<<8)|xStart;
y=(yEnd<<8)|yStart;
z=(yStart<<8)|xStart;

TFT_write_cmd_data(0x44,x);

TFT_write_cmd_data(0x45,y);

TFT_write_cmd_data(0x21,z);

TFT_write_cmd_data(0x22,0x0000);
}

void GUI_Write32CnChar(uint x, uint y, uchar *cn, uint wordColor, uint backColor)
{
uchar i,j,wordNum;
uint color;
while(*cn!='\0')
{
TFT_setwindow(x,y,x+31,y+28);
      for(wordNum=0;wordNum<20;wordNum++)
      {       //wordNum掃描字庫的字
if((CnChar32x29[wordNum].GBK[0]==*cn)&&(CnChar32x29[wordNum].GBK[1]==*(cn+1)))
         {
            for(i=0; i<116; i++)
            {       //MSK的位數(shù)
            color=CnChar32x29[wordNum].hanzi[i];
                  for(j=0;j<8;j++)
                  {
                    if((color&0x80)==0x80)
                     {
                        TFT_writedata(wordColor);
                     }
                     else
                     {
                        TFT_writedata(backColor);
                     }
                     color<<=1;
                  }//for(j=0;j<8;j++)結(jié)束
            }
         }
   } //for (wordNum=0; wordNum<20; wordNum++)結(jié)束
   cn+=2;
   x+=32;
}
}

ID:85337 · 發(fā)表于 2015-7-20 22:24

請大神看看，為什么在TFT彩屏上顯示的是線條

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