请教TFT屏，ILI9325驱动的问题

晓毕8

这个是STC12c5a60S2单片机驱动的，picture.h、chinese.h、char.h里都是要显示的字符，问题出现在屏幕显示的都是花点，不然就是全白，是什么问题？

1. #include <reg52.h>
   
2. #include"LCD_driver.h"
   
3. #include"picture.h"
   
4. #include"chinese.h"
   
5. #include"char.h"
   
6. 
   
7. uint colors[]=
   
8. {
   
9.   0xf800,0x07e0,0x001f,0xffe0,0x0000,0x07ff,0xf81f,0xffff  //颜色数据
   
10. };
    
11. 
    
12. 
    
13. void LCD_Init(void)
    
14. {
    
15. 
    
16.     LCD_REST=1;
    
17.     delayms(5);       
    
18.         LCD_REST=0;
    
19.         delayms(5);
    
20.         LCD_REST=1;
    
21.         delayms(5);
    
22. 
    
23.         LCD_CS =0;  //打开片选使能
    
24.         //************* Start Initial Sequence **********//
    
25.         LCD_Write_COM(0x00,0xE5); LCD_Write_DATA(0x78,0xF0); // set SRAM internal timing   设置静态存储器内部定时
    
26.         LCD_Write_COM(0x00,0x01); LCD_Write_DATA(0x01,0x00); // set SS and SM bit
    
27.         LCD_Write_COM(0x00,0x02); LCD_Write_DATA(0x07,0x00); // set 1 line inversion 倒转
    
28.         LCD_Write_COM(0x00,0x03); LCD_Write_DATA(0x10,0x30); // set GRAM write direction and BGR=1.
    
29.         LCD_Write_COM(0x00,0x04); LCD_Write_DATA(0x00,0x00); // Resize register
    
30.         LCD_Write_COM(0x00,0x08); LCD_Write_DATA(0x02,0x07); // set the back porch and front porch
    
31.         LCD_Write_COM(0x00,0x09); LCD_Write_DATA(0x00,0x00); // set non-display area refresh cycle ISC[3:0]
    
32.         LCD_Write_COM(0x00,0x0A); LCD_Write_DATA(0x00,0x00); // FMARK function
    
33.         LCD_Write_COM(0x00,0x0C); LCD_Write_DATA(0x00,0x00); // RGB interface setting
    
34.         LCD_Write_COM(0x00,0x0D); LCD_Write_DATA(0x00,0x00); // Frame marker Position
    
35.         LCD_Write_COM(0x00,0x0F); LCD_Write_DATA(0x00,0x00); // RGB interface polarity
    
36.         //*************Power On sequence ****************//
    
37.         LCD_Write_COM(0x00,0x10); LCD_Write_DATA(0x00,0x00); // SAP, BT[3:0], AP, DSTB, SLP, STB
    
38.         LCD_Write_COM(0x00,0x11); LCD_Write_DATA(0x00,0x07); // DC1[2:0], DC0[2:0], VC[2:0]
    
39.         LCD_Write_COM(0x00,0x12); LCD_Write_DATA(0x00,0x00); // VREG1OUT voltage
    
40.         LCD_Write_COM(0x00,0x13); LCD_Write_DATA(0x00,0x00); // VDV[4:0] for VCOM amplitude
    
41.         LCD_Write_COM(0x00,0x07); LCD_Write_DATA(0x00,0x01);
    
42.         delayms(50); // Dis-charge capacitor power voltage
    
43.         LCD_Write_COM(0x00,0x10); LCD_Write_DATA(0x10,0x90); // 1490//SAP, BT[3:0], AP, DSTB, SLP, STB
    
44.         LCD_Write_COM(0x00,0x11); LCD_Write_DATA(0x02,0x27); // DC1[2:0], DC0[2:0], VC[2:0]
    
45.         delayms(50); // Delay 50ms
    
46.         LCD_Write_COM(0x00,0x12); LCD_Write_DATA(0x00,0x1F); //001C// Internal reference voltage= Vci;
    
47.         delayms(50); // Delay 50ms
    
48.         LCD_Write_COM(0x00,0x13); LCD_Write_DATA(0x15,0x00); //0x1000//1400   Set VDV[4:0] for VCOM amplitude  1A00
    
49.         LCD_Write_COM(0x00,0x29); LCD_Write_DATA(0x00,0x27); //0x0012 //001a  Set VCM[5:0] for VCOMH  //0x0025  0034
    
50.         LCD_Write_COM(0x00,0x2B); LCD_Write_DATA(0x00,0x0D); // Set Frame Rate   000C
    
51.         delayms(50); // Delay 50ms
    
52.         LCD_Write_COM(0x00,0x20); LCD_Write_DATA(0x00,0x00); // GRAM horizontal Address
    
53.         LCD_Write_COM(0x00,0x21); LCD_Write_DATA(0x00,0x00); // GRAM Vertical Address
    
54.         // ----------- Adjust the Gamma Curve ----------//
    
55.         LCD_Write_COM(0x00,0x30); LCD_Write_DATA(0x00,0x00);
    
56.         LCD_Write_COM(0x00,0x31); LCD_Write_DATA(0x07,0x07);
    
57.         LCD_Write_COM(0x00,0x32); LCD_Write_DATA(0x03,0x07);
    
58.         LCD_Write_COM(0x00,0x35); LCD_Write_DATA(0x02,0x00);
    
59.         LCD_Write_COM(0x00,0x36); LCD_Write_DATA(0x00,0x08);//0207
    
60.         LCD_Write_COM(0x00,0x37); LCD_Write_DATA(0x00,0x04);//0306
    
61.         LCD_Write_COM(0x00,0x38); LCD_Write_DATA(0x00,0x00);//0102
    
62.         LCD_Write_COM(0x00,0x39); LCD_Write_DATA(0x07,0x07);//0707
    
63.         LCD_Write_COM(0x00,0x3C); LCD_Write_DATA(0x00,0x02);//0702
    
64.         LCD_Write_COM(0x00,0x3D); LCD_Write_DATA(0x1D,0x04);//1604
    
65.        
    
66.         //------------------ Set GRAM area ---------------//
    
67.         LCD_Write_COM(0x00,0x50); LCD_Write_DATA(0x00,0x00); // Horizontal GRAM Start Address
    
68.         LCD_Write_COM(0x00,0x51); LCD_Write_DATA(0x00,0xEF); // Horizontal GRAM End Address
    
69.         LCD_Write_COM(0x00,0x52); LCD_Write_DATA(0x00,0x00); // Vertical GRAM Start Address
    
70.         LCD_Write_COM(0x00,0x53); LCD_Write_DATA(0x01,0x3F); // Vertical GRAM Start Address
    
71.         LCD_Write_COM(0x00,0x60); LCD_Write_DATA(0xA7,0x00); // Gate Scan Line
    
72.         LCD_Write_COM(0x00,0x61); LCD_Write_DATA(0x00,0x01); // NDL,VLE, REV
    
73.         LCD_Write_COM(0x00,0x6A); LCD_Write_DATA(0x00,0x00); // set scrolling line
    
74.         //-------------- Partial Display Control ---------//
    
75.         LCD_Write_COM(0x00,0x80); LCD_Write_DATA(0x00,0x00);
    
76.         LCD_Write_COM(0x00,0x81); LCD_Write_DATA(0x00,0x00);
    
77.         LCD_Write_COM(0x00,0x82); LCD_Write_DATA(0x00,0x00);
    
78.         LCD_Write_COM(0x00,0x83); LCD_Write_DATA(0x00,0x00);
    
79.         LCD_Write_COM(0x00,0x84); LCD_Write_DATA(0x00,0x00);
    
80.         LCD_Write_COM(0x00,0x85); LCD_Write_DATA(0x00,0x00);
    
81.         //-------------- Panel Control -------------------//
    
82.         LCD_Write_COM(0x00,0x90); LCD_Write_DATA(0x00,0x10);
    
83.         LCD_Write_COM(0x00,0x92); LCD_Write_DATA(0x06,0x00);
    
84.         LCD_Write_COM(0x00,0x07); LCD_Write_DATA(0x01,0x33); // 262K color and display ON
    
85.         LCD_CS =1;  //关闭片选使能
    
86. 
    
87. }  
    
88. 
    
89. 
    
90. 
    
91. 
    
92. void delayms(int count)  // /* X1ms */
    
93. {
    
94.         int i,j;
    
95.         for(i=0;i<count;i++)
    
96.                 for(j=0;j<100;j++);
    
97. }
    
98. 
    
99. #ifdef  Bus_16    //条件编译-16位数据模式   
    
100. void LCD_Writ_Bus(char VH,char VL)   //并行数据写入函数
     
101. {
     
102.     LCD_DataPortH=VH;          //高位P1口
     
103.         LCD_DataPortL=VL;          //低位P0口       
     
104.         LCD_WR=0;
     
105.         LCD_WR=1;
     
106. }
     
107. #else                        //条件编译-8位数据模式
     
108. void LCD_Writ_Bus(char VH,char VL)   //并行数据写入函数
     
109. {       
     
110.     LCD_DataPortH=VH;  //八位模式都用P0口送数据       
     
111.            LCD_WR=0;
     
112.         LCD_WR=1;
     
113.         LCD_DataPortH=VL; //八位模式都用P0口送数据                       
     
114.         LCD_WR=0;
     
115.         LCD_WR=1;
     
116. }
     
117. #endif
     
118. 
     
119. 
     
120. void LCD_Write_COM(char VH,char VL)         //发送命令
     
121. {       
     
122.     LCD_RS=0;
     
123.         LCD_Writ_Bus(VH,VL);
     
124. }
     
125. 
     
126. 
     
127. void LCD_Write_DATA(char VH,char VL)        //发送数据
     
128. {
     
129.     LCD_RS=1;
     
130.         LCD_Writ_Bus(VH,VL);
     
131. }
     
132. 
     
133. 
     
134. 
     
135. 
     
136. void Pant(char VH,char VL)
     
137. {
     
138.         int i,j;
     
139.         LCD_CS =0;  //打开片选使能
     
140.         Address_set(0,0,239,319);
     
141.     for(i=0;i<320;i++)
     
142.          {
     
143.           for (j=0;j<240;j++)
     
144.                    {
     
145.                  LCD_Write_DATA(VH,VL);
     
146.             }
     
147. 
     
148.           }
     
149.      LCD_CS =1;  //关闭片选使能
     
150. }
     
151. 
     
152. 
     
153. void Address_set(unsigned int x1,unsigned int y1,unsigned int x2,unsigned int y2)
     
154. {
     
155.         LCD_Write_COM(0x00,0x20);LCD_Write_DATA(x1>>8,x1);          //设置X坐标位置
     
156.     LCD_Write_COM(0x00,0x21);LCD_Write_DATA(y1>>8,y1);   //设置Y坐标位置
     
157.     LCD_Write_COM(0x00,0x50);LCD_Write_DATA(x1>>8,x1);   //开始X
     
158.         LCD_Write_COM(0x00,0x52);LCD_Write_DATA(y1>>8,y1);          //开始Y
     
159.     LCD_Write_COM(0x00,0x51);LCD_Write_DATA(x2>>8,x2);   //结束X
     
160.         LCD_Write_COM(0x00,0x53);LCD_Write_DATA(y2>>8,y2);   //结束Y
     
161.     LCD_Write_COM(0x00,0x22);                                                         
     
162. }
     
163. 
     
164. 
     
165. /**********************************************************
     
166. 
     
167.   写汉字子函数
     
168. 
     
169. **********************************************************/
     
170. void ChineseChar(uint x,uint y,int size,uint For_color,uint Bk_color ,char c)
     
171. {
     
172.    int e=0,i,j;
     
173.    int  ed;
     
174.    
     
175.    uint  ncols;
     
176.    uint  nrows;
     
177.    uint  nbytes;
     
178. 
     
179.    uchar *pfont;
     
180.    uchar *pchar;
     
181.    uchar *fonttable[]={(uchar *)hz16,(uchar *)hz24 , (uchar *)hz32};
     
182.    
     
183.    pfont=(uchar *)fonttable;
     
184. 
     
185.    if(size==0)
     
186.    {
     
187.      ncols =16-1;
     
188.      nrows =16-1;
     
189.      nbytes =32;         //(16*16)/8
     
190.    }
     
191.    else
     
192.    if(size==1)
     
193.    {
     
194.      ncols =24-1;
     
195.      nrows =24-1;
     
196.      nbytes =72;  //(24*24)/8
     
197.    }
     
198.    else
     
199.    if(size==2)
     
200.    {
     
201.      ncols =32-1;
     
202.      nrows =32-1;
     
203.      nbytes =132;   //(32*32)/8
     
204.    }
     
205.    
     
206.    pchar=pfont + (nbytes*(c-1));
     
207. 
     
208.    Address_set(x,  y, x+nrows,y+ncols);
     
209.    
     
210.    for(i=0;i<nbytes;i++)
     
211.    {
     
212.      ed=*pchar++;
     
213.          if(size==0)
     
214.          {
     
215.        if(i%2==0)
     
216.        e=8;
     
217.        else
     
218.        e=4;
     
219.          }
     
220.          else
     
221.          e=8;
     
222.      
     
223.      for(j=0;j<e;j++)
     
224.      {// unsigned char temp;
     
225.           if((ed>>j)&0x01)
     
226.       {
     
227.                //temp =         For_color&0x00ff
     
228.            LCD_Write_DATA(For_color>>8 , For_color  );  //textcolor
     
229.           }
     
230.      else
     
231.      {
     
232.        LCD_Write_DATA( Bk_color>>8 ,  Bk_color);  //backcolor
     
233.          }
     
234.         }
     
235.   }
     
236. }
     
237. 
     
238. /*********************************************************/
     
239. 
     
240. /**********************************************************
     
241. 
     
242.   字符显示子函数
     
243. 
     
244. **********************************************************/
     
245. void LCD_ShowChar(uint x,uint y,uint For_color,uint Bk_color, char ch)
     
246. {      
     
247.    uchar temp , Bytes;
     
248.    uchar pos,t;
     
249.    uint  CHAR_W,CHAR_H;
     
250. 
     
251.    
     
252.    //CHAR_W = 8;         //8*16
     
253.    //CHAR_H = 16;
     
254. 
     
255.      CHAR_W = 16;         //16*24
     
256.      CHAR_H = 24;
     
257. 
     
258.    if(x>(LCD_SIZE_X-CHAR_W)||y>(LCD_SIZE_Y-CHAR_H))
     
259.    return;
     
260.    
     
261.    Address_set(x, y, x+CHAR_W-1, y+CHAR_H-1);
     
262.    ch = ch-32;                       //按照ASCII编码顺序的到相应字母的编码
     
263.    Bytes = (CHAR_W*CHAR_H)/8;
     
264.    for(pos=0;pos<Bytes;pos++)  //CHAR_H         (CHAR_W*CHAR_H)/8
     
265.    {
     
266.      // temp= Font8x16[ch][pos];
     
267. 
     
268.           //temp= Font16x24[ch][pos];
     
269.           temp= Font16x24[ch][pos];
     
270.       
     
271.       for(t=0;t<8;t++) //CHAR_W
     
272.       {                 
     
273.             if(temp&0x80)
     
274.             LCD_Write_DATA(For_color>>8 , For_color  );  //textcolor
     
275.             else
     
276.             LCD_Write_DATA(Bk_color>>8 , Bk_color );  //backcolor
     
277.         temp<<=1;
     
278.       }
     
279.           
     
280.    }
     
281. }  
     
282. 
     
283. /**********************************************************
     
284. 显示字符串子函数
     
285. 
     
286. x,y:起点坐标  
     
287. *p:字符串起始地址
     
288. 
     
289. **********************************************************/
     
290. void LCD_ShowString(uint x,uint y,uint For_color,uint Bk_color,char *p)
     
291. {         
     
292.    while(*p!='\0')
     
293.    {      
     
294.      LCD_ShowChar(x,y,For_color,Bk_color,*p);
     
295.     // x+=8;
     
296.          x+=16;
     
297.      p++;
     
298.    }
     
299. }

复制代码

1. main()
   
2. {
   
3.         //int i,j,k;
   
4.         LCD_Init();          //TFT初始化
   
5. //        Pant(0xff,0xff);         //TFT清屏
   
6.        
   
7. 
   
8.           
   
9.    //Pant(0xf8,0x00); //红色
   
10.    //Pant(0X07,0xE0); //绿色
    
11.    Pant(0x00,0x1f); //蓝色
    
12.                        
    
13.    LCD_CS =0;  //打开片选使能
    
14.    ChineseChar(14+46,10,2,colors[2],colors[7],1);       
    
15.    ChineseChar(46+46,10,2,colors[2],colors[7],2);       
    
16.    ChineseChar(78+46,10,2,colors[2],colors[7],3);       
    
17.    ChineseChar(110+46,10,2,colors[2],colors[7],4);       
    
18. 
    
19.    LCD_ShowString(12,60,colors[0],colors[7],"-");
    
20.    ChineseChar(20,60,1,colors[0],colors[7],1);        //带
    
21.    ChineseChar(44,60,1,colors[0],colors[7],2);        //您
    
22.    ChineseChar(68,60,1,colors[0],colors[7],3);        //进
    
23.    ChineseChar(92,60,1,colors[0],colors[7],4);        //入
    
24.    ChineseChar(116,60,1,colors[0],colors[7],5);        //单
    
25.    ChineseChar(140,60,1,colors[0],colors[7],6);        //片
    
26.    ChineseChar(164,60,1,colors[0],colors[7],7);        //机
    
27.    ChineseChar(188,60,1,colors[0],colors[7],8);        //世
    
28.    ChineseChar(212,60,1,colors[0],colors[7],9);        //界
    
29. 
    
30.    LCD_ShowString(0,90,colors[0],colors[5],"WWW.PRECHIN.com");
    
31. 
    
32. 
    
33.     ChineseChar(0,120,1,colors[4],colors[7],10);       
    
34.         ChineseChar(24,120,1,colors[4],colors[7],11);       
    
35.         ChineseChar(48,120,1,colors[6],colors[7],12);       
    
36.         ChineseChar(72,120,1,colors[6],colors[7],13);       
    
37.         ChineseChar(96,120,1,colors[2],colors[7],14);       
    
38.         ChineseChar(120,120,1,colors[2],colors[7],15);       
    
39. 
    
40.         LCD_ShowString(0,150,colors[7],colors[2],"www.PRECHIN.net");
    
41.                      
    
42.     LCD_ShowString(12,180,colors[0],colors[7],"TELL:");
    
43.     LCD_ShowString(12,210,colors[2],colors[7],"0755-61190227");       
    
44.     LCD_ShowString(0,240,colors[2],colors[7],"abcdefJhiJKLMNOP");
    
45.     LCD_ShowString(0,265,colors[2],colors[7],"pqrstuvwxyz!@#$");
    
46.     LCD_ShowString(0,290,colors[2],colors[7],"<>CDEF^&*()/,[]");
    
47.        
    
48.         LCD_CS =1;  //关闭片选使能
    
49.                 while(1){}
    
50. 
    
51. 
    
52. 
    
53. }
    

复制代码