lcd_driver.cpp

00001 #include "lcd_driver.h"
00002 
00003 
00004 #define LCD_DRIVER_C
00005 
00006 #include "mbed.h"
00007 
00008 //lsb .. msb
00009 BusOut LCD_DataBus(p13,p14,p15,p16,p17,p18,p19,p20);
00010 
00011 
00012 DigitalOut RS(p21);
00013 DigitalOut WR(p22);
00014 DigitalOut RD(p23);
00015 DigitalOut CS(p24);
00016 DigitalOut RST(p25);
00017 
00018 
00019 void Write_Command(unsigned int c)
00020 {
00021   RS = 0;
00022   Write(c);
00023 }
00024 
00025 void Write_Data(unsigned int c)
00026 {
00027   RS = 1;
00028   Write(c);
00029 }
00030 
00031 void Write(unsigned int c)
00032 {
00033   LCD_DataBus = c >> 8;
00034   WR = 0;
00035     WR = 1;
00036 
00037   LCD_DataBus = c;
00038   WR = 0;
00039   WR = 1;
00040  
00041 }
00042 
00043 void Write_Command_Data(unsigned int cmd,unsigned int dat)
00044 {
00045     Write_Command(cmd);
00046     Write_Data(dat);
00047 }
00048 
00049 
00050 void Lcd_Init()
00051 {
00052 
00053     digitalWrite(RD,HIGH);
00054     digitalWrite(CS,HIGH);
00055   digitalWrite(WR,HIGH);
00056     
00057     digitalWrite(RST,HIGH);
00058   delay(1);   
00059   digitalWrite(RST,LOW);
00060   delay(10);  
00061   delay(1);
00062     digitalWrite(RST,HIGH);    
00063 
00064     CS = 0;
00065     
00066       Write_Command_Data(0x0011,0x2004);        
00067     Write_Command_Data(0x0013,0xCC00);        
00068     Write_Command_Data(0x0015,0x2600);    
00069     Write_Command_Data(0x0014,0x252A);    
00070 //    Write_Command_Data(0x14,0x002A);        
00071     Write_Command_Data(0x0012,0x0033);        
00072     Write_Command_Data(0x0013,0xCC04);        
00073     //delayms(1); 
00074     Write_Command_Data(0x0013,0xCC06);        
00075     //delayms(1); 
00076     Write_Command_Data(0x0013,0xCC4F);        
00077     //delayms(1); 
00078     Write_Command_Data(0x0013,0x674F);
00079     Write_Command_Data(0x0011,0x2003);
00080     //delayms(1);     
00081     Write_Command_Data(0x0030,0x2609);        
00082     Write_Command_Data(0x0031,0x242C);        
00083     Write_Command_Data(0x0032,0x1F23);        
00084     Write_Command_Data(0x0033,0x2425);        
00085     Write_Command_Data(0x0034,0x2226);        
00086     Write_Command_Data(0x0035,0x2523);        
00087     Write_Command_Data(0x0036,0x1C1A);        
00088     Write_Command_Data(0x0037,0x131D);        
00089     Write_Command_Data(0x0038,0x0B11);        
00090     Write_Command_Data(0x0039,0x1210);        
00091     Write_Command_Data(0x003A,0x1315);        
00092     Write_Command_Data(0x003B,0x3619);        
00093     Write_Command_Data(0x003C,0x0D00);        
00094     Write_Command_Data(0x003D,0x000D);        
00095     Write_Command_Data(0x0016,0x0007);        
00096     Write_Command_Data(0x0002,0x0013);        
00097     Write_Command_Data(0x0003,0x0003);        
00098     Write_Command_Data(0x0001,0x0127);        
00099     //delayms(1); 
00100     Write_Command_Data(0x0008,0x0303);        
00101     Write_Command_Data(0x000A,0x000B);        
00102     Write_Command_Data(0x000B,0x0003);   
00103     Write_Command_Data(0x000C,0x0000);   
00104     Write_Command_Data(0x0041,0x0000);    
00105     Write_Command_Data(0x0050,0x0000);   
00106     Write_Command_Data(0x0060,0x0005);    
00107     Write_Command_Data(0x0070,0x000B);    
00108     Write_Command_Data(0x0071,0x0000);    
00109     Write_Command_Data(0x0078,0x0000);    
00110     Write_Command_Data(0x007A,0x0000);   
00111     Write_Command_Data(0x0079,0x0007);        
00112     Write_Command_Data(0x0007,0x0051);   
00113     //delayms(1);     
00114     Write_Command_Data(0x0007,0x0053);        
00115     Write_Command_Data(0x0079,0x0000);
00116 
00117     Write_Command(0x0022);
00118 
00119     
00120 }
00121 
00122 void SetXY(unsigned int x0,unsigned int x1,unsigned int y0,unsigned int y1)
00123 {
00124   Write_Command_Data(0x0046,(x1 << 8)| x0);
00125   //Write_Command_Data(0x0047,x1);
00126   Write_Command_Data(0x0047,y1);
00127   Write_Command_Data(0x0048,y0);
00128   Write_Command_Data(0x0020,x0);
00129   Write_Command_Data(0x0021,y0);
00130   Write_Command (0x0022);//LCD_WriteCMD(GRAMWR);
00131 }
00132 void Pant(unsigned int color)
00133 {
00134     int i,j;
00135     int color_test;
00136     color_test = 0;
00137     SetXY(0,239,0,319);
00138         //SetXY(0,120,0,120);
00139 
00140     for(i=0;i<320;i++)
00141      {
00142       for (j=0;j<240;j++)
00143         {
00144          Write_Data(color_test);
00145                     color_test+=10;
00146         }
00147 
00148       }     
00149 }
00150 void LCD_clear()
00151 {
00152     unsigned int i,j;
00153     SetXY(0,239,0,319);
00154     for(i=0;i<X_CONST;i++)
00155     {
00156         for(j=0;j<Y_CONST;j++)
00157         {    
00158             Write_Data(0x0000);
00159         }
00160     }
00161 }
00162 
00163 
00164 #undef LCD_DRIVER_C