ili9320.h
1 #ifndef __ILI9320_H__ 2 #define __ILI9320_H__ 3 #include "reg52.h" 4 5 #define u8 unsigned char 6 #define u16 unsigned int 7 #define uchar unsigned char 8 #define uint unsigned int 9 10 //#define LCD_COLORS_NUM 65536 11 #define LCD_SIZE_X 240 12 #define LCD_SIZE_Y 320 13 14 15 16 //------------------------------------------------------- 17 //-----------------------端口定义------------------------ 18 19 #define LCD_DataH P0//高8位数据 20 #define LCD_DataL P1//低8位数据 21 22 sbit LCD_RST= P2^0 ;//复位 23 sbit LCD_CS =P2^1;//使能端 24 25 sbit LCD_RS= P3^5; //数据|指令 26 sbit LCD_WR= P3^6; //写 27 sbit LCD_RD =P3^7; //读 28 29 //--------------------------------------------------------- 30 //-------------------函数声明------------------------------ 31 32 //////RGB转换，888->565///// 33 u16 LCD_RGB(u8 R,u8 G,u8 B); 34 35 /////////延时////////// 36 void LCD_Delay(uint t); 37 38 ///////写索引寄存器//////// 39 void LCD_WriteIndex(u8 index); 40 41 ///////写数据//////// 42 void LCD_WriteData(u16 Data); 43 44 ///////写寄存器////////// 45 void LCD_WriteCOM(u8 index,u16 Data); 46 47 /////读芯片ID,0x9320///// 48 u16 LCD_ReadID(void); 49 50 //////读像素//////// 51 u16 LCD_ReadPixel(u16 x,u16 y); 52 53 //////设置像素//////// 54 void LCD_SetPixel(u16 color); 55 56 //////设置显示窗口///// 57 void LCD_SetWindow(uint x1,uint y1,uint x2,uint y2); 58 59 ///////设置光标////// 60 //void LCD_SetCursor(uint x,uint y); 61 62 ///////LCD初始化/////// 63 void LCD_Init(void); 64 65 #endif
ili9320.c
1 #include "reg52.h" 2 #include "ili9320.h" 3 4 5 //----------------------------------------------------- 6 //读取芯片型号，型号：0X9320 7 8 u16 LCD_ReadID(void) 9 { 10 u16 t; 11 LCD_WriteIndex(0x00); 12 LCD_DataH=0xff; 13 LCD_DataL=0xff; 14 LCD_RS=1; 15 LCD_RD=1; 16 LCD_RD=0; //RD不需要变换两次 17 t=(LCD_DataH<<8)|LCD_DataL ; 18 return t; 19 } 20 21 22 //----------------------------------------------------- 23 //在65536色彩下，读取像素点 24 25 u16 LCD_ReadPixel(u16 x,u16 y) 26 { 27 u16 t; 28 LCD_WriteCOM(0x20,x); 29 LCD_WriteCOM(0x21,y); 30 LCD_WriteIndex(0x22); 31 32 LCD_DataH=0xff; 33 LCD_DataL=0xff; 34 LCD_RS=1; 35 LCD_RD=1; 36 LCD_RD=0; 37 LCD_RD=1; 38 LCD_RD=0; //RD需要变换两次 39 t=(LCD_DataH<<8)|LCD_DataL ; 40 return t; 41 } 42 43 //------------------------------------------------------ 44 //设置显示窗口 45 46 void LCD_SetWindow(uint x1,uint y1,uint x2,uint y2) 47 { 48 LCD_WriteCOM(0x20,x1); 49 LCD_WriteCOM(0x21,y1); 50 LCD_WriteCOM(0x50,x1); 51 LCD_WriteCOM(0x52,y1); 52 LCD_WriteCOM(0x51,x2); 53 LCD_WriteCOM(0x53,y2); 54 LCD_WriteIndex(0x22); 55 } 56 57 //------------------------------------------------------- 58 //设置光标 59 void LCD_SetCursor(uint x,uint y) 60 { 61 LCD_WriteCOM(0x20,x); 62 LCD_WriteCOM(0x21,y); 63 LCD_WriteIndex(0x22); 64 } 65 66 67 68 69 //---------------------------------------------------------- 70 //在65536色彩下，将18位颜色数据转化为16位 71 u16 LCD_RGB(u8 R,u8 G,u8 B) 72 { 73 u16 tRGB; 74 tRGB=0x00; 75 tRGB=tRGB|R; 76 tRGB=tRGB<<6; 77 tRGB=tRGB|G; 78 tRGB=tRGB<<5; 79 tRGB=tRGB|B; 80 return tRGB; 81 } 82 83 //--------------------------------------------------------- 84 //延时函数 85 void LCD_Delay(uint t) 86 { 87 for(;t>0;t--); 88 } 89 90 //---------------------------------------------------------- 91 //写入索引寄存器 92 void LCD_WriteIndex(u8 index) 93 { 94 LCD_RS=0; 95 LCD_RD=1; 96 LCD_WR=0; 97 LCD_DataH=0x00; 98 LCD_DataL=index; 99 LCD_WR=1; 100 } 101 102 //----------------------------------------- 103 //写入数据 104 105 void LCD_WriteData(u16 Data) 106 { 107 LCD_RS=1; 108 LCD_WR=0; 109 LCD_DataH=Data>>8; 110 LCD_DataL=Data; 111 LCD_WR=1; 112 113 } 114 115 //----------------------------------------- 116 //写寄存器 117 118 void LCD_WriteCOM(u8 index,u16 Data) 119 { 120 LCD_WriteIndex(index); 121 LCD_WriteData(Data); 122 } 123 124 125 126 //----------------------------------------------- 127 //LCD初始化函数 128 129 void LCD_Init(void) 130 { 131 //************* Reset LCD Driver ****************// 132 LCD_CS=0; 133 LCD_RST=1; 134 LCD_RD=1; 135 LCD_Delay(10); 136 LCD_RST=0; 137 LCD_Delay(100); 138 LCD_RST=1; 139 LCD_Delay(10); 140 //************* Start Initial Sequence **********// 141 LCD_WriteCOM(0x00, 0x0001); // 开始内部振荡 142 LCD_WriteCOM(0x01, 0x0100); // set SS and SM bit 143 LCD_WriteCOM(0x02, 0x0400); // set 1 line inversion 144 LCD_WriteCOM(0x03, 0x1030); 145 LCD_WriteCOM(0x04, 0x0000); // Resize register 146 LCD_WriteCOM(0x08, 0x0202); // set the back porch and front porch 147 LCD_WriteCOM(0x09, 0x0000); // set non-display area refresh cycle ISC[3:0] 148 LCD_WriteCOM(0x0A, 0x0000); // FMARK function 149 LCD_WriteCOM(0x0C, 0x0000); // RGB interface setting 150 LCD_WriteCOM(0x0D, 0x0000); // Frame marker Position 151 LCD_WriteCOM(0x0F, 0x0000); // RGB interface polarity 152 153 LCD_WriteCOM(0x07, 0x0101); // Display Control 1 154 LCD_Delay(500); 155 156 //*************Power On sequence ****************// LCD_WriteCOM(0x51, 0x00, 0xEF); 157 158 LCD_WriteCOM(0x10, 0x16b0); 159 LCD_WriteCOM(0x11, 0x0007); // DC1[2:0], DC0[2:0], VC[2:0] 160 LCD_WriteCOM(0x12, 0x0138); 161 LCD_WriteCOM(0x13, 0x0b00); 162 LCD_WriteCOM(0x2B, 0x2008); 163 // ---------- Gamma Control ---------- // 164 LCD_WriteCOM(0x30, 0x0000); 165 LCD_WriteCOM(0x31, 0x0306); 166 LCD_WriteCOM(0x32, 0x0200); 167 LCD_WriteCOM(0x35, 0x0107); 168 LCD_WriteCOM(0x36, 0x0404); 169 LCD_WriteCOM(0x37, 0x0606); 170 LCD_WriteCOM(0x38, 0x0105); 171 LCD_WriteCOM(0x39, 0x0707); 172 LCD_WriteCOM(0x3C, 0x0600); 173 LCD_WriteCOM(0x3D, 0x0807); 174 // ---------- Window Address Area ---------- // 175 LCD_WriteCOM(0x50, 0x0000); // Horizontal GRAM Start Address-----HSA[7:0] 176 LCD_WriteCOM(0x51, 0x00EF); // Horizontal GRAM End Address-----HEA[7:0] 177 LCD_WriteCOM(0x52, 0x0000); // Vertical GRAM Start Address-----VSA[8:0] 178 LCD_WriteCOM(0x53, 0x013F); // Vertical GRAM Start Address-----VEA[8:0] 179 // ---------- Gate Scan Control ---------- // 180 LCD_WriteCOM(0x60, 0x2700); // GS, NL[5:0], SCN[5:0] 181 LCD_WriteCOM(0x61, 0x0001); // NDL,VLE, REV 182 LCD_WriteCOM(0x6A, 0x0000); // VL[8:0] 183 // ---------- Partial Display Control ---------- // 184 LCD_WriteCOM(0x80, 0x0000); // Partial Image 1 Display Position-----PTDP0[8:0] 185 LCD_WriteCOM(0x81, 0x0000); // Partial Image 1 Start Address-----PTSA0[8:0] 186 LCD_WriteCOM(0x82, 0x0000); // Partial Image 1 End Address-----PTEA0[8:0] 187 LCD_WriteCOM(0x83, 0x0000); // Partial Image 2 Display Position-----PTDP1[8:0] 188 LCD_WriteCOM(0x84, 0x0000); // Partial Image 2 Start Address-----PTSA1[8:0] 189 LCD_WriteCOM(0x85, 0x0000); // Partial Image 2 Start Address-----PTEA1[8:0] 190 // ---------- Panel Interface Control ---------- // 191 LCD_WriteCOM(0x90, 0x0013); // Panel Interface Control 1-----DIVI[1:0], RTNI[4:0] 192 LCD_WriteCOM(0x92, 0x0000); // Panel Interface Control 2-----NOWI[2:0] 193 194 LCD_WriteCOM(0x93, 0x0001); //Panel Interface Control 3-----MCPI[2:0] 195 196 LCD_WriteCOM(0x95, 0x0110); // Panel Interface Control 4-----DIVE[1:0], RTNE[5:0] 197 LCD_WriteCOM(0x97, 0x0000); // Panel Interface Control 5-----NOWE[3:0] 198 LCD_WriteCOM(0x98, 0x0000); // Panel Interface Control 6-----MCPE[2:0] 199 200 LCD_WriteCOM(0x07, 0x0173); // Display Control 1----- display ON 201 LCD_Delay(500); 202 203 }