Andrew Russell
/
Display_Driver
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main.cpp
00001 #include "mbed.h" 00002 #include "stdlib.h" 00003 #include "string.h" 00004 //--------------------------------------------------------- 00005 /* 00006 SSD1963_8-bit 00007 Program for writing to Newhaven Display 5.7" TFT 640x480 00008 00009 (c)2010 Curt Lagerstam - Newhaven Display International, LLC. 00010 00011 This program is free software; you can redistribute it and/or modify 00012 it under the terms of the GNU General Public License as published by 00013 the Free Software Foundation; either version 2 of the License, or 00014 (at your option) any later version. 00015 00016 This program is distributed in the hope that it will be useful, 00017 but WITHOUT ANY WARRANTY; without even the implied warranty of 00018 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00019 GNU General Public License for more details. 00020 */ 00021 //--------------------------------------------------------- 00022 unsigned char command; 00023 unsigned char data1; 00024 int DOWN; 00025 int RIGHT; 00026 //--------------------------------------------------------- 00027 //DigitalOut RS(p14); /* reset to SSD1963 */ 00028 DigitalOut nWR(p15); /* write out to SSD1963 active LOW */ 00029 DigitalOut nRD(p16); /* read data from SSD1963 active LOW */ 00030 DigitalOut CS(p13); /* chip select the SSD1963 active LOW */ 00031 DigitalOut DC(p17); /* Data/Command Select: 1=Command, 0=Data); */ 00032 DigitalOut myled(LED1); /* for test purposes only */ 00033 00034 /* data bus I/O pins */ 00035 00036 00037 //BusInOut DB(p12,p11,p10,p9,p8,p7,p6,p5); /* databus D0-D7 */ 00038 00039 BusInOut DB(p5,p6,p7,p8,p9,p10,p11,p12); /* databus D0-D7 */ 00040 00041 /*Following are HARD WIRED on the controller board */ 00042 //DigitalIn DOWN = P3^6; 00043 //sbit RIGHT = P3^2; 00044 00045 //****************************************************************************** 00046 void Write_Command(unsigned char command) { 00047 nRD = 1; /* make sure the RD is HIGH just to be sure */ 00048 DC=1; 00049 nWR = 0; 00050 CS=0; 00051 wait_us(1); 00052 DB=command; 00053 DB.write(command); 00054 //DB=command; 00055 wait_us(1); 00056 nWR = 1; 00057 CS = 1; 00058 00059 } 00060 //;****************************************************************************** 00061 void Write_Data(unsigned char data1) { 00062 nRD = 1; 00063 DC=0; 00064 nWR = 0; 00065 CS=0; 00066 wait_us(1); 00067 DB=data1; 00068 DB.write(data1); 00069 //DB=data1; 00070 wait_us(1); 00071 nWR = 1; 00072 CS = 1; 00073 } 00074 //==================================================== 00075 void Command_Write(unsigned char REG,unsigned char VALUE) { 00076 Write_Command(REG); 00077 Write_Data(VALUE); 00078 } 00079 //====================================================== 00080 void SendData(unsigned long color) { 00081 Write_Data((color)>>16); //red 00082 Write_Data((color)>>8); //green 00083 Write_Data(color); //blue 00084 } 00085 //====================================================== 00086 // initialize controller 00087 //====================================================== 00088 void Init_SSD1963 (void) { 00089 //RESET = 0; 00090 wait_ms(5); 00091 //RESET = 1; 00092 //myled-!myled; 00093 DOWN = 0; 00094 RIGHT = 1; 00095 wait_ms(100); 00096 Write_Command(0x01); //Software Reset 00097 wait_ms(100); 00098 Write_Command(0x01); 00099 Write_Command(0x01); 00100 wait_ms(10); 00101 Command_Write(0xe0,0x01); //START PLL 00102 Command_Write(0xe0,0x03); //LOCK PLL 00103 Write_Command(0xb0); //SET LCD MODE SET TFT 18Bits MODE 00104 Write_Data(0x0c); //SET TFT MODE & hsync+Vsync+DEN MODE 00105 Write_Data(0x80); //SET TFT MODE & hsync+Vsync+DEN MODE 00106 Write_Data(0x02); //SET horizontal size=640-1 HightByte 00107 Write_Data(0x7f); //SET horizontal size=640-1 LowByte 00108 Write_Data(0x01); //SET vertical size=480-1 HightByte 00109 Write_Data(0xdf); //SET vertical size=480-1 LowByte 00110 Write_Data(0x00); //SET even/odd line RGB seq.=RGB 00111 Command_Write(0xf0,0x00); //SET pixel data I/F format=8bit 00112 Command_Write(0x3a,0x60); // SET R G B format = 6 6 6 00113 Write_Command(0xe6); //SET PCLK freq=4.94MHz ; pixel clock frequency 00114 Write_Data(0x02); 00115 Write_Data(0xff); 00116 Write_Data(0xff); 00117 Write_Command(0xb4); //SET HBP, 00118 Write_Data(0x02); //SET HSYNC Total=760 00119 Write_Data(0xf8); 00120 Write_Data(0x00); //SET HBP 68 00121 Write_Data(0x44); 00122 Write_Data(0x0f); //SET VBP 16=15+1 00123 Write_Data(0x00); //SET Hsync pulse start position 00124 Write_Data(0x00); 00125 Write_Data(0x00); //SET Hsync pulse subpixel start position 00126 Write_Command(0xb6); //SET VBP, 00127 Write_Data(0x01); //SET Vsync total 00128 Write_Data(0xf8); 00129 Write_Data(0x00); //SET VBP=19 00130 Write_Data(0x13); 00131 Write_Data(0x07); //SET Vsync pulse 8=7+1 00132 Write_Data(0x00); //SET Vsync pulse start position 00133 Write_Data(0x00); 00134 Write_Command(0x2a); //SET column address 00135 Write_Data(0x00); //SET start column address=0 00136 Write_Data(0x00); 00137 Write_Data(0x02); //SET end column address=639 00138 Write_Data(0x7f); 00139 Write_Command(0x2b); //SET page address 00140 Write_Data(0x00); //SET start page address=0 00141 Write_Data(0x00); 00142 Write_Data(0x01); //SET end page address=479 00143 Write_Data(0xdf); 00144 Write_Command(0x29); //SET display on 00145 } 00146 //====================================================== 00147 void WindowSet(unsigned int s_x,unsigned int e_x,unsigned int s_y,unsigned int e_y) { 00148 Write_Command(0x2a); //SET page address 00149 Write_Data((s_x)>>8); //SET start page address=0 00150 Write_Data(s_x); 00151 Write_Data((e_x)>>8); //SET end page address=639 00152 Write_Data(e_x); 00153 Write_Command(0x2b); //SET column address 00154 Write_Data((s_y)>>8); //SET start column address=0 00155 Write_Data(s_y); 00156 Write_Data((e_y)>>8); //SET end column address=479 00157 Write_Data(e_y); 00158 00159 } 00160 //======================================= 00161 void FULL_ON(unsigned long dat) { 00162 unsigned char x,y; 00163 printf("%s\n\r","vvvv"); 00164 WindowSet(0x0000,0x027f,0x0000,0x01df); 00165 printf("%s\n\r","jjjj"); 00166 Write_Command(0x2c); 00167 for (x=0;x<480;x++) { 00168 for (y= 0;y<640;y++) { 00169 SendData(dat); 00170 } 00171 } 00172 printf("%s\n\r","qqqqq"); 00173 } 00174 //======================================= 00175 void QUADS() { 00176 unsigned int i,j; 00177 00178 WindowSet(0x0000,0x027f,0x0000,0x01df); 00179 00180 Write_Command(0x2c); 00181 00182 for (j= 0 ;j<240;j++) { 00183 for (i=0;i<320;i++) { 00184 SendData(0x0000FF); //blue 00185 } 00186 for (i=0;i<320;i++) { 00187 SendData(0xFF0000); //red 00188 } 00189 } 00190 for (j= 0 ;j<240;j++) { 00191 for (i=0;i<320;i++) { 00192 SendData(0xFFFF00); //yellow 00193 } 00194 for (i=0;i<320;i++) { 00195 SendData(0x00FF00); //green 00196 } 00197 } 00198 } 00199 //======================================= 00200 int main(void) { 00201 wait_ms(100); 00202 myled=1; 00203 wait_ms(500); 00204 myled=!myled; 00205 wait_ms(500); 00206 myled-!myled; 00207 Init_SSD1963(); 00208 while (1) { 00209 Init_SSD1963(); 00210 wait_ms(5); 00211 printf("%s\n\r","here"); 00212 QUADS(); 00213 printf("%s\n\r","then here"); 00214 FULL_ON(0x0000ff); //blue 00215 myled=!myled; 00216 wait(2); 00217 //FULL_ON(0x000008); //blue 00218 //myled=!myled; 00219 } 00220 }
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