DmTftSsd2119.cpp

00001 /**********************************************************************************************
00002  Copyright (c) 2014 DisplayModule. All rights reserved.
00003 
00004  Redistribution and use of this source code, part of this source code or any compiled binary
00005  based on this source code is permitted as long as the above copyright notice and following
00006  disclaimer is retained.
00007 
00008  DISCLAIMER:
00009  THIS SOFTWARE IS SUPPLIED "AS IS" WITHOUT ANY WARRANTIES AND SUPPORT. DISPLAYMODULE ASSUMES
00010  NO RESPONSIBILITY OR LIABILITY FOR THE USE OF THE SOFTWARE.
00011  ********************************************************************************************/
00012 
00013 //Tested on NUCLEO-F401RE, LPCXpresso11U68, LPCXpresso824-MAX platform.
00014 
00015 #include "DmTftSsd2119.h"
00016 #if defined (DM_TOOLCHAIN_ARDUINO)
00017 DmTftSsd2119::DmTftSsd2119(uint8_t cs, uint8_t dc)
00018 :DmTftBase(320, 240)
00019 #elif defined (DM_TOOLCHAIN_MBED)
00020 DmTftSsd2119::DmTftSsd2119(PinName cs, PinName dc, PinName mosi, PinName miso, PinName clk)
00021 :DmTftBase(320, 240), spi(mosi, miso, clk)
00022 #endif
00023 {
00024   _cs = cs;
00025   _dc = dc;
00026 }
00027 
00028 DmTftSsd2119::~DmTftSsd2119() {
00029 #if defined (DM_TOOLCHAIN_MBED)
00030 delete _pinCS;
00031 delete _pinDC;
00032 
00033 _pinCS = NULL;
00034 _pinDC = NULL;
00035 #endif
00036 }
00037 
00038 void DmTftSsd2119::writeBus(uint8_t data) {
00039 #if defined (DM_TOOLCHAIN_ARDUINO)
00040   SPCR = _spiSettings;         // SPI Control Register
00041   SPDR = data;                 // SPI Data Register
00042   while(!(SPSR & _BV(SPIF)));  // SPI Status Register Wait for transmission to finish
00043 #elif defined (DM_TOOLCHAIN_MBED)
00044   spi.write(data);
00045 #endif
00046 }
00047 
00048 void DmTftSsd2119::sendCommand(uint8_t index) {
00049   cbi(_pinDC, _bitmaskDC);
00050   writeBus(0x00);
00051   writeBus(index);
00052 }
00053 
00054 void DmTftSsd2119::send8BitData(uint8_t data) {
00055   sbi(_pinDC, _bitmaskDC);
00056   writeBus(data);
00057 }
00058 
00059 void DmTftSsd2119::sendData(uint16_t data) {
00060   uint8_t dh = data>>8;
00061   uint8_t dl = data&0xff;
00062 
00063   sbi(_pinDC, _bitmaskDC);
00064   writeBus(dh);
00065   writeBus(dl);
00066 }
00067 
00068 void DmTftSsd2119::setAddress(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1) {
00069   // Set Start and End Vertical RAM address position
00070   uint16_t verticalStartEndAddress;
00071   verticalStartEndAddress = y0&0xff; // Start vertical RAM address
00072   verticalStartEndAddress += (y1&0xff)<<8; // End vertical RAM address
00073   
00074   sendCommand(0x44);
00075   sendData(verticalStartEndAddress);
00076 
00077   sendCommand(0x45); // Set Start Horizontal RAM address position
00078   sendData(x0);
00079   
00080   sendCommand(0x46);   // Set End Horizontal RAM address position
00081   sendData(x1);
00082 
00083   // Set start position
00084   sendCommand(0x4e); // Set Column, RAM address X (max 320)
00085   sendData(x0);
00086   sendCommand(0x4f);  // Set Page, RAM address Y (max 240)
00087   sendData(y0);
00088   sendCommand(0x22); // RAM data write
00089 }
00090 
00091 // Separate setPixel, because setAddress is to many instructions
00092 void DmTftSsd2119::setPixel(uint16_t x, uint16_t y, uint16_t color) {
00093   cbi(_pinCS, _bitmaskCS);
00094 
00095   // setAddress(x, y, x, y);
00096   sendCommand(0x4e); // Set Column, RAM address X (max 320)
00097   sendData(x);
00098 
00099   sendCommand(0x4f);  // Set Page, RAM address Y (max 240)
00100   sendData(y);
00101   
00102   sendCommand(0x22);
00103   sendData(color);
00104   
00105   sbi(_pinCS, _bitmaskCS);
00106 }
00107 
00108 void DmTftSsd2119::init(void) {
00109   setTextColor(BLACK, WHITE);
00110 #if defined (DM_TOOLCHAIN_ARDUINO)
00111   _pinCS  = portOutputRegister(digitalPinToPort(_cs));
00112   _bitmaskCS  = digitalPinToBitMask(_cs);
00113   _pinDC  = portOutputRegister(digitalPinToPort(_dc));
00114   _bitmaskDC  = digitalPinToBitMask(_dc);
00115   pinMode(_cs,OUTPUT);
00116   pinMode(_dc,OUTPUT);
00117 
00118   sbi(_pinCS, _bitmaskCS);
00119 
00120   SPI.begin();
00121   SPI.setClockDivider(SPI_CLOCK_DIV2); // 8 MHz (full! speed!)
00122   SPI.setBitOrder(MSBFIRST);
00123   SPI.setDataMode(SPI_MODE0);
00124   _spiSettings = SPCR;
00125 #elif defined (DM_TOOLCHAIN_MBED)
00126   _pinCS = new DigitalOut(_cs);
00127   _pinDC = new DigitalOut(_dc);
00128   sbi(_pinCS, _bitmaskCS);
00129 
00130   spi.format(8,0);
00131   spi.frequency(6000000);
00132 #endif
00133   cbi(_pinCS, _bitmaskCS);
00134   delay(135); // This much delay needed??
00135 
00136   delay(120);
00137 
00138   sendCommand(0x28);    // VCOM OTP
00139   sendData(0x0006);   
00140 
00141   sendCommand(0x00);    // Start Oscillator
00142   sendData(0x0001);   
00143 
00144   sendCommand(0x10);    // Set Sleep mode
00145   sendData(0x0000);     // Sleep out
00146   delay(30);
00147 
00148   sendCommand(0x11);    // Entry Mode ,SET LCM interface Mode.
00149   sendData(0x6870);     //  SET 65K colors,MCU interface Mode.TypeB ,ID=11 AM=0 the address counter is updated in the horizontal direction.
00150 
00151   sendCommand(0x15);    // Generic Interface Control. DOCLK，HSYNC，VSYNC，DE
00152   sendData(0x0000);
00153 
00154   sendCommand(0x01);    // Driver Output Control
00155   sendData(0x72EF);     // Set REV,GD,BGR,SM,RL,TB
00156 
00157   sendCommand(0x02);    // LCD Driving Waveform Control,LCD 
00158   sendData(0x0600);  
00159 
00160   sendCommand(0x08);    // Set the scanning starting position of the gate driver.
00161   sendData(0x0000);     // The valid range is from 1 to 240
00162      
00163   // LCD POWER CONTROL
00164   sendCommand(0x03);    // Power Control 1, VGH，VGL
00165   sendData(0x6A38);     // Set dct=fline*4, VGH=2 x VCIX2 + VCI,VGL=-(VGH) + VCix2, DC=Fline × 8, AP=Medium to large   
00166    
00167   sendCommand(0X0B);    // Frame Cycle Control.
00168   sendData(0x5308);     // SET NO SDT=1 clock cycle (POR) ,Sets the equalizing period,    
00169 
00170   sendCommand(0x0C);    // Power Control 2 VCIX2
00171   sendData(0x0003);     // Adjust VCIX2 output voltage=5.7V
00172 
00173   sendCommand(0x0D);    // Set amplitude magnification of VLCD63     
00174   sendData(0x000A);     // vlcd63=VREF(2.0V)* 2.335V
00175 
00176   sendCommand(0x0E);    // SET VCOMG VDV .VCOM
00177   sendData(0x2B00);     // SET VCOMG=1,VCOM=VLCD63*  //2A 
00178 
00179   sendCommand(0X0F);    // Gate Scan Position.
00180   sendData(0x0000);     // The valid range is from 1 to 240.   
00181 
00182   sendCommand(0x1E);    // SET nOTP VCOMH ,VCOMH
00183   sendData(0x00B7);     // SET nOTP=0, VCOMH=VLCD63* //B8
00184 
00185   sendCommand(0x25);    // Frame Frequency Control
00186   sendData(0x8000);     // SET OSC  65Hz //0A-70hz
00187 
00188   sendCommand(0x26);    // Analog setting
00189   sendData(0x3800);     
00190 
00191   sendCommand(0x27);    // Analog setting
00192   sendData(0x0078);
00193 
00194 //sendCommand(0x12);    // Sleep mode
00195 //sendData(0xD999);   
00196 
00197   // SET WINDOW
00198   sendCommand(0x4E);    // Ram Address Set
00199   sendData(0x0000);      
00200 
00201   sendCommand(0x4F);    // Ram Address Set
00202   sendData(0x0000);    
00203 
00204   //  Gamma Control
00205   sendCommand(0x30);
00206   sendData(0x0000);//1
00207 
00208   sendCommand(0x31);
00209   sendData(0x0104);//2
00210 
00211   sendCommand(0x32);
00212   sendData(0x0100);//3
00213 
00214   sendCommand(0x33);
00215   sendData(0x0305);//4
00216 
00217   sendCommand(0x34);
00218   sendData(0x0505);//4
00219 
00220   sendCommand(0x35);
00221   sendData(0x0305);//5
00222 
00223   sendCommand(0x36);
00224   sendData(0x0707);//6
00225 
00226   sendCommand(0x37);
00227   sendData(0x0300);//7
00228 
00229   sendCommand(0x3A);
00230   sendData(0x1200);//8
00231 
00232   sendCommand(0x3B);
00233   sendData(0x0800);//9  
00234      
00235   // Final init
00236   delay(300);
00237   sendCommand(0x07);    // Display Control 
00238   
00239   sendData(0x0033);     // Display on 
00240   delay(100);
00241 
00242   sendCommand(0x22);    // RAM data write/read
00243         
00244   delay(50);
00245   sbi(_pinCS, _bitmaskCS);
00246   clearScreen();
00247 }
00248 
00249 /*********************************************************************************************************
00250   END FILE
00251 *********************************************************************************************************/