DmTftIli9341.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 #include "DmTftIli9341.h"
00014 #if defined (DM_TOOLCHAIN_ARDUINO)
00015 DmTftIli9341::DmTftIli9341(uint8_t cs, uint8_t dc)
00016 #elif defined (DM_TOOLCHAIN_MBED)
00017 DmTftIli9341::DmTftIli9341(uint8_t cs, uint8_t dc, uint8_t miso, uint8_t mosi, uint8_t clk)
00018 #endif
00019 : DmTftBase(240, 320){
00020   _cs = cs;
00021   _dc = dc;
00022 #if defined (DM_TOOLCHAIN_MBED)
00023   _miso = miso;
00024   _mosi = mosi;
00025   _clk = clk;
00026 #endif
00027 }
00028 
00029 DmTftIli9341::~DmTftIli9341() {
00030 #if defined (DM_TOOLCHAIN_MBED)
00031 delete _pinCS;
00032 delete _pinDC;
00033 delete _spi;
00034 
00035 _pinCS = NULL;
00036 _pinDC = NULL;
00037 _spi = NULL;
00038 #endif
00039 }
00040 
00041 void DmTftIli9341::writeBus(uint8_t data) {
00042 #if defined (DM_TOOLCHAIN_ARDUINO)
00043   SPCR = _spiSettings;         // SPI Control Register
00044   SPDR = data;                 // SPI Data Register
00045   while(!(SPSR & _BV(SPIF)));  // SPI Status Register Wait for transmission to finish
00046 #elif defined (DM_TOOLCHAIN_MBED)
00047   _spi->write(data);
00048 #endif
00049 }
00050 
00051 void DmTftIli9341::sendCommand(uint8_t index) {
00052   // cbi(_pinCS, _bitmaskCS);
00053   cbi(_pinDC, _bitmaskDC);
00054 
00055   writeBus(index);
00056   // sbi(_pinCS, _bitmaskCS);
00057 }
00058 
00059 void DmTftIli9341::send8BitData(uint8_t data) {
00060   //cbi(_pinCS, _bitmaskCS);
00061   sbi(_pinDC, _bitmaskDC);
00062   writeBus(data);
00063   //sbi(_pinCS, _bitmaskCS);
00064 }
00065 
00066 void DmTftIli9341::sendData(uint16_t data) {
00067   uint8_t dh = data>>8;
00068   uint8_t dl = data&0xff;
00069 
00070   //cbi(_pinCS, _bitmaskCS);
00071   sbi(_pinDC, _bitmaskDC);
00072   writeBus(dh);
00073   writeBus(dl);
00074   //sbi(_pinCS, _bitmaskCS);
00075 }
00076 
00077 void DmTftIli9341::setAddress(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1) {
00078   sendCommand(0x2A); // Set Column
00079   sendData(x0);
00080   sendData(x1);
00081 
00082   sendCommand(0x2B);  // Set Page
00083   sendData(y0);
00084   sendData(y1);
00085 
00086   sendCommand(0x2c);
00087 }
00088 
00089 void DmTftIli9341::init(void) {
00090   setTextColor(BLACK, WHITE);
00091 #if defined (DM_TOOLCHAIN_ARDUINO)
00092   _pinCS  = portOutputRegister(digitalPinToPort(_cs));
00093   _bitmaskCS  = digitalPinToBitMask(_cs);
00094   _pinDC  = portOutputRegister(digitalPinToPort(_dc));
00095   _bitmaskDC  = digitalPinToBitMask(_dc);
00096   pinMode(_cs,OUTPUT);
00097   pinMode(_dc,OUTPUT);
00098 
00099   sbi(_pinCS, _bitmaskCS);
00100 
00101   SPI.begin();
00102   SPI.setClockDivider(SPI_CLOCK_DIV2); // 8 MHz (full! speed!)
00103   SPI.setBitOrder(MSBFIRST);
00104   SPI.setDataMode(SPI_MODE0);
00105   _spiSettings = SPCR;
00106 #elif defined (DM_TOOLCHAIN_MBED)
00107   _pinCS = new DigitalOut((PinName)_cs);
00108   _pinDC = new DigitalOut((PinName)_dc);
00109   sbi(_pinCS, _bitmaskCS);
00110 
00111   _spi = new SPI((PinName)_mosi, (PinName)_miso, (PinName)_clk);
00112   _spi->format(8,0);
00113   _spi->frequency(8000000); // Max SPI speed for display is 10 and for 17 for LPC15xx
00114 #endif
00115   cbi(_pinCS, _bitmaskCS);
00116   delay(135); // This much delay needed??
00117 
00118   // ILI9341 init
00119   sendCommand(0x11);
00120   delay(120);
00121 
00122   sendCommand(0xCF);
00123   send8BitData(0x00);
00124   send8BitData(0xc3);
00125   send8BitData(0X30);
00126 
00127   sendCommand(0xED);
00128   send8BitData(0x64);
00129   send8BitData(0x03);
00130   send8BitData(0X12);
00131   send8BitData(0X81);
00132 
00133   sendCommand(0xE8);
00134   send8BitData(0x85);
00135   send8BitData(0x10);
00136   send8BitData(0x79);
00137 
00138   sendCommand(0xCB);
00139   send8BitData(0x39);
00140   send8BitData(0x2C);
00141   send8BitData(0x00);
00142   send8BitData(0x34);
00143   send8BitData(0x02);
00144 
00145   sendCommand(0xF7);
00146   send8BitData(0x20);
00147 
00148   sendCommand(0xEA);
00149   send8BitData(0x00);
00150   send8BitData(0x00);
00151 
00152   sendCommand(0xC0);    //Power control
00153   send8BitData(0x22);   //VRH[5:0]
00154 
00155   sendCommand(0xC1);    //Power control
00156   send8BitData(0x11);   //SAP[2:0];BT[3:0]
00157 
00158   sendCommand(0xC5);    //VCM control
00159   send8BitData(0x3d);
00160   send8BitData(0x20);
00161 
00162   sendCommand(0xC7);    //VCM control2
00163   send8BitData(0xAA); //0xB0
00164 
00165   sendCommand(0x36);    // Memory Access Control
00166   send8BitData(0x08);
00167 
00168   sendCommand(0x3A);
00169   send8BitData(0x55);
00170 
00171   sendCommand(0xB1);
00172   send8BitData(0x00);
00173   send8BitData(0x13);
00174 
00175   sendCommand(0xB6);    // Display Function Control
00176   send8BitData(0x0A);
00177   send8BitData(0xA2);
00178 
00179   sendCommand(0xF6);
00180   send8BitData(0x01);
00181   send8BitData(0x30);
00182 
00183   sendCommand(0xF2);    // 3Gamma Function Disable
00184   send8BitData(0x00);
00185 
00186   sendCommand(0x26);    //Gamma curve selected
00187   send8BitData(0x01);
00188 
00189   sendCommand(0xE0);    //Set Gamma
00190   send8BitData(0x0F);
00191   send8BitData(0x3F);
00192   send8BitData(0x2F);
00193   send8BitData(0x0C);
00194   send8BitData(0x10);
00195   send8BitData(0x0A);
00196   send8BitData(0x53);
00197   send8BitData(0XD5);
00198   send8BitData(0x40);
00199   send8BitData(0x0A);
00200   send8BitData(0x13);
00201   send8BitData(0x03);
00202   send8BitData(0x08);
00203   send8BitData(0x03);
00204   send8BitData(0x00);
00205 
00206   sendCommand(0XE1);    //Set Gamma
00207   send8BitData(0x00);
00208   send8BitData(0x00);
00209 
00210   send8BitData(0x10);
00211   send8BitData(0x03);
00212   send8BitData(0x0F);
00213   send8BitData(0x05);
00214   send8BitData(0x2C);
00215   send8BitData(0xA2);
00216   send8BitData(0x3F);
00217   send8BitData(0x05);
00218   send8BitData(0x0E);
00219   send8BitData(0x0C);
00220   send8BitData(0x37);
00221   send8BitData(0x3C);
00222   send8BitData(0x0F);
00223 
00224   sendCommand(0x11);    //Exit Sleep
00225   delay(120);
00226   sendCommand(0x29);    //Display on
00227   delay(50);
00228   sbi(_pinCS, _bitmaskCS);
00229   clearScreen();
00230 }
00231 
00232 /*********************************************************************************************************
00233   END FILE
00234 *********************************************************************************************************/
00235 
00236