TFT_MIPI.cpp

00001  /* mbed UniGraphic library - Device specific class
00002  * Copyright (c) 2015 Giuliano Dianda
00003  * Released under the MIT License: http://mbed.org/license/mit
00004  */
00005 #include "Protocols.h "
00006 #include "TFT_MIPI.h"
00007 
00008 //////////////////////////////////////////////////////////////////////////////////
00009 // display settings ///////////////////////////////////////////////////////
00010 /////////////////////////////////////////////////////////////////////////
00011 
00012 // put in constructor
00013 //#define LCDSIZE_X       320 // display X pixels, TFTs are usually portrait view
00014 //#define LCDSIZE_Y       480  // display Y pixels
00015 
00016 
00017 
00018 TFT_MIPI::TFT_MIPI(proto_t displayproto, PortName port, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD, const char *name , unsigned int LCDSIZE_X, unsigned  int LCDSIZE_Y)
00019     : TFT(displayproto, port, CS, reset, DC, WR, RD, LCDSIZE_X, LCDSIZE_Y, name)
00020 {
00021     hw_reset();
00022     BusEnable(true);
00023     identify(); // will collect tftID, set mipistd flag
00024     init();
00025     auto_gram_read_format();// try to get read gram pixel format, could be 16bit or 18bit, RGB or BGR. Will set flags accordingly
00026 //    scrollbugfix=1; // when scrolling 1 line, the last line disappears, set to 1 to fix it, for ili9481 is set automatically in identify()
00027     set_orientation(0);
00028  //   FastWindow(true); // most but not all controllers support this, even if datasheet tells they should. Give a try
00029     cls();
00030     locate(0,0); 
00031 }
00032 TFT_MIPI::TFT_MIPI(proto_t displayproto, int Hz, PinName mosi, PinName miso, PinName sclk, PinName CS, PinName reset, PinName DC, const char *name , unsigned int LCDSIZE_X , unsigned  int LCDSIZE_Y )
00033     : TFT(displayproto, Hz, mosi, miso, sclk, CS, reset, DC, LCDSIZE_X, LCDSIZE_Y, name)
00034 {
00035     hw_reset(); //TFT class forwards to Protocol class
00036     BusEnable(true); //TFT class forwards to Protocol class
00037     identify(); // will collect tftID and set mipistd flag
00038     init(); // per display custom init cmd sequence, implemented here
00039     auto_gram_read_format();// try to get read gram pixel format, could be 16bit or 18bit, RGB or BGR. Will set flags accordingly
00040  //   scrollbugfix=1; // when scrolling 1 line, the last line disappears, set to 1 to fix it, for ili9481 is set automatically in identify()
00041     set_orientation(0); //TFT class does for MIPI standard and some ILIxxx
00042  //   FastWindow(true); // most but not all controllers support this, even if datasheet tells they should. Give a try
00043     cls();
00044     locate(0,0); 
00045 }
00046 // reset and init the lcd controller
00047 void TFT_MIPI::init()
00048 {
00049     /* Start Initial Sequence ----------------------------------------------------*/
00050     
00051     /* Start Initial Sequence ----------------------------------------------------*/
00052     wr_cmd8(0xD0);  // POWER SETTING             
00053     wr_data8(0x07);
00054     wr_data8(0x42);
00055     wr_data8(0x18);
00056     
00057     wr_cmd8(0xD1);  //  VCOM control          
00058     wr_data8(0x00);
00059     wr_data8(0x07);  
00060     wr_data8(0x10);
00061     
00062     wr_cmd8(0xD2);  //   Power_Setting for Normal Mode 
00063     wr_data8(0x01);   // LCD power supply current
00064     wr_data8(0x02);  // charge pumps
00065     
00066     wr_cmd8(0xC0);  // Panel Driving Setting             
00067     wr_data8(0x10);    // 10 orig
00068     wr_data8(0x3B);   //number of lines+1 *8
00069     wr_data8(0x00);
00070     wr_data8(0x02);
00071     wr_data8(0x11);
00072     
00073      // C1 missing? Display_Timing_Setting for Normal Mode
00074     
00075     //renesas does not have this
00076    // wr_cmd8(0xC5); // Frame Rate and Inversion Control                     
00077    // wr_data8(0x03); // 72hz, datashet tells default 02=85hz
00078     
00079     wr_cmd8(0xC8);  // Gamma settings        
00080     wr_data8(0x00);
00081     wr_data8(0x32);
00082     wr_data8(0x36);
00083     wr_data8(0x45);
00084     wr_data8(0x06);
00085     wr_data8(0x16);
00086     wr_data8(0x37);
00087     wr_data8(0x75);
00088     wr_data8(0x77);
00089     wr_data8(0x54);
00090     wr_data8(0x0C);
00091     wr_data8(0x00);
00092      
00093     
00094 
00095     wr_cmd8(0x36);   // MEMORY_ACCESS_CONTROL (orientation stuff)
00096     wr_data8(0x0A);     // 0A as per chinese example (vertical flipped)
00097    
00098     wr_cmd8(0x3A);                     // COLMOD_PIXEL_FORMAT_SET, not present in AN
00099     wr_data8(0x55);                 // 16 bit pixel 
00100     
00101     wr_cmd8(0x13); // Nomal Displaymode
00102     
00103     wr_cmd8(0x11);                     // sleep out
00104     wait_ms(150);
00105      
00106     wr_cmd8(0x29);                     // display on
00107     wait_ms(150);
00108 
00109 }