Diff: UniGraphic/Inits/ILI9341.cpp

Revision:

0:fa952828e34c

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/UniGraphic/Inits/ILI9341.cpp	Sun May 10 10:44:31 2020 +0000
@@ -0,0 +1,179 @@
+ /* mbed UniGraphic library - Device specific class
+ * Copyright (c) 2015 Giuliano Dianda
+ * Released under the MIT License: http://mbed.org/license/mit
+ */
+ 
+#include "Protocols.h"
+#include "ILI9341.h"
+
+//////////////////////////////////////////////////////////////////////////////////
+// display settings ///////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////////////////////
+
+// put in constructor
+//#define LCDSIZE_X       240 // display X pixels, TFTs are usually portrait view
+//#define LCDSIZE_Y       320  // display Y pixels 
+
+
+
+ILI9341::ILI9341(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)
+    : TFT(displayproto, port, CS, reset, DC, WR, RD, LCDSIZE_X, LCDSIZE_Y, name)
+{
+    hw_reset();
+    BusEnable(true);
+    identify(); // will collect tftID and set mipistd flag
+    init();
+    auto_gram_read_format();
+    set_orientation(0);
+    cls();
+    FastWindow(true); // most but not all controllers support this, even if datasheet tells they should. 
+    locate(0,0); 
+}
+ILI9341::ILI9341(proto_t displayproto, PinName* buspins, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD, const char *name, unsigned int LCDSIZE_X, unsigned  int LCDSIZE_Y)
+    : TFT(displayproto, buspins, CS, reset, DC, WR, RD, LCDSIZE_X, LCDSIZE_Y, name)
+{
+    hw_reset();
+    BusEnable(true);
+    identify(); // will collect tftID and set mipistd flag
+    init();
+    auto_gram_read_format();
+    set_orientation(0);
+    cls();
+    FastWindow(true); // most but not all controllers support this, even if datasheet tells they should. 
+    locate(0,0); 
+}
+ILI9341::ILI9341(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)
+    : TFT(displayproto, Hz, mosi, miso, sclk, CS, reset, DC, LCDSIZE_X, LCDSIZE_Y, name)
+{
+    hw_reset(); //TFT class forwards to Protocol class
+    BusEnable(true); //TFT class forwards to Protocol class
+    identify(); // will collect tftID and set mipistd flag
+    init(); // per display custom init cmd sequence, implemented here
+    auto_gram_read_format();// try to get read gram pixel format, could be 16bit or 18bit, RGB or BGR. Will set flags accordingly
+    set_orientation(0); //TFT class does for MIPI standard and some ILIxxx
+    FastWindow(true); // most but not all controllers support this, even if datasheet tells they should. 
+    cls();
+    locate(0,0); 
+}
+// reset and init the lcd controller
+void ILI9341::init()
+{
+    /* Start Initial Sequence ----------------------------------------------------*/
+    
+    wr_cmd8(0xCB);  // POWER_ON_SEQ_CONTROL             
+     wr_data8(0x39);
+     wr_data8(0x2C);
+     wr_data8(0x00);
+     wr_data8(0x34);
+     wr_data8(0x02);
+     
+    wr_cmd8(0xCF);  // POWER_CONTROL_B              
+     wr_data8(0x00);
+     wr_data8(0xC1);  // Applic Notes 81, was 83, C1 enables PCEQ: PC and EQ operation for power saving
+     wr_data8(0x30);
+     
+     wr_cmd8(0xE8);  // DRIVER_TIMING_CONTROL_A               
+     wr_data8(0x85);
+     wr_data8(0x00);  // AN 10, was 01
+     wr_data8(0x78);  // AN 7A, was 79
+     
+     wr_cmd8(0xEA);  // DRIVER_TIMING_CONTROL_B                    
+     wr_data8(0x00);
+     wr_data8(0x00);
+     
+     wr_cmd8(0xED);                     
+     wr_data8(0x64);
+     wr_data8(0x03);
+     wr_data8(0x12);
+     wr_data8(0x81);
+     
+     wr_cmd8(0xF7);  // PUMP_RATIO_CONTROL                   
+     wr_data8(0x20);
+     
+     wr_cmd8(0xC0);                     // POWER_CONTROL_1
+     wr_data8(0x23);  // AN 21, was 26
+     
+     wr_cmd8(0xC1);                     // POWER_CONTROL_2
+     wr_data8(0x10);  // AN 11, was 11
+     
+     wr_cmd8(0xC5);                     // VCOM_CONTROL_1
+     wr_data8(0x3E);  // AN 3F, was 35
+     wr_data8(0x28);  // AN 3C, was 3E
+     
+     wr_cmd8(0xC7);                     // VCOM_CONTROL_2
+     wr_data8(0x86);  // AN A7, was BE
+     
+     
+     
+     wr_cmd8(0xB1);                     // Frame Rate
+     wr_data8(0x00);
+     wr_data8(0x18);  // AN 1B, was 1B  1B=70hz             
+     
+     wr_cmd8(0xB6);                       // display function control, INTERESTING
+     wr_data8(0x08);  // AN 0A, was 0A
+     wr_data8(0x82);  // AN A2
+     wr_data8(0x27);  // AN not present
+  //   wr_data8(0x00);  // was present
+     
+     wr_cmd8(0xF2);                     // Gamma Function Disable
+     wr_data8(0x00);  // AN 00, was 08
+     
+     wr_cmd8(0x26);                     
+     wr_data8(0x01);                 // gamma set for curve 01/2/04/08
+     
+     wr_cmd8(0xE0);                     // positive gamma correction
+     wr_data8(0x0F); 
+     wr_data8(0x31); 
+     wr_data8(0x2B); 
+     wr_data8(0x0C); 
+     wr_data8(0x0E); 
+     wr_data8(0x08); 
+     wr_data8(0x4E); 
+     wr_data8(0xF1); 
+     wr_data8(0x37); 
+     wr_data8(0x07); 
+     wr_data8(0x10); 
+     wr_data8(0x03); 
+     wr_data8(0x0E);
+     wr_data8(0x09); 
+     wr_data8(0x00);
+     
+     wr_cmd8(0xE1);                     // negativ gamma correction
+     wr_data8(0x00); 
+     wr_data8(0x0E); 
+     wr_data8(0x14); 
+     wr_data8(0x03); 
+     wr_data8(0x11); 
+     wr_data8(0x07); 
+     wr_data8(0x31); 
+     wr_data8(0xC1); 
+     wr_data8(0x48); 
+     wr_data8(0x08); 
+     wr_data8(0x0F); 
+     wr_data8(0x0C); 
+     wr_data8(0x31);
+     wr_data8(0x36); 
+     wr_data8(0x0F);
+     
+     //wr_cmd8(0x34);                     // tearing effect off
+     
+     //wr_cmd8(0x35);                     // tearing effect on
+      
+  //   wr_cmd8(0xB7);                       // ENTRY_MODE_SET
+  //   wr_data8(0x07);
+  
+    wr_cmd8(0x36);      // MEMORY_ACCESS_CONTROL (orientation stuff)
+    wr_data8(0x48);
+     
+    wr_cmd8(0x3A);      // COLMOD_PIXEL_FORMAT_SET
+    wr_data8(0x55);     // 16 bit pixel 
+
+    wr_cmd8(0x13); // Nomal Displaymode
+    
+     wr_cmd8(0x11);                     // sleep out
+     wait_ms(150);
+     
+     wr_cmd8(0x29);                     // display on
+     wait_ms(150);
+
+}
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