Darren Ulrich / UniGraphic

Added SPI burst mode to spi 8 bit.

Dependents:   Bicycl_Computer_NUCLEO-F411RE Bicycl_Computer_NUCLEO-L476RG

Fork of UniGraphic by GraphicsDisplay

Added SPI burst mode to this graphics driver. If whoever wants this rolled in to repository let me know. I replaced _spi.write(); with fastWrite(); and clearRX();

SPI8.cpp

// need to re-create SPI firmware to access SPI handle
static SPI_HandleTypeDef SpiHandle;

void SPI8::fastWrite(int data) {
    
      SpiHandle.Instance = SPI1;
    // Check if data is transmitted
    while ((SpiHandle.Instance->SR & SPI_SR_TXE) == 0);
    SpiHandle.Instance->DR = data;
}
    
void SPI8::clearRX( void ) {
        SpiHandle.Instance = SPI1;
    //Check if the RX buffer is busy
    //While busy, keep checking
    while (SpiHandle.Instance->SR & SPI_SR_BSY){   
        // Check RX buffer readable
        while ((SpiHandle.Instance->SR & SPI_SR_RXNE) == 0);
        int dummy = SpiHandle.Instance->DR;
    }
}

Inits/ILI9341.cpp@36:0ced7cf0ec8c, 2017-08-04 (annotated)

Committer:
trevieze
Date:
Fri Aug 04 19:47:21 2017 +0000
Revision:
36:0ced7cf0ec8c
Parent:
11:b842b8e332cb
Child:
21:ae0a4eedfc90
Added Gimp Graphic Display Routine for Compass

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Geremia 4:12ba0ecc2c1f 1 /* mbed UniGraphic library - Device specific class
Geremia 4:12ba0ecc2c1f 2 * Copyright (c) 2015 Giuliano Dianda
Geremia 4:12ba0ecc2c1f 3 * Released under the MIT License: http://mbed.org/license/mit
Geremia 4:12ba0ecc2c1f 4 */
Geremia 4:12ba0ecc2c1f 5
Geremia 2:713844a55c4e 6 #include "Protocols.h"
Geremia 2:713844a55c4e 7 #include "ILI9341.h"
Geremia 2:713844a55c4e 8
Geremia 2:713844a55c4e 9 //////////////////////////////////////////////////////////////////////////////////
Geremia 2:713844a55c4e 10 // display settings ///////////////////////////////////////////////////////
Geremia 2:713844a55c4e 11 /////////////////////////////////////////////////////////////////////////
Geremia 2:713844a55c4e 12
dreschpe 9:1749ae993cfe 13 // put in constructor
dreschpe 9:1749ae993cfe 14 //#define LCDSIZE_X 240 // display X pixels, TFTs are usually portrait view
dreschpe 9:1749ae993cfe 15 //#define LCDSIZE_Y 320 // display Y pixels
Geremia 2:713844a55c4e 16
Geremia 2:713844a55c4e 17
Geremia 2:713844a55c4e 18
dreschpe 9:1749ae993cfe 19 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)
Geremia 2:713844a55c4e 20 : TFT(displayproto, port, CS, reset, DC, WR, RD, LCDSIZE_X, LCDSIZE_Y, name)
Geremia 2:713844a55c4e 21 {
Geremia 2:713844a55c4e 22 hw_reset();
Geremia 2:713844a55c4e 23 BusEnable(true);
Geremia 7:bb0383b91104 24 identify(); // will collect tftID and set mipistd flag
Geremia 2:713844a55c4e 25 init();
Geremia 11:b842b8e332cb 26 auto_gram_read_format();
Geremia 4:12ba0ecc2c1f 27 set_orientation(0);
Geremia 2:713844a55c4e 28 cls();
Geremia 10:668cf78ff93a 29 FastWindow(true); // most but not all controllers support this, even if datasheet tells they should.
Geremia 2:713844a55c4e 30 locate(0,0);
Geremia 2:713844a55c4e 31 }
dreschpe 9:1749ae993cfe 32 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)
Geremia 2:713844a55c4e 33 : TFT(displayproto, Hz, mosi, miso, sclk, CS, reset, DC, LCDSIZE_X, LCDSIZE_Y, name)
Geremia 2:713844a55c4e 34 {
Geremia 2:713844a55c4e 35 hw_reset(); //TFT class forwards to Protocol class
Geremia 2:713844a55c4e 36 BusEnable(true); //TFT class forwards to Protocol class
Geremia 7:bb0383b91104 37 identify(); // will collect tftID and set mipistd flag
Geremia 2:713844a55c4e 38 init(); // per display custom init cmd sequence, implemented here
Geremia 11:b842b8e332cb 39 auto_gram_read_format();// try to get read gram pixel format, could be 16bit or 18bit, RGB or BGR. Will set flags accordingly
Geremia 4:12ba0ecc2c1f 40 set_orientation(0); //TFT class does for MIPI standard and some ILIxxx
Geremia 10:668cf78ff93a 41 FastWindow(true); // most but not all controllers support this, even if datasheet tells they should.
Geremia 2:713844a55c4e 42 cls();
Geremia 2:713844a55c4e 43 locate(0,0);
Geremia 2:713844a55c4e 44 }
Geremia 2:713844a55c4e 45 // reset and init the lcd controller
Geremia 2:713844a55c4e 46 void ILI9341::init()
Geremia 2:713844a55c4e 47 {
Geremia 2:713844a55c4e 48 /* Start Initial Sequence ----------------------------------------------------*/
Geremia 2:713844a55c4e 49
Geremia 2:713844a55c4e 50 wr_cmd8(0xCB); // POWER_ON_SEQ_CONTROL
Geremia 2:713844a55c4e 51 wr_data8(0x39);
Geremia 2:713844a55c4e 52 wr_data8(0x2C);
Geremia 2:713844a55c4e 53 wr_data8(0x00);
Geremia 2:713844a55c4e 54 wr_data8(0x34);
Geremia 2:713844a55c4e 55 wr_data8(0x02);
Geremia 2:713844a55c4e 56
Geremia 2:713844a55c4e 57 wr_cmd8(0xCF); // POWER_CONTROL_B
Geremia 2:713844a55c4e 58 wr_data8(0x00);
Geremia 2:713844a55c4e 59 wr_data8(0xC1); // Applic Notes 81, was 83, C1 enables PCEQ: PC and EQ operation for power saving
Geremia 2:713844a55c4e 60 wr_data8(0x30);
Geremia 2:713844a55c4e 61
Geremia 2:713844a55c4e 62 wr_cmd8(0xE8); // DRIVER_TIMING_CONTROL_A
Geremia 2:713844a55c4e 63 wr_data8(0x85);
Geremia 2:713844a55c4e 64 wr_data8(0x00); // AN 10, was 01
Geremia 2:713844a55c4e 65 wr_data8(0x78); // AN 7A, was 79
Geremia 2:713844a55c4e 66
Geremia 2:713844a55c4e 67 wr_cmd8(0xEA); // DRIVER_TIMING_CONTROL_B
Geremia 2:713844a55c4e 68 wr_data8(0x00);
Geremia 2:713844a55c4e 69 wr_data8(0x00);
Geremia 2:713844a55c4e 70
Geremia 2:713844a55c4e 71 wr_cmd8(0xED);
Geremia 2:713844a55c4e 72 wr_data8(0x64);
Geremia 2:713844a55c4e 73 wr_data8(0x03);
Geremia 2:713844a55c4e 74 wr_data8(0x12);
Geremia 2:713844a55c4e 75 wr_data8(0x81);
Geremia 2:713844a55c4e 76
Geremia 2:713844a55c4e 77 wr_cmd8(0xF7); // PUMP_RATIO_CONTROL
Geremia 2:713844a55c4e 78 wr_data8(0x20);
Geremia 2:713844a55c4e 79
Geremia 2:713844a55c4e 80 wr_cmd8(0xC0); // POWER_CONTROL_1
Geremia 2:713844a55c4e 81 wr_data8(0x23); // AN 21, was 26
Geremia 2:713844a55c4e 82
Geremia 2:713844a55c4e 83 wr_cmd8(0xC1); // POWER_CONTROL_2
Geremia 2:713844a55c4e 84 wr_data8(0x10); // AN 11, was 11
Geremia 2:713844a55c4e 85
Geremia 2:713844a55c4e 86 wr_cmd8(0xC5); // VCOM_CONTROL_1
Geremia 2:713844a55c4e 87 wr_data8(0x3E); // AN 3F, was 35
Geremia 2:713844a55c4e 88 wr_data8(0x28); // AN 3C, was 3E
Geremia 2:713844a55c4e 89
Geremia 2:713844a55c4e 90 wr_cmd8(0xC7); // VCOM_CONTROL_2
Geremia 2:713844a55c4e 91 wr_data8(0x86); // AN A7, was BE
Geremia 2:713844a55c4e 92
Geremia 2:713844a55c4e 93
Geremia 2:713844a55c4e 94
Geremia 2:713844a55c4e 95 wr_cmd8(0xB1); // Frame Rate
Geremia 2:713844a55c4e 96 wr_data8(0x00);
Geremia 2:713844a55c4e 97 wr_data8(0x18); // AN 1B, was 1B 1B=70hz
Geremia 2:713844a55c4e 98
Geremia 2:713844a55c4e 99 wr_cmd8(0xB6); // display function control, INTERESTING
Geremia 2:713844a55c4e 100 wr_data8(0x08); // AN 0A, was 0A
Geremia 2:713844a55c4e 101 wr_data8(0x82); // AN A2
Geremia 2:713844a55c4e 102 wr_data8(0x27); // AN not present
Geremia 2:713844a55c4e 103 // wr_data8(0x00); // was present
Geremia 2:713844a55c4e 104
Geremia 2:713844a55c4e 105 wr_cmd8(0xF2); // Gamma Function Disable
Geremia 2:713844a55c4e 106 wr_data8(0x00); // AN 00, was 08
Geremia 2:713844a55c4e 107
Geremia 2:713844a55c4e 108 wr_cmd8(0x26);
Geremia 2:713844a55c4e 109 wr_data8(0x01); // gamma set for curve 01/2/04/08
Geremia 2:713844a55c4e 110
Geremia 2:713844a55c4e 111 wr_cmd8(0xE0); // positive gamma correction
Geremia 2:713844a55c4e 112 wr_data8(0x0F);
Geremia 2:713844a55c4e 113 wr_data8(0x31);
Geremia 2:713844a55c4e 114 wr_data8(0x2B);
Geremia 2:713844a55c4e 115 wr_data8(0x0C);
Geremia 2:713844a55c4e 116 wr_data8(0x0E);
Geremia 2:713844a55c4e 117 wr_data8(0x08);
Geremia 2:713844a55c4e 118 wr_data8(0x4E);
Geremia 2:713844a55c4e 119 wr_data8(0xF1);
Geremia 2:713844a55c4e 120 wr_data8(0x37);
Geremia 2:713844a55c4e 121 wr_data8(0x07);
Geremia 2:713844a55c4e 122 wr_data8(0x10);
Geremia 2:713844a55c4e 123 wr_data8(0x03);
Geremia 2:713844a55c4e 124 wr_data8(0x0E);
Geremia 2:713844a55c4e 125 wr_data8(0x09);
Geremia 2:713844a55c4e 126 wr_data8(0x00);
Geremia 2:713844a55c4e 127
Geremia 2:713844a55c4e 128 wr_cmd8(0xE1); // negativ gamma correction
Geremia 2:713844a55c4e 129 wr_data8(0x00);
Geremia 2:713844a55c4e 130 wr_data8(0x0E);
Geremia 2:713844a55c4e 131 wr_data8(0x14);
Geremia 2:713844a55c4e 132 wr_data8(0x03);
Geremia 2:713844a55c4e 133 wr_data8(0x11);
Geremia 2:713844a55c4e 134 wr_data8(0x07);
Geremia 2:713844a55c4e 135 wr_data8(0x31);
Geremia 2:713844a55c4e 136 wr_data8(0xC1);
Geremia 2:713844a55c4e 137 wr_data8(0x48);
Geremia 2:713844a55c4e 138 wr_data8(0x08);
Geremia 2:713844a55c4e 139 wr_data8(0x0F);
Geremia 2:713844a55c4e 140 wr_data8(0x0C);
Geremia 2:713844a55c4e 141 wr_data8(0x31);
Geremia 2:713844a55c4e 142 wr_data8(0x36);
Geremia 2:713844a55c4e 143 wr_data8(0x0F);
Geremia 2:713844a55c4e 144
Geremia 2:713844a55c4e 145 //wr_cmd8(0x34); // tearing effect off
Geremia 2:713844a55c4e 146
Geremia 2:713844a55c4e 147 //wr_cmd8(0x35); // tearing effect on
Geremia 2:713844a55c4e 148
Geremia 2:713844a55c4e 149 // wr_cmd8(0xB7); // ENTRY_MODE_SET
Geremia 2:713844a55c4e 150 // wr_data8(0x07);
Geremia 4:12ba0ecc2c1f 151
Geremia 4:12ba0ecc2c1f 152 wr_cmd8(0x36); // MEMORY_ACCESS_CONTROL (orientation stuff)
Geremia 4:12ba0ecc2c1f 153 wr_data8(0x48);
Geremia 4:12ba0ecc2c1f 154
Geremia 4:12ba0ecc2c1f 155 wr_cmd8(0x3A); // COLMOD_PIXEL_FORMAT_SET
Geremia 4:12ba0ecc2c1f 156 wr_data8(0x55); // 16 bit pixel
Geremia 4:12ba0ecc2c1f 157
Geremia 4:12ba0ecc2c1f 158 wr_cmd8(0x13); // Nomal Displaymode
Geremia 4:12ba0ecc2c1f 159
Geremia 2:713844a55c4e 160 wr_cmd8(0x11); // sleep out
Geremia 2:713844a55c4e 161 wait_ms(150);
Geremia 2:713844a55c4e 162
Geremia 2:713844a55c4e 163 wr_cmd8(0x29); // display on
Geremia 2:713844a55c4e 164 wait_ms(150);
Geremia 2:713844a55c4e 165
Geremia 2:713844a55c4e 166 }