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/TFT_MIPI.cpp@7:bb0383b91104, 2015-02-17 (annotated)

Committer:
Geremia
Date:
Tue Feb 17 11:02:06 2015 +0000
Revision:
7:bb0383b91104
Parent:
4:12ba0ecc2c1f
Child:
9:1749ae993cfe
TFT: added get deviceID, scroll functions

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 #include "Protocols.h"
Geremia 4:12ba0ecc2c1f 6 #include "TFT_MIPI.h"
Geremia 4:12ba0ecc2c1f 7
Geremia 4:12ba0ecc2c1f 8 //////////////////////////////////////////////////////////////////////////////////
Geremia 4:12ba0ecc2c1f 9 // display settings ///////////////////////////////////////////////////////
Geremia 4:12ba0ecc2c1f 10 /////////////////////////////////////////////////////////////////////////
Geremia 4:12ba0ecc2c1f 11
Geremia 4:12ba0ecc2c1f 12 #define LCDSIZE_X 320 // display X pixels, TFTs are usually portrait view
Geremia 4:12ba0ecc2c1f 13 #define LCDSIZE_Y 480 // display Y pixels
Geremia 4:12ba0ecc2c1f 14
Geremia 4:12ba0ecc2c1f 15
Geremia 4:12ba0ecc2c1f 16
Geremia 4:12ba0ecc2c1f 17 TFT_MIPI::TFT_MIPI(proto_t displayproto, PortName port, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD, const char *name)
Geremia 4:12ba0ecc2c1f 18 : TFT(displayproto, port, CS, reset, DC, WR, RD, LCDSIZE_X, LCDSIZE_Y, name)
Geremia 4:12ba0ecc2c1f 19 {
Geremia 4:12ba0ecc2c1f 20 hw_reset();
Geremia 4:12ba0ecc2c1f 21 BusEnable(true);
Geremia 7:bb0383b91104 22 identify(); // will collect tftID, set mipistd flag
Geremia 4:12ba0ecc2c1f 23 init();
Geremia 7:bb0383b91104 24 // scrollbugfix=1; // when scrolling 1 line, the last line disappears, set to 1 to fix it, for ili9481 is set automatically in identify()
Geremia 4:12ba0ecc2c1f 25 set_orientation(0);
Geremia 4:12ba0ecc2c1f 26 cls();
Geremia 4:12ba0ecc2c1f 27 locate(0,0);
Geremia 4:12ba0ecc2c1f 28 }
Geremia 4:12ba0ecc2c1f 29 TFT_MIPI::TFT_MIPI(proto_t displayproto, int Hz, PinName mosi, PinName miso, PinName sclk, PinName CS, PinName reset, PinName DC, const char *name)
Geremia 4:12ba0ecc2c1f 30 : TFT(displayproto, Hz, mosi, miso, sclk, CS, reset, DC, LCDSIZE_X, LCDSIZE_Y, name)
Geremia 4:12ba0ecc2c1f 31 {
Geremia 4:12ba0ecc2c1f 32 hw_reset(); //TFT class forwards to Protocol class
Geremia 4:12ba0ecc2c1f 33 BusEnable(true); //TFT class forwards to Protocol class
Geremia 7:bb0383b91104 34 identify(); // will collect tftID and set mipistd flag
Geremia 4:12ba0ecc2c1f 35 init(); // per display custom init cmd sequence, implemented here
Geremia 7:bb0383b91104 36 // scrollbugfix=1; // when scrolling 1 line, the last line disappears, set to 1 to fix it, for ili9481 is set automatically in identify()
Geremia 4:12ba0ecc2c1f 37 set_orientation(0); //TFT class does for MIPI standard and some ILIxxx
Geremia 4:12ba0ecc2c1f 38 cls();
Geremia 4:12ba0ecc2c1f 39 locate(0,0);
Geremia 4:12ba0ecc2c1f 40 }
Geremia 4:12ba0ecc2c1f 41 // reset and init the lcd controller
Geremia 4:12ba0ecc2c1f 42 void TFT_MIPI::init()
Geremia 4:12ba0ecc2c1f 43 {
Geremia 4:12ba0ecc2c1f 44 /* Start Initial Sequence ----------------------------------------------------*/
Geremia 4:12ba0ecc2c1f 45
Geremia 4:12ba0ecc2c1f 46 /* Start Initial Sequence ----------------------------------------------------*/
Geremia 4:12ba0ecc2c1f 47 wr_cmd8(0xD0); // POWER SETTING
Geremia 4:12ba0ecc2c1f 48 wr_data8(0x07);
Geremia 4:12ba0ecc2c1f 49 wr_data8(0x42);
Geremia 4:12ba0ecc2c1f 50 wr_data8(0x18);
Geremia 4:12ba0ecc2c1f 51
Geremia 4:12ba0ecc2c1f 52 wr_cmd8(0xD1); // VCOM control
Geremia 4:12ba0ecc2c1f 53 wr_data8(0x00);
Geremia 4:12ba0ecc2c1f 54 wr_data8(0x07);
Geremia 4:12ba0ecc2c1f 55 wr_data8(0x10);
Geremia 4:12ba0ecc2c1f 56
Geremia 4:12ba0ecc2c1f 57 wr_cmd8(0xD2); // Power_Setting for Normal Mode
Geremia 4:12ba0ecc2c1f 58 wr_data8(0x01); // LCD power supply current
Geremia 4:12ba0ecc2c1f 59 wr_data8(0x02); // charge pumps
Geremia 4:12ba0ecc2c1f 60
Geremia 4:12ba0ecc2c1f 61 wr_cmd8(0xC0); // Panel Driving Setting
Geremia 4:12ba0ecc2c1f 62 wr_data8(0x10); // 10 orig
Geremia 4:12ba0ecc2c1f 63 wr_data8(0x3B); //number of lines+1 *8
Geremia 4:12ba0ecc2c1f 64 wr_data8(0x00);
Geremia 4:12ba0ecc2c1f 65 wr_data8(0x02);
Geremia 4:12ba0ecc2c1f 66 wr_data8(0x11);
Geremia 4:12ba0ecc2c1f 67
Geremia 4:12ba0ecc2c1f 68 // C1 missing? Display_Timing_Setting for Normal Mode
Geremia 4:12ba0ecc2c1f 69
Geremia 4:12ba0ecc2c1f 70 //renesas does not have this
Geremia 4:12ba0ecc2c1f 71 // wr_cmd8(0xC5); // Frame Rate and Inversion Control
Geremia 4:12ba0ecc2c1f 72 // wr_data8(0x03); // 72hz, datashet tells default 02=85hz
Geremia 4:12ba0ecc2c1f 73
Geremia 4:12ba0ecc2c1f 74 wr_cmd8(0xC8); // Gamma settings
Geremia 4:12ba0ecc2c1f 75 wr_data8(0x00);
Geremia 4:12ba0ecc2c1f 76 wr_data8(0x32);
Geremia 4:12ba0ecc2c1f 77 wr_data8(0x36);
Geremia 4:12ba0ecc2c1f 78 wr_data8(0x45);
Geremia 4:12ba0ecc2c1f 79 wr_data8(0x06);
Geremia 4:12ba0ecc2c1f 80 wr_data8(0x16);
Geremia 4:12ba0ecc2c1f 81 wr_data8(0x37);
Geremia 4:12ba0ecc2c1f 82 wr_data8(0x75);
Geremia 4:12ba0ecc2c1f 83 wr_data8(0x77);
Geremia 4:12ba0ecc2c1f 84 wr_data8(0x54);
Geremia 4:12ba0ecc2c1f 85 wr_data8(0x0C);
Geremia 4:12ba0ecc2c1f 86 wr_data8(0x00);
Geremia 4:12ba0ecc2c1f 87
Geremia 4:12ba0ecc2c1f 88
Geremia 4:12ba0ecc2c1f 89
Geremia 4:12ba0ecc2c1f 90 wr_cmd8(0x36); // MEMORY_ACCESS_CONTROL (orientation stuff)
Geremia 4:12ba0ecc2c1f 91 wr_data8(0x0A); // 0A as per chinese example (vertical flipped)
Geremia 4:12ba0ecc2c1f 92
Geremia 4:12ba0ecc2c1f 93 wr_cmd8(0x3A); // COLMOD_PIXEL_FORMAT_SET, not present in AN
Geremia 4:12ba0ecc2c1f 94 wr_data8(0x55); // 16 bit pixel
Geremia 4:12ba0ecc2c1f 95
Geremia 4:12ba0ecc2c1f 96 wr_cmd8(0x13); // Nomal Displaymode
Geremia 4:12ba0ecc2c1f 97
Geremia 4:12ba0ecc2c1f 98 wr_cmd8(0x11); // sleep out
Geremia 4:12ba0ecc2c1f 99 wait_ms(150);
Geremia 4:12ba0ecc2c1f 100
Geremia 4:12ba0ecc2c1f 101 wr_cmd8(0x29); // display on
Geremia 4:12ba0ecc2c1f 102 wait_ms(150);
Geremia 4:12ba0ecc2c1f 103
Geremia 4:12ba0ecc2c1f 104 }