UniGraphic-Fork for ST7920-LCD-controller and SH1106. Tested with 128x64 LCD with SPI and 128x64-OLED with IIC
Dependents: UniGraphic-St7920-Test AfficheurUTILECO
Fork of UniGraphic by
Fork of the UniGraphic-Library for monochrome LCDs with ST7920 controller and 128x64-IIC-OLED-Display with SH1106-Controller
Had to adapt LCD for following reasons:
- Give access to screenbuffer buffer[] to parent class
- pixel() and pixel_read() as they are hardware-dependent
- added reset-pin to IIC-Interface
GraphicDisplay:: sends buffer to LCD when auto_update is set to true.
Testprogram for ST7920 can be found here:
https://developer.mbed.org/users/charly/code/UniGraphic-St7920-Test/
Diff: Inits/ILI9327.cpp
- Revision:
- 29:866213bb9bf0
diff -r 2b562717a864 -r 866213bb9bf0 Inits/ILI9327.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Inits/ILI9327.cpp Sat Nov 28 18:37:19 2015 +0000 @@ -0,0 +1,153 @@ + /* 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 "ILI9327.h" + +////////////////////////////////////////////////////////////////////////////////// +// display settings /////////////////////////////////////////////////////// +///////////////////////////////////////////////////////////////////////// + +// put in constructor +//#define LCDSIZE_X 240 // display X pixels, TFTs are usually portrait view +//#define LCDSIZE_Y 400 // display Y pixels + + + +ILI9327::ILI9327(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, set mipistd flag + init(); + auto_gram_read_format();// try to get read gram pixel format, could be 16bit or 18bit, RGB or BGR. Will set flags accordingly +// scrollbugfix=1; // when scrolling 1 line, the last line disappears, set to 1 to fix it, for ili9481 is set automatically in identify() + set_orientation(0); + FastWindow(true); // most but not all controllers support this, even if datasheet tells they should. Give a try + cls(); + locate(0,0); +} +ILI9327::ILI9327(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, set mipistd flag + init(); + auto_gram_read_format();// try to get read gram pixel format, could be 16bit or 18bit, RGB or BGR. Will set flags accordingly +// scrollbugfix=1; // when scrolling 1 line, the last line disappears, set to 1 to fix it, for ili9481 is set automatically in identify() + set_orientation(0); + FastWindow(true); // most but not all controllers support this, even if datasheet tells they should. Give a try + cls(); + locate(0,0); +} +ILI9327::ILI9327(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 + // scrollbugfix=1; // when scrolling 1 line, the last line disappears, set to 1 to fix it, for ili9481 is set automatically in identify() + 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. Give a try + cls(); + locate(0,0); +} +// read display ID +void ILI9327::identify() +{ + // ILI9327 custom cmd + tftID=rd_reg_data32(0xEF); + mipistd=true; +} +// reset and init the lcd controller +void ILI9327::init() +{ + wr_cmd8(0x11); + wait_ms(150); + + wr_cmd8(0xF3); //Set EQ + wr_data8(0x08); + wr_data8(0x20); + wr_data8(0x20); + wr_data8(0x08); + + wr_cmd8(0xE7); + wr_data8(0x60); //OPON + + wr_cmd8(0xD1); // Set VCOM + wr_data8(0x00); + wr_data8(0x5D); + wr_data8(0x15); + + wr_cmd8(0xD0); //Set power related setting + wr_data8(0x07); + wr_data8(0x02); //VGH:15V,VGL:-7.16V (BOE LCD: VGH:12~18V,VGL:-6~10V) + wr_data8(0x8B); + wr_data8(0x03); + wr_data8(0xD4); + + wr_cmd8(0x3A); // Set_pixel_format + wr_data8(0x55); //0x55:16bit/pixel,65k;0x66:18bit/pixel,262k; + + wr_cmd8(0x36); //Set_address_mode + wr_data8(0x38); + + wr_cmd8(0x20); //Exit_invert_mode + + wr_cmd8(0xC1); //Set Normal/Partial mode display timing + wr_data8(0x10); + wr_data8(0x1A); + wr_data8(0x02); + wr_data8(0x02); + + wr_cmd8(0xC0); //Set display related setting + wr_data8(0x10); + wr_data8(0x31); + wr_data8(0x00); + wr_data8(0x00); + wr_data8(0x01); + wr_data8(0x02); + + wr_cmd8(0xC4); //Set waveform timing + wr_data8(0x01); + + wr_cmd8(0xC5); //Set oscillator + wr_data8(0x04); //72Hz + wr_data8(0x01); + + wr_cmd8(0xD2); //Set power for normal mode + wr_data8(0x01); + wr_data8(0x44); + + wr_cmd8(0xC8); //Set gamma + wr_data8(0x00); + wr_data8(0x77); + wr_data8(0x77); + wr_data8(0x00); + wr_data8(0x04); + wr_data8(0x00); + wr_data8(0x00); + wr_data8(0x00); + wr_data8(0x77); + wr_data8(0x00); + wr_data8(0x00); + wr_data8(0x08); + wr_data8(0x00); + wr_data8(0x00); + wr_data8(0x00); + + wr_cmd8(0xCA); //Set DGC LUT + wr_data8(0x00); + + wr_cmd8(0xEA); //3-Gamma Function Control + wr_data8(0x80); // enable + + wr_cmd8(0x29); // Set_display_on + wait_ms(150); + +} \ No newline at end of file