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/
Display/TFT.cpp
- Committer:
- Geremia
- Date:
- 2015-02-14
- Revision:
- 3:48f3282c2be8
- Parent:
- 2:713844a55c4e
- Child:
- 4:12ba0ecc2c1f
File content as of revision 3:48f3282c2be8:
/* mbed library for 240*320 pixel display TFT based on ILI9341 LCD Controller * Copyright (c) 2013 Peter Drescher - DC2PD * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ #include "TFT.h" //#include "mbed_debug.h" #define SWAP(a, b) { a ^= b; b ^= a; a ^= b; } TFT::TFT(proto_t displayproto, PortName port, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD, const int lcdsize_x, const int lcdsize_y, const char *name) : GraphicsDisplay(name), LCDSIZE_X(lcdsize_x), LCDSIZE_Y(lcdsize_y) { if(displayproto==PAR_8) proto = new PAR8(port, CS, reset, DC, WR, RD); useNOP=false; set_orientation(0); foreground(White); background(Black); set_auto_up(false); //we don't have framebuffer mipistd=false; // cls(); // locate(0,0); } TFT::TFT(proto_t displayproto, int Hz, PinName mosi, PinName miso, PinName sclk, PinName CS, PinName reset, PinName DC, const int lcdsize_x, const int lcdsize_y, const char *name) : GraphicsDisplay(name), LCDSIZE_X(lcdsize_x), LCDSIZE_Y(lcdsize_y) { if(displayproto==SPI_8) { proto = new SPI8(Hz, mosi, miso, sclk, CS, reset, DC); useNOP=false; } else if(displayproto==SPI_16) { proto = new SPI16(Hz, mosi, miso, sclk, CS, reset, DC); useNOP=true; } // cls(); set_orientation(0); foreground(White); background(Black); set_auto_up(false); mipistd=false; // locate(0,0); } void TFT::wr_cmd8(unsigned char cmd) { if(useNOP) proto->wr_cmd16(cmd); // 0x0000|cmd, 00 is NOP cmd for TFT else proto->wr_cmd8(cmd); } void TFT::wr_data8(unsigned char data) { proto->wr_data8(data); } void TFT::wr_data8(unsigned char data, unsigned int count) { proto->wr_data8(data, count); } void TFT::wr_data8buf(unsigned char* data, unsigned int lenght) { proto->wr_data8buf(data, lenght); } void TFT::wr_cmd16(unsigned short cmd) { proto->wr_cmd16(cmd); } void TFT::wr_data16(unsigned short data) { proto->wr_data16(data); } void TFT::wr_data16(unsigned short data, unsigned int count) { proto->wr_data16(data, count); } void TFT::wr_data16buf(unsigned short* data, unsigned int lenght) { proto->wr_data16buf(data, lenght); } void TFT::hw_reset() { proto->hw_reset(); } void TFT::BusEnable(bool enable) { proto->BusEnable(enable); } // color TFT can rotate in hw (swap raw<->columns) for landscape views void TFT::set_orientation(int o) { orientation = o; wr_cmd8(0x36); switch (orientation) { case 0:// default, portrait view 0° if(mipistd) wr_data8(0x0A); // this is in real a vertical flip enabled, seems most displays are vertical flipped else wr_data8(0x48); //for some other ILIxxxx set_width(LCDSIZE_X); set_height(LCDSIZE_Y); break; case 1:// landscape view +90° if(mipistd) wr_data8(0x28); else wr_data8(0x29);//for some other ILIxxxx set_width(LCDSIZE_Y); set_height(LCDSIZE_X); break; case 2:// portrait view +180° if(mipistd) wr_data8(0x09); else wr_data8(0x99);//for some other ILIxxxx set_width(LCDSIZE_X); set_height(LCDSIZE_Y); break; case 3:// landscape view -90° if(mipistd) wr_data8(0x2B); else wr_data8(0xF8);//for some other ILIxxxx set_width(LCDSIZE_Y); set_height(LCDSIZE_X); break; } } // TFT have both column and raw autoincrement inside a window, with internal counters void TFT::window(int x, int y, int w, int h) { //ili9486 does not like truncated 2A/2B cmds, at least in par mode //setting only start column/page would speedup, but needs a windowmax() before, maybe implement later //fixme for PAR_16: // cmd 2A/2B expects 8bit parameters wr_cmd8(0x2A); wr_data16(x); //start column wr_data16(x+w-1);//end column wr_cmd8(0x2B); wr_data16(y); //start page wr_data16(y+h-1);//end page wr_cmd8(0x2C); //write mem, just send pixels color next } //for TFT, just send data, position counters are in hw void TFT::window_pushpixel(unsigned short color) { proto->wr_data16(color); } void TFT::window_pushpixel(unsigned short color, unsigned int count) { proto->wr_data16(color, count); } void TFT::window_pushpixelbuf(unsigned short* color, unsigned int lenght) { proto->wr_data16buf(color, lenght); } void TFT::pixel(int x, int y, unsigned short color) { window(x,y,1,1); wr_data16(color); // 2C expects 16bit parameters //proto->wr_data16(color); } void TFT::cls (void) { WindowMax(); // wr_data16(_background,pixels); wr_data16(0,LCDSIZE_X*LCDSIZE_Y); //proto->wr_data16(_background,pixels); }