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/* mbed PCD8544 - Graphic Library for driving monochrome displays based on PCD8544
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* used in Nokia 3310, 3315, 3330, 3350, 3410, 3210, 5110, 5120, 5130, 5160, 6110, 6150
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*
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* Copyright (c) 2011, Wim De Roeve
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* partial port of the code found on http://serdisplib.sourceforge.net/ser/pcd8544.html#links
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* and by Petras Saduikis <petras@petras.co.uk>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef PCD8544LCD_H
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#define PCD8544LCD_H
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#include "mbed.h"
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/* Number of pixels on the LCD */
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#define LCD_X_RES 84
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#define LCD_Y_RES 48
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#define LCD_BANKS (LCD_Y_RES / 8)
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#define LCD_CACHE_SIZE ((LCD_X_RES * LCD_Y_RES) / 8)
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#define MAX_ADR_X (LCD_X_RES)-1
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#define MAX_ADR_Y LCD_BANKS-1
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#define HIGH 1
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#define LOW 0
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#define TRUE 1
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#define FALSE 0
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/* Display control command */
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#define EXTENDEDSET 0x21
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#define STANDARDSET 0x20
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#define DISPLAYOFF 0x08 // switch off display
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#define ALL_SEG_ON 0x09 // switch on display and set to all pixels on
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#define NORMAL_MODE 0x0C // NOREVERSE
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#define INVERSE_MODE 0x0D // REVERSE
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#define SET_ADDRES_X 0x80
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#define SET_ADDRES_Y 0x40
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typedef uint8_t BYTE;
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typedef enum {
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PIXEL_OFF = 0,
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PIXEL_ON = 1,
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PIXEL_XOR = 2
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}ePixelMode;
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typedef enum {
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FILL_OFF = 0,
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FILL_ON = 1
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}eFillMode;
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typedef enum {
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RASTER_OFF = 0,
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RASTER_ON = 1
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}eRasterMode;
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typedef enum {
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VERYSMALLFONT = 0, //3x5
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TINYFONT = 1, //5x7
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SMALLFONT = 2, //6x8
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NORMALFONT = 3, //8x8
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BIGFONT = 4, //8x12�
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TIMENUMBERFONT= 5, //16x20
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BIGNUMBERFONT= 6
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}eFonts;
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enum eDisplayMode {NORMAL, HIGHLIGHT};
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class PCD8544LCD {
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/* PCD8544 from Philips Semiconductors is
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48 x 84 pixels monochrome matrix LCD controller/driver
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The PCD8544 has a 504 byte memory with NO read function.
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Each bit is a pixel
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You can only write 1 byte at a time in vertical or horizontal mode.
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There is no read functionality with the controller.
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Caching a copy of the LCD-memory is the only solution if we want
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to set one pixel at a time.
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*/
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public:
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PCD8544LCD(PinName mosi, PinName miso, PinName sclk,
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PinName cs, PinName dc, PinName reset);
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/** init()
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*
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* Initialise the device.
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* @param PinName SPI mosi
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* @param PinName SPI miso
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* @param PinName SPI sclk
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* @param PinName DigitalOut cs
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* @param PinName DigitalOut dc
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* @param PinName DigitalOut reset
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*/
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void init();
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/** cls()
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* clears the cached copy of the screen
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* and the screen itself
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*/
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void cls();
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/** update()
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* copies the cached memory to the screen
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* use this to update the screen after
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* - drawBitmap
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*/
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void update();
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/** close()
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* screen display OFF
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*/
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void close();
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/** locate(x,y)
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* sets the cursor on position x,y
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*/
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void locate (BYTE x0, BYTE y0);
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void chooseFont(eFonts font);
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void writeString (BYTE x0, BYTE y0, char* string, eFonts font, eDisplayMode mode, BYTE update);
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void writeChar (BYTE x0, BYTE y0, BYTE ch, eFonts font,eDisplayMode mode, BYTE update);
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/** drawBitmap(x,y,bitmap,xsize,ysize)
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* draw a monochrome bitmap on position x,y
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* with size xsize,ysize
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*/
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void drawBitmap (BYTE x0, BYTE y0, BYTE* bitmap, BYTE bmpXSize, BYTE bmpYSize, BYTE update);
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void drawpixel (BYTE x0, BYTE y0, ePixelMode pmode, BYTE update);
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void drawline (BYTE x0, BYTE y0, BYTE x1,BYTE y1, ePixelMode pmode, BYTE update);
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void drawcircle (BYTE x0, BYTE y0, BYTE radius, ePixelMode pmode, BYTE update);
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void drawrectangle (BYTE x0, BYTE y0, BYTE x1,BYTE y1, eFillMode fill, ePixelMode pmode, BYTE update);
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void drawprogressbar(BYTE x0, BYTE y0, BYTE w, BYTE h, BYTE percentage, BYTE update);
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void drawchart (BYTE x0, BYTE y0, BYTE w, BYTE h, BYTE unitx, BYTE unity,
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eRasterMode rmode,signed char * val, int start, int count);
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private:
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SPI _spi;
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DigitalOut _cs; // chip select
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DigitalOut _dc; // data / command
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DigitalOut _reset; // reset
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void writeCmd(BYTE data);
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void writeData(BYTE data);
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BYTE _LcdCache[ LCD_CACHE_SIZE ]; // local LCD buffer
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int _LcdCacheIdx;
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int _LoMark;
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int _HiMark;
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BYTE _font_width;
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BYTE _font_height;
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BYTE _font_start;
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BYTE _font_end;
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unsigned char* _pFont;
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};
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#endif |
Wim De Roeve