DogLCD.h

00001 #ifndef MBED_DOGLCD_H
00002 #define MBED_DOGLCD_H
00003 
00004 #include "AbstractLCD.h"
00005 
00006 /***********
00007  * Module for Electronic Assembly's DOGL128-6 display module
00008  * Should be compatible with other modules using ST7565 controller
00009  ***********/
00010  
00011 #define LCDWIDTH 128
00012 #define LCDHEIGHT 64
00013 #define LCDPAGES  (LCDHEIGHT+7)/8
00014 
00015 /*
00016 
00017  Each page is 8 lines, one byte per column
00018  
00019          Col0
00020         +---+--
00021         | 0 |
00022 Page 0  | 1 |
00023         | 2 |
00024         | 3 |
00025         | 4 |
00026         | 5 |
00027         | 6 |
00028         | 7 |
00029         +---+--
00030 */
00031 
00032 /*
00033   LCD interface class.
00034   Usage: 
00035     DogLCD dog(spi, pin_power, pin_cs, pin_a0, pin_reset);
00036     where spi is an instance of SPI class
00037 */
00038 
00039 class DogLCD: public AbstractLCD
00040 {
00041     SPI& _spi;
00042     DigitalOut _cs, _a0, _reset, _power;
00043     int _updating;
00044     void _send_commands(const unsigned char* buf, size_t size);
00045     void _send_data(const unsigned char* buf, size_t size);
00046     void _set_xy(int x, int y);
00047     unsigned char _framebuffer[LCDWIDTH*LCDPAGES];
00048 public:
00049     DogLCD(SPI& spi, PinName power, PinName cs, PinName a0, PinName reset):
00050     _spi(spi), _cs(cs), _a0(a0), _reset(reset), _power(power), _updating(0)
00051     {
00052     }
00053     // initialize and turn on the display
00054     void init();
00055     // send a 128x64 picture for the whole screen
00056     void send_pic(const unsigned char* data);
00057     // clear screen
00058     void clear_screen();
00059     // turn all pixels on
00060     void all_on(bool on = true);
00061     
00062     // AbstractLCD methods
00063     virtual int width()  {return LCDWIDTH;};
00064     virtual int height() {return LCDHEIGHT;};
00065     virtual void pixel(int x, int y, int colour);
00066     virtual void fill(int x, int y, int width, int height, int colour);
00067     virtual void beginupdate();
00068     virtual void endupdate();
00069 };
00070 
00071 #endif