st7565LCD.h

00001 /*
00002 $Id:$
00003 
00004 ST7565 LCD library!
00005 
00006 Copyright (C) 2010 Limor Fried, Adafruit Industries
00007 
00008 This library is free software; you can redistribute it and/or
00009 modify it under the terms of the GNU Lesser General Public
00010 License as published by the Free Software Foundation; either
00011 version 2.1 of the License, or (at your option) any later version.
00012 
00013 This library is distributed in the hope that it will be useful,
00014 but WITHOUT ANY WARRANTY; without even the implied warranty of
00015 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00016 Lesser General Public License for more details.
00017 
00018 You should have received a copy of the GNU Lesser General Public
00019 License along with this library; if not, write to the Free Software
00020 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
00021 
00022 // some of this code was written by <cstone@pobox.com> originally; it is in the public domain.
00023 */
00024 
00025 
00026 #ifndef _st7565LCD_H_
00027 #define _st7565LCD_H_
00028 
00029 #include "mbed.h"
00030 
00031 #define swap(a, b) { uint8_t t = a; a = b; b = t; }
00032 
00033 #define BLACK 1
00034 #define WHITE 0
00035 
00036 #define LCDWIDTH 128
00037 #define LCDHEIGHT 64
00038 
00039 #define INITIAL_CONTRAST 0x18
00040 
00041 #define CMD_DISPLAY_OFF   0xAE
00042 #define CMD_DISPLAY_ON    0xAF
00043 
00044 #define CMD_SET_DISP_START_LINE  0x40
00045 #define CMD_SET_PAGE  0xB0
00046 
00047 #define CMD_SET_COLUMN_UPPER  0x10
00048 #define CMD_SET_COLUMN_LOWER  0x00
00049 
00050 #define CMD_SET_ADC_NORMAL  0xA0
00051 #define CMD_SET_ADC_REVERSE 0xA1
00052 
00053 #define CMD_SET_DISP_NORMAL 0xA6
00054 #define CMD_SET_DISP_REVERSE 0xA7
00055 
00056 #define CMD_SET_ALLPTS_NORMAL 0xA4
00057 #define CMD_SET_ALLPTS_ON  0xA5
00058 #define CMD_SET_BIAS_9 0xA2 
00059 #define CMD_SET_BIAS_7 0xA3
00060 
00061 #define CMD_RMW  0xE0
00062 #define CMD_RMW_CLEAR 0xEE
00063 #define CMD_INTERNAL_RESET  0xE2
00064 #define CMD_SET_COM_NORMAL  0xC0
00065 #define CMD_SET_COM_REVERSE  0xC8
00066 #define CMD_SET_POWER_CONTROL  0x28
00067 #define CMD_SET_RESISTOR_RATIO  0x20
00068 #define CMD_SET_VOLUME_FIRST  0x81
00069 #define  CMD_SET_VOLUME_SECOND  0x00
00070 #define CMD_SET_STATIC_OFF  0xAC
00071 #define  CMD_SET_STATIC_ON  0xAD
00072 #define CMD_SET_STATIC_REG  0x0
00073 #define CMD_SET_BOOSTER_FIRST  0xF8
00074 #define CMD_SET_BOOSTER_234  0
00075 #define  CMD_SET_BOOSTER_5  1
00076 #define  CMD_SET_BOOSTER_6  3
00077 #define CMD_NOP  0xE3
00078 #define CMD_TEST  0xF0
00079 
00080 class ST7565 {
00081      
00082  private:
00083   SPI _spi;
00084   DigitalOut _cs;
00085   DigitalOut _rst;
00086   DigitalOut _a0;
00087   void spiwrite(uint8_t c);
00088   void my_setpixel(uint8_t x, uint8_t y, uint8_t color);
00089 
00090   //uint8_t buffer[128*64/8]; 
00091  public:
00092   ST7565(PinName mosi, PinName sclk, PinName cs, PinName rst, PinName a0);
00093   ~ST7565() {};
00094   void st7565_init(void);
00095   void begin(uint8_t contrast);
00096   void st7565_command(uint8_t c);
00097   void st7565_data(uint8_t c);
00098   void st7565_set_brightness(uint8_t val);
00099   void clear_display(void);
00100   void clear();
00101   void display();
00102 
00103   void setpixel(uint8_t x, uint8_t y, uint8_t color);
00104   uint8_t getpixel(uint8_t x, uint8_t y);
00105   void fillcircle(uint8_t x0, uint8_t y0, uint8_t r, 
00106           uint8_t color);
00107   void drawcircle(uint8_t x0, uint8_t y0, uint8_t r, 
00108           uint8_t color);
00109   void drawrect(uint8_t x, uint8_t y, uint8_t w, uint8_t h, 
00110         uint8_t color);
00111   void fillrect(uint8_t x, uint8_t y, uint8_t w, uint8_t h, 
00112         uint8_t color);
00113   void drawline(uint8_t x0, uint8_t y0, uint8_t x1, uint8_t y1, 
00114         uint8_t color);
00115   void drawchar(uint8_t x, uint8_t line, char c);
00116   void drawstring(uint8_t x, uint8_t line, char *c);
00117   /*void drawbitmap(uint8_t x, uint8_t y, 
00118           const uint8_t *bitmap, uint8_t w, uint8_t h,
00119           uint8_t color);*/
00120   uint8_t _BV(uint8_t bit);
00121   uint8_t _nBV(uint8_t bit);
00122   
00123   void set_spi_frequency(int frequency);
00124 
00125 };
00126 
00127 #endif