Lcd.h

00001 /**
00002  ******************************************************************************
00003  *   @file     Lcd.c
00004  *   @brief    Header file for ST7565R LCD control.
00005  *   @author   ADI
00006  *   @date     March 2016
00007  *
00008  *******************************************************************************
00009  * Copyright 2015(c) Analog Devices, Inc.
00010  *
00011  * All rights reserved.
00012  *
00013  * Redistribution and use in source and binary forms, with or without modification,
00014  * are permitted provided that the following conditions are met:
00015  *  - Redistributions of source code must retain the above copyright
00016  *    notice, this list of conditions and the following disclaimer.
00017  *  - Redistributions in binary form must reproduce the above copyright
00018  *    notice, this list of conditions and the following disclaimer in
00019  *    the documentation and/or other materials provided with the
00020  *    distribution.
00021  *  - Neither the name of Analog Devices, Inc. nor the names of its
00022  *    contributors may be used to endorse or promote products derived
00023  *    from this software without specific prior written permission.
00024  *  - The use of this software may or may not infringe the patent rights
00025  *    of one or more patent holders.  This license does not release you
00026  *    from the requirement that you obtain separate licenses from these
00027  *    patent holders to use this software.
00028  *  - Use of the software either in source or binary form, must be run
00029  *    on or directly connected to an Analog Devices Inc. component.
00030  *
00031  * THIS SOFTWARE IS PROVIDED BY ANALOG DEVICES "AS IS" AND ANY EXPRESS OR IMPLIED
00032  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, NON-INFRINGEMENT, MERCHANTABILITY
00033  * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
00034  * IN NO EVENT SHALL ANALOG DEVICES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
00035  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
00036  * INTELLECTUAL PROPERTY RIGHTS, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
00037  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
00038  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
00039  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
00040  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00041  *
00042  *******************************************************************************
00043  **/
00044 #ifndef LCD_H_
00045 #define LCD_H_
00046 
00047 
00048 /******************************************************************************/
00049 /***************************** Include Files **********************************/
00050 /******************************************************************************/
00051 #include <stdio.h>
00052 #include "mbed.h"
00053 
00054 
00055 /**
00056  * @brief Lcd class
00057  */
00058 class Lcd
00059 {
00060 public:
00061 
00062     const static uint8_t pui8Rec8x8[8];
00063     const static uint8_t pui8RecInv8x8[8];
00064     const static uint8_t pui8font5x7[96][5]; ///< Symbol matrix structure: Font (8x14)
00065 
00066     Lcd(PinName rst = D3, PinName a0 = D5, PinName bl = D8, PinName cs = D6,
00067         PinName MOSI = SPI_MOSI, PinName MISO = SPI_MISO, PinName SCK =
00068             SPI_SCK);
00069     void init(void);
00070     void display_string(uint8_t ui8row, uint8_t ui8col, int8_t *pi8str);
00071     void display_symbol(uint8_t ui8row, uint8_t ui8col, uint8_t ui8width,
00072                         const uint8_t *pui8symbol);
00073     void fill_pages(uint8_t ui8start, uint8_t ui8num, uint8_t ui8Data);
00074     void set_line(uint8_t ui8line);
00075     void set_cursor(uint8_t ui8PA, uint8_t ui8CA);
00076     void bl_enable();
00077     void bl_disable();
00078 
00079     void write_cmd(uint8_t cmd);
00080     void write_data(uint8_t data);
00081 
00082 
00083     typedef enum {
00084         CMD_DISPLAY_OFF = 0xAE,
00085         CMD_DISPLAY_ON = 0xAF,
00086         CMD_SET_DISP_START_LINE = 0x40,
00087         CMD_SET_PAGE = 0xB0,
00088         CMD_SET_COLUMN_UPPER = 0x10,
00089         CMD_SET_COLUMN_LOWER = 0x00,
00090         CMD_SET_ADC_NORMAL = 0xA0,
00091         CMD_SET_ADC_REVERSE = 0xA1,
00092         CMD_SET_DISP_NORMAL = 0xA6,
00093         CMD_SET_DISP_REVERSE = 0xA7,
00094         CMD_SET_ALLPTS_NORMAL = 0xA4,
00095         CMD_SET_ALLPTS_ON = 0xA5,
00096         CMD_SET_BIAS_9 = 0xA2,
00097         CMD_SET_BIAS_7 = 0xA3,
00098         CMD_RMW = 0xE0,
00099         CMD_RMW_CLEAR = 0xEE,
00100         CMD_INTERNAL_RESET = 0xE2,
00101         CMD_SET_COM_NORMAL = 0xC0,
00102         CMD_SET_COM_REVERSE = 0xC8,
00103         CMD_SET_POWER_CONTROL = 0x28,
00104         CMD_SET_RESISTOR_RATIO = 0x20,
00105         CMD_SET_VOLUME_FIRST = 0x81,
00106         CMD_SET_VOLUME_SECOND = 0,
00107         CMD_SET_STATIC_OFF = 0xAC,
00108         CMD_SET_STATIC_ON = 0xAD,
00109         CMD_SET_STATIC_REG = 0x0,
00110         CMD_SET_BOOSTER_FIRST = 0xF8,
00111         CMD_SET_BOOSTER_234 = 0,
00112         CMD_SET_BOOSTER_5 = 1,
00113         CMD_SET_BOOSTER_6 = 3,
00114         CMD_NOP = 0xE3,
00115         CMD_TEST = 0xF0,
00116     } lcd_commands_t;
00117 
00118     static const uint8_t LCD_COLUMNS = 128u;
00119     static const uint8_t LCD_PAGES = 4u;
00120     static const uint8_t LCD_LINES = 64u;
00121     static const uint8_t UP_X = 112;
00122     static const uint8_t LEFT_X = 104;
00123     static const uint8_t RIGHT_X = 120;
00124     static const uint8_t DOWN_X = 112;
00125     static const uint8_t CENTER_X = 112;
00126     static const uint8_t ACC_LIMIT = 80;
00127     static const uint8_t FONT_Y_SIZE = 8; ///< Font size for Y
00128     static const uint8_t OFFS_ASCII = 32; ///< ASCII offset
00129 
00130     static const float ACC_TEMP_BIAS          =   350  ;       ///< Accelerometer temperature bias(in ADC codes) at 25 Deg C
00131     static const float ACC_TEMP_SENSITIVITY   =   0.065;       ///< Accelerometer temperature sensitivity  from datasheet (DegC per Code)
00132 
00133 private:
00134 
00135     DigitalOut rst, a0, bl, cs;
00136     SPI lcd_spi;
00137 
00138 
00139 
00140 };
00141 
00142 #endif /* LCD_H_ */