display funciona!
Dependents: 2018_I2C_LCD_03 TBI_FIAT_FEEDFORWARD Ignition Can_between_NUCLEOS_LCD ... more
Fork of TextLCD by
TextLCD.h@23:d47f226efb24, 2014-04-02 (annotated)
- Committer:
- wim
- Date:
- Wed Apr 02 18:16:37 2014 +0000
- Revision:
- 23:d47f226efb24
- Parent:
- 22:35742ec80c24
- Child:
- 24:fb3399713710
Docs update
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
simon | 1:ac48b187213c | 1 | /* mbed TextLCD Library, for a 4-bit LCD based on HD44780 |
simon | 6:e4cb7ddee0d3 | 2 | * Copyright (c) 2007-2010, sford, http://mbed.org |
wim | 13:24506ba22480 | 3 | * 2013, v01: WH, Added LCD types, fixed LCD address issues, added Cursor and UDCs |
wim | 15:b70ebfffb258 | 4 | * 2013, v02: WH, Added I2C and SPI bus interfaces |
wim | 15:b70ebfffb258 | 5 | * 2013, v03: WH, Added support for LCD40x4 which uses 2 controllers |
wim | 17:652ab113bc2e | 6 | * 2013, v04: WH, Added support for Display On/Off, improved 4bit bootprocess |
wim | 18:bd65dc10f27f | 7 | * 2013, v05: WH, Added support for 8x2B, added some UDCs |
wim | 19:c747b9e2e7b8 | 8 | * 2013, v06: WH, Added support for devices that use internal DC/DC converters |
wim | 20:e0da005a777f | 9 | * 2013, v07: WH, Added support for backlight and include portdefinitions for LCD2004 Module from DFROBOT |
wim | 21:9eb628d9e164 | 10 | * 2014, v08: WH, Refactored in Base and Derived Classes to deal with mbed lib change regarding 'NC' defined DigitalOut pins |
simon | 1:ac48b187213c | 11 | * |
simon | 1:ac48b187213c | 12 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
simon | 1:ac48b187213c | 13 | * of this software and associated documentation files (the "Software"), to deal |
simon | 1:ac48b187213c | 14 | * in the Software without restriction, including without limitation the rights |
simon | 1:ac48b187213c | 15 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
simon | 1:ac48b187213c | 16 | * copies of the Software, and to permit persons to whom the Software is |
simon | 1:ac48b187213c | 17 | * furnished to do so, subject to the following conditions: |
simon | 2:227356c7d12c | 18 | * |
simon | 1:ac48b187213c | 19 | * The above copyright notice and this permission notice shall be included in |
simon | 1:ac48b187213c | 20 | * all copies or substantial portions of the Software. |
simon | 2:227356c7d12c | 21 | * |
simon | 1:ac48b187213c | 22 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
simon | 1:ac48b187213c | 23 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
simon | 1:ac48b187213c | 24 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
simon | 1:ac48b187213c | 25 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
simon | 1:ac48b187213c | 26 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
simon | 1:ac48b187213c | 27 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
simon | 1:ac48b187213c | 28 | * THE SOFTWARE. |
simon | 1:ac48b187213c | 29 | */ |
simon | 1:ac48b187213c | 30 | |
simon | 1:ac48b187213c | 31 | #ifndef MBED_TEXTLCD_H |
simon | 1:ac48b187213c | 32 | #define MBED_TEXTLCD_H |
simon | 1:ac48b187213c | 33 | |
simon | 1:ac48b187213c | 34 | #include "mbed.h" |
simon | 2:227356c7d12c | 35 | |
wim | 15:b70ebfffb258 | 36 | |
simon | 5:a53b3e2d6f1e | 37 | /** A TextLCD interface for driving 4-bit HD44780-based LCDs |
simon | 2:227356c7d12c | 38 | * |
wim | 16:c276b75e6585 | 39 | * Currently supports 8x1, 8x2, 12x4, 16x1, 16x2, 16x4, 20x2, 20x4, 24x2, 24x4, 40x2 and 40x4 panels |
wim | 22:35742ec80c24 | 40 | * Interface options include direct mbed pins, I2C portexpander (PCF8474, PCF8574A) or SPI bus shiftregister (74595) |
wim | 19:c747b9e2e7b8 | 41 | * Supports some controllers that provide internal DC/DC converters for VLCD or VLED. |
simon | 2:227356c7d12c | 42 | * |
simon | 2:227356c7d12c | 43 | * @code |
simon | 2:227356c7d12c | 44 | * #include "mbed.h" |
simon | 2:227356c7d12c | 45 | * #include "TextLCD.h" |
simon | 5:a53b3e2d6f1e | 46 | * |
wim | 16:c276b75e6585 | 47 | * // I2C Communication |
wim | 16:c276b75e6585 | 48 | * I2C i2c_lcd(p28,p27); // SDA, SCL |
wim | 16:c276b75e6585 | 49 | * |
wim | 16:c276b75e6585 | 50 | * // SPI Communication |
wim | 16:c276b75e6585 | 51 | * SPI spi_lcd(p5, NC, p7); // MOSI, MISO, SCLK |
wim | 16:c276b75e6585 | 52 | * |
wim | 22:35742ec80c24 | 53 | * //TextLCD lcd(p15, p16, p17, p18, p19, p20); // RS, E, D4-D7, LCDType=LCD16x2, BL=NC, E2=NC, LCDTCtrl=HD44780 |
wim | 22:35742ec80c24 | 54 | * //TextLCD_SPI lcd(&spi_lcd, p8, TextLCD::LCD40x4); // SPI bus, CS pin, LCD Type |
wim | 22:35742ec80c24 | 55 | * TextLCD_I2C lcd(&i2c_lcd, 0x42, TextLCD::LCD20x4); // I2C bus, PCF8574 Slaveaddress, LCD Type |
wim | 21:9eb628d9e164 | 56 | * //TextLCD_I2C lcd(&i2c_lcd, 0x42, TextLCD::LCD16x2, TextLCD::WS0010); // I2C bus, PCF8574 Slaveaddress, LCD Type, Device Type |
simon | 5:a53b3e2d6f1e | 57 | * |
simon | 2:227356c7d12c | 58 | * int main() { |
wim | 16:c276b75e6585 | 59 | * lcd.printf("Hello World!\n"); |
simon | 2:227356c7d12c | 60 | * } |
simon | 2:227356c7d12c | 61 | * @endcode |
simon | 2:227356c7d12c | 62 | */ |
wim | 8:03116f75b66e | 63 | |
wim | 16:c276b75e6585 | 64 | //Pin Defines for I2C PCF8574 and SPI 74595 Bus interfaces |
wim | 13:24506ba22480 | 65 | //LCD and serial portexpanders should be wired accordingly |
wim | 20:e0da005a777f | 66 | // |
wim | 20:e0da005a777f | 67 | #if (1) |
wim | 20:e0da005a777f | 68 | //Definitions for hardware used by WH |
wim | 13:24506ba22480 | 69 | //Note: LCD RW pin must be connected to GND |
wim | 15:b70ebfffb258 | 70 | // E2 is used for LCD40x4 (second controller) |
wim | 13:24506ba22480 | 71 | // BL may be used for future expansion to control backlight |
wim | 15:b70ebfffb258 | 72 | #define D_LCD_PIN_D4 0 |
wim | 15:b70ebfffb258 | 73 | #define D_LCD_PIN_D5 1 |
wim | 15:b70ebfffb258 | 74 | #define D_LCD_PIN_D6 2 |
wim | 15:b70ebfffb258 | 75 | #define D_LCD_PIN_D7 3 |
wim | 15:b70ebfffb258 | 76 | #define D_LCD_PIN_RS 4 |
wim | 15:b70ebfffb258 | 77 | #define D_LCD_PIN_E 5 |
wim | 15:b70ebfffb258 | 78 | #define D_LCD_PIN_E2 6 |
wim | 15:b70ebfffb258 | 79 | #define D_LCD_PIN_BL 7 |
wim | 13:24506ba22480 | 80 | |
wim | 20:e0da005a777f | 81 | #define D_LCD_PIN_RW D_LCD_PIN_E2 |
wim | 20:e0da005a777f | 82 | |
wim | 20:e0da005a777f | 83 | #else |
wim | 20:e0da005a777f | 84 | |
wim | 20:e0da005a777f | 85 | //Definitions for LCD2004 Module from DFROBOT, See http://arduino-info.wikispaces.com/LCD-Blue-I2C |
wim | 20:e0da005a777f | 86 | //This hardware is different from earlier/different Arduino I2C LCD displays |
wim | 20:e0da005a777f | 87 | //Note: LCD RW pin must be kept LOW |
wim | 20:e0da005a777f | 88 | // E2 is not available on default Arduino hardware and does not support LCD40x4 (second controller) |
wim | 20:e0da005a777f | 89 | // BL is used to control backlight |
wim | 20:e0da005a777f | 90 | #define D_LCD_PIN_RS 0 |
wim | 20:e0da005a777f | 91 | #define D_LCD_PIN_RW 1 |
wim | 20:e0da005a777f | 92 | #define D_LCD_PIN_E 2 |
wim | 20:e0da005a777f | 93 | #define D_LCD_PIN_BL 3 |
wim | 20:e0da005a777f | 94 | #define D_LCD_PIN_D4 4 |
wim | 20:e0da005a777f | 95 | #define D_LCD_PIN_D5 5 |
wim | 20:e0da005a777f | 96 | #define D_LCD_PIN_D6 6 |
wim | 20:e0da005a777f | 97 | #define D_LCD_PIN_D7 7 |
wim | 20:e0da005a777f | 98 | |
wim | 20:e0da005a777f | 99 | #define D_LCD_PIN_E2 D_LCD_PIN_RW |
wim | 20:e0da005a777f | 100 | #endif |
wim | 13:24506ba22480 | 101 | |
wim | 13:24506ba22480 | 102 | //Bitpattern Defines for I2C PCF8574 and SPI 74595 Bus |
wim | 13:24506ba22480 | 103 | // |
wim | 13:24506ba22480 | 104 | #define D_LCD_D4 (1<<D_LCD_PIN_D4) |
wim | 13:24506ba22480 | 105 | #define D_LCD_D5 (1<<D_LCD_PIN_D5) |
wim | 13:24506ba22480 | 106 | #define D_LCD_D6 (1<<D_LCD_PIN_D6) |
wim | 13:24506ba22480 | 107 | #define D_LCD_D7 (1<<D_LCD_PIN_D7) |
wim | 13:24506ba22480 | 108 | #define D_LCD_RS (1<<D_LCD_PIN_RS) |
wim | 13:24506ba22480 | 109 | #define D_LCD_E (1<<D_LCD_PIN_E) |
wim | 13:24506ba22480 | 110 | #define D_LCD_E2 (1<<D_LCD_PIN_E2) |
wim | 13:24506ba22480 | 111 | #define D_LCD_BL (1<<D_LCD_PIN_BL) |
wim | 20:e0da005a777f | 112 | //#define D_LCD_RW (1<<D_LCD_PIN_RW) |
wim | 20:e0da005a777f | 113 | |
wim | 20:e0da005a777f | 114 | |
wim | 20:e0da005a777f | 115 | #define D_LCD_BUS_MSK (D_LCD_D4 | D_LCD_D5 | D_LCD_D6 | D_LCD_D7) |
wim | 20:e0da005a777f | 116 | #define D_LCD_BUS_DEF 0x00 |
wim | 13:24506ba22480 | 117 | |
wim | 13:24506ba22480 | 118 | |
wim | 13:24506ba22480 | 119 | /** Some sample User Defined Chars 5x7 dots */ |
wim | 11:9ec02df863a1 | 120 | const char udc_ae[] = {0x00, 0x00, 0x1B, 0x05, 0x1F, 0x14, 0x1F, 0x00}; //æ |
wim | 11:9ec02df863a1 | 121 | const char udc_0e[] = {0x00, 0x00, 0x0E, 0x13, 0x15, 0x19, 0x0E, 0x00}; //ø |
wim | 11:9ec02df863a1 | 122 | const char udc_ao[] = {0x0E, 0x0A, 0x0E, 0x01, 0x0F, 0x11, 0x0F, 0x00}; //å |
wim | 11:9ec02df863a1 | 123 | const char udc_AE[] = {0x0F, 0x14, 0x14, 0x1F, 0x14, 0x14, 0x17, 0x00}; //Æ |
wim | 11:9ec02df863a1 | 124 | const char udc_0E[] = {0x0E, 0x13, 0x15, 0x15, 0x15, 0x19, 0x0E, 0x00}; //Ø |
wim | 18:bd65dc10f27f | 125 | const char udc_Ao[] = {0x0E, 0x0A, 0x0E, 0x11, 0x1F, 0x11, 0x11, 0x00}; //Å |
wim | 18:bd65dc10f27f | 126 | const char udc_PO[] = {0x04, 0x0A, 0x0A, 0x1F, 0x1B, 0x1B, 0x1F, 0x00}; //Padlock Open |
wim | 18:bd65dc10f27f | 127 | const char udc_PC[] = {0x1C, 0x10, 0x08, 0x1F, 0x1B, 0x1B, 0x1F, 0x00}; //Padlock Closed |
wim | 11:9ec02df863a1 | 128 | |
wim | 11:9ec02df863a1 | 129 | const char udc_0[] = {0x18, 0x14, 0x12, 0x11, 0x12, 0x14, 0x18, 0x00}; // |> |
wim | 11:9ec02df863a1 | 130 | const char udc_1[] = {0x03, 0x05, 0x09, 0x11, 0x09, 0x05, 0x03, 0x00}; // <| |
wim | 11:9ec02df863a1 | 131 | const char udc_2[] = {0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x00}; // | |
wim | 11:9ec02df863a1 | 132 | const char udc_3[] = {0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x00}; // || |
wim | 11:9ec02df863a1 | 133 | const char udc_4[] = {0x15, 0x15, 0x15, 0x15, 0x15, 0x15, 0x15, 0x00}; // ||| |
wim | 11:9ec02df863a1 | 134 | const char udc_5[] = {0x00, 0x1f, 0x00, 0x1f, 0x00, 0x1f, 0x00, 0x00}; // = |
wim | 11:9ec02df863a1 | 135 | const char udc_6[] = {0x15, 0x0a, 0x15, 0x0a, 0x15, 0x0a, 0x15, 0x00}; // checkerboard |
wim | 11:9ec02df863a1 | 136 | const char udc_7[] = {0x10, 0x08, 0x04, 0x02, 0x01, 0x00, 0x10, 0x00}; // \ |
wim | 11:9ec02df863a1 | 137 | |
wim | 13:24506ba22480 | 138 | const char udc_degr[] = {0x06, 0x09, 0x09, 0x06, 0x00, 0x00, 0x00, 0x00}; // Degree symbol |
wim | 13:24506ba22480 | 139 | |
wim | 13:24506ba22480 | 140 | const char udc_TM_T[] = {0x1F, 0x04, 0x04, 0x04, 0x00, 0x00, 0x00, 0x00}; // Trademark T |
wim | 13:24506ba22480 | 141 | const char udc_TM_M[] = {0x11, 0x1B, 0x15, 0x11, 0x00, 0x00, 0x00, 0x00}; // Trademark M |
wim | 13:24506ba22480 | 142 | |
wim | 13:24506ba22480 | 143 | //const char udc_Bat_Hi[] = {0x0E, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x00}; // Battery Full |
wim | 13:24506ba22480 | 144 | //const char udc_Bat_Ha[] = {0x0E, 0x11, 0x13, 0x17, 0x1F, 0x1F, 0x1F, 0x00}; // Battery Half |
wim | 13:24506ba22480 | 145 | //const char udc_Bat_Lo[] = {0x0E, 0x11, 0x11, 0x11, 0x11, 0x11, 0x1F, 0x00}; // Battery Low |
wim | 13:24506ba22480 | 146 | const char udc_Bat_Hi[] = {0x0E, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x00}; // Battery Full |
wim | 13:24506ba22480 | 147 | const char udc_Bat_Ha[] = {0x0E, 0x11, 0x11, 0x1F, 0x1F, 0x1F, 0x1F, 0x00}; // Battery Half |
wim | 13:24506ba22480 | 148 | const char udc_Bat_Lo[] = {0x0E, 0x11, 0x11, 0x11, 0x11, 0x1F, 0x1F, 0x00}; // Battery Low |
wim | 18:bd65dc10f27f | 149 | const char udc_AC[] = {0x0A, 0x0A, 0x1F, 0x11, 0x0E, 0x04, 0x04, 0x00}; // AC Power |
wim | 13:24506ba22480 | 150 | |
wim | 18:bd65dc10f27f | 151 | //const char udc_smiley[] = {0x00, 0x0A, 0x00, 0x04, 0x11, 0x0E, 0x00, 0x00}; // Smiley |
wim | 18:bd65dc10f27f | 152 | //const char udc_droopy[] = {0x00, 0x0A, 0x00, 0x04, 0x00, 0x0E, 0x11, 0x00}; // Droopey |
wim | 18:bd65dc10f27f | 153 | //const char udc_note[] = {0x01, 0x03, 0x05, 0x09, 0x0B, 0x1B, 0x18, 0x00}; // Note |
wim | 18:bd65dc10f27f | 154 | |
wim | 18:bd65dc10f27f | 155 | //const char udc_bar_1[] = {0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x00}; // Bar 1 |
wim | 18:bd65dc10f27f | 156 | //const char udc_bar_2[] = {0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x00}; // Bar 11 |
wim | 18:bd65dc10f27f | 157 | //const char udc_bar_3[] = {0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x00}; // Bar 111 |
wim | 18:bd65dc10f27f | 158 | //const char udc_bar_4[] = {0x17, 0x17, 0x17, 0x17, 0x17, 0x17, 0x17, 0x00}; // Bar 1111 |
wim | 18:bd65dc10f27f | 159 | //const char udc_bar_5[] = {0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x00}; // Bar 11111 |
wim | 13:24506ba22480 | 160 | |
wim | 11:9ec02df863a1 | 161 | |
wim | 11:9ec02df863a1 | 162 | /** A TextLCD interface for driving 4-bit HD44780-based LCDs |
wim | 11:9ec02df863a1 | 163 | * |
wim | 22:35742ec80c24 | 164 | * @brief Currently supports 8x1, 8x2, 12x2, 12x4, 16x1, 16x2, 16x4, 20x2, 20x4, 24x2, 24x4, 40x2 and 40x4 panels |
wim | 22:35742ec80c24 | 165 | * Interface options include direct mbed pins, I2C portexpander (PCF8474, PCF8574A) or SPI bus shiftregister (74595) |
wim | 11:9ec02df863a1 | 166 | * |
wim | 11:9ec02df863a1 | 167 | */ |
wim | 21:9eb628d9e164 | 168 | class TextLCD_Base : public Stream { |
simon | 1:ac48b187213c | 169 | public: |
simon | 1:ac48b187213c | 170 | |
simon | 2:227356c7d12c | 171 | /** LCD panel format */ |
simon | 1:ac48b187213c | 172 | enum LCDType { |
wim | 8:03116f75b66e | 173 | LCD8x1, /**< 8x1 LCD panel */ |
wim | 13:24506ba22480 | 174 | LCD8x2, /**< 8x2 LCD panel */ |
wim | 18:bd65dc10f27f | 175 | LCD8x2B, /**< 8x2 LCD panel (actually 16x1) */ |
wim | 15:b70ebfffb258 | 176 | LCD12x2, /**< 12x2 LCD panel */ |
wim | 15:b70ebfffb258 | 177 | LCD12x4, /**< 12x4 LCD panel */ |
wim | 13:24506ba22480 | 178 | LCD16x1, /**< 16x1 LCD panel (actually 8x2) */ |
wim | 8:03116f75b66e | 179 | LCD16x2, /**< 16x2 LCD panel (default) */ |
wim | 8:03116f75b66e | 180 | LCD16x2B, /**< 16x2 LCD panel alternate addressing */ |
wim | 8:03116f75b66e | 181 | LCD16x4, /**< 16x4 LCD panel */ |
wim | 8:03116f75b66e | 182 | LCD20x2, /**< 20x2 LCD panel */ |
wim | 8:03116f75b66e | 183 | LCD20x4, /**< 20x4 LCD panel */ |
wim | 9:0893d986e717 | 184 | LCD24x2, /**< 24x2 LCD panel */ |
wim | 10:dd9b3a696acd | 185 | LCD24x4, /**< 24x4 LCD panel, special mode KS0078 */ |
wim | 15:b70ebfffb258 | 186 | LCD40x2, /**< 40x2 LCD panel */ |
wim | 15:b70ebfffb258 | 187 | LCD40x4 /**< 40x4 LCD panel, Two controller version */ |
simon | 1:ac48b187213c | 188 | }; |
simon | 1:ac48b187213c | 189 | |
wim | 19:c747b9e2e7b8 | 190 | /** LCD Controller Device */ |
wim | 19:c747b9e2e7b8 | 191 | enum LCDCtrl { |
wim | 19:c747b9e2e7b8 | 192 | HD44780, /**< HD44780 (default) */ |
wim | 19:c747b9e2e7b8 | 193 | WS0010, /**< WS0010 OLED Controller */ |
wim | 20:e0da005a777f | 194 | ST7036 /**< ST7036 */ |
wim | 19:c747b9e2e7b8 | 195 | }; |
wim | 19:c747b9e2e7b8 | 196 | |
wim | 19:c747b9e2e7b8 | 197 | |
wim | 10:dd9b3a696acd | 198 | /** LCD Cursor control */ |
wim | 10:dd9b3a696acd | 199 | enum LCDCursor { |
wim | 17:652ab113bc2e | 200 | CurOff_BlkOff = 0x00, /**< Cursor Off, Blinking Char Off */ |
wim | 17:652ab113bc2e | 201 | CurOn_BlkOff = 0x02, /**< Cursor On, Blinking Char Off */ |
wim | 17:652ab113bc2e | 202 | CurOff_BlkOn = 0x01, /**< Cursor Off, Blinking Char On */ |
wim | 17:652ab113bc2e | 203 | CurOn_BlkOn = 0x03 /**< Cursor On, Blinking Char On */ |
wim | 17:652ab113bc2e | 204 | }; |
wim | 17:652ab113bc2e | 205 | |
wim | 17:652ab113bc2e | 206 | |
wim | 17:652ab113bc2e | 207 | /** LCD Display control */ |
wim | 17:652ab113bc2e | 208 | enum LCDMode { |
wim | 17:652ab113bc2e | 209 | DispOff = 0x00, /**< Display Off */ |
wim | 17:652ab113bc2e | 210 | DispOn = 0x04 /**< Display On */ |
wim | 10:dd9b3a696acd | 211 | }; |
wim | 10:dd9b3a696acd | 212 | |
wim | 20:e0da005a777f | 213 | /** LCD Backlight control */ |
wim | 20:e0da005a777f | 214 | enum LCDBacklight { |
wim | 20:e0da005a777f | 215 | LightOff, /**< Backlight Off */ |
wim | 20:e0da005a777f | 216 | LightOn /**< Backlight On */ |
wim | 20:e0da005a777f | 217 | }; |
wim | 10:dd9b3a696acd | 218 | |
simon | 2:227356c7d12c | 219 | |
simon | 2:227356c7d12c | 220 | #if DOXYGEN_ONLY |
simon | 2:227356c7d12c | 221 | /** Write a character to the LCD |
simon | 2:227356c7d12c | 222 | * |
simon | 2:227356c7d12c | 223 | * @param c The character to write to the display |
simon | 2:227356c7d12c | 224 | */ |
simon | 2:227356c7d12c | 225 | int putc(int c); |
simon | 2:227356c7d12c | 226 | |
simon | 2:227356c7d12c | 227 | /** Write a formated string to the LCD |
simon | 2:227356c7d12c | 228 | * |
simon | 2:227356c7d12c | 229 | * @param format A printf-style format string, followed by the |
simon | 2:227356c7d12c | 230 | * variables to use in formating the string. |
simon | 2:227356c7d12c | 231 | */ |
simon | 2:227356c7d12c | 232 | int printf(const char* format, ...); |
simon | 2:227356c7d12c | 233 | #endif |
simon | 2:227356c7d12c | 234 | |
simon | 2:227356c7d12c | 235 | /** Locate to a screen column and row |
simon | 2:227356c7d12c | 236 | * |
simon | 2:227356c7d12c | 237 | * @param column The horizontal position from the left, indexed from 0 |
simon | 2:227356c7d12c | 238 | * @param row The vertical position from the top, indexed from 0 |
simon | 2:227356c7d12c | 239 | */ |
simon | 1:ac48b187213c | 240 | void locate(int column, int row); |
simon | 2:227356c7d12c | 241 | |
wim | 10:dd9b3a696acd | 242 | |
wim | 10:dd9b3a696acd | 243 | /** Return the memoryaddress of screen column and row location |
wim | 10:dd9b3a696acd | 244 | * |
wim | 10:dd9b3a696acd | 245 | * @param column The horizontal position from the left, indexed from 0 |
wim | 10:dd9b3a696acd | 246 | * @param row The vertical position from the top, indexed from 0 |
wim | 10:dd9b3a696acd | 247 | * @param return The memoryaddress of screen column and row location |
wim | 10:dd9b3a696acd | 248 | */ |
wim | 9:0893d986e717 | 249 | int getAddress(int column, int row); |
wim | 10:dd9b3a696acd | 250 | |
wim | 10:dd9b3a696acd | 251 | |
wim | 10:dd9b3a696acd | 252 | /** Set the memoryaddress of screen column and row location |
wim | 10:dd9b3a696acd | 253 | * |
wim | 10:dd9b3a696acd | 254 | * @param column The horizontal position from the left, indexed from 0 |
wim | 10:dd9b3a696acd | 255 | * @param row The vertical position from the top, indexed from 0 |
wim | 10:dd9b3a696acd | 256 | */ |
wim | 9:0893d986e717 | 257 | void setAddress(int column, int row); |
wim | 9:0893d986e717 | 258 | |
wim | 10:dd9b3a696acd | 259 | |
wim | 22:35742ec80c24 | 260 | /** Clear the screen and locate to 0,0 |
wim | 22:35742ec80c24 | 261 | */ |
simon | 1:ac48b187213c | 262 | void cls(); |
simon | 2:227356c7d12c | 263 | |
wim | 10:dd9b3a696acd | 264 | /** Return the number of rows |
wim | 10:dd9b3a696acd | 265 | * |
wim | 10:dd9b3a696acd | 266 | * @param return The number of rows |
wim | 10:dd9b3a696acd | 267 | */ |
simon | 1:ac48b187213c | 268 | int rows(); |
wim | 10:dd9b3a696acd | 269 | |
wim | 10:dd9b3a696acd | 270 | /** Return the number of columns |
wim | 10:dd9b3a696acd | 271 | * |
wim | 10:dd9b3a696acd | 272 | * @param return The number of columns |
wim | 10:dd9b3a696acd | 273 | */ |
wim | 10:dd9b3a696acd | 274 | int columns(); |
simon | 2:227356c7d12c | 275 | |
wim | 11:9ec02df863a1 | 276 | /** Set the Cursormode |
wim | 11:9ec02df863a1 | 277 | * |
wim | 17:652ab113bc2e | 278 | * @param cursorMode The Cursor mode (CurOff_BlkOff, CurOn_BlkOff, CurOff_BlkOn, CurOn_BlkOn) |
wim | 11:9ec02df863a1 | 279 | */ |
wim | 17:652ab113bc2e | 280 | void setCursor(LCDCursor cursorMode); |
wim | 17:652ab113bc2e | 281 | |
wim | 17:652ab113bc2e | 282 | |
wim | 17:652ab113bc2e | 283 | /** Set the Displaymode |
wim | 17:652ab113bc2e | 284 | * |
wim | 17:652ab113bc2e | 285 | * @param displayMode The Display mode (DispOff, DispOn) |
wim | 17:652ab113bc2e | 286 | */ |
wim | 21:9eb628d9e164 | 287 | void setMode(LCDMode displayMode); |
wim | 11:9ec02df863a1 | 288 | |
wim | 20:e0da005a777f | 289 | /** Set the Backlight mode |
wim | 20:e0da005a777f | 290 | * |
wim | 21:9eb628d9e164 | 291 | * @param backlightMode The Backlight mode (LightOff, LightOn) |
wim | 20:e0da005a777f | 292 | */ |
wim | 21:9eb628d9e164 | 293 | void setBacklight(LCDBacklight backlightMode); |
wim | 20:e0da005a777f | 294 | |
wim | 11:9ec02df863a1 | 295 | |
wim | 11:9ec02df863a1 | 296 | /** Set User Defined Characters |
wim | 11:9ec02df863a1 | 297 | * |
wim | 11:9ec02df863a1 | 298 | * @param unsigned char c The Index of the UDC (0..7) |
wim | 12:6bf9d9957d31 | 299 | * @param char *udc_data The bitpatterns for the UDC (8 bytes of 5 significant bits) |
wim | 11:9ec02df863a1 | 300 | */ |
wim | 11:9ec02df863a1 | 301 | void setUDC(unsigned char c, char *udc_data); |
wim | 11:9ec02df863a1 | 302 | |
wim | 20:e0da005a777f | 303 | |
simon | 1:ac48b187213c | 304 | protected: |
wim | 13:24506ba22480 | 305 | |
wim | 21:9eb628d9e164 | 306 | /** LCD controller select, mainly used for LCD40x4 |
wim | 21:9eb628d9e164 | 307 | */ |
wim | 19:c747b9e2e7b8 | 308 | enum _LCDCtrl_Idx { |
wim | 15:b70ebfffb258 | 309 | _LCDCtrl_0, /*< Primary */ |
wim | 15:b70ebfffb258 | 310 | _LCDCtrl_1, /*< Secondary */ |
wim | 15:b70ebfffb258 | 311 | }; |
wim | 21:9eb628d9e164 | 312 | |
wim | 21:9eb628d9e164 | 313 | /** Create a TextLCD_Base interface |
wim | 21:9eb628d9e164 | 314 | * @brief Base class, can not be instantiated |
wim | 21:9eb628d9e164 | 315 | * |
wim | 21:9eb628d9e164 | 316 | * @param type Sets the panel size/addressing mode (default = LCD16x2) |
wim | 21:9eb628d9e164 | 317 | * @param ctrl LCD controller (default = HD44780) |
wim | 21:9eb628d9e164 | 318 | */ |
wim | 21:9eb628d9e164 | 319 | TextLCD_Base(LCDType type = LCD16x2, LCDCtrl ctrl = HD44780); |
wim | 21:9eb628d9e164 | 320 | |
wim | 15:b70ebfffb258 | 321 | |
simon | 1:ac48b187213c | 322 | // Stream implementation functions |
simon | 1:ac48b187213c | 323 | virtual int _putc(int value); |
simon | 1:ac48b187213c | 324 | virtual int _getc(); |
simon | 1:ac48b187213c | 325 | |
wim | 21:9eb628d9e164 | 326 | /** Low level methods for LCD controller |
wim | 21:9eb628d9e164 | 327 | */ |
wim | 13:24506ba22480 | 328 | void _init(); |
wim | 15:b70ebfffb258 | 329 | void _initCtrl(); |
wim | 13:24506ba22480 | 330 | int _address(int column, int row); |
wim | 21:9eb628d9e164 | 331 | void _setCursor(LCDCursor show); |
wim | 17:652ab113bc2e | 332 | void _setUDC(unsigned char c, char *udc_data); |
wim | 21:9eb628d9e164 | 333 | void _setCursorAndDisplayMode(LCDMode displayMode, LCDCursor cursorType); |
wim | 13:24506ba22480 | 334 | |
wim | 21:9eb628d9e164 | 335 | /** Low level write operations to LCD controller |
wim | 21:9eb628d9e164 | 336 | */ |
wim | 17:652ab113bc2e | 337 | void _writeNibble(int value); |
wim | 15:b70ebfffb258 | 338 | void _writeByte(int value); |
wim | 15:b70ebfffb258 | 339 | void _writeCommand(int command); |
wim | 15:b70ebfffb258 | 340 | void _writeData(int data); |
wim | 15:b70ebfffb258 | 341 | |
wim | 21:9eb628d9e164 | 342 | /** Pure Virtual Low level writes to LCD Bus (serial or parallel) |
wim | 21:9eb628d9e164 | 343 | */ |
wim | 21:9eb628d9e164 | 344 | virtual void _setEnable(bool value) = 0; |
wim | 21:9eb628d9e164 | 345 | virtual void _setRS(bool value) = 0; |
wim | 21:9eb628d9e164 | 346 | virtual void _setBL(bool value) = 0; |
wim | 21:9eb628d9e164 | 347 | virtual void _setData(int value) = 0; |
wim | 13:24506ba22480 | 348 | |
wim | 13:24506ba22480 | 349 | |
wim | 13:24506ba22480 | 350 | //Display type |
simon | 1:ac48b187213c | 351 | LCDType _type; |
simon | 1:ac48b187213c | 352 | |
wim | 21:9eb628d9e164 | 353 | //Display mode |
wim | 17:652ab113bc2e | 354 | LCDMode _currentMode; |
wim | 17:652ab113bc2e | 355 | |
wim | 19:c747b9e2e7b8 | 356 | //Controller type |
wim | 19:c747b9e2e7b8 | 357 | LCDCtrl _ctrl; |
wim | 19:c747b9e2e7b8 | 358 | |
wim | 15:b70ebfffb258 | 359 | //Controller select, mainly used for LCD40x4 |
wim | 19:c747b9e2e7b8 | 360 | _LCDCtrl_Idx _ctrl_idx; |
wim | 15:b70ebfffb258 | 361 | |
wim | 13:24506ba22480 | 362 | // Cursor |
simon | 1:ac48b187213c | 363 | int _column; |
simon | 1:ac48b187213c | 364 | int _row; |
wim | 15:b70ebfffb258 | 365 | LCDCursor _currentCursor; |
simon | 1:ac48b187213c | 366 | }; |
simon | 1:ac48b187213c | 367 | |
wim | 23:d47f226efb24 | 368 | //--------- End TextLCD_Base ----------- |
wim | 22:35742ec80c24 | 369 | |
wim | 22:35742ec80c24 | 370 | |
wim | 22:35742ec80c24 | 371 | |
wim | 23:d47f226efb24 | 372 | //--------- Start TextLCD Bus ----------- |
wim | 21:9eb628d9e164 | 373 | |
wim | 21:9eb628d9e164 | 374 | /** Create a TextLCD interface for using regular mbed pins |
wim | 21:9eb628d9e164 | 375 | * |
wim | 21:9eb628d9e164 | 376 | */ |
wim | 21:9eb628d9e164 | 377 | class TextLCD : public TextLCD_Base { |
wim | 21:9eb628d9e164 | 378 | public: |
wim | 21:9eb628d9e164 | 379 | /** Create a TextLCD interface for using regular mbed pins |
wim | 21:9eb628d9e164 | 380 | * |
wim | 21:9eb628d9e164 | 381 | * @param rs Instruction/data control line |
wim | 21:9eb628d9e164 | 382 | * @param e Enable line (clock) |
wim | 21:9eb628d9e164 | 383 | * @param d4-d7 Data lines for using as a 4-bit interface |
wim | 21:9eb628d9e164 | 384 | * @param type Sets the panel size/addressing mode (default = LCD16x2) |
wim | 21:9eb628d9e164 | 385 | * @param bl Backlight control line (optional, default = NC) |
wim | 21:9eb628d9e164 | 386 | * @param e2 Enable2 line (clock for second controller, LCD40x4 only) |
wim | 21:9eb628d9e164 | 387 | * @param ctrl LCD controller (default = HD44780) |
wim | 21:9eb628d9e164 | 388 | */ |
wim | 21:9eb628d9e164 | 389 | TextLCD(PinName rs, PinName e, PinName d4, PinName d5, PinName d6, PinName d7, LCDType type = LCD16x2, PinName bl = NC, PinName e2 = NC, LCDCtrl ctrl = HD44780); |
wim | 21:9eb628d9e164 | 390 | |
wim | 22:35742ec80c24 | 391 | |
wim | 22:35742ec80c24 | 392 | /** Destruct a TextLCD interface for using regular mbed pins |
wim | 22:35742ec80c24 | 393 | * |
wim | 22:35742ec80c24 | 394 | * @param none |
wim | 22:35742ec80c24 | 395 | * @return none |
wim | 22:35742ec80c24 | 396 | */ |
wim | 22:35742ec80c24 | 397 | virtual ~TextLCD(); |
wim | 22:35742ec80c24 | 398 | |
wim | 21:9eb628d9e164 | 399 | private: |
wim | 21:9eb628d9e164 | 400 | //Low level writes to LCD Bus (serial or parallel) |
wim | 21:9eb628d9e164 | 401 | virtual void _setEnable(bool value); |
wim | 21:9eb628d9e164 | 402 | virtual void _setRS(bool value); |
wim | 21:9eb628d9e164 | 403 | virtual void _setBL(bool value); |
wim | 21:9eb628d9e164 | 404 | virtual void _setData(int value); |
wim | 21:9eb628d9e164 | 405 | |
wim | 22:35742ec80c24 | 406 | /** Regular mbed pins bus |
wim | 22:35742ec80c24 | 407 | */ |
wim | 22:35742ec80c24 | 408 | DigitalOut _rs, _e; |
wim | 22:35742ec80c24 | 409 | BusOut _d; |
wim | 22:35742ec80c24 | 410 | |
wim | 22:35742ec80c24 | 411 | /** Optional Hardware pins for the Backlight and LCD40x4 device |
wim | 22:35742ec80c24 | 412 | * Default PinName value is NC, must be used as pointer to avoid issues with mbed lib and DigitalOut pins |
wim | 22:35742ec80c24 | 413 | */ |
wim | 22:35742ec80c24 | 414 | DigitalOut *_bl, *_e2; |
wim | 21:9eb628d9e164 | 415 | }; |
wim | 21:9eb628d9e164 | 416 | |
wim | 22:35742ec80c24 | 417 | |
wim | 23:d47f226efb24 | 418 | //----------- End TextLCD --------------- |
wim | 21:9eb628d9e164 | 419 | |
wim | 21:9eb628d9e164 | 420 | |
wim | 23:d47f226efb24 | 421 | //--------- Start TextLCD_I2C ----------- |
wim | 22:35742ec80c24 | 422 | |
wim | 22:35742ec80c24 | 423 | |
wim | 22:35742ec80c24 | 424 | /** Create a TextLCD interface using an I2C PC8574 or PCF8574A portexpander |
wim | 21:9eb628d9e164 | 425 | * |
wim | 21:9eb628d9e164 | 426 | */ |
wim | 21:9eb628d9e164 | 427 | class TextLCD_I2C : public TextLCD_Base { |
wim | 21:9eb628d9e164 | 428 | public: |
wim | 22:35742ec80c24 | 429 | /** Create a TextLCD interface using an I2C PC8574 or PCF8574A portexpander |
wim | 21:9eb628d9e164 | 430 | * |
wim | 21:9eb628d9e164 | 431 | * @param i2c I2C Bus |
wim | 22:35742ec80c24 | 432 | * @param deviceAddress I2C slave address (PCF8574 or PCF8574A, default = 0x40) |
wim | 21:9eb628d9e164 | 433 | * @param type Sets the panel size/addressing mode (default = LCD16x2) |
wim | 21:9eb628d9e164 | 434 | * @param ctrl LCD controller (default = HD44780) |
wim | 21:9eb628d9e164 | 435 | */ |
wim | 22:35742ec80c24 | 436 | TextLCD_I2C(I2C *i2c, char deviceAddress = 0x40, LCDType type = LCD16x2, LCDCtrl ctrl = HD44780); |
wim | 21:9eb628d9e164 | 437 | |
wim | 21:9eb628d9e164 | 438 | private: |
wim | 21:9eb628d9e164 | 439 | //Low level writes to LCD Bus (serial or parallel) |
wim | 21:9eb628d9e164 | 440 | virtual void _setEnable(bool value); |
wim | 21:9eb628d9e164 | 441 | virtual void _setRS(bool value); |
wim | 21:9eb628d9e164 | 442 | virtual void _setBL(bool value); |
wim | 21:9eb628d9e164 | 443 | virtual void _setData(int value); |
wim | 21:9eb628d9e164 | 444 | |
wim | 21:9eb628d9e164 | 445 | //I2C bus |
wim | 21:9eb628d9e164 | 446 | I2C *_i2c; |
wim | 21:9eb628d9e164 | 447 | char _slaveAddress; |
wim | 21:9eb628d9e164 | 448 | |
wim | 21:9eb628d9e164 | 449 | // Internal bus mirror value for serial bus only |
wim | 21:9eb628d9e164 | 450 | char _lcd_bus; |
wim | 21:9eb628d9e164 | 451 | |
wim | 21:9eb628d9e164 | 452 | }; |
wim | 21:9eb628d9e164 | 453 | |
wim | 21:9eb628d9e164 | 454 | |
wim | 23:d47f226efb24 | 455 | //---------- End TextLCD_I2C ------------ |
wim | 22:35742ec80c24 | 456 | |
wim | 22:35742ec80c24 | 457 | |
wim | 22:35742ec80c24 | 458 | |
wim | 23:d47f226efb24 | 459 | //--------- Start TextLCD_SPI ----------- |
wim | 22:35742ec80c24 | 460 | |
wim | 21:9eb628d9e164 | 461 | |
wim | 21:9eb628d9e164 | 462 | /** Create a TextLCD interface using an SPI 74595 portexpander |
wim | 21:9eb628d9e164 | 463 | * |
wim | 21:9eb628d9e164 | 464 | */ |
wim | 21:9eb628d9e164 | 465 | class TextLCD_SPI : public TextLCD_Base { |
wim | 21:9eb628d9e164 | 466 | public: |
wim | 21:9eb628d9e164 | 467 | /** Create a TextLCD interface using an SPI 74595 portexpander |
wim | 21:9eb628d9e164 | 468 | * |
wim | 21:9eb628d9e164 | 469 | * @param spi SPI Bus |
wim | 21:9eb628d9e164 | 470 | * @param cs chip select pin (active low) |
wim | 21:9eb628d9e164 | 471 | * @param type Sets the panel size/addressing mode (default = LCD16x2) |
wim | 21:9eb628d9e164 | 472 | * @param ctrl LCD controller (default = HD44780) |
wim | 21:9eb628d9e164 | 473 | */ |
wim | 21:9eb628d9e164 | 474 | TextLCD_SPI(SPI *spi, PinName cs, LCDType type = LCD16x2, LCDCtrl ctrl = HD44780); |
wim | 21:9eb628d9e164 | 475 | |
wim | 21:9eb628d9e164 | 476 | |
wim | 21:9eb628d9e164 | 477 | private: |
wim | 21:9eb628d9e164 | 478 | //Low level writes to LCD Bus (serial or parallel) |
wim | 21:9eb628d9e164 | 479 | virtual void _setEnable(bool value); |
wim | 21:9eb628d9e164 | 480 | virtual void _setRS(bool value); |
wim | 21:9eb628d9e164 | 481 | virtual void _setBL(bool value); |
wim | 21:9eb628d9e164 | 482 | virtual void _setData(int value); |
wim | 21:9eb628d9e164 | 483 | virtual void _setCS(bool value); |
wim | 21:9eb628d9e164 | 484 | |
wim | 21:9eb628d9e164 | 485 | //Low level writes to LCD serial bus only |
wim | 21:9eb628d9e164 | 486 | void _writeBus(); |
wim | 21:9eb628d9e164 | 487 | |
wim | 21:9eb628d9e164 | 488 | // SPI bus |
wim | 21:9eb628d9e164 | 489 | SPI *_spi; |
wim | 21:9eb628d9e164 | 490 | DigitalOut _cs; |
wim | 21:9eb628d9e164 | 491 | |
wim | 21:9eb628d9e164 | 492 | // Internal bus mirror value for serial bus only |
wim | 21:9eb628d9e164 | 493 | char _lcd_bus; |
wim | 21:9eb628d9e164 | 494 | |
wim | 21:9eb628d9e164 | 495 | }; |
wim | 21:9eb628d9e164 | 496 | |
wim | 23:d47f226efb24 | 497 | //---------- End TextLCD_SPI ------------ |
wim | 21:9eb628d9e164 | 498 | |
simon | 1:ac48b187213c | 499 | #endif |