modtronix H
Library for Modtronix im4OLED board with 128x64 OLED and 4 buttons. For details, see product page http://modtronix.com/im4oled.html. Is a clone of Adafruit_GFX library, with some additional code added.
Fork of
Adafruit_GFX
by 
Neal Horman
mx_ssd1306.h@27:dd7d538d3849, 2016-08-19 (annotated)
- Committer:
- modtronix-com
- Date:
- Fri Aug 19 15:44:25 2016 +1000
- Revision:
- 27:dd7d538d3849
- Parent:
- 26:ef08580c35df
Added tag v1.1 for changeset ef08580c35df
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| modtronix-com |
22:f63aeb3769b5 | 1 | /********************************************************************* |
| modtronix-com |
22:f63aeb3769b5 | 2 | This is a library for our Monochrome OLEDs based on SSD1306 drivers |
| modtronix-com |
22:f63aeb3769b5 | 3 | |
| modtronix-com |
22:f63aeb3769b5 | 4 | Pick one up today in the adafruit shop! |
| modtronix-com |
22:f63aeb3769b5 | 5 | ------> http://www.adafruit.com/category/63_98 |
| modtronix-com |
22:f63aeb3769b5 | 6 | |
| modtronix-com |
22:f63aeb3769b5 | 7 | These displays use SPI to communicate, 4 or 5 pins are required to |
| modtronix-com |
22:f63aeb3769b5 | 8 | interface |
| modtronix-com |
22:f63aeb3769b5 | 9 | |
| modtronix-com |
22:f63aeb3769b5 | 10 | Adafruit invests time and resources providing this open source code, |
| modtronix-com |
22:f63aeb3769b5 | 11 | please support Adafruit and open-source hardware by purchasing |
| modtronix-com |
22:f63aeb3769b5 | 12 | products from Adafruit! |
| modtronix-com |
22:f63aeb3769b5 | 13 | |
| modtronix-com |
22:f63aeb3769b5 | 14 | Written by Limor Fried/Ladyada for Adafruit Industries. |
| modtronix-com |
22:f63aeb3769b5 | 15 | BSD license, check license.txt for more information |
| modtronix-com |
22:f63aeb3769b5 | 16 | All text above, and the splash screen must be included in any redistribution |
| modtronix-com |
22:f63aeb3769b5 | 17 | *********************************************************************/ |
| modtronix-com |
22:f63aeb3769b5 | 18 | |
| modtronix-com |
22:f63aeb3769b5 | 19 | /* |
| modtronix-com |
22:f63aeb3769b5 | 20 | * Modified by Neal Horman 7/14/2012 for use in mbed |
| modtronix-com |
22:f63aeb3769b5 | 21 | */ |
| modtronix-com |
22:f63aeb3769b5 | 22 | |
| modtronix-com |
22:f63aeb3769b5 | 23 | #ifndef _ADAFRUIT_SSD1306_H_ |
| modtronix-com |
22:f63aeb3769b5 | 24 | #define _ADAFRUIT_SSD1306_H_ |
| modtronix-com |
26:ef08580c35df | 25 | #include "im4oled_default_config.h" |
| modtronix-com |
22:f63aeb3769b5 | 26 | #include "mx_gfx.h" |
| modtronix-com |
22:f63aeb3769b5 | 27 | |
| modtronix-com |
23:44309099c532 | 28 | #if (OLED_USE_VECTOR==1) |
| modtronix-com |
22:f63aeb3769b5 | 29 | #include <vector> |
| modtronix-com |
22:f63aeb3769b5 | 30 | #endif |
| modtronix-com |
22:f63aeb3769b5 | 31 | #include <algorithm> |
| modtronix-com |
22:f63aeb3769b5 | 32 | |
| modtronix-com |
22:f63aeb3769b5 | 33 | #define OLED_HAS_RESET 0 |
| modtronix-com |
22:f63aeb3769b5 | 34 | |
| modtronix-com |
22:f63aeb3769b5 | 35 | // A DigitalOut sub-class that provides a constructed default state |
| modtronix-com |
22:f63aeb3769b5 | 36 | class DigitalOut2 : public DigitalOut |
| modtronix-com |
22:f63aeb3769b5 | 37 | { |
| modtronix-com |
22:f63aeb3769b5 | 38 | public: |
| modtronix-com |
22:f63aeb3769b5 | 39 | DigitalOut2(PinName pin, bool active = false) : DigitalOut(pin) { write(active); }; |
| modtronix-com |
22:f63aeb3769b5 | 40 | DigitalOut2& operator= (int value) { write(value); return *this; }; |
| modtronix-com |
22:f63aeb3769b5 | 41 | DigitalOut2& operator= (DigitalOut2& rhs) { write(rhs.read()); return *this; }; |
| modtronix-com |
22:f63aeb3769b5 | 42 | operator int() { return read(); }; |
| modtronix-com |
22:f63aeb3769b5 | 43 | }; |
| modtronix-com |
22:f63aeb3769b5 | 44 | |
| modtronix-com |
22:f63aeb3769b5 | 45 | #define SSD1306_EXTERNALVCC 0x1 |
| modtronix-com |
22:f63aeb3769b5 | 46 | #define SSD1306_SWITCHCAPVCC 0x2 |
| modtronix-com |
22:f63aeb3769b5 | 47 | |
| modtronix-com |
22:f63aeb3769b5 | 48 | /** The pure base class for the SSD1306 display driver. |
| modtronix-com |
22:f63aeb3769b5 | 49 | * |
| modtronix-com |
22:f63aeb3769b5 | 50 | * You should derive from this for a new transport interface type, |
| modtronix-com |
22:f63aeb3769b5 | 51 | * such as the SPI and I2C drivers. |
| modtronix-com |
22:f63aeb3769b5 | 52 | */ |
| modtronix-com |
22:f63aeb3769b5 | 53 | class MxSSD1306 : public MxGfx |
| modtronix-com |
22:f63aeb3769b5 | 54 | { |
| modtronix-com |
22:f63aeb3769b5 | 55 | public: |
| modtronix-com |
22:f63aeb3769b5 | 56 | #if (OLED_HAS_RESET==1) |
| modtronix-com |
22:f63aeb3769b5 | 57 | MxSSD1306(PinName RST, uint8_t rawHeight = 32, uint8_t rawWidth = 128) |
| modtronix-com |
22:f63aeb3769b5 | 58 | : MxGfx(rawWidth,rawHeight) |
| modtronix-com |
22:f63aeb3769b5 | 59 | , colBlock(0) |
| modtronix-com |
22:f63aeb3769b5 | 60 | , rowBlock(0) |
| modtronix-com |
22:f63aeb3769b5 | 61 | , rst(RST,false) |
| modtronix-com |
22:f63aeb3769b5 | 62 | #else |
| modtronix-com |
22:f63aeb3769b5 | 63 | MxSSD1306(uint8_t rawHeight = 32, uint8_t rawWidth = 128) |
| modtronix-com |
22:f63aeb3769b5 | 64 | : MxGfx(rawWidth,rawHeight) |
| modtronix-com |
22:f63aeb3769b5 | 65 | , colBlock(0) |
| modtronix-com |
22:f63aeb3769b5 | 66 | , rowBlock(0) |
| modtronix-com |
22:f63aeb3769b5 | 67 | #endif |
| modtronix-com |
22:f63aeb3769b5 | 68 | { |
| modtronix-com |
22:f63aeb3769b5 | 69 | //Initialize as all dirty |
| modtronix-com |
22:f63aeb3769b5 | 70 | memset(&dirty[0], 0xff, sizeof(dirty)); |
| modtronix-com |
22:f63aeb3769b5 | 71 | |
| modtronix-com |
23:44309099c532 | 72 | #if (OLED_USE_VECTOR==0) |
| modtronix-com |
22:f63aeb3769b5 | 73 | memset(&buffer[0], 0, sizeof(buffer)); |
| modtronix-com |
22:f63aeb3769b5 | 74 | #else |
| modtronix-com |
22:f63aeb3769b5 | 75 | buffer.resize(rawHeight * rawWidth / 8); |
| modtronix-com |
22:f63aeb3769b5 | 76 | #endif |
| modtronix-com |
22:f63aeb3769b5 | 77 | }; |
| modtronix-com |
22:f63aeb3769b5 | 78 | |
| modtronix-com |
22:f63aeb3769b5 | 79 | /** Initialize |
| modtronix-com |
22:f63aeb3769b5 | 80 | * @return 0 if success, else I2C or SPI error code |
| modtronix-com |
22:f63aeb3769b5 | 81 | */ |
| modtronix-com |
22:f63aeb3769b5 | 82 | uint8_t begin(uint8_t switchvcc = SSD1306_SWITCHCAPVCC); |
| modtronix-com |
22:f63aeb3769b5 | 83 | |
| modtronix-com |
22:f63aeb3769b5 | 84 | // These must be implemented in the derived transport driver |
| modtronix-com |
22:f63aeb3769b5 | 85 | virtual uint8_t command(uint8_t c) = 0; |
| modtronix-com |
22:f63aeb3769b5 | 86 | virtual uint8_t data(uint8_t c) = 0; |
| modtronix-com |
22:f63aeb3769b5 | 87 | virtual void drawPixel(int16_t x, int16_t y, uint16_t color); |
| modtronix-com |
22:f63aeb3769b5 | 88 | |
| modtronix-com |
22:f63aeb3769b5 | 89 | /** |
| modtronix-com |
22:f63aeb3769b5 | 90 | * Clear the display buffer. Requires a display() call at some point afterwards. |
| modtronix-com |
22:f63aeb3769b5 | 91 | * NOTE that this function will make the WHOLE display as dirty! The next display() call will update the |
| modtronix-com |
22:f63aeb3769b5 | 92 | * entire display! This can be prevented by just clearing the required part of the display using fillRect()! |
| modtronix-com |
22:f63aeb3769b5 | 93 | */ |
| modtronix-com |
22:f63aeb3769b5 | 94 | void clearDisplay(void); |
| modtronix-com |
22:f63aeb3769b5 | 95 | |
| modtronix-com |
22:f63aeb3769b5 | 96 | /** Set display contrast |
| modtronix-com |
22:f63aeb3769b5 | 97 | * @return 0 if success, else I2C or SPI error code |
| modtronix-com |
22:f63aeb3769b5 | 98 | */ |
| modtronix-com |
22:f63aeb3769b5 | 99 | virtual uint8_t setContrast(uint8_t contrast); |
| modtronix-com |
22:f63aeb3769b5 | 100 | |
| modtronix-com |
22:f63aeb3769b5 | 101 | /** Turn display on or off |
| modtronix-com |
22:f63aeb3769b5 | 102 | * @return 0 if success, else I2C or SPI error code |
| modtronix-com |
22:f63aeb3769b5 | 103 | */ |
| modtronix-com |
22:f63aeb3769b5 | 104 | virtual uint8_t displayOn(bool on); |
| modtronix-com |
22:f63aeb3769b5 | 105 | |
| modtronix-com |
22:f63aeb3769b5 | 106 | /** Invert Display |
| modtronix-com |
22:f63aeb3769b5 | 107 | * @return 0 if success, else I2C or SPI error code |
| modtronix-com |
22:f63aeb3769b5 | 108 | */ |
| modtronix-com |
22:f63aeb3769b5 | 109 | virtual uint8_t invertDisplay(bool i); |
| modtronix-com |
22:f63aeb3769b5 | 110 | |
| modtronix-com |
22:f63aeb3769b5 | 111 | /** Cause the display to be updated with the buffer content. |
| modtronix-com |
22:f63aeb3769b5 | 112 | * @return 0 if success, else I2C or SPI error code |
| modtronix-com |
22:f63aeb3769b5 | 113 | */ |
| modtronix-com |
22:f63aeb3769b5 | 114 | uint8_t display(); |
| modtronix-com |
22:f63aeb3769b5 | 115 | |
| modtronix-com |
22:f63aeb3769b5 | 116 | // Fill the buffer with the AdaFruit splash screen. |
| modtronix-com |
22:f63aeb3769b5 | 117 | virtual void splash(); |
| modtronix-com |
22:f63aeb3769b5 | 118 | |
| modtronix-com |
22:f63aeb3769b5 | 119 | protected: |
| modtronix-com |
22:f63aeb3769b5 | 120 | /** Write contents of display buffer to OLED display. |
| modtronix-com |
22:f63aeb3769b5 | 121 | * @return 0 if success, else I2C or SPI error code |
| modtronix-com |
22:f63aeb3769b5 | 122 | */ |
| modtronix-com |
22:f63aeb3769b5 | 123 | virtual uint8_t sendDisplayBuffer() = 0; |
| modtronix-com |
22:f63aeb3769b5 | 124 | |
| modtronix-com |
22:f63aeb3769b5 | 125 | /** Write a block of display data. The 128x64 pixels are divided into: |
| modtronix-com |
22:f63aeb3769b5 | 126 | * - 8 RowBlocks, each with 8 rows. This is 1 page of the SSD1206 |
| modtronix-com |
22:f63aeb3769b5 | 127 | * - 8 ColBlocks, each with 16 columns. |
| modtronix-com |
22:f63aeb3769b5 | 128 | * |
| modtronix-com |
22:f63aeb3769b5 | 129 | * @param rowBlock Value 0-7 indicating what block of 8 rows to write. 0=0-7, |
| modtronix-com |
22:f63aeb3769b5 | 130 | * 1=8-15, ...., 7=56-63 |
| modtronix-com |
22:f63aeb3769b5 | 131 | * @param colBlock Value 0-7 indicating what block of 16 columns to write. 0=0-15, |
| modtronix-com |
22:f63aeb3769b5 | 132 | * 1=16-31, ...., 7=112-127 |
| modtronix-com |
22:f63aeb3769b5 | 133 | * @return 0 if success, else I2C or SPI error code |
| modtronix-com |
22:f63aeb3769b5 | 134 | */ |
| modtronix-com |
22:f63aeb3769b5 | 135 | virtual uint8_t sendDisplayBuffer(uint8_t rowBlock, uint8_t colBlock) = 0; |
| modtronix-com |
22:f63aeb3769b5 | 136 | |
| modtronix-com |
22:f63aeb3769b5 | 137 | public: |
| modtronix-com |
22:f63aeb3769b5 | 138 | // Set whole display as being dirty |
| modtronix-com |
22:f63aeb3769b5 | 139 | virtual void setAllDirty(); |
| modtronix-com |
22:f63aeb3769b5 | 140 | |
| modtronix-com |
22:f63aeb3769b5 | 141 | // Protected Data |
| modtronix-com |
22:f63aeb3769b5 | 142 | protected: |
| modtronix-com |
22:f63aeb3769b5 | 143 | uint8_t colBlock, rowBlock; |
| modtronix-com |
22:f63aeb3769b5 | 144 | |
| modtronix-com |
22:f63aeb3769b5 | 145 | #if (OLED_WIDTH <= 128 ) |
| modtronix-com |
22:f63aeb3769b5 | 146 | uint8_t dirty[OLED_HEIGHT/8]; //Each bit marks block of "8 Rows x 16 Columns". So, a single byte is enough for up to 128col. One byte for each 8 rows. |
| modtronix-com |
22:f63aeb3769b5 | 147 | #elif (OLED_WIDTH <= 256 ) |
| modtronix-com |
22:f63aeb3769b5 | 148 | uint16_t dirty[OLED_HEIGHT/8]; //Each bit marks block of "8 Rows x 16 Columns". One UINT16 = 16x16 = 256 columns. |
| modtronix-com |
22:f63aeb3769b5 | 149 | #endif |
| modtronix-com |
22:f63aeb3769b5 | 150 | |
| modtronix-com |
22:f63aeb3769b5 | 151 | #if (OLED_HAS_RESET==1) |
| modtronix-com |
22:f63aeb3769b5 | 152 | DigitalOut2 rst; |
| modtronix-com |
22:f63aeb3769b5 | 153 | #endif |
| modtronix-com |
22:f63aeb3769b5 | 154 | |
| modtronix-com |
22:f63aeb3769b5 | 155 | // the memory buffer for the LCD |
| modtronix-com |
23:44309099c532 | 156 | #if (OLED_USE_VECTOR==1) |
| modtronix-com |
23:44309099c532 | 157 | std::vector<uint8_t> buffer; |
| modtronix-com |
22:f63aeb3769b5 | 158 | #else |
| modtronix-com |
23:44309099c532 | 159 | uint8_t buffer[OLED_HEIGHT * OLED_WIDTH / 8]; |
| modtronix-com |
22:f63aeb3769b5 | 160 | #endif |
| modtronix-com |
22:f63aeb3769b5 | 161 | }; |
| modtronix-com |
22:f63aeb3769b5 | 162 | |
| modtronix-com |
22:f63aeb3769b5 | 163 | |
| modtronix-com |
22:f63aeb3769b5 | 164 | /** This is the SPI SSD1306 display driver transport class |
| modtronix-com |
22:f63aeb3769b5 | 165 | * |
| modtronix-com |
22:f63aeb3769b5 | 166 | */ |
| modtronix-com |
22:f63aeb3769b5 | 167 | class MxSSD1306_SPI : public MxSSD1306 |
| modtronix-com |
22:f63aeb3769b5 | 168 | { |
| modtronix-com |
22:f63aeb3769b5 | 169 | public: |
| modtronix-com |
22:f63aeb3769b5 | 170 | /** Create a SSD1306 SPI transport display driver instance with the specified DC, RST, and CS pins, as well as the display dimentions |
| modtronix-com |
22:f63aeb3769b5 | 171 | * |
| modtronix-com |
22:f63aeb3769b5 | 172 | * Required parameters |
| modtronix-com |
22:f63aeb3769b5 | 173 | * @param spi - a reference to an initialized SPI object |
| modtronix-com |
22:f63aeb3769b5 | 174 | * @param DC (Data/Command) pin name |
| modtronix-com |
22:f63aeb3769b5 | 175 | * @param RST (Reset) pin name |
| modtronix-com |
22:f63aeb3769b5 | 176 | * @param CS (Chip Select) pin name |
| modtronix-com |
22:f63aeb3769b5 | 177 | * |
| modtronix-com |
22:f63aeb3769b5 | 178 | * Optional parameters |
| modtronix-com |
22:f63aeb3769b5 | 179 | * @param rawHeight - the vertical number of pixels for the display, defaults to 32 |
| modtronix-com |
22:f63aeb3769b5 | 180 | * @param rawWidth - the horizonal number of pixels for the display, defaults to 128 |
| modtronix-com |
22:f63aeb3769b5 | 181 | */ |
| modtronix-com |
22:f63aeb3769b5 | 182 | #if (OLED_HAS_RESET==1) |
| modtronix-com |
22:f63aeb3769b5 | 183 | MxSSD1306_SPI(SPI &spi, PinName DC, PinName RST, PinName CS, uint8_t rawHieght = 32, uint8_t rawWidth = 128) |
| modtronix-com |
22:f63aeb3769b5 | 184 | : MxSSD1306(RST, rawHieght, rawWidth) |
| modtronix-com |
22:f63aeb3769b5 | 185 | #else |
| modtronix-com |
22:f63aeb3769b5 | 186 | MxSSD1306_SPI(SPI &spi, PinName DC, PinName CS, uint8_t rawHieght = 32, uint8_t rawWidth = 128) |
| modtronix-com |
22:f63aeb3769b5 | 187 | : MxSSD1306(rawHieght, rawWidth) |
| modtronix-com |
22:f63aeb3769b5 | 188 | #endif |
| modtronix-com |
22:f63aeb3769b5 | 189 | , cs(CS,true) |
| modtronix-com |
22:f63aeb3769b5 | 190 | , dc(DC,false) |
| modtronix-com |
22:f63aeb3769b5 | 191 | , mspi(spi) |
| modtronix-com |
22:f63aeb3769b5 | 192 | { |
| modtronix-com |
22:f63aeb3769b5 | 193 | begin(); |
| modtronix-com |
22:f63aeb3769b5 | 194 | splash(); |
| modtronix-com |
22:f63aeb3769b5 | 195 | display(); |
| modtronix-com |
22:f63aeb3769b5 | 196 | }; |
| modtronix-com |
22:f63aeb3769b5 | 197 | |
| modtronix-com |
22:f63aeb3769b5 | 198 | /** Send command via SPI |
| modtronix-com |
22:f63aeb3769b5 | 199 | * @param c The command to send |
| modtronix-com |
22:f63aeb3769b5 | 200 | * @return 0 if success, else SPI error |
| modtronix-com |
22:f63aeb3769b5 | 201 | */ |
| modtronix-com |
22:f63aeb3769b5 | 202 | virtual uint8_t command(uint8_t c) |
| modtronix-com |
22:f63aeb3769b5 | 203 | { |
| modtronix-com |
22:f63aeb3769b5 | 204 | cs = 1; |
| modtronix-com |
22:f63aeb3769b5 | 205 | dc = 0; |
| modtronix-com |
22:f63aeb3769b5 | 206 | cs = 0; |
| modtronix-com |
22:f63aeb3769b5 | 207 | mspi.write(c); |
| modtronix-com |
22:f63aeb3769b5 | 208 | cs = 1; |
| modtronix-com |
22:f63aeb3769b5 | 209 | return 0; |
| modtronix-com |
22:f63aeb3769b5 | 210 | }; |
| modtronix-com |
22:f63aeb3769b5 | 211 | |
| modtronix-com |
22:f63aeb3769b5 | 212 | /** Send Data via SPI |
| modtronix-com |
22:f63aeb3769b5 | 213 | * @param c The data to send |
| modtronix-com |
22:f63aeb3769b5 | 214 | * @return 0 if success, else SPI error |
| modtronix-com |
22:f63aeb3769b5 | 215 | */ |
| modtronix-com |
22:f63aeb3769b5 | 216 | virtual uint8_t data(uint8_t c) |
| modtronix-com |
22:f63aeb3769b5 | 217 | { |
| modtronix-com |
22:f63aeb3769b5 | 218 | cs = 1; |
| modtronix-com |
22:f63aeb3769b5 | 219 | dc = 1; |
| modtronix-com |
22:f63aeb3769b5 | 220 | cs = 0; |
| modtronix-com |
22:f63aeb3769b5 | 221 | mspi.write(c); |
| modtronix-com |
22:f63aeb3769b5 | 222 | cs = 1; |
| modtronix-com |
22:f63aeb3769b5 | 223 | return 0; |
| modtronix-com |
22:f63aeb3769b5 | 224 | }; |
| modtronix-com |
22:f63aeb3769b5 | 225 | |
| modtronix-com |
22:f63aeb3769b5 | 226 | protected: |
| modtronix-com |
22:f63aeb3769b5 | 227 | virtual uint8_t sendDisplayBuffer() |
| modtronix-com |
22:f63aeb3769b5 | 228 | { |
| modtronix-com |
22:f63aeb3769b5 | 229 | uint8_t retVal; |
| modtronix-com |
22:f63aeb3769b5 | 230 | cs = 1; |
| modtronix-com |
22:f63aeb3769b5 | 231 | dc = 1; |
| modtronix-com |
22:f63aeb3769b5 | 232 | cs = 0; |
| modtronix-com |
22:f63aeb3769b5 | 233 | |
| modtronix-com |
23:44309099c532 | 234 | #if (OLED_USE_VECTOR==0) |
| modtronix-com |
22:f63aeb3769b5 | 235 | for(uint16_t i=0, q=sizeof(buffer); i<q; i++) { |
| modtronix-com |
22:f63aeb3769b5 | 236 | #else |
| modtronix-com |
22:f63aeb3769b5 | 237 | for(uint16_t i=0, q=buffer.size(); i<q; i++) { |
| modtronix-com |
22:f63aeb3769b5 | 238 | #endif |
| modtronix-com |
22:f63aeb3769b5 | 239 | if((retVal=mspi.write(buffer[i])) != 0) { |
| modtronix-com |
22:f63aeb3769b5 | 240 | cs = 1; |
| modtronix-com |
22:f63aeb3769b5 | 241 | return retVal; |
| modtronix-com |
22:f63aeb3769b5 | 242 | } |
| modtronix-com |
22:f63aeb3769b5 | 243 | } |
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22:f63aeb3769b5 | 244 | |
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22:f63aeb3769b5 | 245 | if(height() == 32) |
| modtronix-com |
22:f63aeb3769b5 | 246 | { |
| modtronix-com |
23:44309099c532 | 247 | #if (OLED_USE_VECTOR==0) |
| modtronix-com |
22:f63aeb3769b5 | 248 | for(uint16_t i=0, q=sizeof(buffer); i<q; i++) { |
| modtronix-com |
22:f63aeb3769b5 | 249 | #else |
| modtronix-com |
22:f63aeb3769b5 | 250 | for(uint16_t i=0, q=buffer.size(); i<q; i++) { |
| modtronix-com |
22:f63aeb3769b5 | 251 | #endif |
| modtronix-com |
22:f63aeb3769b5 | 252 | if((retVal=mspi.write(0)) != 0) { |
| modtronix-com |
22:f63aeb3769b5 | 253 | cs = 1; |
| modtronix-com |
22:f63aeb3769b5 | 254 | return retVal; |
| modtronix-com |
22:f63aeb3769b5 | 255 | } |
| modtronix-com |
22:f63aeb3769b5 | 256 | } |
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22:f63aeb3769b5 | 257 | } |
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22:f63aeb3769b5 | 258 | |
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22:f63aeb3769b5 | 259 | cs = 1; |
| modtronix-com |
22:f63aeb3769b5 | 260 | return 0; |
| modtronix-com |
22:f63aeb3769b5 | 261 | }; |
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22:f63aeb3769b5 | 262 | |
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22:f63aeb3769b5 | 263 | DigitalOut2 cs, dc; |
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22:f63aeb3769b5 | 264 | SPI &mspi; |
| modtronix-com |
22:f63aeb3769b5 | 265 | }; |
| modtronix-com |
22:f63aeb3769b5 | 266 | |
| modtronix-com |
22:f63aeb3769b5 | 267 | /** This is the I2C SSD1306 display driver transport class |
| modtronix-com |
22:f63aeb3769b5 | 268 | * |
| modtronix-com |
22:f63aeb3769b5 | 269 | */ |
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22:f63aeb3769b5 | 270 | class MxSSD1306_I2C : public MxSSD1306 |
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22:f63aeb3769b5 | 271 | { |
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22:f63aeb3769b5 | 272 | public: |
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22:f63aeb3769b5 | 273 | #define SSD_I2C_ADDRESS 0x78 |
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22:f63aeb3769b5 | 274 | /** Create a SSD1306 I2C transport display driver instance with the specified RST pin name, the I2C address, as well as the display dimensions |
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22:f63aeb3769b5 | 275 | * |
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22:f63aeb3769b5 | 276 | * Required parameters |
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22:f63aeb3769b5 | 277 | * @param i2c - A reference to an initialized I2C object |
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22:f63aeb3769b5 | 278 | * @param RST - The Reset pin name |
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22:f63aeb3769b5 | 279 | * |
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22:f63aeb3769b5 | 280 | * Optional parameters |
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22:f63aeb3769b5 | 281 | * @param i2cAddress - The i2c address of the display |
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22:f63aeb3769b5 | 282 | * @param rawHeight - The vertical number of pixels for the display, defaults to 32 |
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22:f63aeb3769b5 | 283 | * @param rawWidth - The horizonal number of pixels for the display, defaults to 128 |
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22:f63aeb3769b5 | 284 | */ |
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22:f63aeb3769b5 | 285 | #if (OLED_HAS_RESET==1) |
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22:f63aeb3769b5 | 286 | Adafruit_SSD1306_I2c(I2C &i2c, PinName RST, uint8_t i2cAddress = SSD_I2C_ADDRESS, uint8_t rawHeight = 32, uint8_t rawWidth = 128) |
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22:f63aeb3769b5 | 287 | : MxSSD1306(RST, rawHeight, rawWidth) |
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22:f63aeb3769b5 | 288 | #else |
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22:f63aeb3769b5 | 289 | MxSSD1306_I2C(I2C &i2c, uint8_t i2cAddress = SSD_I2C_ADDRESS, uint8_t rawHeight = 32, uint8_t rawWidth = 128) |
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22:f63aeb3769b5 | 290 | : MxSSD1306(rawHeight, rawWidth) |
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22:f63aeb3769b5 | 291 | #endif |
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22:f63aeb3769b5 | 292 | , mi2c(i2c) |
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22:f63aeb3769b5 | 293 | , mi2cAddress(i2cAddress) |
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22:f63aeb3769b5 | 294 | { |
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22:f63aeb3769b5 | 295 | begin(); |
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22:f63aeb3769b5 | 296 | splash(); |
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22:f63aeb3769b5 | 297 | display(); |
| modtronix-com |
22:f63aeb3769b5 | 298 | }; |
| modtronix-com |
22:f63aeb3769b5 | 299 | |
| modtronix-com |
22:f63aeb3769b5 | 300 | |
| modtronix-com |
22:f63aeb3769b5 | 301 | /**Constructor without doing any initialization requiring I2C object. Use this constructor if the I2C object must still be |
| modtronix-com |
22:f63aeb3769b5 | 302 | * initialized, or used after startup delay. |
| modtronix-com |
22:f63aeb3769b5 | 303 | * !!!!! IMPORTANT !!!!! |
| modtronix-com |
22:f63aeb3769b5 | 304 | * This constructor must be followed by calling the init() function BEFORE using any other functions! |
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22:f63aeb3769b5 | 305 | * |
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22:f63aeb3769b5 | 306 | * Required parameters |
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22:f63aeb3769b5 | 307 | * @param i2cAddress - The i2c address of the display |
| modtronix-com |
22:f63aeb3769b5 | 308 | * @param i2c - A reference to an initialized I2C object |
| modtronix-com |
22:f63aeb3769b5 | 309 | * |
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22:f63aeb3769b5 | 310 | * Optional parameters |
| modtronix-com |
22:f63aeb3769b5 | 311 | * @param rawHeight - The vertical number of pixels for the display, defaults to 32 |
| modtronix-com |
22:f63aeb3769b5 | 312 | * @param rawWidth - The horizonal number of pixels for the display, defaults to 128 |
| modtronix-com |
22:f63aeb3769b5 | 313 | */ |
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22:f63aeb3769b5 | 314 | MxSSD1306_I2C(uint8_t i2cAddress, I2C &i2c, uint8_t rawHeight = 32, uint8_t rawWidth = 128) |
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22:f63aeb3769b5 | 315 | : MxSSD1306(rawHeight, rawWidth), mi2c(i2c), mi2cAddress(i2cAddress) |
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22:f63aeb3769b5 | 316 | { |
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22:f63aeb3769b5 | 317 | }; |
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22:f63aeb3769b5 | 318 | |
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22:f63aeb3769b5 | 319 | |
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22:f63aeb3769b5 | 320 | /** |
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22:f63aeb3769b5 | 321 | * Initialize with given I2C bus. |
| modtronix-com |
22:f63aeb3769b5 | 322 | * !!!!! IMPORTANT !!!!! |
| modtronix-com |
22:f63aeb3769b5 | 323 | * This function must be called after the Adafruit_SSD1306_I2c(rawHeight, rawWidth) constructor! |
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22:f63aeb3769b5 | 324 | * |
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22:f63aeb3769b5 | 325 | * @param i2c I2C Bus to use |
| modtronix-com |
22:f63aeb3769b5 | 326 | * @return 0 if OK, else error code |
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22:f63aeb3769b5 | 327 | */ |
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22:f63aeb3769b5 | 328 | uint8_t init() |
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22:f63aeb3769b5 | 329 | { |
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22:f63aeb3769b5 | 330 | uint8_t retVal; |
| modtronix-com |
22:f63aeb3769b5 | 331 | if((retVal=begin()) != 0) { |
| modtronix-com |
22:f63aeb3769b5 | 332 | return retVal; //Return error code |
| modtronix-com |
22:f63aeb3769b5 | 333 | } |
| modtronix-com |
22:f63aeb3769b5 | 334 | |
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22:f63aeb3769b5 | 335 | //splash(); |
| modtronix-com |
22:f63aeb3769b5 | 336 | if((retVal=display()) != 0) { |
| modtronix-com |
22:f63aeb3769b5 | 337 | return retVal; //Return error code |
| modtronix-com |
22:f63aeb3769b5 | 338 | } |
| modtronix-com |
22:f63aeb3769b5 | 339 | return 0; |
| modtronix-com |
22:f63aeb3769b5 | 340 | } |
| modtronix-com |
22:f63aeb3769b5 | 341 | |
| modtronix-com |
22:f63aeb3769b5 | 342 | /** Send command via I2C |
| modtronix-com |
22:f63aeb3769b5 | 343 | * @param c The command to send |
| modtronix-com |
22:f63aeb3769b5 | 344 | * @return 0 if success, else I2C error |
| modtronix-com |
22:f63aeb3769b5 | 345 | */ |
| modtronix-com |
22:f63aeb3769b5 | 346 | virtual uint8_t command(uint8_t c) |
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22:f63aeb3769b5 | 347 | { |
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22:f63aeb3769b5 | 348 | char buff[2]; |
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22:f63aeb3769b5 | 349 | buff[0] = 0; // Command Mode |
| modtronix-com |
22:f63aeb3769b5 | 350 | buff[1] = c; |
| modtronix-com |
22:f63aeb3769b5 | 351 | return mi2c.write(mi2cAddress, buff, sizeof(buff)); |
| modtronix-com |
22:f63aeb3769b5 | 352 | } |
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22:f63aeb3769b5 | 353 | |
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22:f63aeb3769b5 | 354 | /** Send Data via I2C |
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22:f63aeb3769b5 | 355 | * @param c The data to send |
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22:f63aeb3769b5 | 356 | * @return 0 if success, else I2C error |
| modtronix-com |
22:f63aeb3769b5 | 357 | */ |
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22:f63aeb3769b5 | 358 | virtual uint8_t data(uint8_t c) |
| modtronix-com |
22:f63aeb3769b5 | 359 | { |
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22:f63aeb3769b5 | 360 | char buff[2]; |
| modtronix-com |
22:f63aeb3769b5 | 361 | buff[0] = 0x40; // Data Mode |
| modtronix-com |
22:f63aeb3769b5 | 362 | buff[1] = c; |
| modtronix-com |
22:f63aeb3769b5 | 363 | return mi2c.write(mi2cAddress, buff, sizeof(buff)); |
| modtronix-com |
22:f63aeb3769b5 | 364 | }; |
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22:f63aeb3769b5 | 365 | |
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22:f63aeb3769b5 | 366 | protected: |
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22:f63aeb3769b5 | 367 | virtual uint8_t sendDisplayBuffer() |
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22:f63aeb3769b5 | 368 | { |
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22:f63aeb3769b5 | 369 | char buff[17]; |
| modtronix-com |
22:f63aeb3769b5 | 370 | buff[0] = 0x40; // Data Mode |
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22:f63aeb3769b5 | 371 | |
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22:f63aeb3769b5 | 372 | // send display buffer in 16 byte chunks |
| modtronix-com |
23:44309099c532 | 373 | #if (OLED_USE_VECTOR==0) |
| modtronix-com |
22:f63aeb3769b5 | 374 | for(uint16_t i=0, q=sizeof(buffer); i<q; i+=16 ) { |
| modtronix-com |
22:f63aeb3769b5 | 375 | #else |
| modtronix-com |
22:f63aeb3769b5 | 376 | for(uint16_t i=0, q=buffer.size(); i<q; i+=16 ) { |
| modtronix-com |
22:f63aeb3769b5 | 377 | #endif |
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22:f63aeb3769b5 | 378 | uint8_t retVal; |
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22:f63aeb3769b5 | 379 | uint8_t x; |
| modtronix-com |
22:f63aeb3769b5 | 380 | |
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22:f63aeb3769b5 | 381 | for(x=1; x<sizeof(buff); x++) { |
| modtronix-com |
22:f63aeb3769b5 | 382 | buff[x] = buffer[i+x-1]; |
| modtronix-com |
22:f63aeb3769b5 | 383 | } |
| modtronix-com |
22:f63aeb3769b5 | 384 | |
| modtronix-com |
22:f63aeb3769b5 | 385 | if((retVal=mi2c.write(mi2cAddress, buff, sizeof(buff))) != 0) { |
| modtronix-com |
22:f63aeb3769b5 | 386 | return retVal; //Return error code |
| modtronix-com |
22:f63aeb3769b5 | 387 | } |
| modtronix-com |
22:f63aeb3769b5 | 388 | } |
| modtronix-com |
22:f63aeb3769b5 | 389 | return 0; |
| modtronix-com |
22:f63aeb3769b5 | 390 | }; |
| modtronix-com |
22:f63aeb3769b5 | 391 | |
| modtronix-com |
22:f63aeb3769b5 | 392 | /** Write a block of display data. The 128x64 pixels are divided into: |
| modtronix-com |
22:f63aeb3769b5 | 393 | * - 8 RowBlocks, each with 8 rows. This is 1 page of the SSD1206 |
| modtronix-com |
22:f63aeb3769b5 | 394 | * - 8 ColBlocks, each with 16 columns. |
| modtronix-com |
22:f63aeb3769b5 | 395 | * |
| modtronix-com |
22:f63aeb3769b5 | 396 | * @param rowBlock Value 0-7 indicating what block of 8 rows to write. 0=0-7, |
| modtronix-com |
22:f63aeb3769b5 | 397 | * 1=8-15, ...., 7=56-63 |
| modtronix-com |
22:f63aeb3769b5 | 398 | * @param colBlock Value 0-7 indicating what block of 16 columns to write. 0=0-15, |
| modtronix-com |
22:f63aeb3769b5 | 399 | * 1=16-31, ...., 7=112-127 |
| modtronix-com |
22:f63aeb3769b5 | 400 | * @return 0 if success, else I2C or SPI error code |
| modtronix-com |
22:f63aeb3769b5 | 401 | */ |
| modtronix-com |
22:f63aeb3769b5 | 402 | uint8_t sendDisplayBuffer(uint8_t rowBlock, uint8_t colBlock) { |
| modtronix-com |
22:f63aeb3769b5 | 403 | uint8_t retVal; |
| modtronix-com |
22:f63aeb3769b5 | 404 | int idxBuffer; |
| modtronix-com |
22:f63aeb3769b5 | 405 | char buff[17]; |
| modtronix-com |
22:f63aeb3769b5 | 406 | |
| modtronix-com |
22:f63aeb3769b5 | 407 | buff[0] = 0x40; // Data Mode |
| modtronix-com |
22:f63aeb3769b5 | 408 | |
| modtronix-com |
22:f63aeb3769b5 | 409 | //Each byte of buffer contains 8pixels for single column, and 8 rows. For example: |
| modtronix-com |
22:f63aeb3769b5 | 410 | //buffer[0] contains row 0-7 for column 0 |
| modtronix-com |
22:f63aeb3769b5 | 411 | //buffer[1] contains row 0-7 for column 1 |
| modtronix-com |
22:f63aeb3769b5 | 412 | idxBuffer = (rowBlock*128) + (colBlock*16); |
| modtronix-com |
22:f63aeb3769b5 | 413 | |
| modtronix-com |
22:f63aeb3769b5 | 414 | // Copy requested "row block" and "column block" |
| modtronix-com |
22:f63aeb3769b5 | 415 | for(uint16_t i=0; i<16; i++) { |
| modtronix-com |
22:f63aeb3769b5 | 416 | buff[i+1] = buffer[idxBuffer+i]; |
| modtronix-com |
22:f63aeb3769b5 | 417 | } |
| modtronix-com |
22:f63aeb3769b5 | 418 | |
| modtronix-com |
22:f63aeb3769b5 | 419 | //Write all display data |
| modtronix-com |
22:f63aeb3769b5 | 420 | if((retVal=mi2c.write(mi2cAddress, buff, 17)) != 0) { |
| modtronix-com |
22:f63aeb3769b5 | 421 | return retVal; //Return error code |
| modtronix-com |
22:f63aeb3769b5 | 422 | } |
| modtronix-com |
22:f63aeb3769b5 | 423 | |
| modtronix-com |
22:f63aeb3769b5 | 424 | return 0; |
| modtronix-com |
22:f63aeb3769b5 | 425 | } |
| modtronix-com |
22:f63aeb3769b5 | 426 | |
| modtronix-com |
22:f63aeb3769b5 | 427 | I2C &mi2c; |
| modtronix-com |
22:f63aeb3769b5 | 428 | uint8_t mi2cAddress; |
| modtronix-com |
22:f63aeb3769b5 | 429 | }; |
| modtronix-com |
22:f63aeb3769b5 | 430 | |
| modtronix-com |
22:f63aeb3769b5 | 431 | #endif |