An mbed library for 4D Systems uOLED-160-G1
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Diff: OLED160G1.cpp
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/OLED160G1.cpp Sun Dec 19 16:42:32 2010 +0000 @@ -0,0 +1,281 @@ +/** + * mbed library for 4D Systems uOLED-160-G1 + * + * + * Copyright (c) 2010 Steven Blair + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#include "mbed.h" +#include "OLED160G1.h" + + +OLED160G1::OLED160G1(PinName serialTx, PinName serialRx, PinName resetPin) : s(serialTx, serialRx), reset(resetPin) { + s.baud(OLED_BAUDRATE); + + while (s.readable()) { + s.getc(); + } + + locate(0, 0); + setFontColor(0xFFFF); + _fontSize = OLED_FONT5X7; +} + +void OLED160G1::resetDisplay() { + reset = 0; + wait_ms(200); + reset = 1; + wait_ms(200); +} + +void OLED160G1::getResponse() { + char response = OLED_NAK; + lastCount = 0; + NAKCount = 0; + + while (!s.readable() || response == OLED_NAK) { + wait_ms(1); + lastCount++; + if (s.readable()) { + response = s.getc(); // Read response + if (response == OLED_ACK) { + return; + } + else if (response == OLED_NAK) { + NAKCount++; + } + } + } +} + +// Initialise OLED display. You must first activate serial comunication! +void OLED160G1::init() { + resetDisplay(); + + wait_ms(OLED_INIT_DELAY); // wait for initialisation + + s.putc(OLED_DETECT_BAUDRATE); // send byte for OLED to autodetect baudrate + + getResponse(); +} + +int OLED160G1::toRGB(int red, int green, int blue) { + int outR = ((red * 31) / 255); + int outG = ((green * 63) / 255); + int outB = ((blue * 31) / 255); + + return (outR << 11) | (outG << 5) | outB; +} + +void OLED160G1::eraseScreen() { + s.putc(OLED_CLEAR); + + wait(1); // TODO: why needed? + + getResponse(); + + _row = 0; + _column = 0; +} + +void OLED160G1::drawPixel(char x, char y, int color) { + s.putc(OLED_PUTPIXEL); + s.putc(x); + s.putc(y); + + s.putc(color >> 8); // MSB + s.putc(color & 0xFF); // LSB + + getResponse(); +} + +void OLED160G1::drawLine(char x1, char y1, char x2, char y2, int color) { + s.putc(OLED_LINE); // Line + + s.putc(x1); + s.putc(y1); + s.putc(x2); + s.putc(y2); + + s.putc(color >> 8); // MSB + s.putc(color & 0xFF); // LSB + + getResponse(); +} + +void OLED160G1::drawRectangle(char x, char y, char width, char height, int color) { + s.putc(OLED_RECTANGLE); + + s.putc(x); + s.putc(y); + + s.putc(x+width); + s.putc(y+height); + + s.putc(color >> 8); // MSB + s.putc(color & 0xFF); // LSB + + // + // if (filled == 1) { printByte(0x01); } // Filled + //else { printByte(0x00); } // Outline + // + getResponse(); +} + +void OLED160G1::drawCircle(char x, char y, char radius, int color) { + s.putc(OLED_CIRCLE); + + s.putc(x); + s.putc(y); + s.putc(radius); + + s.putc(color >> 8); // MSB + s.putc(color & 0xFF); // LSB + + getResponse(); +} + +void OLED160G1::setFontSize(char fontSize) { + s.putc(OLED_SETFONTSIZE); + s.putc(fontSize); + _fontSize = fontSize; + + getResponse(); +} + +void OLED160G1::setFontColor(int fontColor) { + _fontColor = fontColor; +} + +void OLED160G1::setPenSize(char penSize) { + s.putc(OLED_PEN_SIZE); + + s.putc(penSize); + + _penSize = penSize; + + getResponse(); +} + +void OLED160G1::setTextBackgroundType(char textBackgroundType) { + s.putc(OLED_SET_TEXT_BACKGROUND_TYPE); + s.putc(textBackgroundType); + + getResponse(); +} + +void OLED160G1::setBackgroundColor(int color) { + s.putc(OLED_SET_BACKGROUND_COLOR); + + s.putc(color >> 8); // MSB + s.putc(color & 0xFF); // LSB + + getResponse(); +} + +void OLED160G1::drawText(char column, char row, char font_size, char *mytext, int color) { + s.putc(OLED_TEXT); + + // Adjust to center of the screen (26 Columns at font size 0) + //int newCol = 13 - (strlen(mytext)/2); + //printByte(newCol); // column + s.putc(column); // column + + s.putc(row); // row + s.putc(font_size); // font size (0 = 5x7 font, 1 = 8x8 font, 2 = 8x12 font) + + s.putc(color >> 8); // MSB + s.putc(color & 0xFF); // LSB + + for (int i = 0; i < strlen(mytext); i++) { + s.putc(mytext[i]); // character to write + } + s.putc(0x00); // string terminator (always 0x00) + + getResponse(); +} + +void OLED160G1::drawSingleChar(char column, char row, char theChar, int color) { + s.putc(OLED_TEXTFORMATED); + + s.putc(theChar); + s.putc(column); + s.putc(row); + + s.putc(color >> 8); // MSB + s.putc(color & 0xFF); // LSB + + getResponse(); +} + +void OLED160G1::displayControl(char mode, char value) { + s.putc(OLED_COMMAND_CONTROL); + + s.putc(mode); + s.putc(value); + + getResponse(); +} + +char OLED160G1::getPenSize() { + return _penSize; +} + +int OLED160G1::_putc(int value) { + if (value == '\n') { + _column = 0; + _row++; + if(_row >= rows()) { + _row = 0; + } + } else { + drawSingleChar(_column, _row, value, _fontColor); + + wait_ms(1); //TODO: why is this needed? + + _column++; + if (_column >= columns()) { + _column = 0; + _row++; + if(_row >= rows()) { + _row = 0; + } + } + } + return value; +} + +int OLED160G1::_getc() { + return -1; +} + +void OLED160G1::locate(int column, int row) { + _column = column; + _row = row; +} + +int OLED160G1::rows() { + return 16; +} + +int OLED160G1::columns() { + return 26; +} \ No newline at end of file