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This is a code which generates the various zoomed versions of an image stored in an SD card and displays it on a Nokia LCD based on the keys pressed on a capacitive touch pad.
Dependencies: FatFileSystem mbed
Fork of Lab3 by
NokiaLCD/NokiaLCD.cpp
- Committer:
- XkLi
- Date:
- 2011-10-11
- Revision:
- 0:c546b51ecf0b
File content as of revision 0:c546b51ecf0b:
/* mbed Nokia LCD Library * Copyright (c) 2007-2010, sford */ #include "NokiaLCD.h" #include "mbed.h" #define NOKIALCD_ROWS 16 #define NOKIALCD_COLS 16 #define NOKIALCD_WIDTH 130 #define NOKIALCD_HEIGHT 130 #define NOKIALCD_FREQUENCY 5000000 NokiaLCD::NokiaLCD(PinName mosi, PinName sclk, PinName cs, PinName rst, LCDType type) : _spi(mosi, NC, sclk) , _rst(rst) , _cs(cs) { _type = type; _row = 0; _column = 0; _foreground = 0x00FFFFFF; _background = 0x00000000; reset(); } void NokiaLCD::reset() { // setup the SPI interface and bring display out of reset _cs = 1; _rst = 0; _spi.format(9); _spi.frequency(NOKIALCD_FREQUENCY); wait_ms(1); _rst = 1; wait_ms(1); _cs = 0; switch (_type) { case LCD6100: command(0xCA); // display control data(0); data(32); data(0); command(0xBB); data(1); command(0xD1); // oscillator on command(0x94); // sleep out command(0x20); // power control data(0x0F); command(0xA7); // invert display command(0x81); // Voltage control data(39); // contrast setting: 0..63 data(3); // resistance ratio wait_ms(1); command(0xBC); data(0); data(1); data(4); command(0xAF); // turn on the display break; case LCD6610: command(0xCA); // display control data(0); data(31); data(0); command(0xBB); data(1); command(0xD1); // oscillator on command(0x94); // sleep out command(0x20); // power control data(0x0F); command(0xA7); // invert display command(0x81); // Voltage control data(39); // contrast setting: 0..63 data(3); // resistance ratio wait_ms(1); command(0xBC); data(0); data(0); data(2); command(0xAF); // turn on the display break; case PCF8833: command(0x11); // sleep out command(0x3A); // column mode data(0x05); command(0x36); // madctl data(0x60); // vertical RAM, flip x command(0x25); // setcon data(0x30);// contrast 0x30 wait_ms(2); command(0x29);//DISPON command(0x03);//BSTRON break; } _cs = 1; cls(); } void NokiaLCD::command(int value) { _spi.write(value & 0xFF); } void NokiaLCD::data(int value) { _spi.write(value | 0x100); } void NokiaLCD::_window(int x, int y, int width, int height) { int x1 = x + 0; int y1 = y + 0; int x2 = x1 + width - 1; int y2 = y1 + height - 1; switch (_type) { case LCD6100: case LCD6610: command(0x15); // column data(x1); data(x2); command(0x75); // row data(y1); data(y2); command(0x5C); // start write to ram break; case PCF8833: command(0x2A); // column data(x1); data(x2); command(0x2B); // row data(y1); data(y2); command(0x2C); // start write to ram break; } } void NokiaLCD::_putp(int colour) { int gr = ((colour >> 20) & 0x0F) | ((colour >> 8 ) & 0xF0); int nb = ((colour >> 4 ) & 0x0F); data(nb); data(gr); } const unsigned char FONT8x8[97][8] = { 0x08,0x08,0x08,0x00,0x00,0x00,0x00,0x00, // columns, rows, num_bytes_per_char 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, // space 0x20 0x30,0x78,0x78,0x30,0x30,0x00,0x30,0x00, // ! 0x6C,0x6C,0x6C,0x00,0x00,0x00,0x00,0x00, // " 0x6C,0x6C,0xFE,0x6C,0xFE,0x6C,0x6C,0x00, // # 0x18,0x3E,0x60,0x3C,0x06,0x7C,0x18,0x00, // $ 0x00,0x63,0x66,0x0C,0x18,0x33,0x63,0x00, // % 0x1C,0x36,0x1C,0x3B,0x6E,0x66,0x3B,0x00, // & 0x30,0x30,0x60,0x00,0x00,0x00,0x00,0x00, // ' 0x0C,0x18,0x30,0x30,0x30,0x18,0x0C,0x00, // ( 0x30,0x18,0x0C,0x0C,0x0C,0x18,0x30,0x00, // ) 0x00,0x66,0x3C,0xFF,0x3C,0x66,0x00,0x00, // * 0x00,0x30,0x30,0xFC,0x30,0x30,0x00,0x00, // + 0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x30, // , 0x00,0x00,0x00,0x7E,0x00,0x00,0x00,0x00, // - 0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x00, // . 0x03,0x06,0x0C,0x18,0x30,0x60,0x40,0x00, // / (forward slash) 0x3E,0x63,0x63,0x6B,0x63,0x63,0x3E,0x00, // 0 0x30 0x18,0x38,0x58,0x18,0x18,0x18,0x7E,0x00, // 1 0x3C,0x66,0x06,0x1C,0x30,0x66,0x7E,0x00, // 2 0x3C,0x66,0x06,0x1C,0x06,0x66,0x3C,0x00, // 3 0x0E,0x1E,0x36,0x66,0x7F,0x06,0x0F,0x00, // 4 0x7E,0x60,0x7C,0x06,0x06,0x66,0x3C,0x00, // 5 0x1C,0x30,0x60,0x7C,0x66,0x66,0x3C,0x00, // 6 0x7E,0x66,0x06,0x0C,0x18,0x18,0x18,0x00, // 7 0x3C,0x66,0x66,0x3C,0x66,0x66,0x3C,0x00, // 8 0x3C,0x66,0x66,0x3E,0x06,0x0C,0x38,0x00, // 9 0x00,0x18,0x18,0x00,0x00,0x18,0x18,0x00, // : 0x00,0x18,0x18,0x00,0x00,0x18,0x18,0x30, // ; 0x0C,0x18,0x30,0x60,0x30,0x18,0x0C,0x00, // < 0x00,0x00,0x7E,0x00,0x00,0x7E,0x00,0x00, // = 0x30,0x18,0x0C,0x06,0x0C,0x18,0x30,0x00, // > 0x3C,0x66,0x06,0x0C,0x18,0x00,0x18,0x00, // ? 0x3E,0x63,0x6F,0x69,0x6F,0x60,0x3E,0x00, // @ 0x40 0x18,0x3C,0x66,0x66,0x7E,0x66,0x66,0x00, // A 0x7E,0x33,0x33,0x3E,0x33,0x33,0x7E,0x00, // B 0x1E,0x33,0x60,0x60,0x60,0x33,0x1E,0x00, // C 0x7C,0x36,0x33,0x33,0x33,0x36,0x7C,0x00, // D 0x7F,0x31,0x34,0x3C,0x34,0x31,0x7F,0x00, // E 0x7F,0x31,0x34,0x3C,0x34,0x30,0x78,0x00, // F 0x1E,0x33,0x60,0x60,0x67,0x33,0x1F,0x00, // G 0x66,0x66,0x66,0x7E,0x66,0x66,0x66,0x00, // H 0x3C,0x18,0x18,0x18,0x18,0x18,0x3C,0x00, // I 0x0F,0x06,0x06,0x06,0x66,0x66,0x3C,0x00, // J 0x73,0x33,0x36,0x3C,0x36,0x33,0x73,0x00, // K 0x78,0x30,0x30,0x30,0x31,0x33,0x7F,0x00, // L 0x63,0x77,0x7F,0x7F,0x6B,0x63,0x63,0x00, // M 0x63,0x73,0x7B,0x6F,0x67,0x63,0x63,0x00, // N 0x3E,0x63,0x63,0x63,0x63,0x63,0x3E,0x00, // O 0x7E,0x33,0x33,0x3E,0x30,0x30,0x78,0x00, // P 0x50 0x3C,0x66,0x66,0x66,0x6E,0x3C,0x0E,0x00, // Q 0x7E,0x33,0x33,0x3E,0x36,0x33,0x73,0x00, // R 0x3C,0x66,0x30,0x18,0x0C,0x66,0x3C,0x00, // S 0x7E,0x5A,0x18,0x18,0x18,0x18,0x3C,0x00, // T 0x66,0x66,0x66,0x66,0x66,0x66,0x7E,0x00, // U 0x66,0x66,0x66,0x66,0x66,0x3C,0x18,0x00, // V 0x63,0x63,0x63,0x6B,0x7F,0x77,0x63,0x00, // W 0x63,0x63,0x36,0x1C,0x1C,0x36,0x63,0x00, // X 0x66,0x66,0x66,0x3C,0x18,0x18,0x3C,0x00, // Y 0x7F,0x63,0x46,0x0C,0x19,0x33,0x7F,0x00, // Z 0x3C,0x30,0x30,0x30,0x30,0x30,0x3C,0x00, // [ 0x60,0x30,0x18,0x0C,0x06,0x03,0x01,0x00, // \ (back slash) 0x3C,0x0C,0x0C,0x0C,0x0C,0x0C,0x3C,0x00, // ] 0x08,0x1C,0x36,0x63,0x00,0x00,0x00,0x00, // ^ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF, // _ 0x18,0x18,0x0C,0x00,0x00,0x00,0x00,0x00, // ` 0x60 0x00,0x00,0x3C,0x06,0x3E,0x66,0x3B,0x00, // a 0x70,0x30,0x3E,0x33,0x33,0x33,0x6E,0x00, // b 0x00,0x00,0x3C,0x66,0x60,0x66,0x3C,0x00, // c 0x0E,0x06,0x3E,0x66,0x66,0x66,0x3B,0x00, // d 0x00,0x00,0x3C,0x66,0x7E,0x60,0x3C,0x00, // e 0x1C,0x36,0x30,0x78,0x30,0x30,0x78,0x00, // f 0x00,0x00,0x3B,0x66,0x66,0x3E,0x06,0x7C, // g 0x70,0x30,0x36,0x3B,0x33,0x33,0x73,0x00, // h 0x18,0x00,0x38,0x18,0x18,0x18,0x3C,0x00, // i 0x06,0x00,0x06,0x06,0x06,0x66,0x66,0x3C, // j 0x70,0x30,0x33,0x36,0x3C,0x36,0x73,0x00, // k 0x38,0x18,0x18,0x18,0x18,0x18,0x3C,0x00, // l 0x00,0x00,0x66,0x7F,0x7F,0x6B,0x63,0x00, // m 0x00,0x00,0x7C,0x66,0x66,0x66,0x66,0x00, // n 0x00,0x00,0x3C,0x66,0x66,0x66,0x3C,0x00, // o 0x00,0x00,0x6E,0x33,0x33,0x3E,0x30,0x78, // p 0x00,0x00,0x3B,0x66,0x66,0x3E,0x06,0x0F, // q 0x00,0x00,0x6E,0x3B,0x33,0x30,0x78,0x00, // r 0x00,0x00,0x3E,0x60,0x3C,0x06,0x7C,0x00, // s 0x08,0x18,0x3E,0x18,0x18,0x1A,0x0C,0x00, // t 0x00,0x00,0x66,0x66,0x66,0x66,0x3B,0x00, // u 0x00,0x00,0x66,0x66,0x66,0x3C,0x18,0x00, // v 0x00,0x00,0x63,0x6B,0x7F,0x7F,0x36,0x00, // w 0x00,0x00,0x63,0x36,0x1C,0x36,0x63,0x00, // x 0x00,0x00,0x66,0x66,0x66,0x3E,0x06,0x7C, // y 0x00,0x00,0x7E,0x4C,0x18,0x32,0x7E,0x00, // z 0x0E,0x18,0x18,0x70,0x18,0x18,0x0E,0x00, // { 0x0C,0x0C,0x0C,0x00,0x0C,0x0C,0x0C,0x00, // | 0x70,0x18,0x18,0x0E,0x18,0x18,0x70,0x00, // } 0x3B,0x6E,0x00,0x00,0x00,0x00,0x00,0x00, // ~ 0x1C,0x36,0x36,0x1C,0x00,0x00,0x00,0x00 }; // DEL void NokiaLCD::locate(int column, int row) { _column = column; _row = row; } void NokiaLCD::newline() { _column = 0; _row++; if (_row >= _rows) { _row = 0; } } int NokiaLCD::_putc(int value) { int x = _column * 8; // FIXME: Char sizes int y = _row * 8; bitblit(x + 1, y + 1, 8, 8, (char*)&(FONT8x8[value - 0x1F][0])); _column++; if (_column >= NOKIALCD_COLS) { _row++; _column = 0; } if (_row >= NOKIALCD_ROWS) { _row = 0; } return value; } void NokiaLCD::cls() { fill(0, 0, NOKIALCD_WIDTH, NOKIALCD_HEIGHT, _background); _row = 0; _column = 0; } void NokiaLCD::window(int x, int y, int width, int height) { _cs = 0; _window(x, y, width, height); _cs = 1; } void NokiaLCD::putp(int colour) { _cs = 0; _putp(colour); _cs = 1; } void NokiaLCD::pixel(int x, int y, int colour) { _cs = 0; _window(x, y, 1, 1); switch (_type) { case LCD6100: case PCF8833: _putp(colour); break; case LCD6610: int r4 = (colour >> (16 + 4)) & 0xF; int g4 = (colour >> (8 + 4)) & 0xF; int b4 = (colour >> (0 + 4)) & 0xF; int d1 = (r4 << 4) | g4; int d2 = (b4 << 4) | r4; int d3 = (g4 << 4) | b4; data(d1); data(d2); data(d3); break; } _cs = 1; } void NokiaLCD::fill(int x, int y, int width, int height, int colour) { _cs = 0; _window(x, y, width, height); switch (_type) { case LCD6100: case PCF8833: for (int i=0; i<width*height; i++) { _putp(colour); } break; case LCD6610: for (int i=0; i<width*height/2; i++) { int r4 = (colour >> (16 + 4)) & 0xF; int g4 = (colour >> (8 + 4)) & 0xF; int b4 = (colour >> (0 + 4)) & 0xF; int d1 = (r4 << 4) | g4; int d2 = (b4 << 4) | r4; int d3 = (g4 << 4) | b4; data(d1); data(d2); data(d3); } break; } _window(0, 0, NOKIALCD_WIDTH, NOKIALCD_HEIGHT); _cs = 1; } void NokiaLCD::blit(int x, int y, int width, int height, const int* colour) { _cs = 0; _window(x, y, width, height); switch (_type) { case LCD6100: case PCF8833: for (int i=0; i<width*height; i++) { _putp(colour[i]); } break; case LCD6610: for (int i=0; i<width*height/2; i++) { int r41 = (colour[i*2] >> (16 + 4)) & 0xF; int g41 = (colour[i*2] >> (8 + 4)) & 0xF; int b41 = (colour[i*2] >> (0 + 4)) & 0xF; int r42 = (colour[i*2+1] >> (16 + 4)) & 0xF; int g42 = (colour[i*2+1] >> (8 + 4)) & 0xF; int b42 = (colour[i*2+1] >> (0 + 4)) & 0xF; int d1 = (r41 << 4) | g41; int d2 = (b41 << 4) | r42; int d3 = (g42 << 4) | b42; data(d1); data(d2); data(d3); } break; } _window(0, 0, NOKIALCD_WIDTH, NOKIALCD_HEIGHT); _cs = 1; } void NokiaLCD::bitblit(int x, int y, int width, int height, const char* bitstream) { _cs = 0; _window(x, y, width, height); switch (_type) { case LCD6100: case PCF8833: for (int i=0; i<height*width; i++) { int byte = i / 8; int bit = i % 8; int colour = ((bitstream[byte] << bit) & 0x80) ? _foreground : _background; _putp(colour); } break; case LCD6610: for(int i=0; i<height*width/2; i++) { int byte1 = (i*2) / 8; int bit1 = (i*2) % 8; int colour1 = ((bitstream[byte1] << bit1) & 0x80) ? _foreground : _background; int byte2 = (i*2+1) / 8; int bit2 = (i*2+1) % 8; int colour2 = ((bitstream[byte2] << bit2) & 0x80) ? _foreground : _background; int r41 = (colour1 >> (16 + 4)) & 0xF; int g41 = (colour1 >> (8 + 4)) & 0xF; int b41 = (colour1 >> (0 + 4)) & 0xF; int r42 = (colour2 >> (16 + 4)) & 0xF; int g42 = (colour2 >> (8 + 4)) & 0xF; int b42 = (colour2 >> (0 + 4)) & 0xF; int d1 = (r41 << 4) | g41; int d2 = (b41 << 4) | r42; int d3 = (g42 << 4) | b42; data(d1); data(d2); data(d3); } break; } _window(0, 0, _width, _height); _cs = 1; } void NokiaLCD::foreground(int c) { _foreground = c; } void NokiaLCD::background(int c) { _background = c; } int NokiaLCD::width() { return NOKIALCD_WIDTH; } int NokiaLCD::height() { return NOKIALCD_HEIGHT; } int NokiaLCD::columns() { return NOKIALCD_COLS; } int NokiaLCD::rows() { return NOKIALCD_ROWS; }