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This project utilizes mbed's networking features to display live traffic updates on the Nokia LCD using the MapQuest API's Traffic Web Service.
Dependencies: NetServices-Traffic mbed spxml
Revision 0:88e082c58797, committed 2013-03-06
- Comitter:
- rrajan8
- Date:
- Wed Mar 06 19:15:22 2013 +0000
- Commit message:
- This project utilizes mbed's networking features to display live traffic updates on the Nokia LCD using the MapQuest API's Traffic Web Service.
Changed in this revision
diff -r 000000000000 -r 88e082c58797 NetServices.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/NetServices.lib Wed Mar 06 19:15:22 2013 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/rrajan8/code/NetServices-Traffic/#92b57208ab99
diff -r 000000000000 -r 88e082c58797 NokiaLCD/NokiaLCD.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/NokiaLCD/NokiaLCD.cpp Wed Mar 06 19:15:22 2013 +0000 @@ -0,0 +1,459 @@ +/* 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 132 +#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(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(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; +}
diff -r 000000000000 -r 88e082c58797 NokiaLCD/NokiaLCD.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/NokiaLCD/NokiaLCD.h Wed Mar 06 19:15:22 2013 +0000 @@ -0,0 +1,151 @@ +/* mbed NokiaLCD Library, for a 130x130 Nokia colour LCD + * Copyright (c) 2007-2010, sford + * + * 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. + */ + +#ifndef MBED_NOKIALCD_H +#define MBED_NOKIALCD_H + +#include "mbed.h" + +/** An interface for the 130x130 Nokia Mobile phone screens + * + * @code + * #include "mbed.h" + * #include "NokiaLCD.h" + * + * NokiaLCD lcd(p5, p7, p8, p9, NokiaLCD::6610); // mosi, sclk, cs, rst, type + * + * int main() { + * lcd.printf("Hello World!"); + * } + * @endcode + */ +class NokiaLCD : public Stream { + +public: + /** LCD panel format */ + enum LCDType { + LCD6100 /**< Nokia 6100, as found on sparkfun board (default) */ + , LCD6610 /**< Nokia 6610, as found on olimex board */ + , PCF8833 + }; + + /** Create and Nokia LCD interface, using a SPI and two DigitalOut interfaces + * + * @param mosi SPI data out + * @param sclk SPI clock + * @param cs Chip Select (DigitalOut) + * @param rst Reset (DigitalOut) + * @param type The LCDType to select driver chip variants + */ + NokiaLCD(PinName mosi, PinName sclk, PinName cs, PinName rst, LCDType type = LCD6100); + +#if DOXYGEN_ONLY + /** Write a character to the LCD + * + * @param c The character to write to the display + */ + int putc(int c); + + /** Write a formated string to the LCD + * + * @param format A printf-style format string, followed by the + * variables to use in formating the string. + */ + int printf(const char* format, ...); +#endif + + /** Locate to a screen column and row + * + * @param column The horizontal position from the left, indexed from 0 + * @param row The vertical position from the top, indexed from 0 + */ + void locate(int column, int row); + + /** Clear the screen and locate to 0,0 */ + void cls(); + + /** Set a pixel on te screen + * + * @param x horizontal position from left + * @param y vertical position from top + * @param colour 24-bit colour in format 0x00RRGGBB + */ + void pixel(int x, int y, int colour); + + /** Fill an area of the screen + * + * @param x horizontal position from left + * @param y vertical position from top + * @param width width in pixels + * @param height height in pixels + * @param colour 24-bit colour in format 0x00RRGGBB + */ + void fill(int x, int y, int width, int height, int colour); + + void blit(int x, int y, int width, int height, const int* colour); + void bitblit(int x, int y, int width, int height, const char* bitstream); + + int width(); + int height(); + int columns(); + int rows(); + + void reset(); + + /** Set the foreground colour + * + * @param c 24-bit colour + */ + void foreground(int c); + + /** Set the background colour + * + * @param c 24-bit colour + */ + void background(int c); + +protected: + virtual void _window(int x, int y, int width, int height); + virtual void _putp(int colour); + + void command(int value); + void data(int value); + + void newline(); + virtual int _putc(int c); + virtual int _getc() { + return 0; + } + void putp(int v); + void window(int x, int y, int width, int height); + + SPI _spi; + DigitalOut _rst; + DigitalOut _cs; + + LCDType _type; + int _row, _column, _rows, _columns, _foreground, _background, _width, _height; +}; + +#endif + +
diff -r 000000000000 -r 88e082c58797 main.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Wed Mar 06 19:15:22 2013 +0000 @@ -0,0 +1,79 @@ +#include "mbed.h" +#include "EthernetNetIf.h" +#include "HTTPClient.h" +#include "NokiaLCD.h" +//Mapquest traffic RSS Feed - get web page with XML +// displays Road diversions/closures on LCD from XML "<fullDesc>.... text...</fullDesc>" +NokiaLCD lcd(p5, p7, p8, p9, NokiaLCD::LCD6610); // mosi, sclk, cs, rst, type +EthernetNetIf eth; +HTTPClient http; +HTTPResult result; +bool completed = false; + +void request_callback(HTTPResult r) { + result = r; + completed = true; +} + +int main() { + char *tstartXML = "<fullDesc>"; //RSS XML start title + char *tendXML = "</fullDesc>"; //RSS XML end title + char *tsptr; //Start Pointer + char *teptr; //End Pointer + int i=0,j=0; + lcd.cls(); //Clear LCD Screen + lcd.locate(0,1); + lcd.printf("net setup"); + EthernetErr ethErr = eth.setup(); + if (ethErr) { + lcd.printf("net error"); + return -1; + } + lcd.locate(0,2); + lcd.printf("net ok"); + wait(1); + lcd.cls(); //Clear LCD Screen + HTTPStream stream; + char BigBuf[2048 + 1] = {0}; + stream.readNext((byte*)BigBuf, 2048); //Point to buffer for the first read + //Get web page with XML + HTTPResult r = http.get("http://www.mapquestapi.com/traffic/v1/incidents?key=Fmjtd%7Cluub2l6z2u%2C75%3Do5-96twuy&callback=handleIncidentsResponse&boundingBox=33.977698,-84.662833,33.520957,-84.113516&filters=construction,incidents&inFormat=kvp&outFormat=xml", &stream, request_callback); + while (!completed) { + Net::poll(); // Polls the Networking stack + if (stream.readable()) { // check for end of file + BigBuf[stream.readLen()] = 0; // Transform this buffer in a zero-terminated char* string + tsptr = BigBuf; + // displays titles on LCD from XML "<title>....title text...</title>" + do { + tsptr = strstr(tsptr,tstartXML); // find <fullDesc> in string - NULL if not + teptr = strstr(tsptr,tendXML); // find <\fullDesc> in string - NULL if not + if (tsptr!=NULL) tsptr = tsptr + strlen(tstartXML);// move to char after "<fullDesc>" + if ((tsptr!=NULL)&&(teptr!=NULL)) { + i=0; + // loop to display lines on LCD + for (j=0; (j)<(strlen(tsptr)-strlen(teptr)); j=j+16) { + // lcd.cls(); // clear screen before writing a new line + lcd.locate(0,(2+(j/16))); + // loop to output a line on the LCD + for (i=0; ((i<16)&&(tsptr[i+j] != '<')); i++) { + lcd.putc(tsptr[i+j]); + } + } + wait(5); + lcd.cls(); //clear LCD between traffic updates + lcd.locate(0,2); + } + } while (tsptr!=NULL); // No more "<fullDesc>"s in BigBuf to display + stream.readNext((byte*)BigBuf, 2048); //Buffer read, now we can put more data in it + } + } + lcd.cls(); + if (result == HTTP_OK) { + lcd.cls(); + lcd.locate(0,1); + lcd.printf(" Read complete"); + } else { + lcd.printf(" Error %d\", result"); + return -1; + } +}
diff -r 000000000000 -r 88e082c58797 mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Wed Mar 06 19:15:22 2013 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/e2ac27c8e93e
diff -r 000000000000 -r 88e082c58797 spxml.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/spxml.lib Wed Mar 06 19:15:22 2013 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/hlipka/code/spxml/#3fa97f2c0505