TextLCD_Serial.cpp

00001 // Copyright (c) 2010 mwaddilove
00002 // Released under the MIT License: http://mbed.org/license/mit
00003 
00004 #include "TextLCD_Serial.h"
00005 
00006 //! Constructor
00007 TextLCD_Serial::TextLCD_Serial(PinName tx, PinName rx, char const * name /*= NULL*/)
00008     : _lcd(tx, rx) 
00009 {
00010     _lcd.baud(9600);
00011 }
00012     
00013     
00014  void TextLCD_Serial::character(int column, int row, int c)
00015  {
00016     setLCDCursor(column, row);
00017     
00018     writeData(c);
00019  }
00020  
00021 
00022 //! Set the LCD's cursor position
00023 void TextLCD_Serial::setLCDCursor(int const column, int const row)
00024 {
00025     unsigned char const positionCode = Codes::Position | ((row & 0x1) << 6) | (column % 0x3F);
00026     
00027     writeCommand(positionCode);
00028 }
00029 
00030 /** Clear the screen and locate to 0,0 */
00031 void TextLCD_Serial::cls()
00032 {
00033     writeCommand(Codes::Clear);
00034     
00035     locate(0,0);
00036 }
00037 
00038 
00039 //! write a byte to _lcd
00040 void TextLCD_Serial::writeByte(int const value)
00041 {
00042     _lcd.putc(value);
00043 }
00044 
00045 
00046 //!Send a command
00047 void TextLCD_Serial::writeCommand(int const command)
00048 {
00049     writeByte(Codes::Command);
00050     writeByte(command);
00051 }
00052 
00053 
00054 //! write a regular char.
00055 void TextLCD_Serial::writeData(int const data)
00056 {
00057     writeByte(data);
00058 }