Library implementing the TextDisplay interface for the Serial LCDs as sold by Sparkfun etc...
TextLCD_Serial.cpp@2:60947d4b0efe, 2010-09-05 (annotated)
- Committer:
- giryan
- Date:
- Sun Sep 05 09:23:37 2010 +0000
- Revision:
- 2:60947d4b0efe
- Parent:
- 1:7174fd65fd77
Rearranged the lib to have it as a lib withing a project
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
giryan | 1:7174fd65fd77 | 1 | // Copyright (c) 2010 mwaddilove |
giryan | 1:7174fd65fd77 | 2 | // Released under the MIT License: http://mbed.org/license/mit |
giryan | 1:7174fd65fd77 | 3 | |
giryan | 0:bd978ddc0470 | 4 | #include "TextLCD_Serial.h" |
giryan | 0:bd978ddc0470 | 5 | |
giryan | 0:bd978ddc0470 | 6 | //! Constructor |
giryan | 0:bd978ddc0470 | 7 | TextLCD_Serial::TextLCD_Serial(PinName tx, PinName rx, char const * name /*= NULL*/) |
giryan | 0:bd978ddc0470 | 8 | : _lcd(tx, rx) |
giryan | 0:bd978ddc0470 | 9 | { |
giryan | 0:bd978ddc0470 | 10 | _lcd.baud(9600); |
giryan | 0:bd978ddc0470 | 11 | } |
giryan | 0:bd978ddc0470 | 12 | |
giryan | 0:bd978ddc0470 | 13 | |
giryan | 0:bd978ddc0470 | 14 | void TextLCD_Serial::character(int column, int row, int c) |
giryan | 0:bd978ddc0470 | 15 | { |
giryan | 0:bd978ddc0470 | 16 | setLCDCursor(column, row); |
giryan | 0:bd978ddc0470 | 17 | |
giryan | 0:bd978ddc0470 | 18 | writeData(c); |
giryan | 0:bd978ddc0470 | 19 | } |
giryan | 0:bd978ddc0470 | 20 | |
giryan | 0:bd978ddc0470 | 21 | |
giryan | 0:bd978ddc0470 | 22 | //! Set the LCD's cursor position |
giryan | 0:bd978ddc0470 | 23 | void TextLCD_Serial::setLCDCursor(int const column, int const row) |
giryan | 0:bd978ddc0470 | 24 | { |
giryan | 0:bd978ddc0470 | 25 | unsigned char const positionCode = Codes::Position | ((row & 0x1) << 6) | (column % 0x3F); |
giryan | 0:bd978ddc0470 | 26 | |
giryan | 0:bd978ddc0470 | 27 | writeCommand(positionCode); |
giryan | 0:bd978ddc0470 | 28 | } |
giryan | 0:bd978ddc0470 | 29 | |
giryan | 0:bd978ddc0470 | 30 | /** Clear the screen and locate to 0,0 */ |
giryan | 0:bd978ddc0470 | 31 | void TextLCD_Serial::cls() |
giryan | 0:bd978ddc0470 | 32 | { |
giryan | 0:bd978ddc0470 | 33 | writeCommand(Codes::Clear); |
giryan | 0:bd978ddc0470 | 34 | |
giryan | 0:bd978ddc0470 | 35 | locate(0,0); |
giryan | 0:bd978ddc0470 | 36 | } |
giryan | 0:bd978ddc0470 | 37 | |
giryan | 0:bd978ddc0470 | 38 | |
giryan | 0:bd978ddc0470 | 39 | //! write a byte to _lcd |
giryan | 0:bd978ddc0470 | 40 | void TextLCD_Serial::writeByte(int const value) |
giryan | 0:bd978ddc0470 | 41 | { |
giryan | 0:bd978ddc0470 | 42 | _lcd.putc(value); |
giryan | 0:bd978ddc0470 | 43 | } |
giryan | 0:bd978ddc0470 | 44 | |
giryan | 0:bd978ddc0470 | 45 | |
giryan | 0:bd978ddc0470 | 46 | //!Send a command |
giryan | 0:bd978ddc0470 | 47 | void TextLCD_Serial::writeCommand(int const command) |
giryan | 0:bd978ddc0470 | 48 | { |
giryan | 0:bd978ddc0470 | 49 | writeByte(Codes::Command); |
giryan | 0:bd978ddc0470 | 50 | writeByte(command); |
giryan | 0:bd978ddc0470 | 51 | } |
giryan | 0:bd978ddc0470 | 52 | |
giryan | 0:bd978ddc0470 | 53 | |
giryan | 0:bd978ddc0470 | 54 | //! write a regular char. |
giryan | 0:bd978ddc0470 | 55 | void TextLCD_Serial::writeData(int const data) |
giryan | 0:bd978ddc0470 | 56 | { |
giryan | 0:bd978ddc0470 | 57 | writeByte(data); |
giryan | 0:bd978ddc0470 | 58 | } |