Matthew Waddilove
Library implementing the TextDisplay interface for the Serial LCDs as sold by Sparkfun etc...
TextLCD_Serial.cpp@0:bd978ddc0470, 2010-08-27 (annotated)
- Committer:
- giryan
- Date:
- Fri Aug 27 13:01:14 2010 +0000
- Revision:
- 0:bd978ddc0470
- Child:
- 1:7174fd65fd77
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| giryan | 0:bd978ddc0470 | 1 | #include "TextLCD_Serial.h" |
| giryan | 0:bd978ddc0470 | 2 | |
| giryan | 0:bd978ddc0470 | 3 | //! Constructor |
| giryan | 0:bd978ddc0470 | 4 | TextLCD_Serial::TextLCD_Serial(PinName tx, PinName rx, char const * name /*= NULL*/) |
| giryan | 0:bd978ddc0470 | 5 | : _lcd(tx, rx) |
| giryan | 0:bd978ddc0470 | 6 | { |
| giryan | 0:bd978ddc0470 | 7 | _lcd.baud(9600); |
| giryan | 0:bd978ddc0470 | 8 | } |
| giryan | 0:bd978ddc0470 | 9 | |
| giryan | 0:bd978ddc0470 | 10 | |
| giryan | 0:bd978ddc0470 | 11 | void TextLCD_Serial::character(int column, int row, int c) |
| giryan | 0:bd978ddc0470 | 12 | { |
| giryan | 0:bd978ddc0470 | 13 | setLCDCursor(column, row); |
| giryan | 0:bd978ddc0470 | 14 | |
| giryan | 0:bd978ddc0470 | 15 | writeData(c); |
| giryan | 0:bd978ddc0470 | 16 | } |
| giryan | 0:bd978ddc0470 | 17 | |
| giryan | 0:bd978ddc0470 | 18 | |
| giryan | 0:bd978ddc0470 | 19 | //! Set the LCD's cursor position |
| giryan | 0:bd978ddc0470 | 20 | void TextLCD_Serial::setLCDCursor(int const column, int const row) |
| giryan | 0:bd978ddc0470 | 21 | { |
| giryan | 0:bd978ddc0470 | 22 | unsigned char const positionCode = Codes::Position | ((row & 0x1) << 6) | (column % 0x3F); |
| giryan | 0:bd978ddc0470 | 23 | |
| giryan | 0:bd978ddc0470 | 24 | writeCommand(positionCode); |
| giryan | 0:bd978ddc0470 | 25 | } |
| giryan | 0:bd978ddc0470 | 26 | |
| giryan | 0:bd978ddc0470 | 27 | /** Clear the screen and locate to 0,0 */ |
| giryan | 0:bd978ddc0470 | 28 | void TextLCD_Serial::cls() |
| giryan | 0:bd978ddc0470 | 29 | { |
| giryan | 0:bd978ddc0470 | 30 | writeCommand(Codes::Clear); |
| giryan | 0:bd978ddc0470 | 31 | |
| giryan | 0:bd978ddc0470 | 32 | locate(0,0); |
| giryan | 0:bd978ddc0470 | 33 | } |
| giryan | 0:bd978ddc0470 | 34 | |
| giryan | 0:bd978ddc0470 | 35 | |
| giryan | 0:bd978ddc0470 | 36 | //! write a byte to _lcd |
| giryan | 0:bd978ddc0470 | 37 | void TextLCD_Serial::writeByte(int const value) |
| giryan | 0:bd978ddc0470 | 38 | { |
| giryan | 0:bd978ddc0470 | 39 | _lcd.putc(value); |
| giryan | 0:bd978ddc0470 | 40 | } |
| giryan | 0:bd978ddc0470 | 41 | |
| giryan | 0:bd978ddc0470 | 42 | |
| giryan | 0:bd978ddc0470 | 43 | //!Send a command |
| giryan | 0:bd978ddc0470 | 44 | void TextLCD_Serial::writeCommand(int const command) |
| giryan | 0:bd978ddc0470 | 45 | { |
| giryan | 0:bd978ddc0470 | 46 | writeByte(Codes::Command); |
| giryan | 0:bd978ddc0470 | 47 | writeByte(command); |
| giryan | 0:bd978ddc0470 | 48 | } |
| giryan | 0:bd978ddc0470 | 49 | |
| giryan | 0:bd978ddc0470 | 50 | |
| giryan | 0:bd978ddc0470 | 51 | //! write a regular char. |
| giryan | 0:bd978ddc0470 | 52 | void TextLCD_Serial::writeData(int const data) |
| giryan | 0:bd978ddc0470 | 53 | { |
| giryan | 0:bd978ddc0470 | 54 | writeByte(data); |
| giryan | 0:bd978ddc0470 | 55 | } |