Paul van der Wielen
/
lc_display
Yet another I2C Text based LCD display program
main.cpp@0:551f3dbd553c, 2011-02-24 (annotated)
- Committer:
- pwheels
- Date:
- Thu Feb 24 16:04:00 2011 +0000
- Revision:
- 0:551f3dbd553c
- Child:
- 1:d8767e2b8e7e
version 1
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
pwheels | 0:551f3dbd553c | 1 | /* |
pwheels | 0:551f3dbd553c | 2 | * Copyright (c) 2011 Paul van der Wielen, Pro-Serv |
pwheels | 0:551f3dbd553c | 3 | * |
pwheels | 0:551f3dbd553c | 4 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
pwheels | 0:551f3dbd553c | 5 | * of this software and associated documentation files (the "Software"), to use |
pwheels | 0:551f3dbd553c | 6 | * and implement the software for none commercial reason and usage only and |
pwheels | 0:551f3dbd553c | 7 | * subject to the following conditions: |
pwheels | 0:551f3dbd553c | 8 | * |
pwheels | 0:551f3dbd553c | 9 | * The above copyright notice and this permission notice shall be included in |
pwheels | 0:551f3dbd553c | 10 | * all copies or substantial portions of the Software. |
pwheels | 0:551f3dbd553c | 11 | * |
pwheels | 0:551f3dbd553c | 12 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
pwheels | 0:551f3dbd553c | 13 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
pwheels | 0:551f3dbd553c | 14 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
pwheels | 0:551f3dbd553c | 15 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
pwheels | 0:551f3dbd553c | 16 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
pwheels | 0:551f3dbd553c | 17 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
pwheels | 0:551f3dbd553c | 18 | * THE SOFTWARE. |
pwheels | 0:551f3dbd553c | 19 | * |
pwheels | 0:551f3dbd553c | 20 | * Usage and assumptions: |
pwheels | 0:551f3dbd553c | 21 | * coding as to interface an I2C LC Display modle available from: |
pwheels | 0:551f3dbd553c | 22 | * Coptonix GmbH |
pwheels | 0:551f3dbd553c | 23 | * Berlin 24.06.2008by @ less than Euro 13.- |
pwheels | 0:551f3dbd553c | 24 | * which will interface to various HD44780 based units, 8Bit-Interface (16x2 or 20x4) |
pwheels | 0:551f3dbd553c | 25 | * |
pwheels | 0:551f3dbd553c | 26 | * Used device = LPC1768 |
pwheels | 0:551f3dbd553c | 27 | */ |
pwheels | 0:551f3dbd553c | 28 | #include "mbed.h" |
pwheels | 0:551f3dbd553c | 29 | #include "lc_display.h" |
pwheels | 0:551f3dbd553c | 30 | |
pwheels | 0:551f3dbd553c | 31 | DigitalOut flash(LED1); |
pwheels | 0:551f3dbd553c | 32 | |
pwheels | 0:551f3dbd553c | 33 | int main() { |
pwheels | 0:551f3dbd553c | 34 | |
pwheels | 0:551f3dbd553c | 35 | // define some user characters for LCD display |
pwheels | 0:551f3dbd553c | 36 | char MySymbol[2][9]= {{0x01,0x04,0x0e,0x1f,0x04,0x04,0x04,0x00,0x00}, |
pwheels | 0:551f3dbd553c | 37 | {0x02,0x00,0x00,0x04,0x04,0x04,0x1f,0x0e,0x04}}; |
pwheels | 0:551f3dbd553c | 38 | // |
pwheels | 0:551f3dbd553c | 39 | _InitLCD(); |
pwheels | 0:551f3dbd553c | 40 | _WriteLCD(LCDType,0x01); |
pwheels | 0:551f3dbd553c | 41 | _WriteLCD(WriteUserDefChar,MySymbol[0],9); |
pwheels | 0:551f3dbd553c | 42 | _WriteLCD(WriteUserDefChar,MySymbol[1],9); |
pwheels | 0:551f3dbd553c | 43 | while (1) { |
pwheels | 0:551f3dbd553c | 44 | _WriteLCD(ClrDisplay); |
pwheels | 0:551f3dbd553c | 45 | _WriteLCD(DisplayON_OFF, 1, 1, 0); |
pwheels | 0:551f3dbd553c | 46 | _WriteLCD(WriteString, "Hello tester !", 14); |
pwheels | 0:551f3dbd553c | 47 | _WriteLCD(SetCursor, 0x05); |
pwheels | 0:551f3dbd553c | 48 | _WriteLCD(Shift, 1, 1); |
pwheels | 0:551f3dbd553c | 49 | _WriteLCD(Delete, 1, 3, 4); |
pwheels | 0:551f3dbd553c | 50 | _WriteLCD(SetCursor, 0x45); |
pwheels | 0:551f3dbd553c | 51 | _WriteLCD(CharToLCD, 0x01); |
pwheels | 0:551f3dbd553c | 52 | _WriteLCD(CharToLCD, 0x02); |
pwheels | 0:551f3dbd553c | 53 | _WriteLCD(Shift, 0, 0); |
pwheels | 0:551f3dbd553c | 54 | // log to usb serial port, visible by Tera Term |
pwheels | 0:551f3dbd553c | 55 | printf("Character ->%c<- at position %d, ram = %x\r\n", _ReadLCD(GetCharAtCur), _ReadLCD(GetCursorAdr), _ReadLCD(ReadRam)); |
pwheels | 0:551f3dbd553c | 56 | _WriteLCD(ReturnHome); |
pwheels | 0:551f3dbd553c | 57 | _WriteLCD(DisplayON_OFF, 0, 1, 1); |
pwheels | 0:551f3dbd553c | 58 | wait(1); |
pwheels | 0:551f3dbd553c | 59 | flash = !flash; |
pwheels | 0:551f3dbd553c | 60 | } |
pwheels | 0:551f3dbd553c | 61 | } |