Elmicro_Testbed_LCD - Based on the NewTextLib, I made a modification fo…

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Ton van de Pol / Mbed 2 deprecated Elmicro_Testbed_LCD

Based on the NewTextLib, I made a modification for using this lib on the Elmicro Testbed with display GDM2004D

NewTextLCD.h@0:9c69fa6c1120, 2011-06-11 (annotated)

Committer:: TP
Date:: Sat Jun 11 20:34:14 2011 +0000
Revision:: 0:9c69fa6c1120

Who changed what in which revision?

User	Revision	Line number	New contents of line
TP	0:9c69fa6c1120	1	/* mbed TextLCD Library, for a 4-bit LCD based on HD44780
TP	0:9c69fa6c1120	2	* Copyright (c) 2007-2010, sford, http://mbed.org
TP	0:9c69fa6c1120	3	* 2011-06-11 TP modified for Elmicro Testbed with display GDM4000D
TP	0:9c69fa6c1120	4	*
TP	0:9c69fa6c1120	5	* Permission is hereby granted, free of charge, to any person obtaining a copy
TP	0:9c69fa6c1120	6	* of this software and associated documentation files (the "Software"), to deal
TP	0:9c69fa6c1120	7	* in the Software without restriction, including without limitation the rights
TP	0:9c69fa6c1120	8	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
TP	0:9c69fa6c1120	9	* copies of the Software, and to permit persons to whom the Software is
TP	0:9c69fa6c1120	10	* furnished to do so, subject to the following conditions:
TP	0:9c69fa6c1120	11	*
TP	0:9c69fa6c1120	12	* The above copyright notice and this permission notice shall be included in
TP	0:9c69fa6c1120	13	* all copies or substantial portions of the Software.
TP	0:9c69fa6c1120	14	*
TP	0:9c69fa6c1120	15	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
TP	0:9c69fa6c1120	16	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
TP	0:9c69fa6c1120	17	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
TP	0:9c69fa6c1120	18	* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
TP	0:9c69fa6c1120	19	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
TP	0:9c69fa6c1120	20	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
TP	0:9c69fa6c1120	21	* THE SOFTWARE.
TP	0:9c69fa6c1120	22	*/
TP	0:9c69fa6c1120	23
TP	0:9c69fa6c1120	24	#ifndef MBED_TEXTLCD_H
TP	0:9c69fa6c1120	25	#define MBED_TEXTLCD_H
TP	0:9c69fa6c1120	26
TP	0:9c69fa6c1120	27	#include "mbed.h"
TP	0:9c69fa6c1120	28
TP	0:9c69fa6c1120	29	/** A TextLCD interface for driving 4-bit HD44780-based LCDs
TP	0:9c69fa6c1120	30	*
TP	0:9c69fa6c1120	31	* Currently supports 16x2, 20x2 and 20x4 panels
TP	0:9c69fa6c1120	32	*
TP	0:9c69fa6c1120	33	* @code
TP	0:9c69fa6c1120	34	* #include "mbed.h"
TP	0:9c69fa6c1120	35	* #include "NewTextLCD.h"
TP	0:9c69fa6c1120	36	*
TP	0:9c69fa6c1120	37	* TextLCD lcd(p26, p25, p24, p23, p22, p20, p19, TextLCD::LCD20x4); // rs, rw, e, d4-d7
TP	0:9c69fa6c1120	38	*
TP	0:9c69fa6c1120	39	* int main() {
TP	0:9c69fa6c1120	40	* lcd.printf("Hello mbed\n");
TP	0:9c69fa6c1120	41	*
TP	0:9c69fa6c1120	42	* //define user chars
TP	0:9c69fa6c1120	43	* int pattern[8];
TP	0:9c69fa6c1120	44	* int pattern1[8];
TP	0:9c69fa6c1120	45	* pattern[0] = 1; // *
TP	0:9c69fa6c1120	46	* pattern[1] = 3; // **
TP	0:9c69fa6c1120	47	* pattern[2] = 5; // * *
TP	0:9c69fa6c1120	48	* pattern[3] = 9; // * *
TP	0:9c69fa6c1120	49	* pattern[4] = 0x11; // * *
TP	0:9c69fa6c1120	50	* pattern[5] = 0x19; // ** *
TP	0:9c69fa6c1120	51	* pattern[6] = 0x1d; // *** *
TP	0:9c69fa6c1120	52	* pattern[7] = 0x1f; // *****
TP	0:9c69fa6c1120	53	*
TP	0:9c69fa6c1120	54	* pattern1[0] = 0x10; // *
TP	0:9c69fa6c1120	55	* pattern1[1] = 0x18; // **
TP	0:9c69fa6c1120	56	* pattern1[2] = 0x14; // * *
TP	0:9c69fa6c1120	57	* pattern1[3] = 0x12; // * *
TP	0:9c69fa6c1120	58	* pattern1[4] = 0x11; // * *
TP	0:9c69fa6c1120	59	* pattern1[5] = 0x13; // * **
TP	0:9c69fa6c1120	60	* pattern1[6] = 0x17; // * ***
TP	0:9c69fa6c1120	61	* pattern1[7] = 0x1f; // *****
TP	0:9c69fa6c1120	62	*
TP	0:9c69fa6c1120	63	* lcd.writeCGRAM(0, pattern);
TP	0:9c69fa6c1120	64	* lcd.writeCGRAM(1, pattern1);
TP	0:9c69fa6c1120	65	*
TP	0:9c69fa6c1120	66	* lcd.locate(15,0);
TP	0:9c69fa6c1120	67	* lcd.putc(0); // user pattern 0
TP	0:9c69fa6c1120	68	* lcd.putc(1); // user pattern 1
TP	0:9c69fa6c1120	69	* }
TP	0:9c69fa6c1120	70	* @endcode
TP	0:9c69fa6c1120	71	*/
TP	0:9c69fa6c1120	72	class TextLCD : public Stream {
TP	0:9c69fa6c1120	73	public:
TP	0:9c69fa6c1120	74
TP	0:9c69fa6c1120	75	/** LCD panel format */
TP	0:9c69fa6c1120	76	enum LCDType {
TP	0:9c69fa6c1120	77	LCD16x2 /*< 16x2 LCD panel (default) /
TP	0:9c69fa6c1120	78	, LCD16x2B /*< 16x2 LCD panel alternate addressing /
TP	0:9c69fa6c1120	79	, LCD20x2 /*< 20x2 LCD panel /
TP	0:9c69fa6c1120	80	, LCD20x4 /*< 20x4 LCD panel /
TP	0:9c69fa6c1120	81	, LCD24x2 /*< 24x2 LCD panel /
TP	0:9c69fa6c1120	82	, LCDuser /** User defined LCD, rows/columns must be set */
TP	0:9c69fa6c1120	83	};
TP	0:9c69fa6c1120	84
TP	0:9c69fa6c1120	85	/** Create a TextLCD interface
TP	0:9c69fa6c1120	86	*
TP	0:9c69fa6c1120	87	* @param rs Instruction/data control line
TP	0:9c69fa6c1120	88	* @param rw R/W line
TP	0:9c69fa6c1120	89	* @param e Enable line (clock)
TP	0:9c69fa6c1120	90	* @param d4-d7 Data lines
TP	0:9c69fa6c1120	91	* @param type Sets the panel size/addressing mode (default = LCD16x2)
TP	0:9c69fa6c1120	92	*/
TP	0:9c69fa6c1120	93	TextLCD(PinName rs, PinName rw, PinName e, PinName d4, PinName d5, PinName d6, PinName d7, LCDType type = LCD16x2);
TP	0:9c69fa6c1120	94
TP	0:9c69fa6c1120	95	#if DOXYGEN_ONLY
TP	0:9c69fa6c1120	96	/** Write a character to the LCD
TP	0:9c69fa6c1120	97	*
TP	0:9c69fa6c1120	98	* @param c The character to write to the display
TP	0:9c69fa6c1120	99	*/
TP	0:9c69fa6c1120	100	int putc(int c);
TP	0:9c69fa6c1120	101
TP	0:9c69fa6c1120	102	/** Write a formated string to the LCD
TP	0:9c69fa6c1120	103	*
TP	0:9c69fa6c1120	104	* @param format A printf-style format string, followed by the
TP	0:9c69fa6c1120	105	* variables to use in formating the string.
TP	0:9c69fa6c1120	106	*/
TP	0:9c69fa6c1120	107	int printf(const char* format, ...);
TP	0:9c69fa6c1120	108	#endif
TP	0:9c69fa6c1120	109
TP	0:9c69fa6c1120	110	/** Locate to a screen column and row
TP	0:9c69fa6c1120	111	*
TP	0:9c69fa6c1120	112	* @param column The horizontal position from the left, indexed from 0
TP	0:9c69fa6c1120	113	* @param row The vertical position from the top, indexed from 0
TP	0:9c69fa6c1120	114	*/
TP	0:9c69fa6c1120	115	void locate(int column, int row);
TP	0:9c69fa6c1120	116
TP	0:9c69fa6c1120	117	/** Clear the screen and locate to 0,0 */
TP	0:9c69fa6c1120	118	void cls();
TP	0:9c69fa6c1120	119
TP	0:9c69fa6c1120	120	struct LCDparam {
TP	0:9c69fa6c1120	121	int rows; // number of lines //
TP	0:9c69fa6c1120	122	int columns; // number of columns //
TP	0:9c69fa6c1120	123	int delay; // delay for commands microseconds //
TP	0:9c69fa6c1120	124	int adresses[4]; // start adresses for 4 lines //
TP	0:9c69fa6c1120	125	} LCDparam;
TP	0:9c69fa6c1120	126
TP	0:9c69fa6c1120	127	/** write a user defined char
TP	0:9c69fa6c1120	128	*
TP	0:9c69fa6c1120	129	* @param address The user defined char (0-7)
TP	0:9c69fa6c1120	130	* @param pattern[8] bit pattern 5*8 of char
TP	0:9c69fa6c1120	131	*/
TP	0:9c69fa6c1120	132	void writeCGRAM(int address, int pattern[8]);
TP	0:9c69fa6c1120	133
TP	0:9c69fa6c1120	134	/** Get the char at the current position
TP	0:9c69fa6c1120	135	*
TP	0:9c69fa6c1120	136	* int getc()
TP	0:9c69fa6c1120	137	*/
TP	0:9c69fa6c1120	138	void writeCommand(int command);
TP	0:9c69fa6c1120	139
TP	0:9c69fa6c1120	140	protected:
TP	0:9c69fa6c1120	141
TP	0:9c69fa6c1120	142	// Stream implementation functions
TP	0:9c69fa6c1120	143	virtual int _putc(int value);
TP	0:9c69fa6c1120	144	virtual int _getc();
TP	0:9c69fa6c1120	145
TP	0:9c69fa6c1120	146	int address(int column, int row);
TP	0:9c69fa6c1120	147	void character(int column, int row, int c);
TP	0:9c69fa6c1120	148	void writeByte(int value);
TP	0:9c69fa6c1120	149	void writeData(int data);
TP	0:9c69fa6c1120	150	void setLCDparam(LCDType _type);
TP	0:9c69fa6c1120	151	DigitalOut _rs, _rw, _e;
TP	0:9c69fa6c1120	152	BusOut _d;
TP	0:9c69fa6c1120	153	LCDType _type;
TP	0:9c69fa6c1120	154
TP	0:9c69fa6c1120	155	int _column;
TP	0:9c69fa6c1120	156	int _row;
TP	0:9c69fa6c1120	157	};
TP	0:9c69fa6c1120	158
TP	0:9c69fa6c1120	159	#endif

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	11 Jun 2011
Imports:	16
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	1
Followers:	1

NewTextLCD.h@0:9c69fa6c1120, 2011-06-11 (annotated)

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