FFT_Example - Example Audio Spectrum Analyzer

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Example Audio Spectrum Analyzer

LCD_Serial.h@0:74f5a741c618, 2011-02-11 (annotated)

Committer:: Suky
Date:: Fri Feb 11 00:37:57 2011 +0000
Revision:: 0:74f5a741c618

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User	Revision	Line number	New contents of line
Suky	0:74f5a741c618	1	/*
Suky	0:74f5a741c618	2	@file LCD_Serial.h
Suky	0:74f5a741c618	3	@version: 1.0
Suky	0:74f5a741c618	4
Suky	0:74f5a741c618	5	@web www.micros-designs.com.ar
Suky	0:74f5a741c618	6	@date 05/02/11
Suky	0:74f5a741c618	7
Suky	0:74f5a741c618	8	- Version Log --------------------------------------------------------------
Suky	0:74f5a741c618	9	* Fecha Autor Comentarios *
Suky	0:74f5a741c618	10	----------------------------------------------------------------------------
Suky	0:74f5a741c618	11	* 05/02/11 Suky Original *
Suky	0:74f5a741c618	12	----------------------------------------------------------------------------/
Suky	0:74f5a741c618	13	///////////////////////////////////////////////////////////////////////////
Suky	0:74f5a741c618	14	//// ////
Suky	0:74f5a741c618	15	//// ////
Suky	0:74f5a741c618	16	//// (C) Copyright 2011 www.micros-designs.com.ar ////
Suky	0:74f5a741c618	17	//// Este codigo puede ser usado, modificado y distribuido libremente ////
Suky	0:74f5a741c618	18	//// sin eliminar esta cabecera y sin garantia de ningun tipo. ////
Suky	0:74f5a741c618	19	//// ////
Suky	0:74f5a741c618	20	//// ////
Suky	0:74f5a741c618	21	///////////////////////////////////////////////////////////////////////////
Suky	0:74f5a741c618	22	#include "mbed.h"
Suky	0:74f5a741c618	23	#include "DataCGRAM.h"
Suky	0:74f5a741c618	24
Suky	0:74f5a741c618	25	class LCDSerial:public Stream {
Suky	0:74f5a741c618	26	public:
Suky	0:74f5a741c618	27	#define LCDClr 0x01 // Borra pantalla, cursor a Inicio
Suky	0:74f5a741c618	28	#define LCDHome 0x02 // Cursor a Inicio, DDRAM sin cambios
Suky	0:74f5a741c618	29	#define LCDIncCursor 0x06 // Modo incrementa cursor
Suky	0:74f5a741c618	30	#define LCDDecCursor 0x04 // Modo decrementa cursor
Suky	0:74f5a741c618	31	#define LCDOn 0x0C // Pantalla On
Suky	0:74f5a741c618	32	#define LCDOff 0x08 // Pantalla Off
Suky	0:74f5a741c618	33	#define LCDCursorOn 0x0E // Pantalla On, cursor On
Suky	0:74f5a741c618	34	#define LCDCursorOff 0x0C // Pantalla On, cursor Off
Suky	0:74f5a741c618	35	#define LCDCursorBlink 0x0F // Pantalla On, Cursor parpadeante
Suky	0:74f5a741c618	36	#define LCDCursorLeft 0x10 // Mueve cursor a la izquierda
Suky	0:74f5a741c618	37	#define LCDCursorRight 0x14 // Mueve cursor a la derecha
Suky	0:74f5a741c618	38	#define LCDDisplayLeft 0x18 // Mueve Display a la izquierda
Suky	0:74f5a741c618	39	#define LCDDisplayRight 0x1C // Mueve Display a la Derecha
Suky	0:74f5a741c618	40	/** Crea LCD interface
Suky	0:74f5a741c618	41	*
Suky	0:74f5a741c618	42	* @param DATA
Suky	0:74f5a741c618	43	* @param CLK
Suky	0:74f5a741c618	44	* @param E
Suky	0:74f5a741c618	45	*/
Suky	0:74f5a741c618	46	LCDSerial(PinName DATA,PinName CLK,PinName E,PinName BACK=NC);
Suky	0:74f5a741c618	47	void vGotoxy(char x,char y);
Suky	0:74f5a741c618	48	void vSetBacklight(bool Value);
Suky	0:74f5a741c618	49	void vPutc(char Data);
Suky	0:74f5a741c618	50	void vCommand(char Data);
Suky	0:74f5a741c618	51	#if DOXYGEN_ONLY
Suky	0:74f5a741c618	52	/** Escribe un caracter en LCD
Suky	0:74f5a741c618	53	*
Suky	0:74f5a741c618	54	* @param c El caracter a escribir en LCD
Suky	0:74f5a741c618	55	*/
Suky	0:74f5a741c618	56	int putc(int c);
Suky	0:74f5a741c618	57
Suky	0:74f5a741c618	58	/** Escribe un string formateado en LCD
Suky	0:74f5a741c618	59	*
Suky	0:74f5a741c618	60	* @param format A printf-style format string, followed by the
Suky	0:74f5a741c618	61	* variables to use in formating the string.
Suky	0:74f5a741c618	62	*/
Suky	0:74f5a741c618	63	int printf(const char* format, ...);
Suky	0:74f5a741c618	64	#endif
Suky	0:74f5a741c618	65	private:
Suky	0:74f5a741c618	66	#define LcdType 2 // 0=5x7, 1=5x10, 2=varias lineas
Suky	0:74f5a741c618	67	#define LCD_LINE_1_ADDRESS 0x00
Suky	0:74f5a741c618	68	#define LCD_LINE_2_ADDRESS 0x40
Suky	0:74f5a741c618	69	#define LCD_LINE_3_ADDRESS 0x14
Suky	0:74f5a741c618	70	#define LCD_LINE_4_ADDRESS 0x54
Suky	0:74f5a741c618	71	#define LCD_COMMAND 0
Suky	0:74f5a741c618	72	#define LCD_DATA 1
Suky	0:74f5a741c618	73	DigitalOut _DATA,_CLK,_E,_BACK;
Suky	0:74f5a741c618	74	char NLinea;
Suky	0:74f5a741c618	75	// Stream implementation functions
Suky	0:74f5a741c618	76	virtual int _putc(int value);
Suky	0:74f5a741c618	77	virtual int _getc();
Suky	0:74f5a741c618	78	virtual void vWriteLCD(char Data,char Type);
Suky	0:74f5a741c618	79	virtual void vSetCGRAM(const char *Data);
Suky	0:74f5a741c618	80	};
Suky	0:74f5a741c618	81
Suky	0:74f5a741c618	82
Suky	0:74f5a741c618	83	LCDSerial::LCDSerial(PinName DATA,PinName CLK,PinName E,PinName BACK)
Suky	0:74f5a741c618	84	:_DATA(DATA),_CLK(CLK),_E(E),_BACK(BACK){
Suky	0:74f5a741c618	85	char Temp;
Suky	0:74f5a741c618	86
Suky	0:74f5a741c618	87	NLinea=1;
Suky	0:74f5a741c618	88	wait_ms(15);
Suky	0:74f5a741c618	89	_DATA=0;
Suky	0:74f5a741c618	90	_CLK=0;
Suky	0:74f5a741c618	91	_E=0;
Suky	0:74f5a741c618	92	_BACK=0;
Suky	0:74f5a741c618	93
Suky	0:74f5a741c618	94	for(int k=0;k<8;k++){
Suky	0:74f5a741c618	95	_CLK=1;
Suky	0:74f5a741c618	96	wait_us(1);
Suky	0:74f5a741c618	97	_CLK=0;
Suky	0:74f5a741c618	98	wait_us(1);
Suky	0:74f5a741c618	99	}
Suky	0:74f5a741c618	100
Suky	0:74f5a741c618	101	Temp=0x03;
Suky	0:74f5a741c618	102	for(int k=0;k<8;k++){
Suky	0:74f5a741c618	103	_DATA=!!(Temp&0x80);
Suky	0:74f5a741c618	104	Temp<<=1;
Suky	0:74f5a741c618	105	_CLK=1;
Suky	0:74f5a741c618	106	wait_us(1);
Suky	0:74f5a741c618	107	_CLK=0;
Suky	0:74f5a741c618	108	}
Suky	0:74f5a741c618	109	for(int k=0;k<3;k++){
Suky	0:74f5a741c618	110	_E=1;
Suky	0:74f5a741c618	111	wait_ms(2);
Suky	0:74f5a741c618	112	_E=0;
Suky	0:74f5a741c618	113	wait_ms(2);
Suky	0:74f5a741c618	114	}
Suky	0:74f5a741c618	115	Temp=0x02;
Suky	0:74f5a741c618	116	for(int k=0;k<8;k++){
Suky	0:74f5a741c618	117	_DATA=!!(Temp&0x80);
Suky	0:74f5a741c618	118	Temp<<=1;
Suky	0:74f5a741c618	119	_CLK=1;
Suky	0:74f5a741c618	120	wait_us(1);
Suky	0:74f5a741c618	121	_CLK=0;
Suky	0:74f5a741c618	122	}
Suky	0:74f5a741c618	123	_E=1;
Suky	0:74f5a741c618	124	wait_us(1);
Suky	0:74f5a741c618	125	_E=0;
Suky	0:74f5a741c618	126
Suky	0:74f5a741c618	127	vWriteLCD(0x20 \| (LcdType<<2),LCD_COMMAND); // Tipo display.-
Suky	0:74f5a741c618	128	wait_ms(2);
Suky	0:74f5a741c618	129	vWriteLCD(0x01,LCD_COMMAND); // Borramos display.-
Suky	0:74f5a741c618	130	wait_ms(2);
Suky	0:74f5a741c618	131	vWriteLCD(0x06,LCD_COMMAND); // Incrementa cursor.-
Suky	0:74f5a741c618	132	vWriteLCD(0x0C,LCD_COMMAND); // Encendemos display.-
Suky	0:74f5a741c618	133	vSetCGRAM(CGRAM_DATA); // Guardamos data en CGRAM.-
Suky	0:74f5a741c618	134	}
Suky	0:74f5a741c618	135
Suky	0:74f5a741c618	136	void LCDSerial::vWriteLCD(char Data,char Type){
Suky	0:74f5a741c618	137	char data_temp;
Suky	0:74f5a741c618	138
Suky	0:74f5a741c618	139
Suky	0:74f5a741c618	140	wait_us(100);
Suky	0:74f5a741c618	141
Suky	0:74f5a741c618	142	data_temp=(Data>>4); // Rs es bit 4
Suky	0:74f5a741c618	143	if(Type){
Suky	0:74f5a741c618	144	data_temp\|=0x10;
Suky	0:74f5a741c618	145	}
Suky	0:74f5a741c618	146	for(int i=0;i<8;i++){
Suky	0:74f5a741c618	147	_DATA=!!(data_temp & 0x80);
Suky	0:74f5a741c618	148	data_temp<<=1;
Suky	0:74f5a741c618	149	_CLK=1;
Suky	0:74f5a741c618	150	wait_us(1);
Suky	0:74f5a741c618	151	_CLK=0;
Suky	0:74f5a741c618	152	}
Suky	0:74f5a741c618	153
Suky	0:74f5a741c618	154	_E = 1;
Suky	0:74f5a741c618	155	wait_us(1);
Suky	0:74f5a741c618	156	_E = 0;
Suky	0:74f5a741c618	157	data_temp=(Data&0x0F); // Rs es bit 4
Suky	0:74f5a741c618	158	if(Type){
Suky	0:74f5a741c618	159	data_temp\|=0x10;
Suky	0:74f5a741c618	160	}
Suky	0:74f5a741c618	161	for(int i=0;i<8;i++){
Suky	0:74f5a741c618	162	_DATA=!!(data_temp & 0x80);
Suky	0:74f5a741c618	163	data_temp<<=1;
Suky	0:74f5a741c618	164	_CLK=1;
Suky	0:74f5a741c618	165	wait_us(1);
Suky	0:74f5a741c618	166	_CLK=0;
Suky	0:74f5a741c618	167	}
Suky	0:74f5a741c618	168	_E = 1;
Suky	0:74f5a741c618	169	wait_us(1);
Suky	0:74f5a741c618	170	_E = 0;
Suky	0:74f5a741c618	171
Suky	0:74f5a741c618	172	}
Suky	0:74f5a741c618	173
Suky	0:74f5a741c618	174	void LCDSerial::vGotoxy(char x,char y){
Suky	0:74f5a741c618	175	char Direccion;
Suky	0:74f5a741c618	176
Suky	0:74f5a741c618	177	switch(y){
Suky	0:74f5a741c618	178	case 1:Direccion = LCD_LINE_1_ADDRESS;NLinea=1;break;
Suky	0:74f5a741c618	179	case 2:Direccion = LCD_LINE_2_ADDRESS;NLinea=2;break;
Suky	0:74f5a741c618	180	case 3:Direccion = LCD_LINE_3_ADDRESS;NLinea=3;break;
Suky	0:74f5a741c618	181	case 4:Direccion = LCD_LINE_4_ADDRESS;NLinea=4;break;
Suky	0:74f5a741c618	182	default:Direccion = LCD_LINE_1_ADDRESS;NLinea=1;break;
Suky	0:74f5a741c618	183	}
Suky	0:74f5a741c618	184
Suky	0:74f5a741c618	185	Direccion+=x-1;
Suky	0:74f5a741c618	186	vWriteLCD(0x80\|Direccion,LCD_COMMAND);
Suky	0:74f5a741c618	187	}
Suky	0:74f5a741c618	188
Suky	0:74f5a741c618	189	int LCDSerial::_getc(){
Suky	0:74f5a741c618	190	return(-1);
Suky	0:74f5a741c618	191	}
Suky	0:74f5a741c618	192
Suky	0:74f5a741c618	193	int LCDSerial::_putc(int value){
Suky	0:74f5a741c618	194
Suky	0:74f5a741c618	195	switch(value){
Suky	0:74f5a741c618	196	case '\f':
Suky	0:74f5a741c618	197	vWriteLCD(0x01,LCD_COMMAND);
Suky	0:74f5a741c618	198	NLinea=1;
Suky	0:74f5a741c618	199	wait_ms(2);
Suky	0:74f5a741c618	200	break;
Suky	0:74f5a741c618	201	case '\n':
Suky	0:74f5a741c618	202	vGotoxy(1,++NLinea);
Suky	0:74f5a741c618	203	break;
Suky	0:74f5a741c618	204	default:
Suky	0:74f5a741c618	205	vWriteLCD(value,LCD_DATA);
Suky	0:74f5a741c618	206	}
Suky	0:74f5a741c618	207
Suky	0:74f5a741c618	208	return(value);
Suky	0:74f5a741c618	209	}
Suky	0:74f5a741c618	210
Suky	0:74f5a741c618	211	void LCDSerial::vSetBacklight(bool Value){
Suky	0:74f5a741c618	212	_BACK=Value;
Suky	0:74f5a741c618	213	}
Suky	0:74f5a741c618	214
Suky	0:74f5a741c618	215	void LCDSerial::vSetCGRAM(const char *Data){
Suky	0:74f5a741c618	216
Suky	0:74f5a741c618	217	vWriteLCD(0x40,LCD_COMMAND);
Suky	0:74f5a741c618	218	for(int k=0;k<64;k++){
Suky	0:74f5a741c618	219	vWriteLCD(*Data++,LCD_DATA);
Suky	0:74f5a741c618	220	}
Suky	0:74f5a741c618	221	}
Suky	0:74f5a741c618	222
Suky	0:74f5a741c618	223	void LCDSerial::vPutc(char Data){
Suky	0:74f5a741c618	224	_putc(Data);
Suky	0:74f5a741c618	225	}
Suky	0:74f5a741c618	226
Suky	0:74f5a741c618	227	void LCDSerial::vCommand(char Data){
Suky	0:74f5a741c618	228	vWriteLCD(Data,LCD_COMMAND);
Suky	0:74f5a741c618	229	}

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	11 Feb 2011
Imports:	696
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	2
Followers:	19

LCD_Serial.h@0:74f5a741c618, 2011-02-11 (annotated)

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