TextLCD - for

Users » thomasya » Code » TextLCD

for

Dependents: LV_FGSE_Controller_Interface

TextLCD.cpp@31:ef31cd8a00d1, 2014-06-29 (annotated)

Committer:: wim
Date:: Sun Jun 29 14:55:50 2014 +0000
Revision:: 31:ef31cd8a00d1
Parent:: 30:033048611c01
Child:: 32:59c4b8f648d4

Added Support for native I2C controllers (PCF21XX, AIP31068), added LCDTypes for 3 and 4 line displays. Encoded features in LCDTypes and LCDCtrl enumerators to ease code maintenance and improve sanity checks.

Who changed what in which revision?

User	Revision	Line number	New contents of line
simon	1:ac48b187213c	1	/* mbed TextLCD Library, for a 4-bit LCD based on HD44780
simon	6:e4cb7ddee0d3	2	* Copyright (c) 2007-2010, sford, http://mbed.org
wim	14:0c32b66b14b8	3	* 2013, v01: WH, Added LCD types, fixed LCD address issues, added Cursor and UDCs
wim	14:0c32b66b14b8	4	* 2013, v02: WH, Added I2C and SPI bus interfaces
wim	15:b70ebfffb258	5	* 2013, v03: WH, Added support for LCD40x4 which uses 2 controllers
wim	18:bd65dc10f27f	6	* 2013, v04: WH, Added support for Display On/Off, improved 4bit bootprocess
wim	18:bd65dc10f27f	7	* 2013, v05: WH, Added support for 8x2B, added some UDCs
wim	19:c747b9e2e7b8	8	* 2013, v06: WH, Added support for devices that use internal DC/DC converters
wim	20:e0da005a777f	9	* 2013, v07: WH, Added support for backlight and include portdefinitions for LCD2004 Module from DFROBOT
wim	22:35742ec80c24	10	* 2014, v08: WH, Refactored in Base and Derived Classes to deal with mbed lib change regarding 'NC' defined pins
wim	25:6162b31128c9	11	* 2014, v09: WH/EO, Added Class for Native SPI controllers such as ST7032
wim	26:bd897a001012	12	* 2014, v10: WH, Added Class for Native I2C controllers such as ST7032i, Added support for MCP23008 I2C portexpander, Added support for Adafruit module
wim	30:033048611c01	13	* 2014, v11: WH, Added support for native I2C controllers such as PCF21XX, Improved the _initCtrl() method to deal with differences between all supported controllers
simon	1:ac48b187213c	14	*
simon	1:ac48b187213c	15	* Permission is hereby granted, free of charge, to any person obtaining a copy
simon	1:ac48b187213c	16	* of this software and associated documentation files (the "Software"), to deal
simon	1:ac48b187213c	17	* in the Software without restriction, including without limitation the rights
simon	1:ac48b187213c	18	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
simon	1:ac48b187213c	19	* copies of the Software, and to permit persons to whom the Software is
simon	1:ac48b187213c	20	* furnished to do so, subject to the following conditions:
simon	1:ac48b187213c	21	*
simon	1:ac48b187213c	22	* The above copyright notice and this permission notice shall be included in
simon	1:ac48b187213c	23	* all copies or substantial portions of the Software.
simon	1:ac48b187213c	24	*
simon	1:ac48b187213c	25	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
simon	1:ac48b187213c	26	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
simon	1:ac48b187213c	27	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
simon	1:ac48b187213c	28	* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
simon	1:ac48b187213c	29	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
simon	1:ac48b187213c	30	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
simon	1:ac48b187213c	31	* THE SOFTWARE.
simon	1:ac48b187213c	32	*/
simon	1:ac48b187213c	33
simon	1:ac48b187213c	34	#include "TextLCD.h"
simon	1:ac48b187213c	35	#include "mbed.h"
simon	1:ac48b187213c	36
wim	30:033048611c01	37	//For Testing only
wim	30:033048611c01	38	//DigitalOut led1(LED1);
wim	30:033048611c01	39	//DigitalOut led2(LED2);
wim	30:033048611c01	40	// led2=!led2;
wim	29:a3663151aa65	41
wim	29:a3663151aa65	42
wim	30:033048611c01	43	/** Some sample User Defined Chars 5x7 dots */
wim	30:033048611c01	44	const char udc_ae[] = {0x00, 0x00, 0x1B, 0x05, 0x1F, 0x14, 0x1F, 0x00}; //æ
wim	30:033048611c01	45	const char udc_0e[] = {0x00, 0x00, 0x0E, 0x13, 0x15, 0x19, 0x0E, 0x00}; //ø
wim	30:033048611c01	46	const char udc_ao[] = {0x0E, 0x0A, 0x0E, 0x01, 0x0F, 0x11, 0x0F, 0x00}; //å
wim	30:033048611c01	47	const char udc_AE[] = {0x0F, 0x14, 0x14, 0x1F, 0x14, 0x14, 0x17, 0x00}; //Æ
wim	30:033048611c01	48	const char udc_0E[] = {0x0E, 0x13, 0x15, 0x15, 0x15, 0x19, 0x0E, 0x00}; //Ø
wim	30:033048611c01	49	const char udc_Ao[] = {0x0E, 0x0A, 0x0E, 0x11, 0x1F, 0x11, 0x11, 0x00}; //Å
wim	30:033048611c01	50	const char udc_PO[] = {0x04, 0x0A, 0x0A, 0x1F, 0x1B, 0x1B, 0x1F, 0x00}; //Padlock Open
wim	30:033048611c01	51	const char udc_PC[] = {0x1C, 0x10, 0x08, 0x1F, 0x1B, 0x1B, 0x1F, 0x00}; //Padlock Closed
wim	30:033048611c01	52
wim	30:033048611c01	53	const char udc_0[] = {0x18, 0x14, 0x12, 0x11, 0x12, 0x14, 0x18, 0x00}; // \|>
wim	30:033048611c01	54	const char udc_1[] = {0x03, 0x05, 0x09, 0x11, 0x09, 0x05, 0x03, 0x00}; // <\|
wim	30:033048611c01	55	const char udc_2[] = {0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x00}; // \|
wim	30:033048611c01	56	const char udc_3[] = {0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x00}; // \|\|
wim	30:033048611c01	57	const char udc_4[] = {0x15, 0x15, 0x15, 0x15, 0x15, 0x15, 0x15, 0x00}; // \|\|\|
wim	30:033048611c01	58	const char udc_5[] = {0x00, 0x1f, 0x00, 0x1f, 0x00, 0x1f, 0x00, 0x00}; // =
wim	30:033048611c01	59	const char udc_6[] = {0x15, 0x0a, 0x15, 0x0a, 0x15, 0x0a, 0x15, 0x00}; // checkerboard
wim	30:033048611c01	60	const char udc_7[] = {0x10, 0x08, 0x04, 0x02, 0x01, 0x00, 0x10, 0x00}; // \
wim	30:033048611c01	61
wim	30:033048611c01	62	const char udc_degr[] = {0x06, 0x09, 0x09, 0x06, 0x00, 0x00, 0x00, 0x00}; // Degree symbol
wim	30:033048611c01	63
wim	30:033048611c01	64	const char udc_TM_T[] = {0x1F, 0x04, 0x04, 0x04, 0x00, 0x00, 0x00, 0x00}; // Trademark T
wim	30:033048611c01	65	const char udc_TM_M[] = {0x11, 0x1B, 0x15, 0x11, 0x00, 0x00, 0x00, 0x00}; // Trademark M
wim	30:033048611c01	66
wim	30:033048611c01	67	//const char udc_Bat_Hi[] = {0x0E, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x00}; // Battery Full
wim	30:033048611c01	68	//const char udc_Bat_Ha[] = {0x0E, 0x11, 0x13, 0x17, 0x1F, 0x1F, 0x1F, 0x00}; // Battery Half
wim	30:033048611c01	69	//const char udc_Bat_Lo[] = {0x0E, 0x11, 0x11, 0x11, 0x11, 0x11, 0x1F, 0x00}; // Battery Low
wim	30:033048611c01	70	const char udc_Bat_Hi[] = {0x0E, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x00}; // Battery Full
wim	30:033048611c01	71	const char udc_Bat_Ha[] = {0x0E, 0x11, 0x11, 0x1F, 0x1F, 0x1F, 0x1F, 0x00}; // Battery Half
wim	30:033048611c01	72	const char udc_Bat_Lo[] = {0x0E, 0x11, 0x11, 0x11, 0x11, 0x1F, 0x1F, 0x00}; // Battery Low
wim	30:033048611c01	73	const char udc_AC[] = {0x0A, 0x0A, 0x1F, 0x11, 0x0E, 0x04, 0x04, 0x00}; // AC Power
wim	30:033048611c01	74
wim	30:033048611c01	75	//const char udc_smiley[] = {0x00, 0x0A, 0x00, 0x04, 0x11, 0x0E, 0x00, 0x00}; // Smiley
wim	30:033048611c01	76	//const char udc_droopy[] = {0x00, 0x0A, 0x00, 0x04, 0x00, 0x0E, 0x11, 0x00}; // Droopey
wim	30:033048611c01	77	//const char udc_note[] = {0x01, 0x03, 0x05, 0x09, 0x0B, 0x1B, 0x18, 0x00}; // Note
wim	30:033048611c01	78
wim	30:033048611c01	79	//const char udc_bar_1[] = {0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x00}; // Bar 1
wim	30:033048611c01	80	//const char udc_bar_2[] = {0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x00}; // Bar 11
wim	30:033048611c01	81	//const char udc_bar_3[] = {0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x00}; // Bar 111
wim	30:033048611c01	82	//const char udc_bar_4[] = {0x17, 0x17, 0x17, 0x17, 0x17, 0x17, 0x17, 0x00}; // Bar 1111
wim	30:033048611c01	83	//const char udc_bar_5[] = {0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x00}; // Bar 11111
wim	30:033048611c01	84
wim	30:033048611c01	85	//const char udc_ch_1[] = {0x1f, 0x00, 0x1f, 0x00, 0x1f, 0x00, 0x1f, 0x00}; // Hor bars 4
wim	30:033048611c01	86	//const char udc_ch_2[] = {0x00, 0x1f, 0x00, 0x1f, 0x00, 0x1f, 0x00, 0x1f}; // Hor bars 4 (inverted)
wim	30:033048611c01	87	//const char udc_ch_3[] = {0x15, 0x15, 0x15, 0x15, 0x15, 0x15, 0x15, 0x15}; // Ver bars 3
wim	30:033048611c01	88	//const char udc_ch_4[] = {0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a}; // Ver bars 3 (inverted)
wim	30:033048611c01	89	//const char udc_ch_yr[] = {0x08, 0x0f, 0x12, 0x0f, 0x0a, 0x1f, 0x02, 0x02}; // Year (kana)
wim	30:033048611c01	90	//const char udc_ch_mo[] = {0x0f, 0x09, 0x0f, 0x09, 0x0f, 0x09, 0x09, 0x13}; // Month (kana)
wim	30:033048611c01	91	//const char udc_ch_dy[] = {0x1f, 0x11, 0x11, 0x1f, 0x11, 0x11, 0x11, 0x1F}; // Day (kana)
wim	30:033048611c01	92	//const char udc_ch_mi[] = {0x0C, 0x0a, 0x11, 0x1f, 0x09, 0x09, 0x09, 0x13}; // minute (kana)
wim	30:033048611c01	93
wim	30:033048611c01	94
wim	21:9eb628d9e164	95	/** Create a TextLCD_Base interface
wim	15:b70ebfffb258	96	*
wim	21:9eb628d9e164	97	* @param type Sets the panel size/addressing mode (default = LCD16x2)
wim	21:9eb628d9e164	98	* @param ctrl LCD controller (default = HD44780)
wim	15:b70ebfffb258	99	*/
wim	21:9eb628d9e164	100	TextLCD_Base::TextLCD_Base(LCDType type, LCDCtrl ctrl) : _type(type), _ctrl(ctrl) {
wim	30:033048611c01	101
wim	30:033048611c01	102	// Extract LCDType data
wim	30:033048611c01	103
wim	30:033048611c01	104	// Columns encoded in b7..b0
wim	30:033048611c01	105	_nr_cols = (_type & 0xFF);
wim	30:033048611c01	106
wim	30:033048611c01	107	// Rows encoded in b15..b8
wim	30:033048611c01	108	_nr_rows = ((_type >> 8) & 0xFF);
wim	30:033048611c01	109
wim	30:033048611c01	110	// Addressing mode encoded in b19..b16
wim	30:033048611c01	111	_addr_mode = _type & LCD_T_ADR_MSK;
wim	14:0c32b66b14b8	112	}
wim	14:0c32b66b14b8	113
wim	14:0c32b66b14b8	114
wim	21:9eb628d9e164	115	/** Init the LCD Controller(s)
wim	21:9eb628d9e164	116	* Clear display
wim	21:9eb628d9e164	117	*/
wim	21:9eb628d9e164	118	void TextLCD_Base::_init() {
wim	15:b70ebfffb258	119
wim	15:b70ebfffb258	120	// Select and configure second LCD controller when needed
wim	15:b70ebfffb258	121	if(_type==LCD40x4) {
wim	30:033048611c01	122	_ctrl_idx=_LCDCtrl_1; // Select 2nd controller
wim	30:033048611c01	123	_initCtrl(); // Init 2nd controller
wim	15:b70ebfffb258	124	}
wim	15:b70ebfffb258	125
wim	15:b70ebfffb258	126	// Select and configure primary LCD controller
wim	27:22d5086f6ba6	127	_ctrl_idx=_LCDCtrl_0; // Select primary controller
wim	19:c747b9e2e7b8	128	_initCtrl(); // Init primary controller
wim	28:30fa94f7341c	129
wim	28:30fa94f7341c	130	// Reset Cursor location
wim	28:30fa94f7341c	131	_row=0;
wim	30:033048611c01	132	_column=0;
wim	30:033048611c01	133
wim	15:b70ebfffb258	134	}
wim	15:b70ebfffb258	135
wim	21:9eb628d9e164	136	/** Init the LCD controller
wim	21:9eb628d9e164	137	* 4-bit mode, number of lines, fonttype, no cursor etc
wim	30:033048611c01	138	*
wim	30:033048611c01	139	* Note: some configurations are commented out because they have not yet been tested due to lack of hardware
wim	21:9eb628d9e164	140	*/
wim	21:9eb628d9e164	141	void TextLCD_Base::_initCtrl() {
wim	15:b70ebfffb258	142
wim	26:bd897a001012	143	this->_setRS(false); // command mode
wim	13:24506ba22480	144
wim	26:bd897a001012	145	wait_ms(20); // Wait 20ms to ensure powered up
simon	1:ac48b187213c	146
wim	17:652ab113bc2e	147	// send "Display Settings" 3 times (Only top nibble of 0x30 as we've got 4-bit bus)
wim	17:652ab113bc2e	148	for (int i=0; i<3; i++) {
wim	17:652ab113bc2e	149	_writeNibble(0x3);
wim	20:e0da005a777f	150	wait_ms(15); // This command takes 1.64ms, so wait for it
wim	17:652ab113bc2e	151	}
wim	17:652ab113bc2e	152	_writeNibble(0x2); // 4-bit mode
wim	17:652ab113bc2e	153	wait_us(40); // most instructions take 40us
wim	18:bd65dc10f27f	154
wim	18:bd65dc10f27f	155	// Display is now in 4-bit mode
wim	27:22d5086f6ba6	156	// Note: 4 bit mode is ignored for native SPI and I2C devices
wim	25:6162b31128c9	157
wim	29:a3663151aa65	158	// Device specific initialisations: DC/DC converter to generate VLCD or VLED, number of lines etc
wim	19:c747b9e2e7b8	159	switch (_ctrl) {
wim	29:a3663151aa65	160	case KS0078:
wim	29:a3663151aa65	161
wim	29:a3663151aa65	162	// Initialise Display configuration
wim	29:a3663151aa65	163	switch (_type) {
wim	29:a3663151aa65	164	case LCD8x1: //8x1 is a regular 1 line display
wim	29:a3663151aa65	165	case LCD8x2B: //8x2B is a special case of 16x1
wim	29:a3663151aa65	166	// case LCD12x1:
wim	29:a3663151aa65	167	case LCD16x1:
wim	30:033048611c01	168	// case LCD20x1:
wim	29:a3663151aa65	169	case LCD24x1:
wim	30:033048611c01	170	_writeCommand(0x20); // Function set 001 DL N RE(0) DH REV
wim	30:033048611c01	171	// DL=0 (4 bits bus)
wim	30:033048611c01	172	// N=0 (1 line)
wim	30:033048611c01	173	// RE=0 (Dis. Extended Regs, special mode for KS0078)
wim	30:033048611c01	174	// DH=0 (Disp shift=disable, special mode for KS0078)
wim	30:033048611c01	175	// REV=0 (Reverse=Normal, special mode for KS0078)
wim	30:033048611c01	176
wim	30:033048611c01	177
wim	30:033048611c01	178
wim	29:a3663151aa65	179	break;
wim	29:a3663151aa65	180
wim	30:033048611c01	181	// case LCD12x3D: // Special mode for KS0078
wim	30:033048611c01	182	// case LCD12x3D1: // Special mode for KS0078
wim	30:033048611c01	183	// case LCD12x4D: // Special mode for KS0078
wim	30:033048611c01	184	// case LCD16x3D:
wim	30:033048611c01	185	// case LCD16x4D:
wim	30:033048611c01	186	// case LCD24x3D: // Special mode for KS0078
wim	30:033048611c01	187	// case LCD24x3D1: // Special mode for KS0078
wim	30:033048611c01	188	case LCD24x4D: // Special mode for KS0078
wim	30:033048611c01	189
wim	30:033048611c01	190	_writeCommand(0x2A); // Function set 001 DL N RE(0) DH REV
wim	29:a3663151aa65	191	// DL=0 (4 bits bus)
wim	30:033048611c01	192	// N=1 (Dont care for KS0078 in 4-line mode)
wim	29:a3663151aa65	193	// RE=0 (Dis. Extended Regs, special mode for KS0078)
wim	30:033048611c01	194	// DH=1 (Disp shift=enable, special mode for KS0078)
wim	30:033048611c01	195	// REV=0 (Reverse=Normal, special mode for KS0078)
wim	29:a3663151aa65	196
wim	30:033048611c01	197	_writeCommand(0x2E); // Function set 001 DL N RE(1) BE 0
wim	29:a3663151aa65	198	// DL=0 (4 bits bus)
wim	30:033048611c01	199	// N=1 (Dont care for KS0078 in 4-line mode)
wim	29:a3663151aa65	200	// RE=1 (Ena Extended Regs, special mode for KS0078)
wim	30:033048611c01	201	// BE=1 (Blink Enable, CG/SEG RAM, special mode for KS0078)
wim	30:033048611c01	202	// X=0 (Reverse, special mode for KS0078)
wim	29:a3663151aa65	203
wim	29:a3663151aa65	204	_writeCommand(0x09); // Ext Function set 0000 1 FW BW NW
wim	29:a3663151aa65	205	// FW=0 (5-dot font, special mode for KS0078)
wim	29:a3663151aa65	206	// BW=0 (Cur BW invert disable, special mode for KS0078)
wim	29:a3663151aa65	207	// NW=1 (4 Line, special mode for KS0078)
wim	29:a3663151aa65	208
wim	30:033048611c01	209	_writeCommand(0x2A); // Function set 001 DL N RE(0) DH REV
wim	29:a3663151aa65	210	// DL=0 (4 bits bus)
wim	30:033048611c01	211	// N=1 (Dont care for KS0078 in 4 line mode)
wim	29:a3663151aa65	212	// RE=0 (Dis. Extended Regs, special mode for KS0078)
wim	30:033048611c01	213	// DH=1 (Disp shift enable, special mode for KS0078)
wim	30:033048611c01	214	// REV=0 (Reverse normal, special mode for KS0078)
wim	30:033048611c01	215	break;
wim	30:033048611c01	216
wim	29:a3663151aa65	217	default:
wim	30:033048611c01	218	// All other LCD types are initialised as 2 Line displays (including LCD16x1C and LCD40x4)
wim	30:033048611c01	219	_writeCommand(0x28); // Function set 001 DL N RE(0) DH REV
wim	30:033048611c01	220	// DL=0 (4 bits bus)
wim	30:033048611c01	221	// Note: 4 bit mode is ignored for native SPI and I2C devices
wim	30:033048611c01	222	// N=1 (2 lines)
wim	30:033048611c01	223	// RE=0 (Dis. Extended Regs, special mode for KS0078)
wim	30:033048611c01	224	// DH=0 (Disp shift=disable, special mode for KS0078)
wim	30:033048611c01	225	// REV=0 (Reverse=Normal, special mode for KS0078)
wim	30:033048611c01	226
wim	29:a3663151aa65	227	break;
wim	29:a3663151aa65	228	} // switch type
wim	29:a3663151aa65	229
wim	29:a3663151aa65	230	break; // case KS0078 Controller
wim	29:a3663151aa65	231
wim	26:bd897a001012	232	case ST7032_3V3:
wim	26:bd897a001012	233	// ST7032 controller: Initialise Voltage booster for VLCD. VDD=3V3
wim	27:22d5086f6ba6	234
wim	29:a3663151aa65	235	// Initialise Display configuration
wim	29:a3663151aa65	236	switch (_type) {
wim	29:a3663151aa65	237	case LCD8x1: //8x1 is a regular 1 line display
wim	29:a3663151aa65	238	case LCD8x2B: //8x2B is a special case of 16x1
wim	29:a3663151aa65	239	// case LCD12x1:
wim	29:a3663151aa65	240	case LCD16x1:
wim	30:033048611c01	241	// case LCD20x1:
wim	29:a3663151aa65	242	case LCD24x1:
wim	29:a3663151aa65	243	_writeCommand(0x21); //FUNCTION SET 4 bit, N=0 1-line display mode, 5*7dot, Select Instruction Set = 1
wim	29:a3663151aa65	244	//Note: 4 bit mode is ignored for native SPI and I2C devices
wim	29:a3663151aa65	245
wim	29:a3663151aa65	246	_writeCommand(0x1C); //Internal OSC frequency adjustment Framefreq=183HZ, bias will be 1/4
wim	28:30fa94f7341c	247
wim	29:a3663151aa65	248	_writeCommand(0x73); //Contrast control low byte
wim	28:30fa94f7341c	249
wim	29:a3663151aa65	250	_writeCommand(0x57); //booster circuit is turned on. /ICON display off. /Contrast control high byte
wim	29:a3663151aa65	251	wait_ms(10); // Wait 10ms to ensure powered up
wim	29:a3663151aa65	252
wim	29:a3663151aa65	253	_writeCommand(0x6C); //Follower control
wim	29:a3663151aa65	254	wait_ms(10); // Wait 10ms to ensure powered up
wim	28:30fa94f7341c	255
wim	29:a3663151aa65	256	_writeCommand(0x20); //FUNCTION SET 4 bit, N=0 1-line display mode, 5*7dot, Return to Instruction Set = 0
wim	29:a3663151aa65	257	//Note: 4 bit mode is ignored for native SPI and I2C devices
wim	30:033048611c01	258	break;
wim	29:a3663151aa65	259
wim	30:033048611c01	260	case LCD12x3D: // Special mode for PCF2116
wim	30:033048611c01	261	case LCD12x3D1: // Special mode for PCF2116
wim	30:033048611c01	262	case LCD12x4D: // Special mode for PCF2116
wim	30:033048611c01	263	case LCD24x4D: // Special mode for KS0078
wim	30:033048611c01	264	error("Error: LCD Controller type does not support this Display type\n\r");
wim	29:a3663151aa65	265	break;
wim	29:a3663151aa65	266
wim	29:a3663151aa65	267	default:
wim	29:a3663151aa65	268	// All other LCD types are initialised as 2 Line displays
wim	29:a3663151aa65	269	_writeCommand(0x29); //FUNCTION SET 4 bit, N=1 2-line display mode, 5*7dot, Select Instruction Set = 1
wim	29:a3663151aa65	270	//Note: 4 bit mode is ignored for native SPI and I2C devices
wim	29:a3663151aa65	271
wim	29:a3663151aa65	272	_writeCommand(0x1C); //Internal OSC frequency adjustment Framefreq=183HZ, bias will be 1/4
wim	29:a3663151aa65	273
wim	29:a3663151aa65	274	_writeCommand(0x73); //Contrast control low byte
wim	29:a3663151aa65	275
wim	29:a3663151aa65	276	_writeCommand(0x57); //booster circuit is turned on. /ICON display off. /Contrast control high byte
wim	29:a3663151aa65	277	wait_ms(10); // Wait 10ms to ensure powered up
wim	28:30fa94f7341c	278
wim	29:a3663151aa65	279	_writeCommand(0x6C); //Follower control
wim	29:a3663151aa65	280	wait_ms(10); // Wait 10ms to ensure powered up
wim	29:a3663151aa65	281
wim	29:a3663151aa65	282	_writeCommand(0x28); //FUNCTION SET 4 bit, N=1 2-line display mode, 5*7dot, Return to Instruction Set = 0
wim	29:a3663151aa65	283	//Note: 4 bit mode is ignored for native SPI and I2C devices
wim	29:a3663151aa65	284	} // switch type
wim	29:a3663151aa65	285
wim	29:a3663151aa65	286	break; // case ST7032_3V3 Controller
wim	26:bd897a001012	287
wim	26:bd897a001012	288	case ST7032_5V:
wim	26:bd897a001012	289	// ST7032 controller: Disable Voltage booster for VLCD. VDD=5V
wim	29:a3663151aa65	290
wim	29:a3663151aa65	291	// Initialise Display configuration
wim	29:a3663151aa65	292	switch (_type) {
wim	29:a3663151aa65	293	case LCD8x1: //8x1 is a regular 1 line display
wim	29:a3663151aa65	294	case LCD8x2B: //8x2B is a special case of 16x1
wim	29:a3663151aa65	295	// case LCD12x1:
wim	29:a3663151aa65	296	case LCD16x1:
wim	30:033048611c01	297	// case LCD20x1:
wim	29:a3663151aa65	298	case LCD24x1:
wim	29:a3663151aa65	299	_writeCommand(0x21); //FUNCTION SET 4 bit, N=0 1-line display mode, 5*7dot, Select Instruction Set = 1
wim	29:a3663151aa65	300	//Note: 4 bit mode is ignored for native SPI and I2C devices
wim	29:a3663151aa65	301
wim	29:a3663151aa65	302	_writeCommand(0x1C); //Internal OSC frequency adjustment Framefreq=183HZ, bias will be 1/4
wim	29:a3663151aa65	303
wim	29:a3663151aa65	304	_writeCommand(0x73); //Contrast control low byte
wim	28:30fa94f7341c	305
wim	29:a3663151aa65	306	_writeCommand(0x53); //booster circuit is turned off. /ICON display off. /Contrast control high byte
wim	29:a3663151aa65	307	wait_ms(10); // Wait 10ms to ensure powered up
wim	29:a3663151aa65	308
wim	29:a3663151aa65	309	_writeCommand(0x6C); //Follower control
wim	29:a3663151aa65	310	wait_ms(10); // Wait 10ms to ensure powered up
wim	29:a3663151aa65	311
wim	29:a3663151aa65	312	_writeCommand(0x20); //FUNCTION SET 4 bit, N=0 1-line display mode, 5*7dot, Return to Instruction Set = 0
wim	29:a3663151aa65	313	//Note: 4 bit mode is ignored for native SPI and I2C devices
wim	30:033048611c01	314	break;
wim	29:a3663151aa65	315
wim	30:033048611c01	316	case LCD12x3D: // Special mode for PCF2116
wim	30:033048611c01	317	case LCD12x3D1: // Special mode for PCF2116
wim	30:033048611c01	318	case LCD12x4D: // Special mode for PCF2116
wim	30:033048611c01	319	case LCD24x4D: // Special mode for KS0078
wim	30:033048611c01	320	error("Error: LCD Controller type does not support this Display type\n\r");
wim	29:a3663151aa65	321	break;
wim	28:30fa94f7341c	322
wim	29:a3663151aa65	323	default:
wim	29:a3663151aa65	324	// All other LCD types are initialised as 2 Line displays
wim	29:a3663151aa65	325	_writeCommand(0x29); //FUNCTION SET 4 bit, N=1 2-line display mode, 5*7dot, Select Instruction Set = 1
wim	29:a3663151aa65	326	//Note: 4 bit mode is ignored for native SPI and I2C devices
wim	29:a3663151aa65	327
wim	29:a3663151aa65	328	_writeCommand(0x1C); //Internal OSC frequency adjustment Framefreq=183HZ, bias will be 1/4
wim	29:a3663151aa65	329
wim	29:a3663151aa65	330	_writeCommand(0x73); //Contrast control low byte
wim	29:a3663151aa65	331
wim	29:a3663151aa65	332	_writeCommand(0x53); //booster circuit is turned off. /ICON display off. /Contrast control high byte
wim	29:a3663151aa65	333	wait_ms(10); // Wait 10ms to ensure powered up
wim	29:a3663151aa65	334
wim	29:a3663151aa65	335	_writeCommand(0x6C); //Follower control
wim	29:a3663151aa65	336	wait_ms(10); // Wait 10ms to ensure powered up
wim	29:a3663151aa65	337
wim	29:a3663151aa65	338	_writeCommand(0x28); //FUNCTION SET 4 bit, N=1 2-line display mode, 5*7dot, Return to Instruction Set = 0
wim	29:a3663151aa65	339	//Note: 4 bit mode is ignored for native SPI and I2C devices
wim	29:a3663151aa65	340	} // switch type
wim	29:a3663151aa65	341
wim	29:a3663151aa65	342	break; // case ST7032_5V Controller
wim	28:30fa94f7341c	343
wim	29:a3663151aa65	344	case ST7036:
wim	29:a3663151aa65	345	// ST7036 controller: Initialise Voltage booster for VLCD. VDD=5V
wim	29:a3663151aa65	346	// Note: supports 1,2 or 3 lines
wim	28:30fa94f7341c	347
wim	29:a3663151aa65	348	// Initialise Display configuration
wim	29:a3663151aa65	349	switch (_type) {
wim	29:a3663151aa65	350	case LCD8x1: //8x1 is a regular 1 line display
wim	30:033048611c01	351	case LCD8x2B: //8x2D is a special case of 16x1
wim	29:a3663151aa65	352	// case LCD12x1:
wim	29:a3663151aa65	353	case LCD16x1:
wim	29:a3663151aa65	354	case LCD24x1:
wim	29:a3663151aa65	355	_writeCommand(0x21); // 4-bit Databus, N=0 1 Line, DH=0 5x7font, IS2,IS1 = 01 Select Instruction Set = 1
wim	29:a3663151aa65	356	wait_ms(30); // > 26,3ms
wim	29:a3663151aa65	357	_writeCommand(0x14); // Bias: 1/5, 1 or 2-Lines LCD
wim	29:a3663151aa65	358	// _writeCommand(0x15); // Bias: 1/5, 3-Lines LCD
wim	29:a3663151aa65	359	wait_ms(30); // > 26,3ms
wim	29:a3663151aa65	360	_writeCommand(0x55); // Icon off, Booster on, Set Contrast C5, C4
wim	29:a3663151aa65	361	wait_ms(30); // > 26,3ms
wim	29:a3663151aa65	362	_writeCommand(0x6D); // Voltagefollower On, Ampl ratio Rab2, Rab1, Rab0
wim	29:a3663151aa65	363	wait_ms(200); // > 200ms!
wim	29:a3663151aa65	364	_writeCommand(0x78); // Set Contrast C3, C2, C1, C0
wim	29:a3663151aa65	365	wait_ms(30); // > 26,3ms
wim	29:a3663151aa65	366	_writeCommand(0x20); // Return to Instruction Set = 0
wim	29:a3663151aa65	367	wait_ms(50);
wim	29:a3663151aa65	368	break;
wim	29:a3663151aa65	369	#if(0)
wim	29:a3663151aa65	370	// case LCD12x3:
wim	29:a3663151aa65	371	case LCD16x3:
wim	29:a3663151aa65	372	_writeCommand(0x29); // 4-bit Databus, N=1 2 Line, DH=0 5x7font, IS2,IS1 = 01 Select Instruction Set = 1
wim	29:a3663151aa65	373	wait_ms(30); // > 26,3ms
wim	29:a3663151aa65	374	// _writeCommand(0x14); // Bias: 1/5, 1 or 2-Lines LCD
wim	29:a3663151aa65	375	_writeCommand(0x15); // Bias: 1/5, 3-Lines LCD
wim	29:a3663151aa65	376	wait_ms(30); // > 26,3ms
wim	29:a3663151aa65	377	_writeCommand(0x55); // Icon off, Booster on, Set Contrast C5, C4
wim	29:a3663151aa65	378	wait_ms(30); // > 26,3ms
wim	29:a3663151aa65	379	_writeCommand(0x6D); // Voltagefollower On, Ampl ratio Rab2, Rab1, Rab0
wim	29:a3663151aa65	380	wait_ms(200); // > 200ms!
wim	29:a3663151aa65	381	_writeCommand(0x78); // Set Contrast C3, C2, C1, C0
wim	29:a3663151aa65	382	wait_ms(30); // > 26,3ms
wim	29:a3663151aa65	383	_writeCommand(0x28); // Return to Instruction Set = 0
wim	29:a3663151aa65	384	wait_ms(50);
wim	29:a3663151aa65	385	break;
wim	29:a3663151aa65	386	#endif
wim	30:033048611c01	387
wim	30:033048611c01	388	case LCD12x3D: // Special mode for PCF2116
wim	30:033048611c01	389	case LCD12x3D1: // Special mode for PCF2116
wim	30:033048611c01	390	case LCD12x4D: // Special mode for PCF2116
wim	30:033048611c01	391	case LCD24x4D: // Special mode for KS0078
wim	30:033048611c01	392	error("Error: LCD Controller type does not support this Display type\n\r");
wim	30:033048611c01	393	break;
wim	30:033048611c01	394
wim	29:a3663151aa65	395	default:
wim	30:033048611c01	396	// All other LCD types are initialised as 2 Line displays (including LCD16x1C and LCD40x4)
wim	29:a3663151aa65	397	_writeCommand(0x29); // 4-bit Databus, N=1 2 Line, DH=0 5x7font, IS2,IS1 = 01 Select Instruction Set = 1
wim	29:a3663151aa65	398	wait_ms(30); // > 26,3ms
wim	29:a3663151aa65	399	_writeCommand(0x14); // Bias: 1/5, 2-Lines LCD
wim	29:a3663151aa65	400	// _writeCommand(0x15); // Bias: 1/5, 3-Lines LCD
wim	29:a3663151aa65	401	wait_ms(30); // > 26,3ms
wim	29:a3663151aa65	402	_writeCommand(0x55); // Icon off, Booster on, Set Contrast C5, C4
wim	29:a3663151aa65	403	wait_ms(30); // > 26,3ms
wim	29:a3663151aa65	404	_writeCommand(0x6D); // Voltagefollower On, Ampl ratio Rab2, Rab1, Rab0
wim	29:a3663151aa65	405	wait_ms(200); // > 200ms!
wim	29:a3663151aa65	406	_writeCommand(0x78); // Set Contrast C3, C2, C1, C0
wim	29:a3663151aa65	407	wait_ms(30); // > 26,3ms
wim	29:a3663151aa65	408	_writeCommand(0x28); // Return to Instruction Set = 0
wim	29:a3663151aa65	409	wait_ms(50);
wim	29:a3663151aa65	410	} // switch type
wim	29:a3663151aa65	411
wim	29:a3663151aa65	412	break; // case ST7036 Controller
wim	29:a3663151aa65	413
wim	30:033048611c01	414	case PCF2113_3V3:
wim	30:033048611c01	415	// PCF2113 controller: Initialise Voltage booster for VLCD. VDD=3V3
wim	30:033048611c01	416	// Note1: The PCF21XX family of controllers has several types that dont have an onboard voltage generator for V-LCD.
wim	30:033048611c01	417	// You must supply this LCD voltage externally and not enable VGen.
wim	30:033048611c01	418	// Note2: The early versions of PCF2116 controllers (eg PCF2116C) can not generate sufficiently negative voltage for the LCD at a VDD of 3V3.
wim	30:033048611c01	419	// You must supply this voltage externally and not enable VGen or you must use a higher VDD (e.g. 5V) and enable VGen.
wim	30:033048611c01	420	// More recent versions of the controller (eg PCF2116K) have an improved VGen that will work with 3V3.
wim	30:033048611c01	421	// Note3: See datasheet, members of the PCF21XX family support different numbers of rows/columns. Not all can support 3 or 4 rows.
wim	30:033048611c01	422	// Note4: See datasheet, you can also disable VGen by connecting Vo to VDD. VLCD will then be used directly as LCD voltage.
wim	30:033048611c01	423	// Note5: PCF2113 is different wrt to VLCD generator !
wim	30:033048611c01	424	// Note6: See datasheet, the PCF21XX-C and PCF21XX-K use a non-standard character set. This may result is strange text when not corrected..
wim	30:033048611c01	425
wim	29:a3663151aa65	426	// Initialise Display configuration
wim	29:a3663151aa65	427	switch (_type) {
wim	29:a3663151aa65	428	// case LCD12x1:
wim	29:a3663151aa65	429	case LCD24x1:
wim	30:033048611c01	430	_writeCommand(0x21); //FUNCTION SET 4 bit, M=0 1-line/24 chars display mode, extended IS
wim	30:033048611c01	431	//Note: 4 bit mode is ignored for I2C mode
wim	30:033048611c01	432	_writeCommand(0x9F); //Set VLCD A : VGen for Chars and Icons
wim	30:033048611c01	433	_writeCommand(0xDF); //Set VLCD B : VGen for Icons Only
wim	30:033048611c01	434	_writeCommand(0x20); //FUNCTION SET 4 bit, M=0 1-line/24 chars display mode
wim	30:033048611c01	435	// _writeCommand(0x24); //FUNCTION SET 4 bit, M=1 2-line/12 chars display mode, standard IS
wim	30:033048611c01	436
wim	30:033048611c01	437	wait_ms(10); // Wait 10ms to ensure powered up
wim	30:033048611c01	438	break;
wim	30:033048611c01	439
wim	30:033048611c01	440	//Tested OK for PCF2113
wim	30:033048611c01	441	//Note: PCF2113 is different wrt to VLCD generator !
wim	30:033048611c01	442	case LCD12x2:
wim	30:033048611c01	443	_writeCommand(0x21); //FUNCTION SET 4 bit, M=0 1-line/24 chars display mode, extended IS
wim	30:033048611c01	444	//Note: 4 bit mode is ignored for I2C mode
wim	30:033048611c01	445	_writeCommand(0x9F); //Set VLCD A : VGen for Chars and Icons
wim	30:033048611c01	446	_writeCommand(0xDF); //Set VLCD B : VGen for Icons Only
wim	30:033048611c01	447	// _writeCommand(0x20); //FUNCTION SET 4 bit, M=0 1-line/24 chars display mode
wim	30:033048611c01	448	_writeCommand(0x24); //FUNCTION SET 4 bit, M=1 2-line/12 chars display mode, standard IS
wim	30:033048611c01	449
wim	30:033048611c01	450	wait_ms(10); // Wait 10ms to ensure powered up
wim	30:033048611c01	451	break;
wim	30:033048611c01	452
wim	30:033048611c01	453	default:
wim	30:033048611c01	454	error("Error: LCD Controller type does not support this Display type\n\r");
wim	30:033048611c01	455	break;
wim	30:033048611c01	456
wim	30:033048611c01	457	} // switch type
wim	30:033048611c01	458
wim	30:033048611c01	459	break; // case PCF2113_3V3 Controller
wim	30:033048611c01	460
wim	30:033048611c01	461
wim	30:033048611c01	462
wim	30:033048611c01	463	case PCF2116_3V3:
wim	30:033048611c01	464	// PCF2116 controller: Initialise Voltage booster for VLCD. VDD=3V3
wim	30:033048611c01	465	// Note1: The PCF21XX family of controllers has several types that dont have an onboard voltage generator for V-LCD.
wim	30:033048611c01	466	// You must supply this LCD voltage externally and not enable VGen.
wim	30:033048611c01	467	// Note2: The early versions of PCF2116 controllers (eg PCF2116C) can not generate sufficiently negative voltage for the LCD at a VDD of 3V3.
wim	30:033048611c01	468	// You must supply this voltage externally and not enable VGen or you must use a higher VDD (e.g. 5V) and enable VGen.
wim	30:033048611c01	469	// More recent versions of the controller (eg PCF2116K) have an improved VGen that will work with 3V3.
wim	30:033048611c01	470	// Note3: See datasheet, members of the PCF21XX family support different numbers of rows/columns. Not all can support 3 or 4 rows.
wim	30:033048611c01	471	// Note4: See datasheet, you can also disable VGen by connecting Vo to VDD. VLCD will then be used directly as LCD voltage.
wim	30:033048611c01	472	// Note5: PCF2113 is different wrt to VLCD generator !
wim	30:033048611c01	473	// Note6: See datasheet, the PCF21XX-C and PCF21XX-K use a non-standard character set. This may result is strange text when not corrected..
wim	30:033048611c01	474
wim	30:033048611c01	475	// Initialise Display configuration
wim	30:033048611c01	476	switch (_type) {
wim	30:033048611c01	477	// case LCD12x1:
wim	30:033048611c01	478	// case LCD12x2:
wim	30:033048611c01	479	case LCD24x1:
wim	30:033048611c01	480	_writeCommand(0x22); //FUNCTION SET 4 bit, N=0/M=0 1-line/24 chars display mode, G=1 VGen on
wim	29:a3663151aa65	481	//Note: 4 bit mode is ignored for I2C mode
wim	29:a3663151aa65	482	wait_ms(10); // Wait 10ms to ensure powered up
wim	29:a3663151aa65	483	break;
wim	29:a3663151aa65	484
wim	30:033048611c01	485	case LCD12x3D:
wim	30:033048611c01	486	case LCD12x3D1:
wim	30:033048611c01	487	case LCD12x4D:
wim	30:033048611c01	488	_writeCommand(0x2E); //FUNCTION SET 4 bit, N=1/M=1 4-line/12 chars display mode, G=1 VGen on
wim	29:a3663151aa65	489	//Note: 4 bit mode is ignored for I2C mode
wim	29:a3663151aa65	490	wait_ms(10); // Wait 10ms to ensure powered up
wim	29:a3663151aa65	491	break;
wim	30:033048611c01	492
wim	30:033048611c01	493	case LCD24x2:
wim	30:033048611c01	494	_writeCommand(0x2A); //FUNCTION SET 4 bit, N=1/M=0 2-line/24 chars display mode, G=1 VGen on
wim	29:a3663151aa65	495	//Note: 4 bit mode is ignored for I2C mode
wim	30:033048611c01	496	wait_ms(10); // Wait 10ms to ensure powered up
wim	29:a3663151aa65	497
wim	30:033048611c01	498	default:
wim	30:033048611c01	499	error("Error: LCD Controller type does not support this Display type\n\r");
wim	30:033048611c01	500	break;
wim	30:033048611c01	501
wim	29:a3663151aa65	502	} // switch type
wim	29:a3663151aa65	503
wim	30:033048611c01	504	break; // case PCF2116_3V3 Controller
wim	29:a3663151aa65	505
wim	29:a3663151aa65	506	// case PCF21XX_5V:
wim	30:033048611c01	507	// PCF21XX controller: No Voltage generator for VLCD. VDD=5V
wim	30:033048611c01	508	//@TODO
wim	29:a3663151aa65	509
wim	19:c747b9e2e7b8	510	case WS0010:
wim	19:c747b9e2e7b8	511	// WS0010 OLED controller: Initialise DC/DC Voltage converter for LEDs
wim	30:033048611c01	512	// Note1: Identical to RS0010
wim	30:033048611c01	513	// Note2: supports 1 or 2 lines (and 16x100 graphics)
wim	30:033048611c01	514	// supports 4 fonts (English/Japanese (default), Western European-I, English/Russian, Western European-II)
wim	19:c747b9e2e7b8	515	// Cursor/Disp shift set 0001 SC RL 0 0
wim	19:c747b9e2e7b8	516	//
wim	30:033048611c01	517	// Mode and Power set 0001 GC PWR 1 1
wim	19:c747b9e2e7b8	518	// GC = 0 (Graph Mode=1, Char Mode=0)
wim	30:033048611c01	519	// PWR = 1 (DC/DC On/Off)
wim	30:033048611c01	520
wim	30:033048611c01	521	//@Todo: This may be needed to enable a warm reboot
wim	25:6162b31128c9	522	//_writeCommand(0x13); // DC/DC off
wim	30:033048611c01	523	//wait_ms(10); // Wait 10ms to ensure powered down
wim	28:30fa94f7341c	524	_writeCommand(0x17); // DC/DC on
wim	30:033048611c01	525	wait_ms(10); // Wait 10ms to ensure powered up
wim	29:a3663151aa65	526
wim	29:a3663151aa65	527	// Initialise Display configuration
wim	29:a3663151aa65	528	switch (_type) {
wim	29:a3663151aa65	529	case LCD8x1: //8x1 is a regular 1 line display
wim	29:a3663151aa65	530	case LCD8x2B: //8x2B is a special case of 16x1
wim	29:a3663151aa65	531	// case LCD12x1:
wim	29:a3663151aa65	532	case LCD16x1:
wim	30:033048611c01	533	case LCD24x1:
wim	30:033048611c01	534	_writeCommand(0x20); // Function set 001 DL N F FT1 FT0
wim	30:033048611c01	535	// DL=0 (4 bits bus)
wim	30:033048611c01	536	// N=0 (1 line)
wim	30:033048611c01	537	// F=0 (5x7 dots font)
wim	30:033048611c01	538	// FT=00 (00 = Engl/Jap, 01 = WestEur1, 10 = Engl/Russian, 11 = WestEur2
wim	30:033048611c01	539	break;
wim	30:033048611c01	540
wim	30:033048611c01	541	case LCD12x3D: // Special mode for PCF2116
wim	30:033048611c01	542	case LCD12x3D1: // Special mode for PCF2116
wim	30:033048611c01	543	case LCD12x4D: // Special mode for PCF2116
wim	30:033048611c01	544	case LCD24x4D: // Special mode for KS0078
wim	30:033048611c01	545	error("Error: LCD Controller type does not support this Display type\n\r");
wim	29:a3663151aa65	546	break;
wim	29:a3663151aa65	547
wim	29:a3663151aa65	548	default:
wim	30:033048611c01	549	// All other LCD types are initialised as 2 Line displays (including LCD16x1C and LCD40x4)
wim	30:033048611c01	550	_writeCommand(0x28); // Function set 001 DL N F FT1 FT0
wim	30:033048611c01	551	// DL=0 (4 bits bus)
wim	30:033048611c01	552	// N=1 (2 lines)
wim	30:033048611c01	553	// F=0 (5x7 dots font)
wim	30:033048611c01	554	// FT=00 (00 = Engl/Jap, 01 = WestEur1, 10 = Engl/Russian, 11 = WestEur2
wim	30:033048611c01	555
wim	30:033048611c01	556
wim	29:a3663151aa65	557	break;
wim	29:a3663151aa65	558	} // switch type
wim	29:a3663151aa65	559
wim	29:a3663151aa65	560	break; // case WS0100 Controller
wim	29:a3663151aa65	561
wim	19:c747b9e2e7b8	562	default:
wim	29:a3663151aa65	563	// Devices fully compatible to HD44780 that do not use any DC/DC Voltage converters but external VLCD
wim	10:dd9b3a696acd	564
wim	29:a3663151aa65	565	// Initialise Display configuration
wim	29:a3663151aa65	566	switch (_type) {
wim	29:a3663151aa65	567	case LCD8x1: //8x1 is a regular 1 line display
wim	29:a3663151aa65	568	case LCD8x2B: //8x2B is a special case of 16x1
wim	29:a3663151aa65	569	// case LCD12x1:
wim	29:a3663151aa65	570	case LCD16x1:
wim	30:033048611c01	571	// case LCD20x1:
wim	29:a3663151aa65	572	case LCD24x1:
wim	30:033048611c01	573	// case LCD40x1:
wim	29:a3663151aa65	574	_writeCommand(0x20); // Function set 001 DL N F - -
wim	29:a3663151aa65	575	// DL=0 (4 bits bus)
wim	29:a3663151aa65	576	// N=0 (1 line)
wim	29:a3663151aa65	577	// F=0 (5x7 dots font)
wim	29:a3663151aa65	578	break;
wim	29:a3663151aa65	579
wim	30:033048611c01	580
wim	30:033048611c01	581	// case LCD12x3D: // Special mode for PCF2116
wim	30:033048611c01	582	// case LCD12x3D1: // Special mode for PCF2116
wim	30:033048611c01	583	// case LCD12x4D: // Special mode for PCF2116
wim	30:033048611c01	584	// case LCD24x3D: // Special mode for KS0078
wim	30:033048611c01	585	case LCD24x4D: // Special mode for KS0078
wim	30:033048611c01	586	error("Error: LCD Controller type does not support this Display type\n\r");
wim	30:033048611c01	587	break;
wim	30:033048611c01	588
wim	30:033048611c01	589	// All other LCD types are initialised as 2 Line displays (including LCD16x1C and LCD40x4)
wim	29:a3663151aa65	590	default:
wim	29:a3663151aa65	591	_writeCommand(0x28); // Function set 001 DL N F - -
wim	29:a3663151aa65	592	// DL=0 (4 bits bus)
wim	29:a3663151aa65	593	// Note: 4 bit mode is ignored for native SPI and I2C devices
wim	29:a3663151aa65	594	// N=1 (2 lines)
wim	29:a3663151aa65	595	// F=0 (5x7 dots font, only option for 2 line display)
wim	29:a3663151aa65	596	// - (Don't care)
wim	29:a3663151aa65	597
wim	29:a3663151aa65	598	break;
wim	29:a3663151aa65	599	} // switch type
wim	10:dd9b3a696acd	600
wim	29:a3663151aa65	601	break; // case default Controller
wim	29:a3663151aa65	602
wim	29:a3663151aa65	603	} // switch Controller specific initialisations
wim	29:a3663151aa65	604
wim	10:dd9b3a696acd	605
wim	30:033048611c01	606	// Controller general initialisations
wim	28:30fa94f7341c	607	_writeCommand(0x01); // cls, and set cursor to 0
wim	28:30fa94f7341c	608	wait_ms(10); // The CLS command takes 1.64 ms.
wim	28:30fa94f7341c	609	// Since we are not using the Busy flag, Lets be safe and take 10 ms
wim	28:30fa94f7341c	610
wim	28:30fa94f7341c	611	_writeCommand(0x02); // Return Home
wim	28:30fa94f7341c	612	// Cursor Home, DDRAM Address to Origin
wim	28:30fa94f7341c	613
wim	28:30fa94f7341c	614	_writeCommand(0x06); // Entry Mode 0000 0 1 I/D S
wim	13:24506ba22480	615	// Cursor Direction and Display Shift
wim	28:30fa94f7341c	616	// I/D=1 (Cur incr)
wim	28:30fa94f7341c	617	// S=0 (No display shift)
wim	10:dd9b3a696acd	618
wim	29:a3663151aa65	619	_writeCommand(0x14); // Cursor or Display shift 0001 S/C R/L x x
wim	29:a3663151aa65	620	// S/C=0 Cursor moves
wim	29:a3663151aa65	621	// R/L=1 Right
wim	29:a3663151aa65	622	//
wim	29:a3663151aa65	623
wim	13:24506ba22480	624	// _writeCommand(0x0C); // Display Ctrl 0000 1 D C B
wim	17:652ab113bc2e	625	// // Display On, Cursor Off, Blink Off
wim	21:9eb628d9e164	626	setCursor(CurOff_BlkOff);
wim	21:9eb628d9e164	627	setMode(DispOn);
simon	1:ac48b187213c	628	}
simon	1:ac48b187213c	629
wim	8:03116f75b66e	630
wim	21:9eb628d9e164	631	/** Clear the screen, Cursor home.
wim	21:9eb628d9e164	632	*/
wim	21:9eb628d9e164	633	void TextLCD_Base::cls() {
wim	15:b70ebfffb258	634
wim	15:b70ebfffb258	635	// Select and configure second LCD controller when needed
wim	15:b70ebfffb258	636	if(_type==LCD40x4) {
wim	21:9eb628d9e164	637	_ctrl_idx=_LCDCtrl_1; // Select 2nd controller
wim	15:b70ebfffb258	638
wim	15:b70ebfffb258	639	// Second LCD controller Cursor always Off
wim	21:9eb628d9e164	640	_setCursorAndDisplayMode(_currentMode, CurOff_BlkOff);
wim	15:b70ebfffb258	641
wim	15:b70ebfffb258	642	// Second LCD controller Clearscreen
wim	27:22d5086f6ba6	643	_writeCommand(0x01); // cls, and set cursor to 0
wim	29:a3663151aa65	644	wait_ms(10); // The CLS command takes 1.64 ms.
wim	29:a3663151aa65	645	// Since we are not using the Busy flag, Lets be safe and take 10 ms
wim	15:b70ebfffb258	646
wim	21:9eb628d9e164	647	_ctrl_idx=_LCDCtrl_0; // Select primary controller
wim	15:b70ebfffb258	648	}
wim	15:b70ebfffb258	649
wim	15:b70ebfffb258	650	// Primary LCD controller Clearscreen
wim	27:22d5086f6ba6	651	_writeCommand(0x01); // cls, and set cursor to 0
wim	29:a3663151aa65	652	wait_ms(10); // The CLS command takes 1.64 ms.
wim	29:a3663151aa65	653	// Since we are not using the Busy flag, Lets be safe and take 10 ms
wim	15:b70ebfffb258	654
wim	15:b70ebfffb258	655	// Restore cursormode on primary LCD controller when needed
wim	15:b70ebfffb258	656	if(_type==LCD40x4) {
wim	17:652ab113bc2e	657	_setCursorAndDisplayMode(_currentMode,_currentCursor);
wim	15:b70ebfffb258	658	}
wim	15:b70ebfffb258	659
wim	29:a3663151aa65	660	setAddress(0, 0); // Reset Cursor location
wim	30:033048611c01	661	// Note: this is needed because some displays (eg PCF21XX) don't use line 0 in the '3 Line' mode.
simon	1:ac48b187213c	662	}
simon	1:ac48b187213c	663
wim	29:a3663151aa65	664	/** Locate cursor to a screen column and row
wim	29:a3663151aa65	665	*
wim	29:a3663151aa65	666	* @param column The horizontal position from the left, indexed from 0
wim	29:a3663151aa65	667	* @param row The vertical position from the top, indexed from 0
wim	29:a3663151aa65	668	*/
wim	21:9eb628d9e164	669	void TextLCD_Base::locate(int column, int row) {
wim	15:b70ebfffb258	670
wim	15:b70ebfffb258	671	// setAddress() does all the heavy lifting:
wim	15:b70ebfffb258	672	// check column and row sanity,
wim	15:b70ebfffb258	673	// switch controllers for LCD40x4 if needed
wim	15:b70ebfffb258	674	// switch cursor for LCD40x4 if needed
wim	15:b70ebfffb258	675	// set the new memory address to show cursor at correct location
wim	15:b70ebfffb258	676	setAddress(column, row);
wim	15:b70ebfffb258	677
wim	15:b70ebfffb258	678	}
wim	30:033048611c01	679
wim	15:b70ebfffb258	680
wim	21:9eb628d9e164	681	/** Write a single character (Stream implementation)
wim	21:9eb628d9e164	682	*/
wim	21:9eb628d9e164	683	int TextLCD_Base::_putc(int value) {
wim	15:b70ebfffb258	684	int addr;
wim	15:b70ebfffb258	685
wim	15:b70ebfffb258	686	if (value == '\n') {
wim	15:b70ebfffb258	687	//No character to write
wim	15:b70ebfffb258	688
wim	15:b70ebfffb258	689	//Update Cursor
wim	15:b70ebfffb258	690	_column = 0;
wim	15:b70ebfffb258	691	_row++;
wim	15:b70ebfffb258	692	if (_row >= rows()) {
wim	15:b70ebfffb258	693	_row = 0;
wim	15:b70ebfffb258	694	}
wim	15:b70ebfffb258	695	}
wim	15:b70ebfffb258	696	else {
wim	15:b70ebfffb258	697	//Character to write
wim	15:b70ebfffb258	698	_writeData(value);
wim	15:b70ebfffb258	699
wim	15:b70ebfffb258	700	//Update Cursor
wim	15:b70ebfffb258	701	_column++;
wim	15:b70ebfffb258	702	if (_column >= columns()) {
wim	15:b70ebfffb258	703	_column = 0;
wim	15:b70ebfffb258	704	_row++;
wim	15:b70ebfffb258	705	if (_row >= rows()) {
wim	15:b70ebfffb258	706	_row = 0;
wim	15:b70ebfffb258	707	}
wim	15:b70ebfffb258	708	}
wim	15:b70ebfffb258	709	} //else
wim	15:b70ebfffb258	710
wim	15:b70ebfffb258	711	//Set next memoryaddress, make sure cursor blinks at next location
wim	15:b70ebfffb258	712	addr = getAddress(_column, _row);
wim	15:b70ebfffb258	713	_writeCommand(0x80 \| addr);
wim	15:b70ebfffb258	714
wim	15:b70ebfffb258	715	return value;
wim	15:b70ebfffb258	716	}
wim	15:b70ebfffb258	717
wim	15:b70ebfffb258	718
wim	16:c276b75e6585	719	// get a single character (Stream implementation)
wim	21:9eb628d9e164	720	int TextLCD_Base::_getc() {
simon	1:ac48b187213c	721	return -1;
simon	1:ac48b187213c	722	}
simon	1:ac48b187213c	723
wim	14:0c32b66b14b8	724
wim	17:652ab113bc2e	725	// Write a nibble using the 4-bit interface
wim	21:9eb628d9e164	726	void TextLCD_Base::_writeNibble(int value) {
wim	17:652ab113bc2e	727
wim	17:652ab113bc2e	728	// Enable is Low
wim	21:9eb628d9e164	729	this->_setEnable(true);
wim	21:9eb628d9e164	730	this->_setData(value & 0x0F); // Low nibble
wim	17:652ab113bc2e	731	wait_us(1); // Data setup time
wim	21:9eb628d9e164	732	this->_setEnable(false);
wim	17:652ab113bc2e	733	wait_us(1); // Datahold time
wim	17:652ab113bc2e	734
wim	17:652ab113bc2e	735	// Enable is Low
wim	17:652ab113bc2e	736	}
wim	17:652ab113bc2e	737
wim	17:652ab113bc2e	738
wim	16:c276b75e6585	739	// Write a byte using the 4-bit interface
wim	21:9eb628d9e164	740	void TextLCD_Base::_writeByte(int value) {
wim	15:b70ebfffb258	741
wim	15:b70ebfffb258	742	// Enable is Low
wim	21:9eb628d9e164	743	this->_setEnable(true);
wim	21:9eb628d9e164	744	this->_setData(value >> 4); // High nibble
wim	15:b70ebfffb258	745	wait_us(1); // Data setup time
wim	21:9eb628d9e164	746	this->_setEnable(false);
wim	15:b70ebfffb258	747	wait_us(1); // Data hold time
wim	15:b70ebfffb258	748
wim	21:9eb628d9e164	749	this->_setEnable(true);
wim	21:9eb628d9e164	750	this->_setData(value >> 0); // Low nibble
wim	15:b70ebfffb258	751	wait_us(1); // Data setup time
wim	21:9eb628d9e164	752	this->_setEnable(false);
wim	15:b70ebfffb258	753	wait_us(1); // Datahold time
wim	15:b70ebfffb258	754
wim	15:b70ebfffb258	755	// Enable is Low
wim	15:b70ebfffb258	756
simon	1:ac48b187213c	757	}
simon	1:ac48b187213c	758
wim	21:9eb628d9e164	759	// Write a command byte to the LCD controller
wim	21:9eb628d9e164	760	void TextLCD_Base::_writeCommand(int command) {
wim	15:b70ebfffb258	761
wim	21:9eb628d9e164	762	this->_setRS(false);
wim	16:c276b75e6585	763	wait_us(1); // Data setup time for RS
wim	15:b70ebfffb258	764
wim	21:9eb628d9e164	765	this->_writeByte(command);
wim	15:b70ebfffb258	766	wait_us(40); // most instructions take 40us
simon	1:ac48b187213c	767	}
simon	1:ac48b187213c	768
wim	21:9eb628d9e164	769	// Write a data byte to the LCD controller
wim	21:9eb628d9e164	770	void TextLCD_Base::_writeData(int data) {
wim	15:b70ebfffb258	771
wim	21:9eb628d9e164	772	this->_setRS(true);
wim	16:c276b75e6585	773	wait_us(1); // Data setup time for RS
wim	15:b70ebfffb258	774
wim	21:9eb628d9e164	775	this->_writeByte(data);
wim	15:b70ebfffb258	776	wait_us(40); // data writes take 40us
simon	1:ac48b187213c	777	}
simon	1:ac48b187213c	778
wim	8:03116f75b66e	779
wim	8:03116f75b66e	780	#if (0)
wim	16:c276b75e6585	781	// This is the original _address() method.
wim	8:03116f75b66e	782	// It is confusing since it returns the memoryaddress or-ed with the set memorycommand 0x80.
wim	8:03116f75b66e	783	// Left it in here for compatibility with older code. New applications should use getAddress() instead.
wim	8:03116f75b66e	784	//
wim	21:9eb628d9e164	785	int TextLCD_Base::_address(int column, int row) {
simon	1:ac48b187213c	786	switch (_type) {
simon	1:ac48b187213c	787	case LCD20x4:
simon	1:ac48b187213c	788	switch (row) {
simon	1:ac48b187213c	789	case 0:
simon	1:ac48b187213c	790	return 0x80 + column;
simon	1:ac48b187213c	791	case 1:
simon	1:ac48b187213c	792	return 0xc0 + column;
simon	1:ac48b187213c	793	case 2:
simon	1:ac48b187213c	794	return 0x94 + column;
simon	1:ac48b187213c	795	case 3:
simon	1:ac48b187213c	796	return 0xd4 + column;
simon	1:ac48b187213c	797	}
simon	1:ac48b187213c	798	case LCD16x2B:
simon	4:bf5b706f8d32	799	return 0x80 + (row * 40) + column;
simon	1:ac48b187213c	800	case LCD16x2:
simon	1:ac48b187213c	801	case LCD20x2:
simon	1:ac48b187213c	802	default:
simon	4:bf5b706f8d32	803	return 0x80 + (row * 0x40) + column;
simon	1:ac48b187213c	804	}
simon	1:ac48b187213c	805	}
wim	8:03116f75b66e	806	#endif
wim	8:03116f75b66e	807
wim	8:03116f75b66e	808
wim	16:c276b75e6585	809	// This replaces the original _address() method.
wim	8:03116f75b66e	810	// Left it in here for compatibility with older code. New applications should use getAddress() instead.
wim	21:9eb628d9e164	811	int TextLCD_Base::_address(int column, int row) {
wim	8:03116f75b66e	812	return 0x80 \| getAddress(column, row);
wim	8:03116f75b66e	813	}
wim	8:03116f75b66e	814
wim	30:033048611c01	815
wim	30:033048611c01	816	// This is new method to return the memory address based on row, column and displaytype.
wim	30:033048611c01	817	//
wim	30:033048611c01	818	/** Return the memoryaddress of screen column and row location
wim	30:033048611c01	819	*
wim	30:033048611c01	820	* @param column The horizontal position from the left, indexed from 0
wim	30:033048611c01	821	* @param row The vertical position from the top, indexed from 0
wim	30:033048611c01	822	* @param return The memoryaddress of screen column and row location
wim	30:033048611c01	823	*
wim	30:033048611c01	824	* Note: some configurations are commented out because they have not yet been tested due to lack of hardware
wim	30:033048611c01	825	*/
wim	30:033048611c01	826	int TextLCD_Base::getAddress(int column, int row) {
wim	30:033048611c01	827
wim	30:033048611c01	828	switch (_addr_mode) {
wim	30:033048611c01	829
wim	30:033048611c01	830	case LCD_T_A:
wim	30:033048611c01	831	//Default addressing mode for 1, 2 and 4 rows (except 40x4)
wim	30:033048611c01	832	//The two available rows are split and stacked on top of eachother. Addressing for 3rd and 4th line continues where lines 1 and 2 were split.
wim	30:033048611c01	833	//Displays top rows when less than four are used.
wim	30:033048611c01	834	switch (row) {
wim	30:033048611c01	835	case 0:
wim	30:033048611c01	836	return 0x00 + column;
wim	30:033048611c01	837	case 1:
wim	30:033048611c01	838	return 0x40 + column;
wim	30:033048611c01	839	case 2:
wim	30:033048611c01	840	return 0x00 + _nr_cols + column;
wim	30:033048611c01	841	case 3:
wim	30:033048611c01	842	return 0x40 + _nr_cols + column;
wim	30:033048611c01	843	// Should never get here.
wim	30:033048611c01	844	default:
wim	30:033048611c01	845	return 0x00;
wim	30:033048611c01	846	}
wim	30:033048611c01	847
wim	30:033048611c01	848	case LCD_T_B:
wim	30:033048611c01	849	// LCD8x2B is a special layout of LCD16x1
wim	30:033048611c01	850	if (row==0)
wim	30:033048611c01	851	return 0x00 + column;
wim	30:033048611c01	852	else
wim	30:033048611c01	853	// return _nr_cols + column;
wim	30:033048611c01	854	return 0x08 + column;
wim	30:033048611c01	855
wim	30:033048611c01	856	case LCD_T_C:
wim	30:033048611c01	857	// LCD16x1C is a special layout of LCD8x2
wim	30:033048611c01	858	if (column<8)
wim	30:033048611c01	859	return 0x00 + column;
wim	30:033048611c01	860	else
wim	30:033048611c01	861	return 0x40 + (column - 8);
wim	30:033048611c01	862
wim	30:033048611c01	863	// Not sure about this one, seems wrong.
wim	30:033048611c01	864	// Left in for compatibility with original library
wim	30:033048611c01	865	// case LCD16x2B:
wim	30:033048611c01	866	// return 0x00 + (row * 40) + column;
wim	30:033048611c01	867
wim	30:033048611c01	868
wim	30:033048611c01	869	case LCD_T_D:
wim	30:033048611c01	870	//Alternate addressing mode for 3 and 4 row displays (except 40x4). Used by PCF21XX, KS0078
wim	30:033048611c01	871	//The 4 available rows start at a hardcoded address.
wim	30:033048611c01	872	//Displays top rows when less than four are used.
wim	30:033048611c01	873	switch (row) {
wim	30:033048611c01	874	case 0:
wim	30:033048611c01	875	return 0x00 + column;
wim	30:033048611c01	876	case 1:
wim	30:033048611c01	877	return 0x20 + column;
wim	30:033048611c01	878	case 2:
wim	30:033048611c01	879	return 0x40 + column;
wim	30:033048611c01	880	case 3:
wim	30:033048611c01	881	return 0x60 + column;
wim	30:033048611c01	882	// Should never get here.
wim	30:033048611c01	883	default:
wim	30:033048611c01	884	return 0x00;
wim	30:033048611c01	885	}
wim	30:033048611c01	886
wim	30:033048611c01	887	case LCD_T_D1:
wim	30:033048611c01	888	//Alternate addressing mode for 3 row displays. Used by PCF21XX, KS0078
wim	30:033048611c01	889	//The 4 available rows start at a hardcoded address.
wim	30:033048611c01	890	//Skips top row of 4 row display and starts display at row 1
wim	30:033048611c01	891	switch (row) {
wim	30:033048611c01	892	case 0:
wim	30:033048611c01	893	return 0x20 + column;
wim	30:033048611c01	894	case 1:
wim	30:033048611c01	895	return 0x40 + column;
wim	30:033048611c01	896	case 2:
wim	30:033048611c01	897	return 0x60 + column;
wim	30:033048611c01	898	// Should never get here.
wim	30:033048611c01	899	default:
wim	30:033048611c01	900	return 0x00;
wim	30:033048611c01	901	}
wim	30:033048611c01	902
wim	30:033048611c01	903	case LCD_T_E:
wim	30:033048611c01	904	// LCD40x4 is a special case since it has 2 controllers.
wim	30:033048611c01	905	// Each controller is configured as 40x2 (Type A)
wim	30:033048611c01	906	if (row<2) {
wim	30:033048611c01	907	// Test to see if we need to switch between controllers
wim	30:033048611c01	908	if (_ctrl_idx != _LCDCtrl_0) {
wim	30:033048611c01	909
wim	30:033048611c01	910	// Second LCD controller Cursor Off
wim	30:033048611c01	911	_setCursorAndDisplayMode(_currentMode, CurOff_BlkOff);
wim	30:033048611c01	912
wim	30:033048611c01	913	// Select primary controller
wim	30:033048611c01	914	_ctrl_idx = _LCDCtrl_0;
wim	30:033048611c01	915
wim	30:033048611c01	916	// Restore cursormode on primary LCD controller
wim	30:033048611c01	917	_setCursorAndDisplayMode(_currentMode, _currentCursor);
wim	30:033048611c01	918	}
wim	30:033048611c01	919
wim	30:033048611c01	920	return 0x00 + (row * 0x40) + column;
wim	30:033048611c01	921	}
wim	30:033048611c01	922	else {
wim	30:033048611c01	923
wim	30:033048611c01	924	// Test to see if we need to switch between controllers
wim	30:033048611c01	925	if (_ctrl_idx != _LCDCtrl_1) {
wim	30:033048611c01	926	// Primary LCD controller Cursor Off
wim	30:033048611c01	927	_setCursorAndDisplayMode(_currentMode, CurOff_BlkOff);
wim	30:033048611c01	928
wim	30:033048611c01	929	// Select secondary controller
wim	30:033048611c01	930	_ctrl_idx = _LCDCtrl_1;
wim	30:033048611c01	931
wim	30:033048611c01	932	// Restore cursormode on secondary LCD controller
wim	30:033048611c01	933	_setCursorAndDisplayMode(_currentMode, _currentCursor);
wim	30:033048611c01	934	}
wim	30:033048611c01	935
wim	30:033048611c01	936	return 0x00 + ((row-2) * 0x40) + column;
wim	30:033048611c01	937	}
wim	30:033048611c01	938
wim	30:033048611c01	939	// Should never get here.
wim	30:033048611c01	940	default:
wim	30:033048611c01	941	return 0x00;
wim	30:033048611c01	942	}
wim	30:033048611c01	943	}
wim	30:033048611c01	944
wim	30:033048611c01	945
wim	29:a3663151aa65	946	/** Set the memoryaddress of screen column and row location
wim	29:a3663151aa65	947	*
wim	29:a3663151aa65	948	* @param column The horizontal position from the left, indexed from 0
wim	29:a3663151aa65	949	* @param row The vertical position from the top, indexed from 0
wim	29:a3663151aa65	950	*/
wim	21:9eb628d9e164	951	void TextLCD_Base::setAddress(int column, int row) {
wim	15:b70ebfffb258	952
wim	15:b70ebfffb258	953	// Sanity Check column
wim	15:b70ebfffb258	954	if (column < 0) {
wim	15:b70ebfffb258	955	_column = 0;
wim	15:b70ebfffb258	956	}
wim	15:b70ebfffb258	957	else if (column >= columns()) {
wim	15:b70ebfffb258	958	_column = columns() - 1;
wim	15:b70ebfffb258	959	} else _column = column;
wim	8:03116f75b66e	960
wim	15:b70ebfffb258	961	// Sanity Check row
wim	15:b70ebfffb258	962	if (row < 0) {
wim	15:b70ebfffb258	963	_row = 0;
wim	15:b70ebfffb258	964	}
wim	15:b70ebfffb258	965	else if (row >= rows()) {
wim	15:b70ebfffb258	966	_row = rows() - 1;
wim	15:b70ebfffb258	967	} else _row = row;
wim	15:b70ebfffb258	968
wim	15:b70ebfffb258	969
wim	15:b70ebfffb258	970	// Compute the memory address
wim	15:b70ebfffb258	971	// For LCD40x4: switch controllers if needed
wim	15:b70ebfffb258	972	// switch cursor if needed
wim	15:b70ebfffb258	973	int addr = getAddress(_column, _row);
wim	8:03116f75b66e	974
wim	13:24506ba22480	975	_writeCommand(0x80 \| addr);
wim	8:03116f75b66e	976	}
simon	1:ac48b187213c	977
wim	29:a3663151aa65	978
wim	29:a3663151aa65	979	/** Return the number of columns
wim	29:a3663151aa65	980	*
wim	29:a3663151aa65	981	* @param return The number of columns
wim	30:033048611c01	982	*
wim	30:033048611c01	983	* Note: some configurations are commented out because they have not yet been tested due to lack of hardware
wim	29:a3663151aa65	984	*/
wim	21:9eb628d9e164	985	int TextLCD_Base::columns() {
wim	30:033048611c01	986
wim	30:033048611c01	987	// Columns encoded in b7..b0
wim	30:033048611c01	988	//return (_type & 0xFF);
wim	31:ef31cd8a00d1	989	return _nr_cols;
simon	1:ac48b187213c	990	}
simon	1:ac48b187213c	991
wim	29:a3663151aa65	992	/** Return the number of rows
wim	29:a3663151aa65	993	*
wim	29:a3663151aa65	994	* @param return The number of rows
wim	30:033048611c01	995	*
wim	30:033048611c01	996	* Note: some configurations are commented out because they have not yet been tested due to lack of hardware
wim	29:a3663151aa65	997	*/
wim	21:9eb628d9e164	998	int TextLCD_Base::rows() {
wim	30:033048611c01	999
wim	30:033048611c01	1000	// Rows encoded in b15..b8
wim	30:033048611c01	1001	//return ((_type >> 8) & 0xFF);
wim	30:033048611c01	1002	return _nr_rows;
simon	1:ac48b187213c	1003	}
wim	10:dd9b3a696acd	1004
wim	29:a3663151aa65	1005	/** Set the Cursormode
wim	29:a3663151aa65	1006	*
wim	29:a3663151aa65	1007	* @param cursorMode The Cursor mode (CurOff_BlkOff, CurOn_BlkOff, CurOff_BlkOn, CurOn_BlkOn)
wim	29:a3663151aa65	1008	*/
wim	21:9eb628d9e164	1009	void TextLCD_Base::setCursor(LCDCursor cursorMode) {
wim	15:b70ebfffb258	1010
wim	17:652ab113bc2e	1011	// Save new cursor mode, needed when 2 controllers are in use or when display is switched off/on
wim	17:652ab113bc2e	1012	_currentCursor = cursorMode;
wim	10:dd9b3a696acd	1013
wim	17:652ab113bc2e	1014	// Configure only current LCD controller
wim	31:ef31cd8a00d1	1015	_setCursorAndDisplayMode(_currentMode, _currentCursor);
wim	15:b70ebfffb258	1016	}
wim	15:b70ebfffb258	1017
wim	29:a3663151aa65	1018	/** Set the Displaymode
wim	29:a3663151aa65	1019	*
wim	29:a3663151aa65	1020	* @param displayMode The Display mode (DispOff, DispOn)
wim	29:a3663151aa65	1021	*/
wim	21:9eb628d9e164	1022	void TextLCD_Base::setMode(LCDMode displayMode) {
wim	17:652ab113bc2e	1023
wim	17:652ab113bc2e	1024	// Save new displayMode, needed when 2 controllers are in use or when cursor is changed
wim	17:652ab113bc2e	1025	_currentMode = displayMode;
wim	15:b70ebfffb258	1026
wim	17:652ab113bc2e	1027	// Select and configure second LCD controller when needed
wim	17:652ab113bc2e	1028	if(_type==LCD40x4) {
wim	21:9eb628d9e164	1029	if (_ctrl_idx==_LCDCtrl_0) {
wim	17:652ab113bc2e	1030	// Configure primary LCD controller
wim	17:652ab113bc2e	1031	_setCursorAndDisplayMode(_currentMode, _currentCursor);
wim	11:9ec02df863a1	1032
wim	17:652ab113bc2e	1033	// Select 2nd controller
wim	21:9eb628d9e164	1034	_ctrl_idx=_LCDCtrl_1;
wim	17:652ab113bc2e	1035
wim	17:652ab113bc2e	1036	// Configure secondary LCD controller
wim	21:9eb628d9e164	1037	_setCursorAndDisplayMode(_currentMode, CurOff_BlkOff);
wim	11:9ec02df863a1	1038
wim	17:652ab113bc2e	1039	// Restore current controller
wim	21:9eb628d9e164	1040	_ctrl_idx=_LCDCtrl_0;
wim	17:652ab113bc2e	1041	}
wim	17:652ab113bc2e	1042	else {
wim	17:652ab113bc2e	1043	// Select primary controller
wim	21:9eb628d9e164	1044	_ctrl_idx=_LCDCtrl_0;
wim	17:652ab113bc2e	1045
wim	17:652ab113bc2e	1046	// Configure primary LCD controller
wim	21:9eb628d9e164	1047	_setCursorAndDisplayMode(_currentMode, CurOff_BlkOff);
wim	17:652ab113bc2e	1048
wim	17:652ab113bc2e	1049	// Restore current controller
wim	21:9eb628d9e164	1050	_ctrl_idx=_LCDCtrl_1;
wim	11:9ec02df863a1	1051
wim	17:652ab113bc2e	1052	// Configure secondary LCD controller
wim	17:652ab113bc2e	1053	_setCursorAndDisplayMode(_currentMode, _currentCursor);
wim	10:dd9b3a696acd	1054	}
wim	17:652ab113bc2e	1055	}
wim	17:652ab113bc2e	1056	else {
wim	17:652ab113bc2e	1057	// Configure primary LCD controller
wim	17:652ab113bc2e	1058	_setCursorAndDisplayMode(_currentMode, _currentCursor);
wim	30:033048611c01	1059	}
wim	17:652ab113bc2e	1060	}
wim	17:652ab113bc2e	1061
wim	17:652ab113bc2e	1062
wim	29:a3663151aa65	1063	/** Low level method to restore the cursortype and display mode for current controller
wim	29:a3663151aa65	1064	*/
wim	21:9eb628d9e164	1065	void TextLCD_Base::_setCursorAndDisplayMode(LCDMode displayMode, LCDCursor cursorType) {
wim	17:652ab113bc2e	1066
wim	17:652ab113bc2e	1067	// Configure current LCD controller
wim	17:652ab113bc2e	1068	_writeCommand(0x08 \| displayMode \| cursorType);
wim	10:dd9b3a696acd	1069	}
wim	10:dd9b3a696acd	1070
wim	29:a3663151aa65	1071	/** Set the Backlight mode
wim	29:a3663151aa65	1072	*
wim	29:a3663151aa65	1073	* @param backlightMode The Backlight mode (LightOff, LightOn)
wim	29:a3663151aa65	1074	*/
wim	21:9eb628d9e164	1075	void TextLCD_Base::setBacklight(LCDBacklight backlightMode) {
wim	20:e0da005a777f	1076
wim	20:e0da005a777f	1077	if (backlightMode == LightOn) {
wim	21:9eb628d9e164	1078	this->_setBL(true);
wim	20:e0da005a777f	1079	}
wim	20:e0da005a777f	1080	else {
wim	21:9eb628d9e164	1081	this->_setBL(false);
wim	20:e0da005a777f	1082	}
wim	20:e0da005a777f	1083	}
wim	20:e0da005a777f	1084
wim	29:a3663151aa65	1085	/** Set User Defined Characters
wim	29:a3663151aa65	1086	*
wim	29:a3663151aa65	1087	* @param unsigned char c The Index of the UDC (0..7)
wim	29:a3663151aa65	1088	* @param char *udc_data The bitpatterns for the UDC (8 bytes of 5 significant bits)
wim	29:a3663151aa65	1089	*/
wim	21:9eb628d9e164	1090	void TextLCD_Base::setUDC(unsigned char c, char *udc_data) {
wim	15:b70ebfffb258	1091
wim	15:b70ebfffb258	1092	// Select and configure second LCD controller when needed
wim	15:b70ebfffb258	1093	if(_type==LCD40x4) {
wim	19:c747b9e2e7b8	1094	_LCDCtrl_Idx current_ctrl_idx = _ctrl_idx; // Temp save current controller
wim	15:b70ebfffb258	1095
wim	15:b70ebfffb258	1096	// Select primary controller
wim	21:9eb628d9e164	1097	_ctrl_idx=_LCDCtrl_0;
wim	15:b70ebfffb258	1098
wim	15:b70ebfffb258	1099	// Configure primary LCD controller
wim	15:b70ebfffb258	1100	_setUDC(c, udc_data);
wim	15:b70ebfffb258	1101
wim	15:b70ebfffb258	1102	// Select 2nd controller
wim	21:9eb628d9e164	1103	_ctrl_idx=_LCDCtrl_1;
wim	15:b70ebfffb258	1104
wim	15:b70ebfffb258	1105	// Configure secondary LCD controller
wim	15:b70ebfffb258	1106	_setUDC(c, udc_data);
wim	11:9ec02df863a1	1107
wim	15:b70ebfffb258	1108	// Restore current controller
wim	19:c747b9e2e7b8	1109	_ctrl_idx=current_ctrl_idx;
wim	15:b70ebfffb258	1110	}
wim	15:b70ebfffb258	1111	else {
wim	15:b70ebfffb258	1112	// Configure primary LCD controller
wim	15:b70ebfffb258	1113	_setUDC(c, udc_data);
wim	15:b70ebfffb258	1114	}
wim	15:b70ebfffb258	1115
wim	15:b70ebfffb258	1116	}
wim	15:b70ebfffb258	1117
wim	29:a3663151aa65	1118	/** Low level method to store user defined characters for current controller
wim	29:a3663151aa65	1119	*/
wim	21:9eb628d9e164	1120	void TextLCD_Base::_setUDC(unsigned char c, char *udc_data) {
wim	15:b70ebfffb258	1121
wim	15:b70ebfffb258	1122	// Select CG RAM for current LCD controller
wim	15:b70ebfffb258	1123	_writeCommand(0x40 + ((c & 0x07) << 3)); //Set CG-RAM address,
wim	15:b70ebfffb258	1124	//8 sequential locations needed per UDC
wim	15:b70ebfffb258	1125	// Store UDC pattern
wim	11:9ec02df863a1	1126	for (int i=0; i<8; i++) {
wim	13:24506ba22480	1127	_writeData(*udc_data++);
wim	11:9ec02df863a1	1128	}
wim	15:b70ebfffb258	1129
wim	15:b70ebfffb258	1130	//Select DD RAM again for current LCD controller
wim	15:b70ebfffb258	1131	int addr = getAddress(_column, _row);
wim	30:033048611c01	1132	_writeCommand(0x80 \| addr);
wim	11:9ec02df863a1	1133	}
wim	21:9eb628d9e164	1134
wim	23:d47f226efb24	1135	//--------- End TextLCD_Base -----------
wim	21:9eb628d9e164	1136
wim	22:35742ec80c24	1137
wim	23:d47f226efb24	1138	//--------- Start TextLCD Bus -----------
wim	21:9eb628d9e164	1139
wim	21:9eb628d9e164	1140	/* Create a TextLCD interface for using regular mbed pins
wim	21:9eb628d9e164	1141	*
wim	21:9eb628d9e164	1142	* @param rs Instruction/data control line
wim	21:9eb628d9e164	1143	* @param e Enable line (clock)
wim	21:9eb628d9e164	1144	* @param d4-d7 Data lines for using as a 4-bit interface
wim	21:9eb628d9e164	1145	* @param type Sets the panel size/addressing mode (default = LCD16x2)
wim	21:9eb628d9e164	1146	* @param bl Backlight control line (optional, default = NC)
wim	21:9eb628d9e164	1147	* @param e2 Enable2 line (clock for second controller, LCD40x4 only)
wim	21:9eb628d9e164	1148	* @param ctrl LCD controller (default = HD44780)
wim	21:9eb628d9e164	1149	*/
wim	21:9eb628d9e164	1150	TextLCD::TextLCD(PinName rs, PinName e,
wim	21:9eb628d9e164	1151	PinName d4, PinName d5, PinName d6, PinName d7,
wim	21:9eb628d9e164	1152	LCDType type, PinName bl, PinName e2, LCDCtrl ctrl) :
wim	21:9eb628d9e164	1153	TextLCD_Base(type, ctrl),
wim	22:35742ec80c24	1154	_rs(rs), _e(e), _d(d4, d5, d6, d7) {
wim	22:35742ec80c24	1155
wim	22:35742ec80c24	1156	// The hardware Backlight pin is optional. Test and make sure whether it exists or not to prevent illegal access.
wim	22:35742ec80c24	1157	if (bl != NC) {
wim	22:35742ec80c24	1158	_bl = new DigitalOut(bl); //Construct new pin
wim	22:35742ec80c24	1159	_bl->write(0); //Deactivate
wim	22:35742ec80c24	1160	}
wim	22:35742ec80c24	1161	else {
wim	22:35742ec80c24	1162	// No Hardware Backlight pin
wim	22:35742ec80c24	1163	_bl = NULL; //Construct dummy pin
wim	22:35742ec80c24	1164	}
wim	22:35742ec80c24	1165
wim	22:35742ec80c24	1166	// The hardware Enable2 pin is only needed for LCD40x4. Test and make sure whether it exists or not to prevent illegal access.
wim	22:35742ec80c24	1167	if (e2 != NC) {
wim	22:35742ec80c24	1168	_e2 = new DigitalOut(e2); //Construct new pin
wim	22:35742ec80c24	1169	_e2->write(0); //Deactivate
wim	22:35742ec80c24	1170	}
wim	22:35742ec80c24	1171	else {
wim	22:35742ec80c24	1172	// No Hardware Enable pin
wim	22:35742ec80c24	1173	_e2 = NULL; //Construct dummy pin
wim	22:35742ec80c24	1174	}
wim	21:9eb628d9e164	1175
wim	21:9eb628d9e164	1176	_init();
wim	21:9eb628d9e164	1177	}
wim	21:9eb628d9e164	1178
wim	29:a3663151aa65	1179	/** Destruct a TextLCD interface for using regular mbed pins
wim	29:a3663151aa65	1180	*
wim	29:a3663151aa65	1181	* @param none
wim	29:a3663151aa65	1182	* @return none
wim	29:a3663151aa65	1183	*/
wim	29:a3663151aa65	1184	TextLCD::~TextLCD() {
wim	29:a3663151aa65	1185	if (_bl != NULL) {delete _bl;} // BL pin
wim	29:a3663151aa65	1186	if (_e2 != NULL) {delete _e2;} // E2 pin
wim	29:a3663151aa65	1187	}
wim	29:a3663151aa65	1188
wim	29:a3663151aa65	1189
wim	22:35742ec80c24	1190	/** Set E pin (or E2 pin)
wim	22:35742ec80c24	1191	* Used for mbed pins, I2C bus expander or SPI shiftregister
wim	22:35742ec80c24	1192	* Default PinName value for E2 is NC, must be used as pointer to avoid issues with mbed lib and DigitalOut pins
wim	22:35742ec80c24	1193	* @param value true or false
wim	22:35742ec80c24	1194	* @return none
wim	22:35742ec80c24	1195	*/
wim	21:9eb628d9e164	1196	void TextLCD::_setEnable(bool value) {
wim	21:9eb628d9e164	1197
wim	22:35742ec80c24	1198	if(_ctrl_idx==_LCDCtrl_0) {
wim	22:35742ec80c24	1199	if (value) {
wim	22:35742ec80c24	1200	_e = 1; // Set E bit
wim	22:35742ec80c24	1201	}
wim	22:35742ec80c24	1202	else {
wim	22:35742ec80c24	1203	_e = 0; // Reset E bit
wim	22:35742ec80c24	1204	}
wim	22:35742ec80c24	1205	}
wim	22:35742ec80c24	1206	else {
wim	22:35742ec80c24	1207	if (value) {
wim	22:35742ec80c24	1208	if (_e2 != NULL) {_e2->write(1);} //Set E2 bit
wim	22:35742ec80c24	1209	}
wim	22:35742ec80c24	1210	else {
wim	22:35742ec80c24	1211	if (_e2 != NULL) {_e2->write(0);} //Reset E2 bit
wim	22:35742ec80c24	1212	}
wim	22:35742ec80c24	1213	}
wim	21:9eb628d9e164	1214	}
wim	21:9eb628d9e164	1215
wim	21:9eb628d9e164	1216	// Set RS pin
wim	21:9eb628d9e164	1217	// Used for mbed pins, I2C bus expander or SPI shiftregister
wim	21:9eb628d9e164	1218	void TextLCD::_setRS(bool value) {
wim	21:9eb628d9e164	1219
wim	22:35742ec80c24	1220	if (value) {
wim	21:9eb628d9e164	1221	_rs = 1; // Set RS bit
wim	22:35742ec80c24	1222	}
wim	22:35742ec80c24	1223	else {
wim	21:9eb628d9e164	1224	_rs = 0; // Reset RS bit
wim	22:35742ec80c24	1225	}
wim	21:9eb628d9e164	1226	}
wim	21:9eb628d9e164	1227
wim	22:35742ec80c24	1228	/** Set BL pin
wim	22:35742ec80c24	1229	* Used for mbed pins, I2C bus expander or SPI shiftregister
wim	22:35742ec80c24	1230	* Default PinName value is NC, must be used as pointer to avoid issues with mbed lib and DigitalOut pins
wim	22:35742ec80c24	1231	* @param value true or false
wim	22:35742ec80c24	1232	* @return none
wim	22:35742ec80c24	1233	*/
wim	21:9eb628d9e164	1234	void TextLCD::_setBL(bool value) {
wim	21:9eb628d9e164	1235
wim	22:35742ec80c24	1236	if (value) {
wim	22:35742ec80c24	1237	if (_bl != NULL) {_bl->write(1);} //Set BL bit
wim	22:35742ec80c24	1238	}
wim	22:35742ec80c24	1239	else {
wim	22:35742ec80c24	1240	if (_bl != NULL) {_bl->write(0);} //Reset BL bit
wim	22:35742ec80c24	1241	}
wim	21:9eb628d9e164	1242
wim	21:9eb628d9e164	1243	}
wim	21:9eb628d9e164	1244
wim	21:9eb628d9e164	1245	// Place the 4bit data on the databus
wim	21:9eb628d9e164	1246	// Used for mbed pins, I2C bus expander or SPI shifregister
wim	21:9eb628d9e164	1247	void TextLCD::_setData(int value) {
wim	21:9eb628d9e164	1248	_d = value & 0x0F; // Write Databits
wim	21:9eb628d9e164	1249	}
wim	22:35742ec80c24	1250
wim	23:d47f226efb24	1251	//----------- End TextLCD ---------------
wim	21:9eb628d9e164	1252
wim	21:9eb628d9e164	1253
wim	23:d47f226efb24	1254	//--------- Start TextLCD_I2C -----------
wim	22:35742ec80c24	1255
wim	26:bd897a001012	1256	/** Create a TextLCD interface using an I2C PC8574 (or PCF8574A) or MCP23008 portexpander
wim	22:35742ec80c24	1257	*
wim	22:35742ec80c24	1258	* @param i2c I2C Bus
wim	26:bd897a001012	1259	* @param deviceAddress I2C slave address (PCF8574, PCF8574A or MCP23008, default = 0x40)
wim	22:35742ec80c24	1260	* @param type Sets the panel size/addressing mode (default = LCD16x2)
wim	22:35742ec80c24	1261	* @param ctrl LCD controller (default = HD44780)
wim	22:35742ec80c24	1262	*/
wim	21:9eb628d9e164	1263	TextLCD_I2C::TextLCD_I2C(I2C *i2c, char deviceAddress, LCDType type, LCDCtrl ctrl) :
wim	21:9eb628d9e164	1264	TextLCD_Base(type, ctrl),
wim	21:9eb628d9e164	1265	_i2c(i2c){
wim	21:9eb628d9e164	1266
wim	22:35742ec80c24	1267	_slaveAddress = deviceAddress & 0xFE;
wim	28:30fa94f7341c	1268
wim	28:30fa94f7341c	1269	// Setup the I2C bus
wim	28:30fa94f7341c	1270	// The max bitrate for PCF8574 is 100kbit, the max bitrate for MCP23008 is 400kbit,
wim	28:30fa94f7341c	1271	// _i2c->frequency(100000);
wim	21:9eb628d9e164	1272
wim	26:bd897a001012	1273	#if (MCP23008==1)
wim	26:bd897a001012	1274	// MCP23008 portexpander Init
wim	27:22d5086f6ba6	1275	_write_register(IODIR, 0x00); // All outputs
wim	27:22d5086f6ba6	1276	_write_register(IPOL, 0x00); // No reverse polarity
wim	27:22d5086f6ba6	1277	_write_register(GPINTEN, 0x00); // No interrupt
wim	27:22d5086f6ba6	1278	_write_register(DEFVAL, 0x00); // Default value to compare against for interrupts
wim	27:22d5086f6ba6	1279	_write_register(INTCON, 0x00); // No interrupt on changes
wim	27:22d5086f6ba6	1280	_write_register(IOCON, 0x00); // Interrupt polarity
wim	27:22d5086f6ba6	1281	_write_register(GPPU, 0x00); // No Pullup
wim	27:22d5086f6ba6	1282	_write_register(INTF, 0x00); //
wim	27:22d5086f6ba6	1283	_write_register(INTCAP, 0x00); //
wim	27:22d5086f6ba6	1284	_write_register(GPIO, 0x00); // Output/Input pins
wim	27:22d5086f6ba6	1285	_write_register(OLAT, 0x00); // Output Latch
wim	26:bd897a001012	1286
wim	21:9eb628d9e164	1287	// Init the portexpander bus
wim	21:9eb628d9e164	1288	_lcd_bus = D_LCD_BUS_DEF;
wim	21:9eb628d9e164	1289
wim	21:9eb628d9e164	1290	// write the new data to the portexpander
wim	26:bd897a001012	1291	_write_register(GPIO, _lcd_bus);
wim	26:bd897a001012	1292	#else
wim	26:bd897a001012	1293	// PCF8574 of PCF8574A portexpander
wim	26:bd897a001012	1294
wim	26:bd897a001012	1295	// Init the portexpander bus
wim	26:bd897a001012	1296	_lcd_bus = D_LCD_BUS_DEF;
wim	26:bd897a001012	1297
wim	26:bd897a001012	1298	// write the new data to the portexpander
wim	21:9eb628d9e164	1299	_i2c->write(_slaveAddress, &_lcd_bus, 1);
wim	26:bd897a001012	1300	#endif
wim	21:9eb628d9e164	1301
wim	30:033048611c01	1302	_init();
wim	21:9eb628d9e164	1303	}
wim	21:9eb628d9e164	1304
wim	21:9eb628d9e164	1305	// Set E pin (or E2 pin)
wim	21:9eb628d9e164	1306	// Used for mbed pins, I2C bus expander or SPI shiftregister
wim	21:9eb628d9e164	1307	void TextLCD_I2C::_setEnable(bool value) {
wim	21:9eb628d9e164	1308
wim	22:35742ec80c24	1309	if(_ctrl_idx==_LCDCtrl_0) {
wim	26:bd897a001012	1310	if (value) {
wim	22:35742ec80c24	1311	_lcd_bus \|= D_LCD_E; // Set E bit
wim	26:bd897a001012	1312	}
wim	26:bd897a001012	1313	else {
wim	22:35742ec80c24	1314	_lcd_bus &= ~D_LCD_E; // Reset E bit
wim	26:bd897a001012	1315	}
wim	22:35742ec80c24	1316	}
wim	22:35742ec80c24	1317	else {
wim	26:bd897a001012	1318	if (value) {
wim	22:35742ec80c24	1319	_lcd_bus \|= D_LCD_E2; // Set E2 bit
wim	26:bd897a001012	1320	}
wim	26:bd897a001012	1321	else {
wim	22:35742ec80c24	1322	_lcd_bus &= ~D_LCD_E2; // Reset E2bit
wim	26:bd897a001012	1323	}
wim	26:bd897a001012	1324	}
wim	26:bd897a001012	1325
wim	26:bd897a001012	1326	#if (MCP23008==1)
wim	26:bd897a001012	1327	// MCP23008 portexpander
wim	26:bd897a001012	1328
wim	26:bd897a001012	1329	// write the new data to the portexpander
wim	26:bd897a001012	1330	_write_register(GPIO, _lcd_bus);
wim	26:bd897a001012	1331	#else
wim	26:bd897a001012	1332	// PCF8574 of PCF8574A portexpander
wim	21:9eb628d9e164	1333
wim	22:35742ec80c24	1334	// write the new data to the I2C portexpander
wim	22:35742ec80c24	1335	_i2c->write(_slaveAddress, &_lcd_bus, 1);
wim	26:bd897a001012	1336	#endif
wim	21:9eb628d9e164	1337	}
wim	21:9eb628d9e164	1338
wim	21:9eb628d9e164	1339	// Set RS pin
wim	21:9eb628d9e164	1340	// Used for mbed pins, I2C bus expander or SPI shiftregister
wim	21:9eb628d9e164	1341	void TextLCD_I2C::_setRS(bool value) {
wim	21:9eb628d9e164	1342
wim	26:bd897a001012	1343	if (value) {
wim	22:35742ec80c24	1344	_lcd_bus \|= D_LCD_RS; // Set RS bit
wim	26:bd897a001012	1345	}
wim	26:bd897a001012	1346	else {
wim	22:35742ec80c24	1347	_lcd_bus &= ~D_LCD_RS; // Reset RS bit
wim	26:bd897a001012	1348	}
wim	26:bd897a001012	1349
wim	26:bd897a001012	1350	#if (MCP23008==1)
wim	26:bd897a001012	1351	// MCP23008 portexpander
wim	26:bd897a001012	1352
wim	26:bd897a001012	1353	// write the new data to the portexpander
wim	26:bd897a001012	1354	_write_register(GPIO, _lcd_bus);
wim	26:bd897a001012	1355	#else
wim	26:bd897a001012	1356	// PCF8574 of PCF8574A portexpander
wim	21:9eb628d9e164	1357
wim	22:35742ec80c24	1358	// write the new data to the I2C portexpander
wim	22:35742ec80c24	1359	_i2c->write(_slaveAddress, &_lcd_bus, 1);
wim	30:033048611c01	1360	#endif
wim	21:9eb628d9e164	1361	}
wim	21:9eb628d9e164	1362
wim	21:9eb628d9e164	1363	// Set BL pin
wim	21:9eb628d9e164	1364	// Used for mbed pins, I2C bus expander or SPI shiftregister
wim	21:9eb628d9e164	1365	void TextLCD_I2C::_setBL(bool value) {
wim	21:9eb628d9e164	1366
wim	26:bd897a001012	1367	if (value) {
wim	21:9eb628d9e164	1368	_lcd_bus \|= D_LCD_BL; // Set BL bit
wim	26:bd897a001012	1369	}
wim	26:bd897a001012	1370	else {
wim	21:9eb628d9e164	1371	_lcd_bus &= ~D_LCD_BL; // Reset BL bit
wim	26:bd897a001012	1372	}
wim	26:bd897a001012	1373
wim	26:bd897a001012	1374	#if (MCP23008==1)
wim	26:bd897a001012	1375	// MCP23008 portexpander
wim	26:bd897a001012	1376
wim	26:bd897a001012	1377	// write the new data to the portexpander
wim	26:bd897a001012	1378	_write_register(GPIO, _lcd_bus);
wim	26:bd897a001012	1379	#else
wim	26:bd897a001012	1380	// PCF8574 of PCF8574A portexpander
wim	21:9eb628d9e164	1381
wim	21:9eb628d9e164	1382	// write the new data to the I2C portexpander
wim	21:9eb628d9e164	1383	_i2c->write(_slaveAddress, &_lcd_bus, 1);
wim	30:033048611c01	1384	#endif
wim	21:9eb628d9e164	1385	}
wim	21:9eb628d9e164	1386
wim	21:9eb628d9e164	1387
wim	21:9eb628d9e164	1388	// Place the 4bit data on the databus
wim	21:9eb628d9e164	1389	// Used for mbed pins, I2C bus expander or SPI shifregister
wim	21:9eb628d9e164	1390	void TextLCD_I2C::_setData(int value) {
wim	21:9eb628d9e164	1391	int data;
wim	22:35742ec80c24	1392
wim	22:35742ec80c24	1393	// Set bit by bit to support any mapping of expander portpins to LCD pins
wim	21:9eb628d9e164	1394
wim	22:35742ec80c24	1395	data = value & 0x0F;
wim	26:bd897a001012	1396	if (data & 0x01){
wim	22:35742ec80c24	1397	_lcd_bus \|= D_LCD_D4; // Set Databit
wim	26:bd897a001012	1398	}
wim	26:bd897a001012	1399	else {
wim	26:bd897a001012	1400	_lcd_bus &= ~D_LCD_D4; // Reset Databit
wim	26:bd897a001012	1401	}
wim	21:9eb628d9e164	1402
wim	26:bd897a001012	1403	if (data & 0x02){
wim	22:35742ec80c24	1404	_lcd_bus \|= D_LCD_D5; // Set Databit
wim	26:bd897a001012	1405	}
wim	26:bd897a001012	1406	else {
wim	26:bd897a001012	1407	_lcd_bus &= ~D_LCD_D5; // Reset Databit
wim	26:bd897a001012	1408	}
wim	21:9eb628d9e164	1409
wim	26:bd897a001012	1410	if (data & 0x04) {
wim	22:35742ec80c24	1411	_lcd_bus \|= D_LCD_D6; // Set Databit
wim	26:bd897a001012	1412	}
wim	26:bd897a001012	1413	else {
wim	26:bd897a001012	1414	_lcd_bus &= ~D_LCD_D6; // Reset Databit
wim	26:bd897a001012	1415	}
wim	21:9eb628d9e164	1416
wim	26:bd897a001012	1417	if (data & 0x08) {
wim	22:35742ec80c24	1418	_lcd_bus \|= D_LCD_D7; // Set Databit
wim	26:bd897a001012	1419	}
wim	26:bd897a001012	1420	else {
wim	26:bd897a001012	1421	_lcd_bus &= ~D_LCD_D7; // Reset Databit
wim	26:bd897a001012	1422	}
wim	21:9eb628d9e164	1423
wim	26:bd897a001012	1424	#if (MCP23008==1)
wim	26:bd897a001012	1425	// MCP23008 portexpander
wim	26:bd897a001012	1426
wim	26:bd897a001012	1427	// write the new data to the portexpander
wim	26:bd897a001012	1428	_write_register(GPIO, _lcd_bus);
wim	26:bd897a001012	1429	#else
wim	26:bd897a001012	1430	// PCF8574 of PCF8574A portexpander
wim	26:bd897a001012	1431
wim	22:35742ec80c24	1432	// write the new data to the I2C portexpander
wim	26:bd897a001012	1433	_i2c->write(_slaveAddress, &_lcd_bus, 1);
wim	26:bd897a001012	1434	#endif
wim	22:35742ec80c24	1435
wim	22:35742ec80c24	1436	}
wim	21:9eb628d9e164	1437
wim	26:bd897a001012	1438	// Write data to MCP23008 I2C portexpander
wim	26:bd897a001012	1439	void TextLCD_I2C::_write_register (int reg, int value) {
wim	26:bd897a001012	1440	char data[] = {reg, value};
wim	26:bd897a001012	1441
wim	30:033048611c01	1442	_i2c->write(_slaveAddress, data, 2);
wim	26:bd897a001012	1443	}
wim	26:bd897a001012	1444
wim	23:d47f226efb24	1445	//---------- End TextLCD_I2C ------------
wim	21:9eb628d9e164	1446
wim	21:9eb628d9e164	1447
wim	28:30fa94f7341c	1448	//--------- Start TextLCD_I2C_N ---------
wim	28:30fa94f7341c	1449
wim	28:30fa94f7341c	1450	/** Create a TextLCD interface using a controller with native I2C interface
wim	28:30fa94f7341c	1451	*
wim	28:30fa94f7341c	1452	* @param i2c I2C Bus
wim	28:30fa94f7341c	1453	* @param deviceAddress I2C slave address (default = 0x7C)
wim	28:30fa94f7341c	1454	* @param type Sets the panel size/addressing mode (default = LCD16x2)
wim	28:30fa94f7341c	1455	* @param bl Backlight control line (optional, default = NC)
wim	28:30fa94f7341c	1456	* @param ctrl LCD controller (default = ST7032_3V3)
wim	28:30fa94f7341c	1457	*/
wim	28:30fa94f7341c	1458	TextLCD_I2C_N::TextLCD_I2C_N(I2C *i2c, char deviceAddress, LCDType type, PinName bl, LCDCtrl ctrl) :
wim	28:30fa94f7341c	1459	TextLCD_Base(type, ctrl),
wim	28:30fa94f7341c	1460	_i2c(i2c){
wim	30:033048611c01	1461
wim	28:30fa94f7341c	1462	_slaveAddress = deviceAddress & 0xFE;
wim	28:30fa94f7341c	1463
wim	28:30fa94f7341c	1464	// Setup the I2C bus
wim	29:a3663151aa65	1465	// The max bitrate for ST7032i is 400kbit, lets stick to default here
wim	29:a3663151aa65	1466	_i2c->frequency(100000);
wim	29:a3663151aa65	1467	// _i2c->frequency(50000);
wim	30:033048611c01	1468
wim	28:30fa94f7341c	1469	// The hardware Backlight pin is optional. Test and make sure whether it exists or not to prevent illegal access.
wim	28:30fa94f7341c	1470	if (bl != NC) {
wim	28:30fa94f7341c	1471	_bl = new DigitalOut(bl); //Construct new pin
wim	28:30fa94f7341c	1472	_bl->write(0); //Deactivate
wim	28:30fa94f7341c	1473	}
wim	28:30fa94f7341c	1474	else {
wim	28:30fa94f7341c	1475	// No Hardware Backlight pin
wim	28:30fa94f7341c	1476	_bl = NULL; //Construct dummy pin
wim	28:30fa94f7341c	1477	}
wim	28:30fa94f7341c	1478
wim	30:033048611c01	1479	//Sanity check
wim	30:033048611c01	1480	if (_ctrl & LCD_C_I2C) {
wim	30:033048611c01	1481	_init();
wim	30:033048611c01	1482	}
wim	30:033048611c01	1483	else {
wim	30:033048611c01	1484	error("Error: LCD Controller type does not support native I2C interface\n\r");
wim	30:033048611c01	1485	}
wim	30:033048611c01	1486
wim	28:30fa94f7341c	1487	}
wim	28:30fa94f7341c	1488
wim	28:30fa94f7341c	1489	TextLCD_I2C_N::~TextLCD_I2C_N() {
wim	28:30fa94f7341c	1490	if (_bl != NULL) {delete _bl;} // BL pin
wim	28:30fa94f7341c	1491	}
wim	28:30fa94f7341c	1492
wim	28:30fa94f7341c	1493	// Not used in this mode
wim	28:30fa94f7341c	1494	void TextLCD_I2C_N::_setEnable(bool value) {
wim	28:30fa94f7341c	1495	}
wim	28:30fa94f7341c	1496
wim	28:30fa94f7341c	1497	// Set RS pin
wim	28:30fa94f7341c	1498	// Used for mbed pins, I2C bus expander or SPI shiftregister and native I2C or SPI
wim	28:30fa94f7341c	1499	void TextLCD_I2C_N::_setRS(bool value) {
wim	30:033048611c01	1500	// The controlbyte defines the meaning of the next byte. This next byte can either be data or command.
wim	30:033048611c01	1501	// Start Slaveaddress+RW b7 b6 b5 b4 b3 b2 b1 b0 b7...........b0 Stop
wim	30:033048611c01	1502	// Co RS RW 0 0 0 0 0 command or data
wim	30:033048611c01	1503	//
wim	30:033048611c01	1504	// C0=1 indicates that another controlbyte will follow after the next data or command byte
wim	30:033048611c01	1505	// RS=1 means that next byte is data, RS=0 means that next byte is command
wim	30:033048611c01	1506	// RW=0 means write to controller. RW=1 means that controller will be read from after the next command.
wim	30:033048611c01	1507	// Many native I2C controllers dont support this option and it is not used by this lib.
wim	30:033048611c01	1508	//
wim	30:033048611c01	1509
wim	28:30fa94f7341c	1510	if (value) {
wim	28:30fa94f7341c	1511	_controlbyte = 0x40; // Next byte is data, No more control bytes will follow
wim	28:30fa94f7341c	1512	}
wim	28:30fa94f7341c	1513	else {
wim	28:30fa94f7341c	1514	_controlbyte = 0x00; // Next byte is command, No more control bytes will follow
wim	28:30fa94f7341c	1515	}
wim	28:30fa94f7341c	1516	}
wim	28:30fa94f7341c	1517
wim	28:30fa94f7341c	1518	// Set BL pin
wim	28:30fa94f7341c	1519	void TextLCD_I2C_N::_setBL(bool value) {
wim	28:30fa94f7341c	1520	if (_bl) {
wim	28:30fa94f7341c	1521	_bl->write(value);
wim	28:30fa94f7341c	1522	}
wim	28:30fa94f7341c	1523	}
wim	29:a3663151aa65	1524
wim	29:a3663151aa65	1525	// Not used in this mode
wim	29:a3663151aa65	1526	void TextLCD_I2C_N::_setData(int value) {
wim	29:a3663151aa65	1527	}
wim	29:a3663151aa65	1528
wim	28:30fa94f7341c	1529	// Write a byte using I2C
wim	28:30fa94f7341c	1530	void TextLCD_I2C_N::_writeByte(int value) {
wim	30:033048611c01	1531	// The controlbyte defines the meaning of the next byte. This next byte can either be data or command.
wim	30:033048611c01	1532	// Start Slaveaddress+RW b7 b6 b5 b4 b3 b2 b1 b0 b7...........b0 Stop
wim	30:033048611c01	1533	// Co RS RW 0 0 0 0 0 command or data
wim	30:033048611c01	1534	//
wim	30:033048611c01	1535	// C0=1 indicates that another controlbyte will follow after the next data or command byte
wim	30:033048611c01	1536	// RS=1 means that next byte is data, RS=0 means that next byte is command
wim	30:033048611c01	1537	// RW=0 means write to controller. RW=1 means that controller will be read from after the next command.
wim	30:033048611c01	1538	// Many native I2C controllers dont support this option and it is not used by this lib.
wim	30:033048611c01	1539	//
wim	28:30fa94f7341c	1540	char data[] = {_controlbyte, value};
wim	28:30fa94f7341c	1541
wim	30:033048611c01	1542	_i2c->write(_slaveAddress, data, 2);
wim	28:30fa94f7341c	1543	}
wim	28:30fa94f7341c	1544
wim	28:30fa94f7341c	1545	//-------- End TextLCD_I2C_N ------------
wim	28:30fa94f7341c	1546
wim	28:30fa94f7341c	1547
wim	23:d47f226efb24	1548	//--------- Start TextLCD_SPI -----------
wim	21:9eb628d9e164	1549
wim	22:35742ec80c24	1550	/** Create a TextLCD interface using an SPI 74595 portexpander
wim	22:35742ec80c24	1551	*
wim	22:35742ec80c24	1552	* @param spi SPI Bus
wim	22:35742ec80c24	1553	* @param cs chip select pin (active low)
wim	22:35742ec80c24	1554	* @param type Sets the panel size/addressing mode (default = LCD16x2)
wim	22:35742ec80c24	1555	* @param ctrl LCD controller (default = HD44780)
wim	22:35742ec80c24	1556	*/
wim	21:9eb628d9e164	1557	TextLCD_SPI::TextLCD_SPI(SPI *spi, PinName cs, LCDType type, LCDCtrl ctrl) :
wim	21:9eb628d9e164	1558	TextLCD_Base(type, ctrl),
wim	21:9eb628d9e164	1559	_spi(spi),
wim	21:9eb628d9e164	1560	_cs(cs) {
wim	21:9eb628d9e164	1561
wim	21:9eb628d9e164	1562	// Setup the spi for 8 bit data, low steady state clock,
wim	21:9eb628d9e164	1563	// rising edge capture, with a 500KHz or 1MHz clock rate
wim	21:9eb628d9e164	1564	_spi->format(8,0);
wim	21:9eb628d9e164	1565	_spi->frequency(500000);
wim	21:9eb628d9e164	1566	//_spi.frequency(1000000);
wim	21:9eb628d9e164	1567
wim	21:9eb628d9e164	1568	// Init the portexpander bus
wim	21:9eb628d9e164	1569	_lcd_bus = D_LCD_BUS_DEF;
wim	21:9eb628d9e164	1570
wim	21:9eb628d9e164	1571	// write the new data to the portexpander
wim	21:9eb628d9e164	1572	_setCS(false);
wim	21:9eb628d9e164	1573	_spi->write(_lcd_bus);
wim	21:9eb628d9e164	1574	_setCS(true);
wim	30:033048611c01	1575
wim	30:033048611c01	1576	_init();
wim	21:9eb628d9e164	1577	}
wim	21:9eb628d9e164	1578
wim	21:9eb628d9e164	1579	// Set E pin (or E2 pin)
wim	21:9eb628d9e164	1580	// Used for mbed pins, I2C bus expander or SPI shiftregister
wim	21:9eb628d9e164	1581	void TextLCD_SPI::_setEnable(bool value) {
wim	21:9eb628d9e164	1582
wim	22:35742ec80c24	1583	if(_ctrl_idx==_LCDCtrl_0) {
wim	26:bd897a001012	1584	if (value) {
wim	22:35742ec80c24	1585	_lcd_bus \|= D_LCD_E; // Set E bit
wim	26:bd897a001012	1586	}
wim	26:bd897a001012	1587	else {
wim	22:35742ec80c24	1588	_lcd_bus &= ~D_LCD_E; // Reset E bit
wim	26:bd897a001012	1589	}
wim	22:35742ec80c24	1590	}
wim	22:35742ec80c24	1591	else {
wim	26:bd897a001012	1592	if (value) {
wim	22:35742ec80c24	1593	_lcd_bus \|= D_LCD_E2; // Set E2 bit
wim	26:bd897a001012	1594	}
wim	26:bd897a001012	1595	else {
wim	22:35742ec80c24	1596	_lcd_bus &= ~D_LCD_E2; // Reset E2 bit
wim	26:bd897a001012	1597	}
wim	22:35742ec80c24	1598	}
wim	21:9eb628d9e164	1599
wim	22:35742ec80c24	1600	// write the new data to the SPI portexpander
wim	22:35742ec80c24	1601	_setCS(false);
wim	22:35742ec80c24	1602	_spi->write(_lcd_bus);
wim	30:033048611c01	1603	_setCS(true);
wim	21:9eb628d9e164	1604	}
wim	21:9eb628d9e164	1605
wim	21:9eb628d9e164	1606	// Set RS pin
wim	21:9eb628d9e164	1607	// Used for mbed pins, I2C bus expander or SPI shiftregister
wim	21:9eb628d9e164	1608	void TextLCD_SPI::_setRS(bool value) {
wim	21:9eb628d9e164	1609
wim	22:35742ec80c24	1610	if (value) {
wim	21:9eb628d9e164	1611	_lcd_bus \|= D_LCD_RS; // Set RS bit
wim	22:35742ec80c24	1612	}
wim	22:35742ec80c24	1613	else {
wim	21:9eb628d9e164	1614	_lcd_bus &= ~D_LCD_RS; // Reset RS bit
wim	22:35742ec80c24	1615	}
wim	21:9eb628d9e164	1616
wim	21:9eb628d9e164	1617	// write the new data to the SPI portexpander
wim	21:9eb628d9e164	1618	_setCS(false);
wim	21:9eb628d9e164	1619	_spi->write(_lcd_bus);
wim	21:9eb628d9e164	1620	_setCS(true);
wim	21:9eb628d9e164	1621	}
wim	21:9eb628d9e164	1622
wim	21:9eb628d9e164	1623	// Set BL pin
wim	21:9eb628d9e164	1624	// Used for mbed pins, I2C bus expander or SPI shiftregister
wim	21:9eb628d9e164	1625	void TextLCD_SPI::_setBL(bool value) {
wim	21:9eb628d9e164	1626
wim	22:35742ec80c24	1627	if (value) {
wim	21:9eb628d9e164	1628	_lcd_bus \|= D_LCD_BL; // Set BL bit
wim	22:35742ec80c24	1629	}
wim	22:35742ec80c24	1630	else {
wim	21:9eb628d9e164	1631	_lcd_bus &= ~D_LCD_BL; // Reset BL bit
wim	22:35742ec80c24	1632	}
wim	21:9eb628d9e164	1633
wim	21:9eb628d9e164	1634	// write the new data to the SPI portexpander
wim	21:9eb628d9e164	1635	_setCS(false);
wim	21:9eb628d9e164	1636	_spi->write(_lcd_bus);
wim	30:033048611c01	1637	_setCS(true);
wim	21:9eb628d9e164	1638	}
wim	21:9eb628d9e164	1639
wim	21:9eb628d9e164	1640	// Place the 4bit data on the databus
wim	21:9eb628d9e164	1641	// Used for mbed pins, I2C bus expander or SPI shiftregister
wim	21:9eb628d9e164	1642	void TextLCD_SPI::_setData(int value) {
wim	21:9eb628d9e164	1643	int data;
wim	21:9eb628d9e164	1644
wim	22:35742ec80c24	1645	// Set bit by bit to support any mapping of expander portpins to LCD pins
wim	22:35742ec80c24	1646
wim	22:35742ec80c24	1647	data = value & 0x0F;
wim	26:bd897a001012	1648	if (data & 0x01) {
wim	22:35742ec80c24	1649	_lcd_bus \|= D_LCD_D4; // Set Databit
wim	26:bd897a001012	1650	}
wim	26:bd897a001012	1651	else {
wim	22:35742ec80c24	1652	_lcd_bus &= ~D_LCD_D4; // Reset Databit
wim	26:bd897a001012	1653	}
wim	26:bd897a001012	1654
wim	26:bd897a001012	1655	if (data & 0x02) {
wim	22:35742ec80c24	1656	_lcd_bus \|= D_LCD_D5; // Set Databit
wim	26:bd897a001012	1657	}
wim	26:bd897a001012	1658	else {
wim	22:35742ec80c24	1659	_lcd_bus &= ~D_LCD_D5; // Reset Databit
wim	26:bd897a001012	1660	}
wim	26:bd897a001012	1661
wim	26:bd897a001012	1662	if (data & 0x04) {
wim	22:35742ec80c24	1663	_lcd_bus \|= D_LCD_D6; // Set Databit
wim	26:bd897a001012	1664	}
wim	26:bd897a001012	1665	else {
wim	22:35742ec80c24	1666	_lcd_bus &= ~D_LCD_D6; // Reset Databit
wim	26:bd897a001012	1667	}
wim	26:bd897a001012	1668
wim	26:bd897a001012	1669	if (data & 0x08) {
wim	22:35742ec80c24	1670	_lcd_bus \|= D_LCD_D7; // Set Databit
wim	26:bd897a001012	1671	}
wim	26:bd897a001012	1672	else {
wim	26:bd897a001012	1673	_lcd_bus &= ~D_LCD_D7; // Reset Databit
wim	26:bd897a001012	1674	}
wim	21:9eb628d9e164	1675
wim	22:35742ec80c24	1676	// write the new data to the SPI portexpander
wim	22:35742ec80c24	1677	_setCS(false);
wim	22:35742ec80c24	1678	_spi->write(_lcd_bus);
wim	30:033048611c01	1679	_setCS(true);
wim	21:9eb628d9e164	1680	}
wim	21:9eb628d9e164	1681
wim	21:9eb628d9e164	1682	// Set CS line.
wim	21:9eb628d9e164	1683	// Only used for SPI bus
wim	21:9eb628d9e164	1684	void TextLCD_SPI::_setCS(bool value) {
wim	21:9eb628d9e164	1685
wim	21:9eb628d9e164	1686	if (value) {
wim	21:9eb628d9e164	1687	_cs = 1; // Set CS pin
wim	21:9eb628d9e164	1688	}
wim	22:35742ec80c24	1689	else {
wim	21:9eb628d9e164	1690	_cs = 0; // Reset CS pin
wim	22:35742ec80c24	1691	}
wim	21:9eb628d9e164	1692	}
wim	21:9eb628d9e164	1693
wim	23:d47f226efb24	1694	//---------- End TextLCD_SPI ------------
wim	22:35742ec80c24	1695
wim	22:35742ec80c24	1696
wim	25:6162b31128c9	1697	//--------- Start TextLCD_SPI_N ---------
Sissors	24:fb3399713710	1698
wim	30:033048611c01	1699	/** Create a TextLCD interface using a controller with a native SPI4 interface
Sissors	24:fb3399713710	1700	*
Sissors	24:fb3399713710	1701	* @param spi SPI Bus
Sissors	24:fb3399713710	1702	* @param cs chip select pin (active low)
wim	25:6162b31128c9	1703	* @param rs Instruction/data control line
Sissors	24:fb3399713710	1704	* @param type Sets the panel size/addressing mode (default = LCD16x2)
wim	25:6162b31128c9	1705	* @param bl Backlight control line (optional, default = NC)
wim	26:bd897a001012	1706	* @param ctrl LCD controller (default = ST7032_3V3)
wim	25:6162b31128c9	1707	*/
wim	25:6162b31128c9	1708	TextLCD_SPI_N::TextLCD_SPI_N(SPI *spi, PinName cs, PinName rs, LCDType type, PinName bl, LCDCtrl ctrl) :
wim	25:6162b31128c9	1709	TextLCD_Base(type, ctrl),
wim	25:6162b31128c9	1710	_spi(spi),
wim	25:6162b31128c9	1711	_cs(cs),
wim	25:6162b31128c9	1712	_rs(rs) {
Sissors	24:fb3399713710	1713
Sissors	24:fb3399713710	1714	// Setup the spi for 8 bit data, low steady state clock,
Sissors	24:fb3399713710	1715	// rising edge capture, with a 500KHz or 1MHz clock rate
Sissors	24:fb3399713710	1716	_spi->format(8,0);
Sissors	24:fb3399713710	1717	_spi->frequency(1000000);
Sissors	24:fb3399713710	1718
Sissors	24:fb3399713710	1719	// The hardware Backlight pin is optional. Test and make sure whether it exists or not to prevent illegal access.
Sissors	24:fb3399713710	1720	if (bl != NC) {
Sissors	24:fb3399713710	1721	_bl = new DigitalOut(bl); //Construct new pin
Sissors	24:fb3399713710	1722	_bl->write(0); //Deactivate
Sissors	24:fb3399713710	1723	}
Sissors	24:fb3399713710	1724	else {
Sissors	24:fb3399713710	1725	// No Hardware Backlight pin
Sissors	24:fb3399713710	1726	_bl = NULL; //Construct dummy pin
Sissors	24:fb3399713710	1727	}
wim	30:033048611c01	1728
wim	30:033048611c01	1729	//Sanity check
wim	30:033048611c01	1730	if (_ctrl & LCD_C_SPI4) {
wim	30:033048611c01	1731	_init();
wim	30:033048611c01	1732	}
wim	30:033048611c01	1733	else {
wim	30:033048611c01	1734	error("Error: LCD Controller type does not support native SPI4 interface\n\r");
wim	30:033048611c01	1735	}
Sissors	24:fb3399713710	1736	}
Sissors	24:fb3399713710	1737
wim	25:6162b31128c9	1738	TextLCD_SPI_N::~TextLCD_SPI_N() {
Sissors	24:fb3399713710	1739	if (_bl != NULL) {delete _bl;} // BL pin
Sissors	24:fb3399713710	1740	}
Sissors	24:fb3399713710	1741
Sissors	24:fb3399713710	1742	// Not used in this mode
wim	25:6162b31128c9	1743	void TextLCD_SPI_N::_setEnable(bool value) {
Sissors	24:fb3399713710	1744	}
Sissors	24:fb3399713710	1745
Sissors	24:fb3399713710	1746	// Set RS pin
Sissors	24:fb3399713710	1747	// Used for mbed pins, I2C bus expander or SPI shiftregister
wim	25:6162b31128c9	1748	void TextLCD_SPI_N::_setRS(bool value) {
Sissors	24:fb3399713710	1749	_rs = value;
Sissors	24:fb3399713710	1750	}
Sissors	24:fb3399713710	1751
Sissors	24:fb3399713710	1752	// Set BL pin
wim	25:6162b31128c9	1753	void TextLCD_SPI_N::_setBL(bool value) {
wim	26:bd897a001012	1754	if (_bl) {
Sissors	24:fb3399713710	1755	_bl->write(value);
wim	26:bd897a001012	1756	}
Sissors	24:fb3399713710	1757	}
Sissors	24:fb3399713710	1758
wim	29:a3663151aa65	1759	// Not used in this mode
wim	29:a3663151aa65	1760	void TextLCD_SPI_N::_setData(int value) {
wim	29:a3663151aa65	1761	}
wim	29:a3663151aa65	1762
Sissors	24:fb3399713710	1763	// Write a byte using SPI
wim	25:6162b31128c9	1764	void TextLCD_SPI_N::_writeByte(int value) {
Sissors	24:fb3399713710	1765	_cs = 0;
Sissors	24:fb3399713710	1766	wait_us(1);
Sissors	24:fb3399713710	1767	_spi->write(value);
Sissors	24:fb3399713710	1768	wait_us(1);
Sissors	24:fb3399713710	1769	_cs = 1;
Sissors	24:fb3399713710	1770	}
wim	30:033048611c01	1771
wim	25:6162b31128c9	1772	//-------- End TextLCD_SPI_N ------------
wim	21:9eb628d9e164	1773
wim	21:9eb628d9e164	1774
wim	21:9eb628d9e164	1775
wim	30:033048611c01	1776	#if(0)
wim	30:033048611c01	1777	//Code checked out on logic analyser. Not yet tested on hardware..
wim	30:033048611c01	1778
wim	30:033048611c01	1779	//-------- Start TextLCD_SPI_N_3_9 --------
wim	30:033048611c01	1780
wim	30:033048611c01	1781	/** Create a TextLCD interface using a controller with a native SPI3 9 bits interface
wim	30:033048611c01	1782	*
wim	30:033048611c01	1783	* @param spi SPI Bus
wim	30:033048611c01	1784	* @param cs chip select pin (active low)
wim	30:033048611c01	1785	* @param type Sets the panel size/addressing mode (default = LCD16x2)
wim	30:033048611c01	1786	* @param bl Backlight control line (optional, default = NC)
wim	30:033048611c01	1787	* @param ctrl LCD controller (default = AIP31068)
wim	30:033048611c01	1788	*/
wim	30:033048611c01	1789	TextLCD_SPI_N_3_9::TextLCD_SPI_N_3_9(SPI *spi, PinName cs, LCDType type, PinName bl, LCDCtrl ctrl) :
wim	30:033048611c01	1790	TextLCD_Base(type, ctrl),
wim	30:033048611c01	1791	_spi(spi),
wim	30:033048611c01	1792	_cs(cs) {
wim	30:033048611c01	1793
wim	30:033048611c01	1794	// Setup the spi for 9 bit data, low steady state clock,
wim	30:033048611c01	1795	// rising edge capture, with a 500KHz or 1MHz clock rate
wim	30:033048611c01	1796	_spi->format(9,0);
wim	30:033048611c01	1797	_spi->frequency(1000000);
wim	30:033048611c01	1798
wim	30:033048611c01	1799	// The hardware Backlight pin is optional. Test and make sure whether it exists or not to prevent illegal access.
wim	30:033048611c01	1800	if (bl != NC) {
wim	30:033048611c01	1801	_bl = new DigitalOut(bl); //Construct new pin
wim	30:033048611c01	1802	_bl->write(0); //Deactivate
wim	30:033048611c01	1803	}
wim	30:033048611c01	1804	else {
wim	30:033048611c01	1805	// No Hardware Backlight pin
wim	30:033048611c01	1806	_bl = NULL; //Construct dummy pin
wim	30:033048611c01	1807	}
wim	30:033048611c01	1808
wim	30:033048611c01	1809	//Sanity check
wim	30:033048611c01	1810	if (_ctrl & LCD_C_SPI3_9) {
wim	30:033048611c01	1811	_init();
wim	30:033048611c01	1812	}
wim	30:033048611c01	1813	else {
wim	30:033048611c01	1814	error("Error: LCD Controller type does not support native SPI3 9 bits interface\n\r");
wim	30:033048611c01	1815	}
wim	30:033048611c01	1816	}
wim	30:033048611c01	1817
wim	30:033048611c01	1818	TextLCD_SPI_N_3_9::~TextLCD_SPI_N_3_9() {
wim	30:033048611c01	1819	if (_bl != NULL) {delete _bl;} // BL pin
wim	30:033048611c01	1820	}
wim	30:033048611c01	1821
wim	30:033048611c01	1822	// Not used in this mode
wim	30:033048611c01	1823	void TextLCD_SPI_N_3_9::_setEnable(bool value) {
wim	30:033048611c01	1824	}
wim	30:033048611c01	1825
wim	30:033048611c01	1826	// Set RS pin
wim	30:033048611c01	1827	// Used for mbed pins, I2C bus expander or SPI shiftregister
wim	30:033048611c01	1828	void TextLCD_SPI_N_3_9::_setRS(bool value) {
wim	30:033048611c01	1829	// The controlbits define the meaning of the next byte. This next byte can either be data or command.
wim	30:033048611c01	1830	// b8 b7...........b0
wim	30:033048611c01	1831	// RS command or data
wim	30:033048611c01	1832	//
wim	30:033048611c01	1833	// RS=1 means that next byte is data, RS=0 means that next byte is command
wim	30:033048611c01	1834	//
wim	30:033048611c01	1835
wim	30:033048611c01	1836	if (value) {
wim	30:033048611c01	1837	_controlbyte = 0x01; // Next byte is data
wim	30:033048611c01	1838	}
wim	30:033048611c01	1839	else {
wim	30:033048611c01	1840	_controlbyte = 0x00; // Next byte is command
wim	30:033048611c01	1841	}
wim	30:033048611c01	1842
wim	30:033048611c01	1843	}
wim	30:033048611c01	1844
wim	30:033048611c01	1845	// Set BL pin
wim	30:033048611c01	1846	void TextLCD_SPI_N_3_9::_setBL(bool value) {
wim	30:033048611c01	1847	if (_bl) {
wim	30:033048611c01	1848	_bl->write(value);
wim	30:033048611c01	1849	}
wim	30:033048611c01	1850	}
wim	30:033048611c01	1851
wim	30:033048611c01	1852	// Not used in this mode
wim	30:033048611c01	1853	void TextLCD_SPI_N_3_9::_setData(int value) {
wim	30:033048611c01	1854	}
wim	30:033048611c01	1855
wim	30:033048611c01	1856	// Write a byte using SPI3 9 bits mode
wim	30:033048611c01	1857	void TextLCD_SPI_N_3_9::_writeByte(int value) {
wim	30:033048611c01	1858	_cs = 0;
wim	30:033048611c01	1859	wait_us(1);
wim	30:033048611c01	1860	_spi->write( (_controlbyte << 8) \| (value & 0xFF));
wim	30:033048611c01	1861	wait_us(1);
wim	30:033048611c01	1862	_cs = 1;
wim	30:033048611c01	1863	}
wim	30:033048611c01	1864
wim	30:033048611c01	1865	//------- End TextLCD_SPI_N_3_9 -----------
wim	30:033048611c01	1866	#endif
wim	21:9eb628d9e164	1867
wim	21:9eb628d9e164	1868
wim	30:033048611c01	1869	#if(0)
wim	30:033048611c01	1870	//Code checked out on logic analyser. Not yet tested on hardware..
wim	30:033048611c01	1871
wim	30:033048611c01	1872	//------- Start TextLCD_SPI_N_3_10 --------
wim	30:033048611c01	1873
wim	30:033048611c01	1874	/** Create a TextLCD interface using a controller with a native SPI3 10 bits interface
wim	30:033048611c01	1875	*
wim	30:033048611c01	1876	* @param spi SPI Bus
wim	30:033048611c01	1877	* @param cs chip select pin (active low)
wim	30:033048611c01	1878	* @param type Sets the panel size/addressing mode (default = LCD16x2)
wim	30:033048611c01	1879	* @param bl Backlight control line (optional, default = NC)
wim	30:033048611c01	1880	* @param ctrl LCD controller (default = AIP31068)
wim	30:033048611c01	1881	*/
wim	30:033048611c01	1882	TextLCD_SPI_N_3_10::TextLCD_SPI_N_3_10(SPI *spi, PinName cs, LCDType type, PinName bl, LCDCtrl ctrl) :
wim	30:033048611c01	1883	TextLCD_Base(type, ctrl),
wim	30:033048611c01	1884	_spi(spi),
wim	30:033048611c01	1885	_cs(cs) {
wim	30:033048611c01	1886
wim	30:033048611c01	1887	// Setup the spi for 10 bit data, low steady state clock,
wim	30:033048611c01	1888	// rising edge capture, with a 500KHz or 1MHz clock rate
wim	30:033048611c01	1889	_spi->format(10,0);
wim	30:033048611c01	1890	_spi->frequency(1000000);
wim	30:033048611c01	1891
wim	30:033048611c01	1892	// The hardware Backlight pin is optional. Test and make sure whether it exists or not to prevent illegal access.
wim	30:033048611c01	1893	if (bl != NC) {
wim	30:033048611c01	1894	_bl = new DigitalOut(bl); //Construct new pin
wim	30:033048611c01	1895	_bl->write(0); //Deactivate
wim	30:033048611c01	1896	}
wim	30:033048611c01	1897	else {
wim	30:033048611c01	1898	// No Hardware Backlight pin
wim	30:033048611c01	1899	_bl = NULL; //Construct dummy pin
wim	30:033048611c01	1900	}
wim	30:033048611c01	1901
wim	30:033048611c01	1902	//Sanity check
wim	30:033048611c01	1903	if (_ctrl & LCD_C_SPI3_10) {
wim	30:033048611c01	1904	_init();
wim	30:033048611c01	1905	}
wim	30:033048611c01	1906	else {
wim	30:033048611c01	1907	error("Error: LCD Controller type does not support native SPI3 10 bits interface\n\r");
wim	30:033048611c01	1908	}
wim	30:033048611c01	1909	}
wim	30:033048611c01	1910
wim	30:033048611c01	1911	TextLCD_SPI_N_3_10::~TextLCD_SPI_N_3_10() {
wim	30:033048611c01	1912	if (_bl != NULL) {delete _bl;} // BL pin
wim	30:033048611c01	1913	}
wim	30:033048611c01	1914
wim	30:033048611c01	1915	// Not used in this mode
wim	30:033048611c01	1916	void TextLCD_SPI_N_3_10::_setEnable(bool value) {
wim	30:033048611c01	1917	}
wim	30:033048611c01	1918
wim	30:033048611c01	1919	// Set RS pin
wim	30:033048611c01	1920	// Used for mbed pins, I2C bus expander or SPI shiftregister
wim	30:033048611c01	1921	void TextLCD_SPI_N_3_10::_setRS(bool value) {
wim	30:033048611c01	1922	// The controlbits define the meaning of the next byte. This next byte can either be data or command.
wim	30:033048611c01	1923	// b9 b8 b7...........b0
wim	30:033048611c01	1924	// RS RW command or data
wim	30:033048611c01	1925	//
wim	30:033048611c01	1926	// RS=1 means that next byte is data, RS=0 means that next byte is command
wim	30:033048611c01	1927	// RW=0 means that next byte is writen, RW=1 means that next byte is read (not used in this lib)
wim	30:033048611c01	1928	//
wim	30:033048611c01	1929
wim	30:033048611c01	1930	if (value) {
wim	30:033048611c01	1931	_controlbyte = 0x02; // Next byte is data
wim	30:033048611c01	1932	}
wim	30:033048611c01	1933	else {
wim	30:033048611c01	1934	_controlbyte = 0x00; // Next byte is command
wim	30:033048611c01	1935	}
wim	30:033048611c01	1936
wim	30:033048611c01	1937	}
wim	30:033048611c01	1938
wim	30:033048611c01	1939	// Set BL pin
wim	30:033048611c01	1940	void TextLCD_SPI_N_3_10::_setBL(bool value) {
wim	30:033048611c01	1941	if (_bl) {
wim	30:033048611c01	1942	_bl->write(value);
wim	30:033048611c01	1943	}
wim	30:033048611c01	1944	}
wim	30:033048611c01	1945
wim	30:033048611c01	1946	// Not used in this mode
wim	30:033048611c01	1947	void TextLCD_SPI_N_3_10::_setData(int value) {
wim	30:033048611c01	1948	}
wim	30:033048611c01	1949
wim	30:033048611c01	1950	// Write a byte using SPI3 10 bits mode
wim	30:033048611c01	1951	void TextLCD_SPI_N_3_10::_writeByte(int value) {
wim	30:033048611c01	1952	_cs = 0;
wim	30:033048611c01	1953	wait_us(1);
wim	30:033048611c01	1954	_spi->write( (_controlbyte << 8) \| (value & 0xFF));
wim	30:033048611c01	1955	wait_us(1);
wim	30:033048611c01	1956	_cs = 1;
wim	30:033048611c01	1957	}
wim	30:033048611c01	1958
wim	30:033048611c01	1959	//------- End TextLCD_SPI_N_3_10 ----------
wim	30:033048611c01	1960	#endif

Repository toolbox

Export to desktop IDE

Repository details

Type:	Library
Created:	23 Oct 2019
Imports:	3
Forks:	0
Commits:	43
Dependents:	1
Dependencies:	0
Followers:	1

TextLCD.cpp@31:ef31cd8a00d1, 2014-06-29 (annotated)

Who changed what in which revision?

Repository toolbox

Repository details

Important Information for this Arm website

Access Warning