proyecto LCD

Revision:
9:2db641efba7e
Parent:
8:308d188a2d3a
diff -r 308d188a2d3a -r 2db641efba7e TextLCD.h
--- a/TextLCD.h	Thu Jan 02 21:07:01 2014 +0000
+++ b/TextLCD.h	Wed Nov 13 21:28:23 2019 +0000
@@ -1,5 +1,23 @@
-/* mbed TextLCD Library, for a 4-bit LCD based on HD44780
+/* mbed TextLCD Library, for LCDs based on HD44780 controllers
  * Copyright (c) 2007-2010, sford, http://mbed.org
+ *               2013, v01: WH, Added LCD types, fixed LCD address issues, added Cursor and UDCs 
+ *               2013, v02: WH, Added I2C and SPI bus interfaces
+ *               2013, v03: WH, Added support for LCD40x4 which uses 2 controllers   
+ *               2013, v04: WH, Added support for Display On/Off, improved 4bit bootprocess  
+ *               2013, v05: WH, Added support for 8x2B, added some UDCs  
+ *               2013, v06: WH, Added support for devices that use internal DC/DC converters 
+ *               2013, v07: WH, Added support for backlight and include portdefinitions for LCD2004 Module from DFROBOT
+ *               2014, v08: WH, Refactored in Base and Derived Classes to deal with mbed lib change regarding 'NC' defined DigitalOut pins
+ *               2014, v09: WH/EO, Added Class for Native SPI controllers such as ST7032 
+ *               2014, v10: WH, Added Class for Native I2C controllers such as ST7032i, Added support for MCP23008 I2C portexpander, Added support for Adafruit module  
+ *               2014, v11: WH, Added support for native I2C controllers such as PCF21XX, Improved the _initCtrl() method to deal with differences between all supported controllers  
+ *               2014, v12: WH, Added support for native I2C controller PCF2119 and native I2C/SPI controllers SSD1803, ST7036, added setContrast method (by JH1PJL) for supported devices (eg ST7032i) 
+ *               2014, v13: WH, Added support for controllers US2066/SSD1311 (OLED), added setUDCBlink() method for supported devices (eg SSD1803), fixed issue in setPower() 
+ *               2014, v14: WH, Added support for PT6314 (VFD), added setOrient() method for supported devices (eg SSD1803, US2066), added Double Height lines for supported devices, 
+ *                              added 16 UDCs for supported devices (eg PCF2103), moved UDC defines to TextLCD_UDC file, added TextLCD_Config.h for feature and footprint settings.
+ *               2014, v15: WH, Added AC780 support, added I2C expander modules, fixed setBacklight() for inverted logic modules. Fixed bug in LCD_SPI_N define 
+ *               2014, v16: WH, Added ST7070 and KS0073 support, added setIcon(), clrIcon() and setInvert() method for supported devices  
+ *               2015, v17: WH, Clean up low-level _writeCommand() and _writeData(), Added support for alternative fonttables (eg PCF21XX), Added ST7066_ACM controller for ACM1602 module
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -24,42 +42,263 @@
 #define MBED_TEXTLCD_H
 
 #include "mbed.h"
+#include "TextLCD_Config.h"
+#include "TextLCD_UDC.h"
 
-/**  A TextLCD interface for driving 4-bit HD44780-based LCDs
+/** A TextLCD interface for driving 4-bit HD44780-based LCDs
  *
- * Currently supports 16x2, 20x2 and 20x4 panels
+ * Currently supports 8x1, 8x2, 12x3, 12x4, 16x1, 16x2, 16x3, 16x4, 20x2, 20x4, 24x1, 24x2, 24x4, 40x2 and 40x4 panels.
+ * Interface options include direct mbed pins, I2C portexpander (PCF8474/PCF8574A or MCP23008) or SPI bus shiftregister (74595). 
+ * Supports some controllers with native I2C or SPI interface. Supports some controllers that provide internal DC/DC converters for VLCD or VLED. 
+ * Supports some controllers that feature programmable contrast control, powerdown, blinking UDCs and/or top/down orientation modes.
  *
  * @code
  * #include "mbed.h"
  * #include "TextLCD.h"
  * 
- * TextLCD lcd(p10, p12, p15, p16, p29, p30); // rs, e, d4-d7
- * 
+ * // I2C Communication
+ * I2C i2c_lcd(p28,p27); // SDA, SCL
+ *
+ * // SPI Communication
+ * SPI spi_lcd(p5, NC, p7); // MOSI, MISO, SCLK
+ *
+ * //TextLCD lcd(p15, p16, p17, p18, p19, p20);                          // RS, E, D4-D7, LCDType=LCD16x2, BL=NC, E2=NC, LCDTCtrl=HD44780
+ * //TextLCD_SPI lcd(&spi_lcd, p8, TextLCD::LCD40x4);                    // SPI bus, 74595 expander, CS pin, LCD Type  
+ * TextLCD_I2C lcd(&i2c_lcd, 0x42, TextLCD::LCD20x4);                    // I2C bus, PCF8574 Slaveaddress, LCD Type
+ * //TextLCD_I2C lcd(&i2c_lcd, 0x42, TextLCD::LCD16x2, TextLCD::WS0010); // I2C bus, PCF8574 Slaveaddress, LCD Type, Device Type (OLED)
+ * //TextLCD_SPI_N lcd(&spi_lcd, p8, p9);                                // SPI bus, CS pin, RS pin, LCDType=LCD16x2, BL=NC, LCDTCtrl=ST7032_3V3   
+ * //TextLCD_I2C_N lcd(&i2c_lcd, ST7032_SA, TextLCD::LCD16x2, NC, TextLCD::ST7032_3V3);   // I2C bus, Slaveaddress, LCD Type, BL=NC, LCDTCtrl=ST7032_3V3  
+ * //TextLCD_SPI_N_3_24 lcd(&spi_lcd, p8, TextLCD::LCD20x4D, NC, TextLCD::SSD1803_3V3);   // SPI bus, CS pin, LCDType=LCD20x4D, BL=NC, LCDTCtrl=SSD1803
+ * //TextLCD_SPI_N_3_24 lcd(&spi_lcd, p8, TextLCD::LCD20x2, NC, TextLCD::US2066_3V3);     // SPI bus, CS pin, LCDType=LCD20x2, BL=NC, LCDTCtrl=US2066 (OLED)
+ *
  * int main() {
- *     lcd.printf("Hello World!\n");
+ *   lcd.printf("Hello World!\n");
  * }
  * @endcode
  */
-class TextLCD : public Stream {
+
+//The TextLCD_Config.h file selects hardware interface options to reduce memory footprint
+//and provides Pin Defines for I2C PCF8574/PCF8574A or MCP23008 and SPI 74595 bus expander interfaces.
+//The LCD and serial portexpanders should be wired accordingly. 
+
+/* LCD Type information on Rows, Columns and Variant. This information is encoded in
+ * an int and used for the LCDType enumerators in order to simplify code maintenance */
+// Columns encoded in b7..b0
+#define LCD_T_COL_MSK  0x000000FF
+#define LCD_T_C6       0x00000006
+#define LCD_T_C8       0x00000008
+#define LCD_T_C10      0x0000000A
+#define LCD_T_C12      0x0000000C
+#define LCD_T_C16      0x00000010
+#define LCD_T_C20      0x00000014
+#define LCD_T_C24      0x00000018
+#define LCD_T_C32      0x00000020
+#define LCD_T_C40      0x00000028
+
+// Rows encoded in b15..b8  
+#define LCD_T_ROW_MSK  0x0000FF00
+#define LCD_T_R1       0x00000100
+#define LCD_T_R2       0x00000200
+#define LCD_T_R3       0x00000300
+#define LCD_T_R4       0x00000400
+  
+// Addressing mode encoded in b19..b16
+#define LCD_T_ADR_MSK  0x000F0000
+#define LCD_T_A        0x00000000  /*Mode A   Default 1, 2 or 4 line display                       */
+#define LCD_T_B        0x00010000  /*Mode B,  Alternate 8x2 (actually 16x1 display)                */
+#define LCD_T_C        0x00020000  /*Mode C,  Alternate 16x1 (actually 8x2 display)                */
+#define LCD_T_D        0x00030000  /*Mode D,  Alternate 3 or 4 line display (12x4, 20x4, 24x4)     */
+#define LCD_T_D1       0x00040000  /*Mode D1, Alternate 3 out of 4 line display (12x3, 20x3, 24x3) */
+#define LCD_T_E        0x00050000  /*Mode E,  40x4 display (actually two 40x2)                     */
+#define LCD_T_F        0x00060000  /*Mode F,  16x3 display (actually 24x2)                         */
+#define LCD_T_G        0x00070000  /*Mode G,  16x3 display                                         */
+
+/* LCD Ctrl information on interface support and features. This information is encoded in
+ * an int and used for the LCDCtrl enumerators in order to simplify code maintenance */
+// Interface encoded in b31..b24
+#define LCD_C_BUS_MSK  0xFF000000
+#define LCD_C_PAR      0x01000000  /*Parallel 4 or 8 bit data, E pin, RS pin, RW=GND            */
+#define LCD_C_SPI3_8   0x02000000  /*SPI 3 line (MOSI, SCL, CS pins),  8 bits (Count Command initiates Data transfer) */
+#define LCD_C_SPI3_9   0x04000000  /*SPI 3 line (MOSI, SCL, CS pins),  9 bits (RS + 8 Data)     */
+#define LCD_C_SPI3_10  0x08000000  /*SPI 3 line (MOSI, SCL, CS pins), 10 bits (RS, RW + 8 Data) */
+#define LCD_C_SPI3_16  0x10000000  /*SPI 3 line (MOSI, SCL, CS pins), 16 bits (RS, RW + 8 Data) */
+#define LCD_C_SPI3_24  0x20000000  /*SPI 3 line (MOSI, SCL, CS pins), 24 bits (RS, RW + 8 Data) */
+#define LCD_C_SPI4     0x40000000  /*SPI 4 line (MOSI, SCL, CS, RS pin), RS pin + 8 Data        */
+#define LCD_C_I2C      0x80000000  /*I2C (SDA, SCL pin), 8 control bits (Co, RS, RW) + 8 Data   */
+// Features encoded in b23..b16
+#define LCD_C_FTR_MSK  0x00FF0000 
+#define LCD_C_BST      0x00010000  /*Booster             */
+#define LCD_C_CTR      0x00020000  /*Contrast Control    */
+#define LCD_C_ICN      0x00040000  /*Icons               */
+#define LCD_C_PDN      0x00080000  /*Power Down          */
+// Fonttable encoded in b15..b12
+#define LCD_C_FNT_MSK  0x0000F000 
+#define LCD_C_FT0      0x00000000  /*Default             */
+#define LCD_C_FT1      0x00001000  /*Font1               */
+#define LCD_C_FT2      0x00002000  /*Font2               */
+
+/** A TextLCD interface for driving 4-bit HD44780-based LCDs
+ *
+ * @brief Currently supports 8x1, 8x2, 12x2, 12x3, 12x4, 16x1, 16x2, 16x3, 16x4, 20x2, 20x4, 24x2, 24x4, 40x2 and 40x4 panels
+ *        Interface options include direct mbed pins, I2C portexpander (PCF8474/PCF8574A or MCP23008) or 
+ *        SPI bus shiftregister (74595) or native I2C or SPI interfaces for some supported devices. 
+ */
+class TextLCD_Base : public Stream {
+//class TextLCD_Base {    
+
+//Unfortunately the following #define selection breaks Doxygen !!!
+//Add it manually when you want to disable the Stream inheritance
+//#if (LCD_PRINTF == 1)
+//class TextLCD_Base : public Stream {
+//#else    
+//class TextLCD_Base {    
+//#endif
+
 public:
 
     /** LCD panel format */
+    // The commented out types exist but have not yet been tested with the library
     enum LCDType {
-        LCD16x2     /**< 16x2 LCD panel (default) */
-        , LCD16x2B  /**< 16x2 LCD panel alternate addressing */
-        , LCD20x2   /**< 20x2 LCD panel */
-        , LCD20x4   /**< 20x4 LCD panel */
+//        LCD6x1     = (LCD_T_A | LCD_T_C6 | LCD_T_R1),     /**<  6x1 LCD panel */          
+//        LCD6x2     = (LCD_T_A | LCD_T_C6 | LCD_T_R2),     /**<  6x2 LCD panel */          
+        LCD8x1     = (LCD_T_A | LCD_T_C8 | LCD_T_R1),     /**<  8x1 LCD panel */    
+        LCD8x2     = (LCD_T_A | LCD_T_C8 | LCD_T_R2),     /**<  8x2 LCD panel */          
+        LCD8x2B    = (LCD_T_D | LCD_T_C8 | LCD_T_R2),     /**<  8x2 LCD panel (actually 16x1) */                  
+        LCD12x1    = (LCD_T_A | LCD_T_C12 | LCD_T_R1),    /**< 12x1 LCD panel */                          
+        LCD12x2    = (LCD_T_A | LCD_T_C12 | LCD_T_R2),    /**< 12x2 LCD panel */                          
+        LCD12x3D   = (LCD_T_D | LCD_T_C12 | LCD_T_R3),    /**< 12x3 LCD panel, special mode PCF21XX, KS0073 */                                  
+        LCD12x3D1  = (LCD_T_D1 | LCD_T_C12 | LCD_T_R3),   /**< 12x3 LCD panel, special mode PCF21XX, KS0073 */                                          
+//        LCD12x3G   = (LCD_T_G | LCD_T_C12 | LCD_T_R3),    /**< 12x3 LCD panel, special mode ST7036 */                                      
+        LCD12x4    = (LCD_T_A | LCD_T_C12 | LCD_T_R4),    /**< 12x4 LCD panel */                  
+        LCD12x4D   = (LCD_T_B | LCD_T_C12 | LCD_T_R4),    /**< 12x4 LCD panel, special mode PCF21XX, KS0073 */                                          
+        LCD16x1    = (LCD_T_A | LCD_T_C16 | LCD_T_R1),    /**< 16x1 LCD panel */                  
+        LCD16x1C   = (LCD_T_C | LCD_T_C16 | LCD_T_R1),    /**< 16x1 LCD panel (actually 8x2) */          
+        LCD16x2    = (LCD_T_A | LCD_T_C16 | LCD_T_R2),    /**< 16x2 LCD panel (default) */
+//        LCD16x2B   = (LCD_T_B | LCD_T_C16 | LCD_T_R2),    /**< 16x2 LCD panel, alternate addressing, wrong.. */
+        LCD16x3D   = (LCD_T_D | LCD_T_C16 | LCD_T_R3),    /**< 16x3 LCD panel, special mode SSD1803 */                      
+//        LCD16x3D1  = (LCD_T_D1 | LCD_T_C16 | LCD_T_R3),   /**< 16x3 LCD panel, special mode SSD1803 */                
+        LCD16x3F   = (LCD_T_F | LCD_T_C16 | LCD_T_R3),    /**< 16x3 LCD panel (actually 24x2) */                
+        LCD16x3G   = (LCD_T_G | LCD_T_C16 | LCD_T_R3),    /**< 16x3 LCD panel, special mode ST7036 */                              
+        LCD16x4    = (LCD_T_A | LCD_T_C16 | LCD_T_R4),    /**< 16x4 LCD panel */        
+//        LCD16x4D   = (LCD_T_D | LCD_T_C16 | LCD_T_R4),    /**< 16x4 LCD panel, special mode SSD1803 */                
+        LCD20x1    = (LCD_T_A | LCD_T_C20 | LCD_T_R1),    /**< 20x1 LCD panel */
+        LCD20x2    = (LCD_T_A | LCD_T_C20 | LCD_T_R2),    /**< 20x2 LCD panel */
+//        LCD20x3    = (LCD_T_A | LCD_T_C20 | LCD_T_R3),    /**< 20x3 LCD panel */                        
+//        LCD20x3D   = (LCD_T_D | LCD_T_C20 | LCD_T_R3),    /**< 20x3 LCD panel, special mode SSD1803 */                        
+//        LCD20x3D1  = (LCD_T_D1 | LCD_T_C20 | LCD_T_R3),   /**< 20x3 LCD panel, special mode SSD1803 */                        
+        LCD20x4    = (LCD_T_A | LCD_T_C20 | LCD_T_R4),    /**< 20x4 LCD panel */
+        LCD20x4D   = (LCD_T_D | LCD_T_C20 | LCD_T_R4),    /**< 20x4 LCD panel, special mode SSD1803 */                        
+        LCD24x1    = (LCD_T_A | LCD_T_C24 | LCD_T_R1),    /**< 24x1 LCD panel */        
+        LCD24x2    = (LCD_T_A | LCD_T_C24 | LCD_T_R2),    /**< 24x2 LCD panel */        
+//        LCD24x3D   = (LCD_T_D | LCD_T_C24 | LCD_T_R3),    /**< 24x3 LCD panel */                
+//        LCD24x3D1  = (LCD_T_D | LCD_T_C24 | LCD_T_R3),    /**< 24x3 LCD panel */                        
+        LCD24x4D   = (LCD_T_D | LCD_T_C24 | LCD_T_R4),    /**< 24x4 LCD panel, special mode KS0078 */                                                          
+//        LCD32x1    = (LCD_T_A | LCD_T_C32 | LCD_T_R1),    /**< 32x1 LCD panel */
+//        LCD32x1C   = (LCD_T_C | LCD_T_C32 | LCD_T_R1),    /**< 32x1 LCD panel (actually 16x2) */                                        
+//        LCD32x2    = (LCD_T_A | LCD_T_C32 | LCD_T_R2),    /**< 32x2 LCD panel */                        
+//        LCD32x4    = (LCD_T_A | LCD_T_C32 | LCD_T_R4),    /**< 32x4 LCD panel */                        
+//        LCD40x1    = (LCD_T_A | LCD_T_C40 | LCD_T_R1),    /**< 40x1 LCD panel */                        
+//        LCD40x1C   = (LCD_T_C | LCD_T_C40 | LCD_T_R1),    /**< 40x1 LCD panel (actually 20x2) */                        
+        LCD40x2    = (LCD_T_A | LCD_T_C40 | LCD_T_R2),    /**< 40x2 LCD panel */                
+        LCD40x4    = (LCD_T_E | LCD_T_C40 | LCD_T_R4)     /**< 40x4 LCD panel, Two controller version */                        
     };
 
-    /** Create a TextLCD interface
+
+    /** LCD Controller Device */
+    enum LCDCtrl {
+        HD44780         =  0 |  LCD_C_PAR,                                                                    /**<  HD44780 or full equivalent (default)         */    
+        AC780           =  1 | (LCD_C_PAR | LCD_C_SPI4 | LCD_C_I2C | LCD_C_PDN),                              /**<  AC780/KS0066i 4/8 bit, SPI, I2C              */
+        AIP31068        =  2 | (LCD_C_SPI3_9  | LCD_C_I2C | LCD_C_BST),                                       /**<  AIP31068 I2C, SPI3                           */                           
+        KS0073          =  3 | (LCD_C_PAR | LCD_C_SPI3_24 | LCD_C_PDN),                                       /**<  KS0073 4/8 bit, SPI3                         */
+        KS0078          =  4 | (LCD_C_PAR | LCD_C_SPI3_24 | LCD_C_PDN),                                       /**<  KS0078  24x4 support, 4/8 bit, SPI3          */                   
+        PCF2103_3V3     =  5 | (LCD_C_PAR | LCD_C_I2C),                                                       /**<  PCF2103 3V3 no Booster, 4/8 bit, I2C         */                                   
+        PCF2113_3V3     =  6 | (LCD_C_PAR | LCD_C_I2C     | LCD_C_BST | LCD_C_CTR),                           /**<  PCF2113 3V3 with Booster, 4/8 bit, I2C       */                           
+        PCF2116_3V3     =  7 | (LCD_C_PAR | LCD_C_I2C     | LCD_C_BST),                                       /**<  PCF2116 3V3 with Booster, 4/8 bit, I2C       */                           
+        PCF2116_5V      =  8 | (LCD_C_PAR | LCD_C_I2C),                                                       /**<  PCF2116 5V no Booster, 4/8 bit, I2C          */        
+        PCF2116C_5V     =  9 | (LCD_C_PAR | LCD_C_I2C     | LCD_C_BST) | LCD_C_FT1,                           /**<  PCF2116C 3V3 with Booster, 4/8 bit, I2C       */                           
+        PCF2119_3V3     = 10 | (LCD_C_PAR | LCD_C_I2C     | LCD_C_BST | LCD_C_CTR),                           /**<  PCF2119 3V3 with Booster, 4/8 bit, I2C       */                           
+//        PCF2119C_3V3    = 11 | (LCD_C_PAR | LCD_C_I2C     | LCD_C_BST | LCD_C_CTR), LCD_C_FT1,                /**<  PCF2119K 3V3 with Booster, 4/8 bit, I2C       */                           
+//        PCF2119_5V      = 12 | (LCD_C_PAR | LCD_C_I2C),                                                       /**<  PCF2119 5V no Booster, 4/8 bit, I2C          */
+        PT6314          = 13 | (LCD_C_PAR | LCD_C_SPI3_16 | LCD_C_CTR),                                       /**<  PT6314  VFD, 4/8 bit, SPI3                   */
+        SSD1803_3V3     = 14 | (LCD_C_PAR | LCD_C_SPI3_24 | LCD_C_I2C | LCD_C_BST | LCD_C_CTR | LCD_C_PDN),   /**<  SSD1803 3V3 with Booster, 4/8 bit, I2C, SPI3 */
+//        SSD1803_5V      = 15 | (LCD_C_PAR | LCD_C_SPI3_24 | LCD_C_I2C | LCD_C_BST | LCD_C_CTR | LCD_C_PDN),   /**<  SSD1803 3V3 with Booster, 4/8 bit, I2C, SPI3 */
+        ST7032_3V3      = 16 | (LCD_C_PAR | LCD_C_SPI4    | LCD_C_I2C | LCD_C_BST | LCD_C_CTR),               /**<  ST7032  3V3 with Booster, 4/8 bit, SPI4, I2C */   
+        ST7032_5V       = 17 | (LCD_C_PAR | LCD_C_SPI4    | LCD_C_I2C | LCD_C_CTR),                           /**<  ST7032  5V no Booster, 4/8 bit, SPI4, I2C    */           
+        ST7036_3V3      = 18 | (LCD_C_PAR | LCD_C_SPI4    | LCD_C_I2C | LCD_C_BST | LCD_C_CTR),               /**<  ST7036  3V3 with Booster, 4/8 bit, SPI4, I2C */   
+        ST7036_5V       = 19 | (LCD_C_PAR | LCD_C_SPI4    | LCD_C_I2C | LCD_C_BST | LCD_C_CTR),               /**<  ST7036  5V no Booster, 4/8 bit, SPI4, I2C    */   
+        ST7066_ACM      = 20 | (LCD_C_PAR | LCD_C_I2C),                                                       /**<  ST7066 4/8 bit, I2C on ACM1602 using a PIC   */        
+        ST7070          = 21 | (LCD_C_PAR | LCD_C_SPI3_8 | LCD_C_SPI4),                                       /**<  ST7070 4/8 bit, SPI3                         */
+        US2066_3V3      = 22 | (LCD_C_PAR | LCD_C_SPI3_24 | LCD_C_I2C | LCD_C_CTR | LCD_C_PDN),               /**<  US2066/SSD1311 3V3, 4/8 bit, I2C, SPI3 */
+        WS0010          = 23 | (LCD_C_PAR | LCD_C_SPI3_10 | LCD_C_PDN)                                        /**<  WS0010/RS0010 OLED Controller, 4/8 bit, SPI3 */    
+//        WS0012          = 24 | (LCD_C_PAR | LCD_C_SPI3_10 | LCD_C_I2C | LCD_C_PDN),                           /**<  WS0012 4/8 bit, SPI, I2C                     */
+
+    };
+
+
+    /** LCD Cursor control */
+    enum LCDCursor {
+        CurOff_BlkOff = 0x00,  /**<  Cursor Off, Blinking Char Off */    
+        CurOn_BlkOff  = 0x02,  /**<  Cursor On, Blinking Char Off */    
+        CurOff_BlkOn  = 0x01,  /**<  Cursor Off, Blinking Char On */    
+        CurOn_BlkOn   = 0x03   /**<  Cursor On, Blinking Char On */    
+    };
+
+    /** LCD Display control */
+    enum LCDMode {
+        DispOff = 0x00,  /**<  Display Off */    
+        DispOn  = 0x04   /**<  Display On */            
+    };
+
+   /** LCD Backlight control */
+    enum LCDBacklight {
+        LightOff,        /**<  Backlight Off */    
+        LightOn          /**<  Backlight On */            
+    };
+
+   /** LCD Blink control (UDC), supported for some Controllers */
+    enum LCDBlink {
+        BlinkOff,        /**<  Blink Off */    
+        BlinkOn          /**<  Blink On  */            
+    };
+
+   /** LCD Orientation control, supported for some Controllers */
+    enum LCDOrient {
+        Top,             /**<  Top view */    
+        Bottom           /**<  Upside down view */            
+    };
+
+   /** LCD BigFont control, supported for some Controllers */
+    enum LCDBigFont {
+        None,            /**<  no lines              */    
+        TopLine,         /**<  1+2 line              */    
+        CenterLine,      /**<  2+3 line              */    
+        BottomLine,      /**<  2+3 line or 3+4 line  */
+        TopBottomLine    /**<  1+2 line and 3+4 line */
+    };
+
+
+   /** Convert ASCII character code to the LCD fonttable code
      *
-     * @param rs    Instruction/data control line
-     * @param e     Enable line (clock)
-     * @param d4-d7 Data lines for using as a 4-bit interface
-     * @param type  Sets the panel size/addressing mode (default = LCD16x2)
+     * @param c The character to write to the display
+     * @return The character code for the specific fonttable of the controller
      */
-    TextLCD(PinName rs, PinName e, PinName d4, PinName d5, PinName d6, PinName d7, LCDType type = LCD16x2);
+   int ASCII_2_LCD (int c);
+
 
+#if(LCD_PRINTF != 1)
+   /** Write a character to the LCD
+     *
+     * @param c The character to write to the display
+     */
+   int putc(int c);
+
+    /** Write a raw string to the LCD
+     *
+     * @param string text, may be followed by variables to emulate formatting the string.
+     *                     However, printf formatting is NOT supported and variables will be ignored! 
+     */
+    int printf(const char* text, ...);
+#else    
 #if DOXYGEN_ONLY
     /** Write a character to the LCD
      *
@@ -67,45 +306,913 @@
      */
     int putc(int c);
 
-    /** Write a formated string to the LCD
+    /** Write a formatted string to the LCD
      *
      * @param format A printf-style format string, followed by the
-     *               variables to use in formating the string.
+     *               variables to use in formatting the string.
      */
-    int printf(const char* format, ...);
+    int printf(const char* format, ...);   
 #endif
+    
+#endif    
 
-    /** Locate to a screen column and row
+    /** Locate cursor to a screen column and row
      *
      * @param column  The horizontal position from the left, indexed from 0
      * @param row     The vertical position from the top, indexed from 0
      */
     void locate(int column, int row);
 
-    /** Clear the screen and locate to 0,0 */
+    /** Return the memoryaddress of screen column and row location
+     *
+     * @param column  The horizontal position from the left, indexed from 0
+     * @param row     The vertical position from the top, indexed from 0
+     * @return        The memoryaddress of screen column and row location
+     */
+    int  getAddress(int column, int row);     
+    
+    /** Set the memoryaddress of screen column and row location
+     *
+     * @param column  The horizontal position from the left, indexed from 0
+     * @param row     The vertical position from the top, indexed from 0
+     */
+    void setAddress(int column, int row);        
+
+    /** Clear the screen and locate to 0,0
+     */
     void cls();
 
+    /** Return the number of rows
+     *
+     * @return  The number of rows
+     */
     int rows();
-    int columns();
+    
+    /** Return the number of columns
+     *
+     * @return  The number of columns
+     */  
+    int columns();  
+
+    /** Set the Cursormode
+     *
+     * @param cursorMode  The Cursor mode (CurOff_BlkOff, CurOn_BlkOff, CurOff_BlkOn, CurOn_BlkOn)
+     */
+    void setCursor(LCDCursor cursorMode);     
+    
+    /** Set the Displaymode
+     *
+     * @param displayMode The Display mode (DispOff, DispOn)
+     */
+    void setMode(LCDMode displayMode);     
+
+    /** Set the Backlight mode
+     *
+     *  @param backlightMode The Backlight mode (LightOff, LightOn)
+     */
+    void setBacklight(LCDBacklight backlightMode); 
+
+    /** Set User Defined Characters (UDC)
+     *
+     * @param unsigned char c   The Index of the UDC (0..7) for HD44780 clones and (0..15) for some more advanced controllers
+     * @param char *udc_data    The bitpatterns for the UDC (8 bytes of 5 significant bits for bitpattern and 3 bits for blinkmode (advanced types))       
+     */
+    void setUDC(unsigned char c, char *udc_data);
+
+    /** Set UDC Blink and Icon blink
+     * setUDCBlink method is supported by some compatible devices (eg SSD1803) 
+     *
+     * @param blinkMode The Blink mode (BlinkOff, BlinkOn)
+     */
+    void setUDCBlink(LCDBlink blinkMode);
+
+    /** Set Contrast
+     * setContrast method is supported by some compatible devices (eg ST7032i) that have onboard LCD voltage generation
+     * Code imported from fork by JH1PJL
+     *
+     * @param unsigned char c   contrast data (6 significant bits, valid range 0..63, Value 0 will disable the Vgen)  
+     * @return none
+     */
+    void setContrast(unsigned char c = LCD_DEF_CONTRAST);
+
+    /** Set Power
+     * setPower method is supported by some compatible devices (eg SSD1803) that have power down modes
+     *
+     * @param bool powerOn  Power on/off   
+     * @return none
+     */
+    void setPower(bool powerOn = true);
+
+    /** Set Orient
+     * setOrient method is supported by some compatible devices (eg SSD1803, US2066) that have top/bottom view modes
+     *
+     * @param LCDOrient orient Orientation 
+     * @return none
+     */
+    void setOrient(LCDOrient orient = Top);
+
+    /** Set Big Font
+     * setBigFont method is supported by some compatible devices (eg SSD1803, US2066) 
+     *
+     * @param lines  The selected Big Font lines (None, TopLine, CenterLine, BottomLine, TopBottomLine)
+     *                                            Double height characters can be shown on lines 1+2, 2+3, 3+4 or 1+2 and 3+4
+     *                                            Valid double height lines depend on the LCDs number of rows.
+     */
+    void setBigFont(LCDBigFont lines);
+
+    /** Set Icons
+    *
+    * @param unsigned char idx   The Index of the icon pattern (0..15) for KS0073 and similar controllers
+    *                            and Index (0..31) for PCF2103 and similar controllers  
+    * @param unsigned char data  The bitpattern for the icons (6 lsb for KS0073 bitpattern (5 lsb for KS0078) and 2 msb for blinkmode)       
+    *                            The bitpattern for the PCF2103 icons is 5 lsb (UDC 0..2) and 5 lsb for blinkmode (UDC 4..6)         
+    */    
+    void setIcon(unsigned char idx, unsigned char data);
+
+    /** Clear Icons
+     *
+     * @param  none
+     * @return none
+     */
+    //@TODO Add support for 40x4 dual controller       
+    void clrIcon();
+
+   /** Set Invert
+     * setInvert method is supported by some compatible devices (eg KS0073) to swap between black and white 
+     *
+     * @param bool invertOn  Invert on/off   
+     * @return none
+     */
+   //@TODO Add support for 40x4 dual controller  
+   void setInvert(bool invertOn);
 
 protected:
 
+   /** LCD controller select, mainly used for LCD40x4
+     */
+    enum _LCDCtrl_Idx {
+        _LCDCtrl_0,  /*<  Primary */    
+        _LCDCtrl_1,  /*<  Secondary */            
+    };
+
+    /** LCD Datalength control to select between 4 or 8 bit data/commands, mainly used for native Serial interface */
+    enum _LCDDatalength {
+        _LCD_DL_4 = 0x00,  /**<  Datalength 4 bit */    
+        _LCD_DL_8 = 0x10   /**<  Datalength 8 bit */            
+    };
+
+    /** Create a TextLCD_Base interface
+      * @brief Base class, can not be instantiated
+      *
+      * @param type  Sets the panel size/addressing mode (default = LCD16x2)
+      * @param ctrl  LCD controller (default = HD44780)           
+      */
+    TextLCD_Base(LCDType type = LCD16x2, LCDCtrl ctrl = HD44780);
+    
     // Stream implementation functions
     virtual int _putc(int value);
     virtual int _getc();
 
-    int address(int column, int row);
-    void character(int column, int row, int c);
-    void writeByte(int value);
-    void writeCommand(int command);
-    void writeData(int data);
+/** Medium level initialisation method for LCD controller
+  *  @param _LCDDatalength dl sets the datalength of data/commands
+  *  @return none
+  */
+    void _init(_LCDDatalength dl = _LCD_DL_4);     
+
+/** Low level initialisation method for LCD controller
+  *   Set number of lines, fonttype, no cursor etc
+  *   The controller is accessed in 4-bit parallel mode either directly via mbed pins or through I2C or SPI expander.
+  *   Some controllers also support native I2C or SPI interfaces. 
+  *
+  *  @param _LCDDatalength dl sets the 4 or 8 bit datalength of data/commands. Required for some native serial modes.
+  *  @return none  
+  */
+    void _initCtrl(_LCDDatalength dl = _LCD_DL_4);    
+
+/** Low level character address set method
+  */  
+    int  _address(int column, int row);
+    
+/** Low level cursor enable or disable method
+  */  
+    void _setCursor(LCDCursor show);
+
+/** Low level method to store user defined characters for current controller
+  *
+  * @param unsigned char c   The Index of the UDC (0..7) for HD44780 clones and (0..15) for some more advanced controllers 
+  * @param char *udc_data    The bitpatterns for the UDC (8 bytes of 5 significant bits)     
+  */     
+    void _setUDC(unsigned char c, char *udc_data);   
+
+/** Low level method to restore the cursortype and display mode for current controller
+  */     
+    void _setCursorAndDisplayMode(LCDMode displayMode, LCDCursor cursorType);       
+    
+/** Low level nibble write operation to LCD controller (serial or parallel)
+  */
+    void _writeNibble(int value);
+   
+/** Low level command byte write operation to LCD controller.
+  * Methods resets the RS bit and provides the required timing for the command.
+  */
+    void _writeCommand(int command);
+    
+/** Low level data byte write operation to LCD controller (serial or parallel).
+  * Methods sets the RS bit and provides the required timing for the data.
+  */   
+    void _writeData(int data);
+
+/** Pure Virtual Low level writes to LCD Bus (serial or parallel)
+  * Set the Enable pin.
+  */
+    virtual void _setEnable(bool value) = 0;
+
+/** Pure Virtual Low level writes to LCD Bus (serial or parallel)
+  * Set the RS pin ( 0 = Command, 1 = Data).
+  */   
+    virtual void _setRS(bool value) = 0;  
+
+/** Pure Virtual Low level writes to LCD Bus (serial or parallel)
+  * Set the BL pin (0 = Backlight Off, 1 = Backlight On).
+  */   
+    virtual void _setBL(bool value) = 0;
+    
+/** Pure Virtual Low level writes to LCD Bus (serial or parallel)
+  * Set the databus value (4 bit).
+  */   
+    virtual void _setData(int value) = 0;
+
+/** Low level byte write operation to LCD controller (serial or parallel)
+  * Depending on the RS pin this byte will be interpreted as data or command
+  */
+    virtual void _writeByte(int value);
 
+//Display type
+    LCDType _type;      // Display type 
+    int _nr_cols;       
+    int _nr_rows;    
+    int _addr_mode;     // Addressing mode of LCDType, defines relation between display row,col and controller memory address
+       
+//Display mode
+    LCDMode _currentMode;
+
+//Controller type 
+    LCDCtrl _ctrl;      // Controller type
+    int _font;          // ASCII character fonttable
+    
+//Controller select, mainly used for LCD40x4 
+    _LCDCtrl_Idx _ctrl_idx;    
+
+// Cursor
+    int _column;
+    int _row;
+    LCDCursor _currentCursor; 
+
+// Function modes saved to allow switch between Instruction sets after initialisation time 
+    int _function, _function_1, _function_x;
+
+// Icon, Booster mode and contrast saved to allow contrast change at later time
+// Only available for controllers with added features
+    int _icon_power, _contrast;          
+};
+
+//--------- End TextLCD_Base -----------
+
+
+//--------- Start TextLCD Bus -----------
+
+/** Create a TextLCD interface for using regular mbed pins
+  *
+  */
+class TextLCD : public TextLCD_Base {
+public:    
+    /** Create a TextLCD interface for using regular mbed pins
+     *
+     * @param rs    Instruction/data control line
+     * @param e     Enable line (clock)
+     * @param d4-d7 Data lines for using as a 4-bit interface
+     * @param type  Sets the panel size/addressing mode (default = LCD16x2)
+     * @param bl    Backlight control line (optional, default = NC)      
+     * @param e2    Enable2 line (clock for second controller, LCD40x4 only)  
+     * @param ctrl  LCD controller (default = HD44780)           
+     */
+    TextLCD(PinName rs, PinName e, PinName d4, PinName d5, PinName d6, PinName d7, LCDType type = LCD16x2, PinName bl = NC, PinName e2 = NC, LCDCtrl ctrl = HD44780);
+
+   /** Destruct a TextLCD interface for using regular mbed pins
+     *
+     * @param  none
+     * @return none
+     */ 
+    virtual ~TextLCD();
+
+private:    
+
+/** Implementation of pure Virtual Low level writes to LCD Bus (parallel)
+  * Set the Enable pin.
+  */
+    virtual void _setEnable(bool value);
+
+/** Implementation of pure Virtual Low level writes to LCD Bus (parallel)
+  * Set the RS pin (0 = Command, 1 = Data).
+  */   
+    virtual void _setRS(bool value);  
+
+/** Implementation of pure Virtual Low level writes to LCD Bus (parallel)
+  * Set the BL pin (0 = Backlight Off, 1 = Backlight On).
+  */   
+    virtual void _setBL(bool value);
+    
+/** Implementation of pure Virtual Low level writes to LCD Bus (parallel)
+  * Set the databus value (4 bit).
+  */   
+    virtual void _setData(int value);
+
+/** Regular mbed pins bus
+  */
     DigitalOut _rs, _e;
     BusOut _d;
-    LCDType _type;
-
-    int _column;
-    int _row;
+    
+/** Optional Hardware pins for the Backlight and LCD40x4 device
+  * Default PinName value is NC, must be used as pointer to avoid issues with mbed lib and DigitalOut pins
+  */
+    DigitalOut *_bl, *_e2;                                                                                                                                                                                                                                                     
 };
 
+//----------- End TextLCD ---------------
+
+
+//--------- Start TextLCD_I2C -----------
+#if(LCD_I2C == 1) /* I2C Expander PCF8574/MCP23008 */
+
+/** Create a TextLCD interface using an I2C PCF8574 (or PCF8574A) or MCP23008 portexpander
+  *
+  */
+class TextLCD_I2C : public TextLCD_Base {    
+public:
+   /** Create a TextLCD interface using an I2C PCF8574 (or PCF8574A) or MCP23008 portexpander
+     *
+     * @param i2c             I2C Bus
+     * @param deviceAddress   I2C slave address (PCF8574 (or PCF8574A) or MCP23008 portexpander, default = PCF8574_SA0 = 0x40)
+     * @param type            Sets the panel size/addressing mode (default = LCD16x2)
+     * @param ctrl            LCD controller (default = HD44780)                
+     */
+    TextLCD_I2C(I2C *i2c, char deviceAddress = PCF8574_SA0, LCDType type = LCD16x2, LCDCtrl ctrl = HD44780);
+
+private:
+    
+/** Place the Enable bit in the databus shadowvalue
+  *  Used for mbed I2C portexpander
+  *  @param value data to write
+  *  @return none
+  */
+    void _setEnableBit(bool value);    
+
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial expander)
+  * Set the Enable pin.
+  */
+    virtual void _setEnable(bool value);
+
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial expander)
+  * Set the RS pin (0 = Command, 1 = Data).
+  */   
+    virtual void _setRS(bool value);  
+
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial expander)
+  * Set the BL pin (0 = Backlight Off, 1 = Backlight On).
+  */   
+    virtual void _setBL(bool value);
+    
+/** Place the 4bit data in the databus shadowvalue
+  *  Used for mbed I2C portexpander
+  *  @param value data to write
+  *  @return none
+  */
+    void _setDataBits(int value);
+
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial expander)
+  * Set the databus value (4 bit).
+  */   
+    virtual void _setData(int value);
+    
+//New optimized
+//Test faster _writeByte 0.11s vs 0.27s for a 20x4 fillscreen (PCF8574)
+//Test faster _writeByte 0.14s vs 0.34s for a 20x4 fillscreen (MCP23008)
+
+/** Low level writes to LCD serial bus expander
+  */
+    virtual void _writeByte(int value);   
+
+/** Write data to MCP23008 I2C portexpander
+  *  @param reg register to write
+  *  @param value data to write
+  *  @return none     
+  */
+    void _writeRegister (int reg, int value);     
+  
+//I2C bus
+    I2C *_i2c;
+    char _slaveAddress;
+    
+// Internal bus shadow value for serial bus only
+    char _lcd_bus;      
+};
+#endif /* I2C Expander PCF8574/MCP23008 */
+
+//---------- End TextLCD_I2C ------------
+
+
+//--------- Start TextLCD_SPI -----------
+#if(LCD_SPI == 1) /* SPI Expander SN74595          */
+
+/** Create a TextLCD interface using an SPI 74595 portexpander
+  *
+  */
+class TextLCD_SPI : public TextLCD_Base {    
+public:
+    /** Create a TextLCD interface using an SPI 74595 portexpander
+     *
+     * @param spi             SPI Bus
+     * @param cs              chip select pin (active low)
+     * @param type            Sets the panel size/addressing mode (default = LCD16x2)
+     * @param ctrl            LCD controller (default = HD44780)                     
+     */
+    TextLCD_SPI(SPI *spi, PinName cs, LCDType type = LCD16x2, LCDCtrl ctrl = HD44780);
+
+private:
+
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial expander)
+  * Set the Enable pin.
+  */
+    virtual void _setEnable(bool value);
+
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial expander)
+  * Set the RS pin (0 = Command, 1 = Data).
+  */   
+    virtual void _setRS(bool value);  
+
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial expander)
+  * Set the BL pin (0 = Backlight Off, 1 = Backlight On).
+  */   
+    virtual void _setBL(bool value);
+    
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial expander)
+  * Set the databus value (4 bit).
+  */   
+    virtual void _setData(int value);     
+   
+// SPI bus        
+    SPI *_spi;
+    DigitalOut _cs;    
+    
+// Internal bus shadow value for serial bus only
+    char _lcd_bus;   
+};
+#endif /* SPI Expander SN74595          */
+//---------- End TextLCD_SPI ------------
+
+
+//--------- Start TextLCD_I2C_N -----------
+#if(LCD_I2C_N == 1)  /* Native I2C */
+
+/** Create a TextLCD interface using a controller with native I2C interface
+  *
+  */
+class TextLCD_I2C_N : public TextLCD_Base {    
+public:
+    /** Create a TextLCD interface using a controller with native I2C interface
+     *
+     * @param i2c             I2C Bus
+     * @param deviceAddress   I2C slave address (default = ST7032_SA = 0x7C)  
+     * @param type            Sets the panel size/addressing mode (default = LCD16x2)
+     * @param bl              Backlight control line (optional, default = NC)       
+     * @param ctrl            LCD controller (default = ST7032_3V3)                     
+     */
+    TextLCD_I2C_N(I2C *i2c, char deviceAddress = ST7032_SA, LCDType type = LCD16x2, PinName bl = NC, LCDCtrl ctrl = ST7032_3V3);
+
+  /** Destruct a TextLCD interface using a controller with native I2C interface
+    */
+    virtual ~TextLCD_I2C_N(void);
+
+private:
+
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial native)
+  * Set the Enable pin.
+  */
+    virtual void _setEnable(bool value);
+
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial native)
+  * Set the RS pin ( 0 = Command, 1 = Data).
+  */   
+    virtual void _setRS(bool value);  
+
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial native)
+  * Set the BL pin (0 = Backlight Off, 1 = Backlight On).
+  */   
+    virtual void _setBL(bool value);
+    
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial native)
+  * Set the databus value (4 bit).
+  */   
+    virtual void _setData(int value);
+
+/** Low level writes to LCD serial bus only (serial native)
+  */
+    virtual void _writeByte(int value);
+
+//I2C bus
+    I2C *_i2c;
+    char _slaveAddress;
+    
+// controlbyte to select between data and command. Internal shadow value for serial bus only
+    char _controlbyte;   
+    
+//Backlight
+    DigitalOut *_bl;       
+   
+};
+#endif /* Native I2C */
+//---------- End TextLCD_I2C_N ------------
+
+
+//--------- Start TextLCD_SPI_N -----------
+#if(LCD_SPI_N == 1) /* Native SPI bus     */
+
+/** Create a TextLCD interface using a controller with native SPI4 interface
+  *
+  */
+class TextLCD_SPI_N : public TextLCD_Base {    
+public:
+    /** Create a TextLCD interface using a controller with native SPI4 interface
+     *
+     * @param spi             SPI Bus
+     * @param cs              chip select pin (active low)
+     * @param rs              Instruction/data control line
+     * @param type            Sets the panel size/addressing mode (default = LCD16x2)
+     * @param bl              Backlight control line (optional, default = NC)  
+     * @param ctrl            LCD controller (default = ST7032_3V3)                     
+     */
+    TextLCD_SPI_N(SPI *spi, PinName cs, PinName rs, LCDType type = LCD16x2, PinName bl = NC, LCDCtrl ctrl = ST7032_3V3);
+
+    /** Destruct a TextLCD interface using a controller with native SPI4 interface
+      */
+    virtual ~TextLCD_SPI_N(void);
+
+private:
+
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial native)
+  * Set the Enable pin.
+  */
+    virtual void _setEnable(bool value);
+
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial native)
+  * Set the RS pin (0 = Command, 1 = Data).
+  */   
+    virtual void _setRS(bool value);  
+
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial native)
+  * Set the BL pin (0 = Backlight Off, 1 = Backlight On).
+  */   
+    virtual void _setBL(bool value);
+    
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial native)
+  * Set the databus value (4 bit).
+  */   
+    virtual void _setData(int value);
+
+/** Low level writes to LCD serial bus only (serial native)
+  */
+    virtual void _writeByte(int value);
+   
+// SPI bus        
+    SPI *_spi;
+    DigitalOut _cs;    
+    DigitalOut _rs;
+    
+//Backlight    
+    DigitalOut *_bl;
+};
+#endif /* Native SPI bus     */
+//---------- End TextLCD_SPI_N ------------
+
+
+//-------- Start TextLCD_SPI_N_3_8 --------
+#if(LCD_SPI_N_3_8 == 1) /* Native SPI bus     */
+/** Create a TextLCD interface using a controller with native SPI3 8 bits interface
+  * This mode is supported by ST7070. 
+  *
+  */
+class TextLCD_SPI_N_3_8 : public TextLCD_Base {    
+public:
+ /** Create a TextLCD interface using a controller with a native SPI3 8 bits interface
+   * This mode is supported by ST7070. Note that implementation in TexTLCD is not very efficient due to
+   * structure of the TextLCD library: each databyte is written separately and requires a separate 'count command' set to 1 byte.
+   *
+   * @param spi             SPI Bus
+   * @param cs              chip select pin (active low)
+   * @param type            Sets the panel size/addressing mode (default = LCD16x2)
+   * @param bl              Backlight control line (optional, default = NC)  
+   * @param ctrl            LCD controller (default = ST7070) 
+   */       
+  TextLCD_SPI_N_3_8(SPI *spi, PinName cs, LCDType type = LCD16x2, PinName bl = NC, LCDCtrl ctrl = ST7070);
+
+  /** Destruct a TextLCD interface using a controller with native SPI3_8 interface
+    */
+  virtual ~TextLCD_SPI_N_3_8(void);
+
+private:
+
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial native)
+  * Set the Enable pin.
+  */
+    virtual void _setEnable(bool value);
+
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial native)
+  * Set the RS pin (0 = Command, 1 = Data).
+  */   
+    virtual void _setRS(bool value);  
+
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial native)
+  * Set the BL pin (0 = Backlight Off, 1 = Backlight On).
+  */   
+    virtual void _setBL(bool value);
+    
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial native)
+  * Set the databus value (4 bit).
+  */   
+    virtual void _setData(int value);
+
+/** Low level writes to LCD serial bus only (serial native)
+  */
+    virtual void _writeByte(int value);
+   
+// SPI bus        
+    SPI *_spi;
+    DigitalOut _cs;    
+
+// controlbyte to select between data and command. Internal shadow value for serial bus only
+    char _controlbyte;   
+    
+//Backlight    
+    DigitalOut *_bl;
+};
+ 
+#endif /* Native SPI bus     */  
+//------- End TextLCD_SPI_N_3_8 -----------
+
+
+//------- Start TextLCD_SPI_N_3_9 ---------
+#if(LCD_SPI_N_3_9 == 1) /* Native SPI bus     */
+//Code checked out on logic analyser. Not yet tested on hardware..
+
+/** Create a TextLCD interface using a controller with native SPI3 9 bits interface
+  * Note: current mbed libs only support SPI 9 bit mode for NXP platforms
+  *
+  */
+class TextLCD_SPI_N_3_9 : public TextLCD_Base {    
+public:
+   /** Create a TextLCD interface using a controller with native SPI3 9 bits interface
+     * Note: current mbed libs only support SPI 9 bit mode for NXP platforms
+     *
+     * @param spi             SPI Bus
+     * @param cs              chip select pin (active low)
+     * @param type            Sets the panel size/addressing mode (default = LCD16x2)
+     * @param bl              Backlight control line (optional, default = NC)  
+     * @param ctrl            LCD controller (default = AIP31068)                     
+     */
+    TextLCD_SPI_N_3_9(SPI *spi, PinName cs, LCDType type = LCD16x2, PinName bl = NC, LCDCtrl ctrl = AIP31068);
+
+  /** Destruct a TextLCD interface using a controller with native SPI3_9 interface
+    */
+    virtual ~TextLCD_SPI_N_3_9(void);
+
+private:
+
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial native)
+  * Set the Enable pin.
+  */
+    virtual void _setEnable(bool value);
+
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial native)
+  * Set the RS pin (0 = Command, 1 = Data).
+  */   
+    virtual void _setRS(bool value);  
+
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial native)
+  * Set the BL pin (0 = Backlight Off, 1 = Backlight On).
+  */   
+    virtual void _setBL(bool value);
+    
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial native)
+  * Set the databus value (4 bit).
+  */   
+    virtual void _setData(int value);
+
+/** Low level writes to LCD serial bus only (serial native)
+  */
+    virtual void _writeByte(int value);
+   
+// SPI bus        
+    SPI *_spi;
+    DigitalOut _cs;    
+   
+// controlbyte to select between data and command. Internal shadow value for serial bus only
+    char _controlbyte;   
+
+//Backlight
+    DigitalOut *_bl;    
+};
+#endif /* Native SPI bus     */
+//-------- End TextLCD_SPI_N_3_9 ----------
+
+
+//------- Start TextLCD_SPI_N_3_10 ---------
+#if(LCD_SPI_N_3_10 == 1) /* Native SPI bus     */
+
+/** Create a TextLCD interface using a controller with native SPI3 10 bits interface
+  * Note: current mbed libs only support SPI 10 bit mode for NXP platforms
+  *
+  */
+class TextLCD_SPI_N_3_10 : public TextLCD_Base {    
+public:
+   /** Create a TextLCD interface using a controller with native SPI3 10 bits interface
+     * Note: current mbed libs only support SPI 10 bit mode for NXP platforms
+     *
+     * @param spi             SPI Bus
+     * @param cs              chip select pin (active low)
+     * @param type            Sets the panel size/addressing mode (default = LCD16x2)
+     * @param bl              Backlight control line (optional, default = NC)  
+     * @param ctrl            LCD controller (default = AIP31068)                     
+     */
+    TextLCD_SPI_N_3_10(SPI *spi, PinName cs, LCDType type = LCD16x2, PinName bl = NC, LCDCtrl ctrl = AIP31068);
+
+  /** Destruct a TextLCD interface using a controller with native SPI3_10 interface
+    */
+    virtual ~TextLCD_SPI_N_3_10(void);
+
+private:
+
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial native)
+  * Set the Enable pin.
+  */
+    virtual void _setEnable(bool value);
+
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial native)
+  * Set the RS pin (0 = Command, 1 = Data).
+  */   
+    virtual void _setRS(bool value);  
+
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial native)
+  * Set the BL pin (0 = Backlight Off, 1 = Backlight On).
+  */   
+    virtual void _setBL(bool value);
+    
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial native)
+  * Set the databus value (4 bit).
+  */   
+    virtual void _setData(int value);
+
+/** Low level writes to LCD serial bus only (serial native)
+  */
+    virtual void _writeByte(int value);
+   
+// SPI bus        
+    SPI *_spi;
+    DigitalOut _cs;    
+       
+// controlbyte to select between data and command. Internal shadow value for serial bus only
+    char _controlbyte;   
+
+//Backlight
+    DigitalOut *_bl;    
+};
+
+#endif /* Native SPI bus     */
+//-------- End TextLCD_SPI_N_3_10 ----------
+
+
+//------- Start TextLCD_SPI_N_3_16 ---------
+#if(LCD_SPI_N_3_16 == 1) /* Native SPI bus     */
+
+/** Create a TextLCD interface using a controller with native SPI3 16 bits interface
+  *
+  */
+class TextLCD_SPI_N_3_16 : public TextLCD_Base {    
+public:
+   /** Create a TextLCD interface using a controller with native SPI3 16 bits interface
+     *
+     * @param spi             SPI Bus
+     * @param cs              chip select pin (active low)
+     * @param type            Sets the panel size/addressing mode (default = LCD16x2)
+     * @param bl              Backlight control line (optional, default = NC)  
+     * @param ctrl            LCD controller (default = PT6314)                     
+     */
+    TextLCD_SPI_N_3_16(SPI *spi, PinName cs, LCDType type = LCD16x2, PinName bl = NC, LCDCtrl ctrl = PT6314);
+
+  /** Destruct a TextLCD interface using a controller with native SPI3_16 interface
+    */
+    virtual ~TextLCD_SPI_N_3_16(void);
+
+private:
+
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial native)
+  * Set the Enable pin.
+  */
+    virtual void _setEnable(bool value);
+
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial native)
+  * Set the RS pin (0 = Command, 1 = Data).
+  */   
+    virtual void _setRS(bool value);  
+
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial native)
+  * Set the BL pin (0 = Backlight Off, 1 = Backlight On).
+  */   
+    virtual void _setBL(bool value);
+    
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial native)
+  * Set the databus value (4 bit).
+  */   
+    virtual void _setData(int value);
+
+/** Low level writes to LCD serial bus only (serial native)
+  */
+    virtual void _writeByte(int value);
+   
+// SPI bus        
+    SPI *_spi;
+    DigitalOut _cs;    
+   
+// controlbyte to select between data and command. Internal shadow value for serial bus only
+    char _controlbyte;   
+
+//Backlight
+    DigitalOut *_bl;    
+};
+#endif /* Native SPI bus     */
+//-------- End TextLCD_SPI_N_3_16 ----------
+
+
+//------- Start TextLCD_SPI_N_3_24 ---------
+#if(LCD_SPI_N_3_24 == 1) /* Native SPI bus     */
+
+/** Create a TextLCD interface using a controller with native SPI3 24 bits interface
+  * Note: lib uses SPI 8 bit mode
+  *
+  */
+class TextLCD_SPI_N_3_24 : public TextLCD_Base {    
+public:
+   /** Create a TextLCD interface using a controller with native SPI3 24 bits interface
+     * Note: lib uses SPI 8 bit mode
+     *
+     * @param spi             SPI Bus
+     * @param cs              chip select pin (active low)
+     * @param type            Sets the panel size/addressing mode (default = LCD16x2)
+     * @param bl              Backlight control line (optional, default = NC)  
+     * @param ctrl            LCD controller (default = SSD1803)                     
+     */
+    TextLCD_SPI_N_3_24(SPI *spi, PinName cs, LCDType type = LCD16x2, PinName bl = NC, LCDCtrl ctrl = SSD1803_3V3);
+
+  /** Destruct a TextLCD interface using a controller with native SPI3_24 interface
+    */
+    virtual ~TextLCD_SPI_N_3_24(void);
+
+private:
+
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial native)
+  * Set the Enable pin.
+  */
+    virtual void _setEnable(bool value);
+
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial native)
+  * Set the RS pin (0 = Command, 1 = Data).
+  */   
+    virtual void _setRS(bool value);  
+
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial native)
+  * Set the BL pin (0 = Backlight Off, 1 = Backlight On).
+  */   
+    virtual void _setBL(bool value);
+    
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial native)
+  * Set the databus value (4 bit).
+  */   
+    virtual void _setData(int value);
+
+/** Low level writes to LCD serial bus only (serial native)
+  */
+    virtual void _writeByte(int value);
+   
+// SPI bus        
+    SPI *_spi;
+    DigitalOut _cs;    
+   
+// controlbyte to select between data and command. Internal value for serial bus only
+    char _controlbyte;   
+
+//Backlight
+    DigitalOut *_bl;    
+};
+#endif /* Native SPI bus     */
+//-------- End TextLCD_SPI_N_3_24 ----------
+
 #endif