Diff: I2CTextLCD.h

Revision:

3:704f87be7993

Parent:

2:1c5dea5d8783

--- a/I2CTextLCD.h	Thu Dec 23 12:42:37 2010 +0000
+++ b/I2CTextLCD.h	Sun Apr 17 17:26:10 2011 +0000
@@ -10,10 +10,49 @@
 #include "mbed.h"
 #include "Stream.h"
 
-#define E_ON  0x10          //P4
-#define BACKLIGHT_ON  0x20  //P5
-#define RS_ON 0x80          //P7
+#define RS_ON         0x10   //P4
+#define E1_ON         0x20   //P5
+#define E2_ON         0x40   //P6
+#define BACKLIGHT_ON  0x80   //P7
+
+/* Display ON/OFF Control defines */
+#define DON                0x0F  //0b00001111  Display on 
+#define DOFF               0x0B  //0b00001011  Display off 
+#define CURSOR_ON          0x0F  //0b00001111  Cursor on 
+#define CURSOR_OFF         OxOD  //0b00001101  Cursor off 
+#define BLINK_ON           0x0F  //0b00001111  Cursor Blink 
+#define BLINK_OFF          0x0E  //0b00001110  Cursor No Blink 
+
+/* Cursor or Display Shift defines */
+#define SHIFT_CUR_LEFT     Ox13  //0b00010011  Cursor shifts to the left 
+#define SHIFT_CUR_RIGHT    Ox17  //0b00010111  Cursor shifts to the right 
+#define SHIFT_DISP_LEFT    Ox1B  //0b00011011  Display shifts to the left 
+#define SHIFT_DISP_RIGHT   0x1F  //0b00011111  Display shifts to the right 
 
+/* Function Set defines */
+#define EIGHT_BITMODE      0x03  //0b00000011  8-bit Interface D4-D7
+#define FOUR_BITMODE       0x02  //0b00000010  4-bit Interface D4-D7
+#define LINE_5X7           0x30  //0b00110000
+#define LINE_5X10          0x34  //0b00110100
+#define LINES_5X7          0x38  //0b00111000
+
+// Addtional define to support display mode
+
+#define DISP_FLIP_NONE     0x00  //0b00111100  No flip
+#define CLEAR_LCD          0x01  //0b00000001 
+
+// Addtional define to support entry mode & shift mode
+//#define ENTRY_CURSOR_DEC 0b00000101 /* Entry cursor move left */
+//#define ENTRY_CURSOR_INC 0b00000111 /* Entry cursor move to right */
+//#define ENTRY_DISPLAY_SHIFT 0b00000111 /* Entry the display to shift */
+//#define ENTRY_DISPLAY_NO_SHIFT 0b00000110 /* Entry no shift */
+
+// Use generic address
+
+#define LINE0 0x80
+#define LINE1 0xC0 
+#define LINE2 0x94 
+#define LINE3 0xD4 
 namespace mbed {
 
 /* Class: I2CTextLCD
@@ -50,10 +89,10 @@
      * P1              -  D5
      * P2              -  D6
      * P3              -  D7
-     * P4              -  E
-     * P5              -  backlight (connected to a relay)
-     * P6              -  nc
-     * P7              -  RS
+     * P4              -  RS
+     * P5              -  E1
+     * P6              -  E2
+     * P7              -  backlight (connected to a relay)
      * gnd             -  R/W
      *
      */