Diff: TextLCD_Serial.h

Revision:

0:bd978ddc0470

Child:

1:7174fd65fd77

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TextLCD_Serial.h	Fri Aug 27 13:01:14 2010 +0000
@@ -0,0 +1,67 @@
+#pragma once
+
+#include "TextDisplay.h"
+
+//! class that implements TextDisplay, for a 2x16 (2x20 to come) serial LCD, controlled by the HD44780
+class TextLCD_Serial : public TextDisplay
+{
+public:
+    //! Constructor
+    TextLCD_Serial(PinName tx, PinName rx, char const * name = NULL);
+    
+    
+    virtual void character(int column, int row, int c);
+    
+    virtual int rows() 
+    {
+        return 2;
+    }
+    virtual int columns()
+    {
+        return 16;
+    }
+    
+
+ 
+    /** Clear the screen and locate to 0,0 */
+    virtual void cls();
+
+
+    
+    
+protected:
+    //! Set the LCD's cursor position
+    void setLCDCursor(int const column, int const row);
+
+    //! write a byte to _lcd
+    void writeByte(int const value);
+    //!Send a command
+    void writeCommand(int const command);
+    //! write a regular char.
+    void writeData(int const data);
+
+    //! Enum with command codes.
+    struct Codes
+    {
+        enum Enum
+        {
+            BackLight   = 0x7C,
+            Command     = 0xFE,
+            Clear       = 0x01,
+            DisplayOn   = 0x0C,
+            DisplayOff  = 0x08,
+            UnderlineCursorOn  = 0x0E,
+            UnderlineCursorOff = 0x0C,
+            BlinkingCursorOn   = 0x0D,
+            BlinkingCursorOff  = 0x0C,
+            CursorLeft  = 0x10,
+            CursorRight = 0x14,
+            ScrollLeft  = 0x18,
+            ScrollRight = 0x1C,
+            
+            Position    = 0x80            
+        };
+    };
+
+    Serial _lcd;
+};