Diff: TextLCD_4x40/TextLCD_4x40.h

Revision:

0:18d40dac71ff

diff -r 000000000000 -r 18d40dac71ff TextLCD_4x40/TextLCD_4x40.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TextLCD_4x40/TextLCD_4x40.h	Tue May 29 09:30:20 2012 +0000
@@ -0,0 +1,79 @@
+/*Modification de : mbed TextLCD Library, for a 4-bit LCD based on HD44780
+  pour la commande d'un afficheur 4x40
+ */
+
+#ifndef MBED_TEXTLCD_H
+#define MBED_TEXTLCD_H
+
+#include "mbed.h"
+
+/** A TextLCD interface for driving 4-bit HD44780-based LCDs
+ *
+ *
+ * @code
+ * #include "mbed.h"
+ * #include "TextLCD.h"
+ * 
+ * TextLCD lcd(p10, p12, p15, p16, p29, p30); // rs, e, d0-d3
+ * 
+ * int main() {
+ *     lcd.printf("Hello World!\n");
+ * }
+ * @endcode
+ */
+class TextLCD_4x40 : public Stream {
+public:
+
+    /** Create a TextLCD interface
+     *
+     * @param rs    Instruction/data control line
+     * @param e     Enable line (clock)
+     * @param d0-d3 Data lines
+     */
+    TextLCD_4x40(PinName rs, PinName e, PinName d0, PinName d1, PinName d2, PinName d3);
+    
+#if DOXYGEN_ONLY
+    /** Write a character to the LCD
+     *
+     * @param c The character to write to the display
+     */
+    int putc(char c);
+
+    /** Write a formated string to the LCD
+     *
+     * @param format A printf-style format string, followed by the
+     *               variables to use in formating the string.
+     */
+    char printf(const char* format, ...);
+#endif
+
+    /** Locate 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(char column, char row);
+
+    /** Clear the screen and locate to 0,0 */
+    void cls();
+
+protected:
+
+    // Stream implementation functions
+    virtual int _putc(int value);
+    virtual int _getc();
+
+    char address(char column, char row);
+    void character(char column, char row, char c);
+    void writeByte(char value);
+    void writeCommand(char command);
+    void writeData(char data);
+
+    DigitalOut _rs, _e;
+    BusOut _d;
+
+    char _column;
+    char _row;
+};
+
+#endif