Diff: TextLCD.h

Revision:

0:9e72c57b16fd

Child:

1:18c56f038905

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TextLCD.h	Sat Jan 08 22:24:00 2011 +0000
@@ -0,0 +1,41 @@
+/* mbed TextLCD Library Base Class
+ * Copyright (c) 2007-2009 sford
+ * Released under the MIT License: http://mbed.org/license/mit
+ * Modified by Ned Konz to provide better support for 4-line LCDs and ones with other controller chips.
+ */
+#include "TextDisplay.h"
+
+#ifndef MBED_TEXTLCD_H
+#define MBED_TEXTLCD_H
+
+class TextLCD : public TextDisplay {
+public:
+    TextLCD(PinName rs, PinName rw, PinName e,
+            PinName d0, PinName d1, PinName d2, PinName d3,
+            uint16_t rows = 2, uint16_t columns = 16);
+    virtual void character(uint16_t column, uint16_t row, int c);
+    virtual uint16_t rows() {
+        return _rows;
+    }
+    virtual uint16_t columns() {
+        return _columns;
+    }
+    virtual void reset();
+    virtual void cls();
+
+    // locate, putc, printf come from parent class
+
+protected:
+    void writeByte(uint16_t value);
+    void writeHalfByte(uint16_t value);
+    void writeCommand(uint16_t command);
+    void writeData(uint16_t data);
+    uint16_t readAddressAndBusy();
+    void waitUntilDone();
+
+    DigitalOut _rw, _rs, _e;
+    BusInOut _d;
+    uint16_t _rows, _columns;
+};
+
+#endif