Diff: kt_vfd.h

Revision:

1:e1e942d03093

Parent:

0:94347d9bbcf4

--- a/kt_vfd.h	Mon Jul 03 14:14:06 2017 +0000
+++ b/kt_vfd.h	Tue Jul 11 23:41:56 2017 +0000
@@ -1,14 +1,26 @@
 /**
  * @bref VFD class definition
- * for GU140X16G-7040
+ * for GU256X128C-3900
  */
 #ifndef   __MBED_KT_VFD_H_
 #define   __MBED_KT_VFD_H_
 
-enum { // writing mode
-    MD1 = 0x01,
-    MD2,
-    MD3
+enum { // write mode
+    CURRENT = 0x00,
+    ALL     = 0x01
+} ;
+
+enum { // display mode
+    MODE1 = 0x01,   // overwrite
+    MODE2,          // horizontal scroll
+    MODE3           // vertical scroll
+} ;
+
+enum { // font size: 3900 only
+    FONT_SMALL  = 0x01,
+    FONT_MEDIUM = 0x02,
+    FONT_LARGE  = 0x03,
+    FONT_HUGE   = 0x04
 } ;
 
 class KT_VFD : public Stream
@@ -17,17 +29,22 @@
     KT_VFD(PinName rd, PinName wr,
            PinName d0, PinName d1, PinName d2, PinName d3,
            PinName d4, PinName d5, PinName d6, PinName d7) ;
-    void mode(unsigned char mode) ;
+    void write_mode(unsigned char mode) ;
+    void disp_mode(unsigned char mode) ;
+    void scroll_speed(unsigned char n) ;
+    void scroll_act(unsigned int w, unsigned int c, unsigned char s) ;
     void cls() ;
     void locate(unsigned int x, unsigned int y) ;
     void lf() ;
     void cr() ;
+    void font_size(unsigned char m) ; // 3900 only
+    void char_ext(unsigned char x, unsigned char y) ;
 
 protected:
     virtual int _putc(int c) ;
     virtual int _getc() ;
 
-    void writeByte(unsigned char value) ;
+    void write_byte(unsigned char value) ;
 
     DigitalOut _rd, _wr ;
     BusOut _d ;