Diff: kt_vfd.cpp

Revision:

1:e1e942d03093

Parent:

0:94347d9bbcf4

--- a/kt_vfd.cpp	Mon Jul 03 14:14:06 2017 +0000
+++ b/kt_vfd.cpp	Tue Jul 11 23:41:56 2017 +0000
@@ -1,6 +1,6 @@
 /**
  * @bref VFD class imprementation
- * for GU140X16G-7040
+ * for GU256X128C-3900
  */
 #include "mbed.h"
 #include "kt_vfd.h"
@@ -15,41 +15,89 @@
     _wr = 1 ;
 
     wait_ms(100) ;
-    writeByte(0x1b) ;
-    writeByte(0x40) ;
+    write_byte(0x1b) ;
+    write_byte(0x40) ;
     wait_ms(100) ;
 }
 
-void KT_VFD::mode(unsigned char mode)
+void KT_VFD::write_mode(unsigned char mode)
+{
+    write_byte(0x1f) ;
+    write_byte(0x28) ;
+    write_byte(0x77) ;
+    write_byte(0x10) ;
+    write_byte(mode) ;
+}
+
+void KT_VFD::disp_mode(unsigned char mode)
+{
+    write_byte(0x1f) ;
+    write_byte(mode) ;
+}
+
+void KT_VFD::scroll_speed(unsigned char n)
 {
-    writeByte(0x1f) ;
-    writeByte(mode) ;
+    write_byte(0x1f) ;
+    write_byte(0x73) ;
+    write_byte(n) ; // 0x00 - 0x1f: 
+}
+
+void KT_VFD::scroll_act(unsigned int w, unsigned int c, unsigned char s)
+{
+    write_byte(0x1f) ;
+    write_byte(0x28) ;
+    write_byte(0x61) ;
+    write_byte(0x10) ;
+    write_byte(w%0x100) ;
+    write_byte(w/0x100) ;
+    write_byte(c%0x100) ;
+    write_byte(c/0x100) ;
+    write_byte(s) ;
 }
 
 void KT_VFD::cls()
 {
-    writeByte(0x0C) ;
+    write_byte(0x0C) ;
     locate(0, 0) ;
 }
 
 void KT_VFD::locate(unsigned int x, unsigned int y)
 {
-    writeByte(0x1f) ;
-    writeByte(0x24) ;
-    writeByte(x % 0x100) ; // xL
-    writeByte(x / 0x100) ; // xH
-    writeByte(y % 0x100) ; // yL
-    writeByte(y / 0x100) ; // yH
+    write_byte(0x1f) ;
+    write_byte(0x24) ;
+    write_byte(x % 0x100) ; // xL
+    write_byte(x / 0x100) ; // xH
+    write_byte(y % 0x100) ; // yL
+    write_byte(y / 0x100) ; // yH
 }
 
 void KT_VFD::lf()
 {
-    writeByte(0x0a) ;
+    write_byte(0x0a) ;
 }
 
 void KT_VFD::cr()
 {
-    writeByte(0x0d) ;
+    write_byte(0x0d) ;
+}
+
+void KT_VFD::font_size(unsigned char m)
+{
+    write_byte(0x1f) ;
+    write_byte(0x28) ;
+    write_byte(0x67) ;
+    write_byte(0x01) ;
+    write_byte(m) ;
+}
+
+void KT_VFD::char_ext(unsigned char x, unsigned char y)
+{
+    write_byte(0x1f) ;
+    write_byte(0x28) ;
+    write_byte(0x67) ;
+    write_byte(0x40) ;
+    write_byte(x) ;
+    write_byte(y) ;
 }
 
 int KT_VFD::_putc(int c)
@@ -58,7 +106,7 @@
         cr() ;
         lf() ;
     } else {
-        writeByte(c) ;
+        write_byte(c) ;
     }
     return 0 ;
 }
@@ -68,8 +116,9 @@
     return -1 ;
 }
 
-void KT_VFD::writeByte(unsigned char value)
+void KT_VFD::write_byte(unsigned char value)
 {
+#if 0
     bool ok ;
     _d[7] = 0 ;
     do {
@@ -79,10 +128,14 @@
         _rd = 1 ;
     } while (ok) ;
     _d[7] = 1 ;
+#else
+    while (!_rd) ;
+#endif
 
     _d = value ;
     _wr = 0 ;
     wait_us(0.11) ;
     _wr = 1 ;
-    wait_us(1.6) ;
+//    wait_us(1.6) ;
+    wait_us(16) ;
 }