From 6c72574c1672c7b9cd8af416548e822bbef16889 Mon Sep 17 00:00:00 2001
From: josh <josh@bd8a9e45-a331-0410-811e-c64571078777>
Date: Sun, 3 May 2009 23:34:16 +0000
Subject: [PATCH] Working! Had to insert an extra "enable" phase in
 VFD::sendNibble()

git-svn-id: svn://anubis/misc/parport-2x20vfd@114 bd8a9e45-a331-0410-811e-c64571078777
---
 VFD.cc | 5 +++++
 VFD.h  | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/VFD.cc b/VFD.cc
index b31355c..4dafd2d 100644
--- a/VFD.cc
+++ b/VFD.cc
@@ -89,6 +89,11 @@ void VFD::setPPLines(unsigned char bits)
 
 void VFD::sendNibble(unsigned char rs, unsigned char dat)
 {
+    setPPLines(  (rs << PP_OFFSET_RS)
+               | (E_ENABLE << PP_OFFSET_E)
+               | (RW_WRITE << PP_OFFSET_RW)
+               | ((dat & 0xF) << PP_OFFSET_DATA) );
+    usleep(1);
     setPPLines(  (rs << PP_OFFSET_RS)
                | (E_DISABLE << PP_OFFSET_E)
                | (RW_WRITE << PP_OFFSET_RW)
diff --git a/VFD.h b/VFD.h
index 172a63f..2a0211d 100644
--- a/VFD.h
+++ b/VFD.h
@@ -71,7 +71,7 @@ class VFD
         static const unsigned char PP_OFFSET_RW = 1;
         static const unsigned char PP_OFFSET_E = 2;
         static const unsigned char PP_OFFSET_DATA = 3;
-        static const int INIT_DELAY = 2400;
+        static const int INIT_DELAY = 10000;
 
         void sendByte(unsigned char rs, unsigned char dat);
         void sendNibble(unsigned char rs, unsigned char dat);