Diff: character_display/character_display.h

Revision:

0:c0f091562db4

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/character_display/character_display.h	Tue Dec 02 19:58:25 2014 +0000
@@ -0,0 +1,60 @@
+/*
+Copyright 2013 GHI Electronics LLC
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+#pragma once
+#include "mbed.h"
+
+class character_display{
+
+    public:
+
+        character_display(
+             PinName  lcd_rs
+            ,PinName   lcd_e
+            ,PinName   lcd_d4
+            ,PinName   lcd_d5
+            ,PinName   lcd_d6
+            ,PinName   lcd_d7
+        );
+
+        void send_nibble(unsigned char b);
+        void send_byte(unsigned char b);
+        void send_command(unsigned char c);
+        void print(const char* string);
+        void print(char character);
+        void clear();
+        void cursor_home();
+        void set_cursor(unsigned char row, unsigned char col);
+
+    private:
+
+        static const uint8_t DISP_ON = 0xC;    //Turn visible LCD on
+        static const uint8_t CLR_DISP = 1;      //Clear display
+        static const uint8_t CUR_HOME = 2;      //Move cursor home and clear screen memory
+        static const uint8_t SET_CURSOR = 0x80;   //SET_CURSOR + X : Sets cursor position to X
+        static const uint8_t FUNCTION_SET = 0x20; // 001 4 bit bus, 1 line, font 5x7
+        static const uint8_t MODE_SET = 0x06; // mode, direction,...
+        static const uint8_t CUR_V_SHIFT = 0x14; // cursor right 
+        
+        
+        DigitalOut  lcd_rs;
+        DigitalOut  lcd_e;
+        DigitalOut  lcd_d4;
+        DigitalOut  lcd_d5;
+        DigitalOut  lcd_d6;
+        DigitalOut  lcd_d7;
+
+};