From f99f21926e515cf93e2af35eb82808f337998738 Mon Sep 17 00:00:00 2001
From: Stanley Huang <stanleyhuangyc@gmail.com>
Date: Mon, 10 Jun 2013 13:21:54 +0800
Subject: update OBD logger
---
obdlogger/LCD4Bit_mod.cpp | 209 ----------------------------------------------
1 file changed, 209 deletions(-)
delete mode 100644 obdlogger/LCD4Bit_mod.cpp
(limited to 'obdlogger/LCD4Bit_mod.cpp')
diff --git a/obdlogger/LCD4Bit_mod.cpp b/obdlogger/LCD4Bit_mod.cpp
deleted file mode 100644
index c100c19..0000000
--- a/obdlogger/LCD4Bit_mod.cpp
+++ /dev/null
@@ -1,209 +0,0 @@
-/*
-LCD4Bit v0.1 16/Oct/2006 neillzero http://abstractplain.net
-
-What is this?
-An arduino library for comms with HD44780-compatible LCD, in 4-bit mode (saves pins)
-
-Sources:
-- The original "LiquidCrystal" 8-bit library and tutorial
- http://www.arduino.cc/en/uploads/Tutorial/LiquidCrystal.zip
- http://www.arduino.cc/en/Tutorial/LCDLibrary
-- DEM 16216 datasheet http://www.maplin.co.uk/Media/PDFs/N27AZ.pdf
-- Massimo's suggested 4-bit code (I took initialization from here) http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1144924220/8
-See also:
-- glasspusher's code (probably more correct): http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1160586800/0#0
-
-Tested only with a DEM 16216 (maplin "N27AZ" - http://www.maplin.co.uk/Search.aspx?criteria=N27AZ)
-If you use this successfully, consider feeding back to the arduino wiki with a note of which LCD it worked on.
-
-Usage:
-see the examples folder of this library distribution.
-
-*/
-
-#if defined(ARDUINO) && ARDUINO >= 100
-#include "Arduino.h"
-#else
-#include "WProgram.h"
-#endif
-
-#include "LCD4Bit_mod.h"
-
-//command bytes for LCD
-#define CMD_CLR 0x01
-#define CMD_RIGHT 0x1C
-#define CMD_LEFT 0x18
-#define CMD_HOME 0x02
-
-//pulse the Enable pin high (for a microsecond).
-//This clocks whatever command or data is in DB4~7 into the LCD controller.
-void LCD4Bit_mod::pulseEnablePin(){
- digitalWrite(Enable,LOW);
- delayMicroseconds(1);
- // send a pulse to enable
- digitalWrite(Enable,HIGH);
- delayMicroseconds(1);
- digitalWrite(Enable,LOW);
- delay(1); // pause 1 ms. TODO: what delay, if any, is necessary here?
-}
-
-//push a nibble of data through the the LCD's DB4~7 pins, clocking with the Enable pin.
-//We don't care what RS and RW are, here.
-void LCD4Bit_mod::pushNibble(byte value)
-{
- byte val_nibble= value & 0x0F; //clean the value. (unnecessary)
-
- for (byte i=DB[0]; i <= DB[3]; i++) {
- digitalWrite(i,val_nibble & 01);
- val_nibble >>= 1;
- }
- pulseEnablePin();
-}
-
-//push a byte of data through the LCD's DB4~7 pins, in two steps, clocking each with the enable pin.
-void LCD4Bit_mod::pushByte(byte value)
-{
- byte val_lower = value & 0x0F;
- byte val_upper = value >> 4;
- pushNibble(val_upper);
- pushNibble(val_lower);
-}
-
-void LCD4Bit_mod::commandWriteNibble(byte nibble)
-{
- digitalWrite(RS, LOW);
- if (USING_RW) { digitalWrite(RW, LOW); }
- pushNibble(nibble);
-}
-
-
-void LCD4Bit_mod::commandWrite(byte value)
-{
- digitalWrite(RS, LOW);
- if (USING_RW) { digitalWrite(RW, LOW); }
- pushByte(value);
- //TODO: perhaps better to add a delay after EVERY command, here. many need a delay, apparently.
-}
-
-
-
-
-//print the given character at the current cursor position. overwrites, doesn't insert.
-void LCD4Bit_mod::write(byte c)
-{
- //set the RS and RW pins to show we're writing data
- digitalWrite(RS, HIGH);
- if (USING_RW) { digitalWrite(RW, LOW); }
-
- //let pushByte worry about the intricacies of Enable, nibble order.
- pushByte(c);
-}
-
-
-//print the given string to the LCD at the current cursor position. overwrites, doesn't insert.
-//While I don't understand why this was named printIn (PRINT IN?) in the original LiquidCrystal library, I've preserved it here to maintain the interchangeability of the two libraries.
-void LCD4Bit_mod::print(const char* msg)
-{
- byte i; //fancy int. avoids compiler warning when comparing i with strlen()'s uint8_t
- byte l = strlen(msg);
- for (i=0; i < l; i++){
- if (msg[i] >= 20) write(msg[i]);
- }
-}
-
-
-//send the clear screen command to the LCD
-void LCD4Bit_mod::clear()
-{
- commandWrite(CMD_CLR);
- delay(1);
-}
-
-
-// initiatize lcd after a short pause
-//while there are hard-coded details here of lines, cursor and blink settings, you can override these original settings after calling .init()
-void LCD4Bit_mod::begin ()
-{
- pinMode(Enable,OUTPUT);
- pinMode(RS,OUTPUT);
- if (USING_RW) { pinMode(RW,OUTPUT); }
- pinMode(DB[0],OUTPUT);
- pinMode(DB[1],OUTPUT);
- pinMode(DB[2],OUTPUT);
- pinMode(DB[3],OUTPUT);
-
- delay(50);
-
- //The first 4 nibbles and timings are not in my DEM16217 SYH datasheet, but apparently are HD44780 standard...
- commandWriteNibble(0x03);
- delay(5);
- commandWriteNibble(0x03);
- delayMicroseconds(100);
- commandWriteNibble(0x03);
- delay(5);
-
- // needed by the LCDs controller
- //this being 2 sets up 4-bit mode.
- commandWriteNibble(0x02);
- commandWriteNibble(0x02);
- //todo: make configurable by the user of this library.
- //NFXX where
- //N = num lines (0=1 line or 1=2 lines).
- //F= format (number of dots (0=5x7 or 1=5x10)).
- //X=don't care
-
- byte num_lines_ptn = (num_lines - 1) << 3;
- byte dot_format_ptn = 0x00; //5x7 dots. 0x04 is 5x10
-
- commandWriteNibble(num_lines_ptn | dot_format_ptn);
- delayMicroseconds(60);
-
- //The rest of the init is not specific to 4-bit mode.
- //NOTE: we're writing full bytes now, not nibbles.
-
- // display control:
- // turn display on, cursor off, no blinking
- commandWrite(0x0C);
- delayMicroseconds(60);
-
- //clear display
- commandWrite(0x01);
- delay(3);
-
- // entry mode set: 06
- // increment automatically, display shift, entire shift off
- commandWrite(0x06);
-
- delay(1);//TODO: remove unnecessary delays
-}
-
-
-//non-core stuff --------------------------------------
-//move the cursor to the given absolute position. line numbers start at 1.
-//if this is not a 2-line LCD4Bit_mod instance, will always position on first line.
-void LCD4Bit_mod::setCursor(byte x, byte line)
-{
- //first, put cursor home
- commandWrite(CMD_HOME);
- //offset 40 chars in if second line requested
- x += line * 40;
-
- //advance the cursor to the right according to position. (second line starts at position 40).
- for (byte i=0; i<x; i++) {
- commandWrite(0x14);
- }
-}
-
-//scroll whole display to left
-void LCD4Bit_mod::leftScroll(byte num_chars, unsigned int delay_time)
-{
- for (byte i=0; i<num_chars; i++) {
- commandWrite(CMD_LEFT);
- delay(delay_time);
- }
-}
-
-//Improvements ------------------------------------------------
-//Remove the unnecessary delays (e.g. from the end of pulseEnablePin()).
-//Allow the user to pass the pins to be used by the LCD in the constructor, and store them as member variables of the class instance.
-//-------------------------------------------------------------
--
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