![](/media/cache/group/default_image.jpg.50x50_q85.jpg)
Time: 17:33 Date: 10/12/2017 Description: Task 1,7,8 Currently Functioning
Dependencies: BME280 BMP280 TextLCD
Working Repository
Diff: LCD.cpp
- Revision:
- 20:cbb71f84cff9
- Child:
- 47:6d128e500875
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/LCD.cpp Wed Dec 27 21:46:31 2017 +0000 @@ -0,0 +1,47 @@ +#include "mbed.h" //Include the mbed libraries +#include "LCD.hpp" //Include the header file, this acts like a series of forward declarations + +//Constructor +LCD::LCD(PinName E,PinName RS,PinName RW,PinName DB0,PinName DB1,PinName DB2,PinName DB3,PinName DB4,PinName DB5,PinName DB6,PinName DB7) : _E(E),_RS(RS),_RW(RW),_DB0(DB0),_DB1(DB1),_DB2(DB2),_DB3(DB3),_DB4(DB4),_DB5(DB5),_DB6(DB6),_DB7(DB7) +{} + +LCD::~LCD(){} //Destructor + +void LCD::clock_in(){_E = 1; wait(0.001); _E = 0; wait(0.001); _E = 1;} + +void LCD::Function_Set() {_RS = 0; _RW = 0; _DB7 = 0; _DB6 = 0; _DB5 = 1; _DB4 = 1; _DB3 = 1; _DB2 = 1; _DB1 = 0; _DB0 = 0; clock_in();} //DB4 sets Data Width. DB3 sets No. Lines. DB2 sets font. +void LCD::Display_Off() {_RS = 0; _RW = 0; _DB7 = 0; _DB6 = 0; _DB5 = 0; _DB4 = 0; _DB3 = 1; _DB2 = 0; _DB1 = 0; _DB0 = 0; clock_in();} //Turns the display off. +void LCD::Display_Clear() {_RS = 0; _RW = 0; _DB7 = 0; _DB6 = 0; _DB5 = 0; _DB4 = 0; _DB3 = 0; _DB2 = 0; _DB1 = 0; _DB0 = 1; clock_in();} //Clears display sets position to 0. +void LCD::Entry_Mode_Set() {_RS = 0; _RW = 0; _DB7 = 0; _DB6 = 0; _DB5 = 0; _DB4 = 0; _DB3 = 0; _DB2 = 1; _DB1 = 1; _DB0 = 0; clock_in();} //DB1 sets increment(1) vs decrement(0). DB0 sets display shift(1) vs cursor shift(0). +void LCD::Display_On() {_RS = 0; _RW = 0; _DB7 = 0; _DB6 = 0; _DB5 = 0; _DB4 = 0; _DB3 = 1; _DB2 = 1; _DB1 = 1; _DB0 = 1; clock_in();} //DB1 sets cursor on(1) vs off(0). DB0 sets blink(1) vs not(0). + +void LCD::Initialise(){ //Use previous functions to initialise LCD + Function_Set(); wait(0.020); //Function set followed by wait. + Display_Off(); wait(0.020); //Display off followed by wait. + Display_Clear(); wait(0.020); //Display clear followed by wait. + Entry_Mode_Set(); wait(0.020); //Entry Mode Set followed by wait. + Display_On(); wait(0.020); //Turn the display on. + DDRAM_Address(0); wait(0.020); //Set the address to 0. +} + +void LCD::DDRAM_Address(int Address){ //Sets the address to integer address + _RS = 0; + _RW = 0; + _DB7 = 1; + _DB6 = (Address & 0b1000000) >> 6; _DB5 = (Address & 0b0100000) >> 5; _DB4 = (Address & 0b0010000) >> 4; //Use bit shifting to convert integer to binary. + _DB3 = (Address & 0b0001000) >> 3; _DB2 = (Address & 0b0000100) >> 2; _DB1 = (Address & 0b0000010) >> 1; _DB0 = (Address & 0b0000001) >> 0; //Use bit shifting to convert integer to binary. + clock_in(); //Clock the data into the LCD. + } + +void LCD::Write_String(string Word){ //Writes the string Word to the LCD starting at the current address + int ASCII_Converted; //Temporary values + for (int i = 0; i < Word.length(); i++) //For loop running between 0 and length of string Word + { + ASCII_Converted = Word.at(i); //Set ASCII_Converted to current character value + _RS = 1; _RW = 0; //Set RS and RW + _DB7 = (ASCII_Converted & 0b10000000) >> 7; _DB6 = (ASCII_Converted & 0b01000000) >> 6; _DB5 = (ASCII_Converted & 0b00100000) >> 5; _DB4 = (ASCII_Converted & 0b00010000) >> 4; //Use bit shifting to convert hex to binary. + _DB3 = (ASCII_Converted & 0b00001000) >> 3; _DB2 = (ASCII_Converted & 0b00000100) >> 2; _DB1 = (ASCII_Converted & 0b00000010) >> 1; _DB0 = (ASCII_Converted & 0b00000001) >> 0; //Use bit shifting to convert hex to binary. + clock_in(); //Clock the data into the LCD. + } +} + \ No newline at end of file