jkePOLISAS / Mbed 2 deprecated lcdbasic

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Dependencies:   mbed

lcd.cpp@0:5dbeda619328, 2015-11-13 (annotated)

Committer:
shaizeen
Date:
Fri Nov 13 02:03:19 2015 +0000
Revision:
0:5dbeda619328
lcd custom

Who changed what in which revision?

UserRevisionLine numberNew contents of line
shaizeen 0:5dbeda619328 1 // LCD.cpp File
shaizeen 0:5dbeda619328 2 #include "lcd.h"// Define mbed objects
shaizeen 0:5dbeda619328 3
shaizeen 0:5dbeda619328 4
shaizeen 0:5dbeda619328 5 DigitalOut RS(p26) ;
shaizeen 0:5dbeda619328 6 DigitalOut E(p25) ;
shaizeen 0:5dbeda619328 7 BusOut data(p24, p23, p22, p21) ;
shaizeen 0:5dbeda619328 8
shaizeen 0:5dbeda619328 9 // Toggle enable function
shaizeen 0:5dbeda619328 10 void toggle_enable(void)
shaizeen 0:5dbeda619328 11 { E = 1 ;
shaizeen 0:5dbeda619328 12 wait(0.001) ;
shaizeen 0:5dbeda619328 13 E = 0 ;
shaizeen 0:5dbeda619328 14 wait(0.001) ;
shaizeen 0:5dbeda619328 15 }// Initialise LCD function
shaizeen 0:5dbeda619328 16 void LCD_init(void)
shaizeen 0:5dbeda619328 17 { wait(0.02) ;
shaizeen 0:5dbeda619328 18 RS = 0 ; E = 0 ;
shaizeen 0:5dbeda619328 19
shaizeen 0:5dbeda619328 20 // Function mode
shaizeen 0:5dbeda619328 21 data = 0x2 ;
shaizeen 0:5dbeda619328 22 toggle_enable( ) ;
shaizeen 0:5dbeda619328 23 data = 0x8 ;
shaizeen 0:5dbeda619328 24 toggle_enable( ) ;
shaizeen 0:5dbeda619328 25
shaizeen 0:5dbeda619328 26 // Display mode
shaizeen 0:5dbeda619328 27 data = 0x0 ;
shaizeen 0:5dbeda619328 28 toggle_enable( ) ;
shaizeen 0:5dbeda619328 29 data = 0xF ;
shaizeen 0:5dbeda619328 30 toggle_enable( ) ;
shaizeen 0:5dbeda619328 31
shaizeen 0:5dbeda619328 32 // Clear display
shaizeen 0:5dbeda619328 33 data = 0x0 ;
shaizeen 0:5dbeda619328 34 toggle_enable( ) ;
shaizeen 0:5dbeda619328 35 data = 0x1 ;
shaizeen 0:5dbeda619328 36 toggle_enable( ) ;
shaizeen 0:5dbeda619328 37
shaizeen 0:5dbeda619328 38 }
shaizeen 0:5dbeda619328 39
shaizeen 0:5dbeda619328 40 // Display function
shaizeen 0:5dbeda619328 41 void display_to_LCD(char value )
shaizeen 0:5dbeda619328 42 {
shaizeen 0:5dbeda619328 43 RS = 1;// display character
shaizeen 0:5dbeda619328 44 data = value >> 4 ; // Upper 4
shaizeen 0:5dbeda619328 45 toggle_enable( ) ;
shaizeen 0:5dbeda619328 46 data = value & 0x0F ; // Lower 4
shaizeen 0:5dbeda619328 47 toggle_enable( ) ;
shaizeen 0:5dbeda619328 48
shaizeen 0:5dbeda619328 49 }