[SOLVED] HOW to interface JHD204A 20x4 LCD with PIC microcontroller

[bskumar7080]

Hi all,.
How to interface LCD with PIC microcontroller. what is the functions to be used . i am using JHD204A 20x4 LCD display and PIC18f452.


Thanks & Regards
sivakumar

 

[mvs sarma]

Hi all,.
How to interface LCD with PIC microcontroller. what is the functions to be used . i am using JHD204A 20x4 LCD display and PIC18f452.Thanks & Regardssivakumar

if you want to do under CCS C
please see the link below.
even otherwise , perhaps this software approximately guides you towards your goal.
CCS :: View topic - Crystalfontz 20x4 LCD with PIC18F452

 

[bskumar7080]

The following code is not working, what is wrong in this code, i gave connections as per xlcd.h, i am using c18 libraries

#include <p18f452.h>
#include <xlcd.h>
#include <delays.h>
#include <usart.h>

//**************Configuration Bits******************

#pragma config OSC = HS
#pragma config OSCS = ON
#pragma config PWRT = OFF
#pragma config BOR = OFF
#pragma config WDT = OFF
#pragma config CCP2MUX = OFF
#pragma config STVR = OFF
#pragma config LVP =OFF
#pragma config DEBUG = OFF
#pragma config CP0 = OFF
#pragma config CP1 = OFF
#pragma config CP2 = OFF
#pragma config CP3 = OFF
#pragma config CPB = OFF
#pragma config WRT0 = OFF
#pragma config WRT1 =OFF
#pragma config WRT2 = OFF
#pragma config WRT3 = OFF
#pragma config WRTB = OFF
#pragma config WRTC = OFF
#pragma config WRTD = OFF
#pragma config EBTR0 = OFF
#pragma config EBTR1 = OFF
#pragma config EBTR2 = OFF
#pragma config EBTR3 = OFF
#pragma config EBTRB = OFF

void DelayFor18TCY( void )
{
Nop();
Nop();
Nop();
Nop();
Nop();
Nop();
Nop();
Nop();
Nop();
Nop();
Nop();
Nop();
}
void DelayPORXLCD (void)
{
Delay1KTCYx(60); // Delay of 15ms
// Cycles = (TimeDelay * Fosc) / 4
// Cycles = (15ms * 16MHz) / 4
// Cycles = 60,000
return;
}
void DelayXLCD (void)
{
Delay1KTCYx(20); // Delay of 5ms
// Cycles = (TimeDelay * Fosc) / 4
// Cycles = (5ms * 16MHz) / 4
// Cycles = 20,000
return;
}
void main( void )
{
char data;
// configure external LCD
OpenXLCD( FOUR_BIT & LINES_5X7 );

while(1)
{


WriteDataXLCD('s'); //write to LCD

}

}

 

[bskumar7080]

It is solved, check this thread


https://www.edaboard.com/threads/191413/