[SOLVED] problem with PIC18F450_LCD Interface

[Kunal Y. Parikh]

Here is my code...

// Configuration bits
/* _CPUDIV_OSC1_PLL2_1L,  // Divide clock by 2
   _FOSC_HS_1H,           // Select High Speed (HS) oscillator
   _WDT_OFF_2H,           // Watchdog Timer off
   MCLRE_ON_3H            // Master Clear on
*/

//LCD Control pins
#define rs LATA.F0
#define rw LATA.F1
#define en LATA.F2

//LCD Data pins
#define lcdport LATB

void lcd_ini();
void lcdcmd(unsigned char);
void lcddata(unsigned char);
unsigned int i=0;

void main(void)
{
	TRISA=0;		// Configure Port A as output port
	LATA=0;
	TRISB=0;		// Configure Port B as output port
	LATB=0;
	lcd_ini();		// LCD initialization
	lcddata('E');		// Print 'E'
	Delay_ms(1000);
	lcdcmd(0x85);		// Position 1st Line, 6th Column
	lcddata('G');		// Print 'G'

}
void lcd_ini()
{
	lcdcmd(0x38);		// Configure the LCD in 8-bit mode, 2 line and 5x7 font
	lcdcmd(0x0C);		// Display On and Cursor Off
	lcdcmd(0x01);		// Clear display screen
	lcdcmd(0x06);		// Increment cursor
	lcdcmd(0x80);		// Set cursor position to 1st line, 1st column
}

void lcdcmd(unsigned char cmdout)
{
	lcdport=cmdout;		//Send command to lcdport=PORTB
	rs=0;						
	rw=0;
	en=1;
	Delay_ms(10);
	en=0;
}

void lcddata(unsigned char dataout)
{
	lcdport=dataout;	//Send data to lcdport=PORTB
	rs=1;
	rw=0;
	en=1;
	Delay_ms(10);
	en=0;
}

can you please help me..
LCD is not at all reponding.

 

[pic.programmer]

Mention the compiler used. Your delay function and #defines look like mikroC PRO code. If you are using mikroC PRO then it has a LCD library. If you are not using mikroC then mention your compiler. Post your circuit.

 

[Kunal Y. Parikh]

i am using PIC18F4550 Controller with MPLAB IDE, PICKIT3..

Lcd.h is required ?

 

[KYP]

i think,
you have to convert analog port to digital..!!

 

[pic.programmer]

Zip and post your complete MPLAB project files and also mention your Compiler.