2x16 lcd display using pic16f877

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madusanka

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hello , im new to LCD module,i wrote a C code using mikroC help files,its working PROTEUS but when i make that one it didnt work,, can somebody give me hex code for check the 2x16 LCD display and connections.
Anybody...?:roll:
 

/*
* Project name:
Lcd_Test (Demonstration of the LCD library routines)
* Copyright:
(c) Mikroelektronika, 2008.
* Revision History:
20080930:
- initial release;
* Description:
This code demonstrates how to use LCD 4-bit library. LCD is first
initialized, then some text is written, then the text is moved.
* Test configuration:
MCU: PIC16F887
Dev.Board: EasyPIC5
Oscillator: HS, 08.0000 MHz
Ext. Modules: LCD 2x16
SW: mikroC PRO for PIC
* NOTES:
- Turn on LCD backlight switch (SW9.7) on development board.(board specific)
*/

// LCD module connections
sbit LCD_RS at RB4_bit;
sbit LCD_EN at RB5_bit;
sbit LCD_D4 at RB0_bit;
sbit LCD_D5 at RB1_bit;
sbit LCD_D6 at RB2_bit;
sbit LCD_D7 at RB3_bit;

sbit LCD_RS_Direction at TRISB4_bit;
sbit LCD_EN_Direction at TRISB5_bit;
sbit LCD_D4_Direction at TRISB0_bit;
sbit LCD_D5_Direction at TRISB1_bit;
sbit LCD_D6_Direction at TRISB2_bit;
sbit LCD_D7_Direction at TRISB3_bit;
// End LCD module connections

char txt1[] = "mikroElektronika";
char txt2[] = "EasyPIC5";
char txt3[] = "Lcd4bit";
char txt4[] = "example";

char i; // Loop variable

void Move_Delay() { // Function used for text moving
Delay_ms(500); // You can change the moving speed here
}

void main(){
ANSEL = 0; // Configure AN pins as digital I/O
ANSELH = 0;
C1ON_bit = 0; // Disable comparators
C2ON_bit = 0;

Lcd_Init(); // Initialize LCD

Lcd_Cmd(_LCD_CLEAR); // Clear display
Lcd_Cmd(_LCD_CURSOR_OFF); // Cursor off
Lcd_Out(1,6,txt3); // Write text in first row

Lcd_Out(2,6,txt4); // Write text in second row
Delay_ms(2000);
Lcd_Cmd(_LCD_CLEAR); // Clear display

Lcd_Out(1,1,txt1); // Write text in first row
Lcd_Out(2,5,txt2); // Write text in second row

Delay_ms(2000);

// Moving text
for(i=0; i<4; i++) { // Move text to the right 4 times
Lcd_Cmd(_LCD_SHIFT_RIGHT);
Move_Delay();
}

while(1) { // Endless loop
for(i=0; i<8; i++) { // Move text to the left 7 times
Lcd_Cmd(_LCD_SHIFT_LEFT);
Move_Delay();
}

for(i=0; i<8; i++) { // Move text to the right 7 times
Lcd_Cmd(_LCD_SHIFT_RIGHT);
Move_Delay();
}
}
}
 
hi! in our project we had 20*4 lcd display,we used lcd just to display few characters.our code was also written in microC,i am giving you some part of it below,see if it is helpful to you--
we had written separate display function--


void display(unsigned short cursor,const char *dis)
{
LCD_Cmd(cursor);
while(*dis)
{
LCD_Chr_Cp(*dis++)
}
}


at the beginning of code we had list of whatever we wanted to display on LCD
e.g. const char menu_00[]="WELCOME";


and in main program lines related to lcd were as follows--

void main()
{

LCD_Init(&PORTB); //initialize lcd on portb
LCD_Cmd(LCD_CLEAR); //clear lcd display
display(LCD_second_ROW+7,menu_00); //display WELCOME

}

---------- Post added at 12:26 ---------- Previous post was at 12:18 ----------

we had used PIC 18F4520
 
Hi,
This is a code using mikroC v8.2. I've attached the hex and Proteus DSN file. Try with the hex file (clock = 4MHz) and let us know if it works.
Code:
void main(void){
     LCD_Init(&PORTB);
     LCD_Cmd(Lcd_CLEAR);       // Clear display
     LCD_Cmd(Lcd_CURSOR_OFF);  // Turn cursor off
     LCD_Out(1, 1, "Hello");      // Print text to LCD, 2nd row, 1st column
     while (1);
}

Hope this helps.
Tahmid.
 

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