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I am able to vary the contrast of LCD, when i fully adjust 2 rows of black squares coming. I increased the delay also. I think problem arises due to some ground connection. I will post the picture of ...

i tried out all the changes said by u people,but again simple black squares are only repeatedly seen.

#include <16F877a.h>
#fuses HS,NOWDT,NOPROTECT,NOBROWNOUT,NOLVP
#use delay( ...

Ok i will do that too and will say the result. I removed the RW connection from D2 and given to ground and i have commented the respective pin define also.

#include <16F877a.h>
#fuses HS,NOWDT,NOPROTECT,NOBROWNOUT,NOLVP
#use delay(clock=20000000)

#include <Flex_lcd.c>

void main()
{
While(1)
...

can anybody confirm that LCD Enable is made high or not in this driver which i copied from code library?

// These pins are for the Microchip PicDem2-Plus board,
// which is what I used to test th ...

i rewired the circuit guessing any voltage drop such that lcd is given 5V directly,i measured the PIC VCC also 5.6V,and LED is glowing which is connected to 34th pin.LCD displays nothing.
I measured ...

i downloaded flex_lcd.c,and made pin changes according to my connection,should i change anything else?

I have one doubt when i measured the VDD voltage of LCD it is about 3.2V,will it drive LCD? ...

OK thank you ,i will try and come.

i have changed my code in this format for ur suggestion,moreover i confirmed that my controller is running by making the LED high.
Even after changing i could not see anything.

#include <16F877 ...

Dear telmah ,

i don't have flex_lcd driver in my compiler,i only have lcd.c,so took this.

I have connected the V0 Pin of LCD to 5K pot .Even by adjusting it i couldn't see anything.
The LCD ia ...

how the LCD connections to be done,if i include LCD.c in CCs compiler for write or display function.

i connected as,

#include <16F877a.h>
#fuses HS,NOWDT,NOPROTECT,NOBROWNOUT,NOLVP ...

Thanks for all your reply.

got the problem solved,

same silly mistake as most of them do, missed HS declaration in fuse instead i put XT for 20 MHz crystal...... Wink

I understand what u people are saying,but the image shows my realtime connection in bread board,moreover the problem is, the controller is not in run mode even after all the connections basically need ...

link below for my connection image.
http://s28.postimg.org/45tnjodot/connection.jpg

I tried to on/off LED for checking my hardware, but 16F877a programming is successful but my LED is off.

#include <16F877A.H>
#fuses XT, NOWDT, NOPROTECT, BROWNOUT, PUT, NOLVP
#use delay ...