8 BIT INPUT WITH PIC 16F874 AND DISPLAY ON LCD

[RAHUL]

how do i take 8 bit parallel input with pic16f874??

I need to display this input as integer on 2*16 hitachi hd44780 LCD

(I used up port C of pic to connect to LCD.)

here is PIC datacheet:http://ww1.microchip.com/downloads/en/devicedoc/30292c.pdf

Kindly help

[PCM programmer]

The program below will read 8 bits of parallel data on Port B,
and display it on the LCD.

[RAHUL]

The code works fine but it shows hex instead of decimal.It shows 0f,ff,0a etc.I want to display"Grain depth:"follwed by interger value.Pls help.

[Mark]

Look up printf in your help file. It show the various format specifiers.

[RAHUL]

#include <16F874.H>
#fuses XT, NOWDT, NOPROTECT, BROWNOUT, PUT, NOLVP
#use delay(clock=4000000)
#use rs232(baud=9600, xmit=PIN_C6, rcv=PIN_C7, ERRORS)

#include <lcd.c>

//=======================
void main()
{
int8 value;
port_b_pullups(TRUE);
lcd_init();
while(1)
{
value = input_b();
printf(lcd_putc, "\f%x", value); --
delay_ms(1000);
}
}
1)HOW DO I ADD MESSAGE BEFORE THIS \f%x?? I ADDED A MESSAGE THE LCD SHOWED IT REPEATEDLY....PLS HELP

2)How do i convert first 7 bits of input to Integer??and use eighth bit as an error bit???

[PCM programmer]

[RAHUL]

\This is what I plan on doing:
0)The LCD should be clear screen then show"Welcome" till it reveives input at D0.(i do not want to display the previous message in PIC memory)
1)I want to START the LCD when the PIC receives a high input(FROM SWITCH) at pin D0.
2)The LCD should display"Measuring...."till it receives 8 bit parallel input.(The problem is the time in which it receives 8 bit input can vary everytime.)



This is the code I have:

While(1)
{lcd_init();
printf(lcd_putc,”WELCOME!!”);

delay_ms(1000);

IF (input(pin_D0))
{

printf(lcd_putc,"Measuring….”);
delay_ms(1000);

value = input_b();

if(value!=00000000)//tried 0 too
{
if(value & 0x80)
{printf(lcd_putc,"ERROR!!");
delay_ms(1000);
}
else
{result = value & 0x7F;
printf(lcd_putc,"\fGrain Depth:\n");
printf(lcd_putc,"%u",result);
delay_ms(1000);
}
}

}
}
The code doesnot work.Kindly guide me.
Waiting for a reply.