My learning thread - thanks everyone

@ romel_emperado
see this basics of SPI
http://microchippiclessons.blogspot.com/2009/06/spi-tutorial.html
and download code on microchip site
http://www.microchipc.com/sourcecode/

It's now working majoka... thanks..

@ romel_emperado
in which compiler u do coding
share ur code

Im using HI-TECH C for PIC18..

#include<htc.h>



unsigned char msb , lsb;
unsigned int x,y;

void spi_init();
unsigned char read_sensor();
void spi_init();

void main()
{
	spi_init();
	TRISD = 0;
	
	while(1)
	{
		read_sensor();
		PORTD = read_sensor();
		for(y=0; y<5000; y++);
	}
	


}

void spi_init()
{
	SMP = 1; //Input data sampled at end of data output time
	CKE = 0; //Transmit occurs on transition from Idle to active clock state
	CKP = 0; //Idle state for clock is a low level
	SSPEN = 1; //Enables serial port and configures SCK, SDO, SDI and SS as serial port pins
	SSPCON1 |= 0b0000; // SPI Master mode, clock = FOSC/4

	TRISCbits.RC7 = 0; //Serial Data Out (SDO)
	TRISBbits.RB0 = 1; //Serial Data In (SDI)
	TRISBbits.RB1 = 0; //Serial Clock (SCK)
	TRISCbits.RC0 = 0; //chip select

}


void spi_send(unsigned char data)
{
	SSPBUF = data;
	while(!BF);

}

unsigned char read_sensor()
{	
	
	char dummy;

	RC0 = 1; // Enable sensor
	spi_send(0x80);
//	dummy = SSPBUF;
	spi_send(0x11);
	RC0 = 0;
//	dummy = SSPBUF;
	for(x=0; x<3000; x++);
	RC0 = 1;
	spi_send(0x02); //Read MSB temperature address
//	dummy = SSPBUF;
	spi_send(0x00); //Read temperature high 
	msb = SSPBUF;
	spi_send(0x00);
	lsb = SSPBUF;
	RC0 = 0;
	return msb;
	
}

@ omel
ru check it in Proteus if yes then on which device u check
is any serial EEPROM ?

yes I check that in protues .. its working.. Im using tc72 temperature sensor

attached the code and the hex file and .sdn file

thank u romel

hi guys.. I have question.. does an AVR controller has a Configuration bits like PIC? I mean watchdog, browout reset and etc?

@ romel_emperado
yes avr has also fuse settings like internal oscillator , watchdog timer and many more