SPI COMMUNICATION Between two PIC (USING CCS)

[Chullaa]

Hi
How can we write code for SPI-SPI communication between two PICS. I have read codes but could not understand. Can i use SPI_Write function.

Here is my schematic.


MASTER

#include "C:\Users\home\Desktop\2PIC_SPI\Code\master\main.h"
void main()
{

   setup_adc_ports(NO_ANALOGS);
   setup_adc(ADC_OFF);
   setup_psp(PSP_DISABLED);
   setup_spi(SPI_MASTER|SPI_L_TO_H|SPI_CLK_DIV_64);
   setup_timer_0(RTCC_INTERNAL|RTCC_DIV_1);
   setup_timer_1(T1_DISABLED);
   setup_timer_2(T2_DISABLED,0,1);
   setup_comparator(NC_NC_NC_NC);
   setup_vref(FALSE);
   TRISD=0;
   PORTD=0;

   // TODO: USER CODE!!
   while(1)
   {
   PORTD=SSPBUF;
   while(!spi_data_is_in());
   }  
   
}

SLAVE

#include "C:\Users\home\Desktop\2PIC_SPI\Code\slave\main.h"

unsigned char value;
void main()
{

   setup_adc_ports(NO_ANALOGS);
   setup_adc(ADC_OFF);
   setup_psp(PSP_DISABLED);
   setup_spi(SPI_SLAVE);
   setup_timer_0(RTCC_INTERNAL|RTCC_DIV_1);
   setup_timer_1(T1_DISABLED);
   setup_timer_2(T2_DISABLED,0,1);
   setup_comparator(NC_NC_NC_NC);
   setup_vref(FALSE);
   TRISD=0x00;
   PORTD=0x00;

   // TODO: USER CODE!!
   while(1)
   SSPBUF='A';
}

 

[Jestin_cubetech]

Master
////////////////////////////////////////////
unsigned int spi_write_hw(unsigned char val)
 {
    unsigned char ctrl;
    SS=0;
    SSPBUF=val;    while(!SSPIF);
    while(!BF);    ctrl=SSPBUF;
    SS=1;
    return ctrl; 
 }

slave
//////////////////////////////////
  void interrupt isr()
{
  if(SSPIF)
 {
   SSPIF=0;
   rcv=SSPBUF;  
   SSPBUF=snd;
 }
}