main.c

AVR的SPI的通信例子

#include <inavr.h>


#include "main.h"
#include "USART.h"
#include "SPI_Slave.h"
int main( void )
{
  unsigned char i=0;
  USART_Init();
  SPIInit();
  PutChar(0x88);
  __enable_interrupt ();
  SPIPutChar(0x11);

  while(1)
  {
    if(SPIGetChar()==0xab)
      SPIPutChar(i++);
    else
      SPIPutChar(0xee);
  }

}