spi.h

spi的i/o茉莉程序

#ifndef _spi_
#define _spi_

#define SI 4
#define SO 3
#define SCLK 5
#define CS 2
#define WP 1

#define PORT1 PORTB
#define PIN1 PINB
#define DDR1 DDRB
#define WP_0 PORT1&=~(1<<WP)
#define WP_1 PORT1|=(1<<WP)
#define CS_0 PORT1&=~(1<<CS)
#define CS_1 PORT1|=(1<<CS)



void Spi_init(void);
void Spi_MT(uint8 data);
uint8 Spi_MR(void);
#endif