#ifndef __SPI_H
#define __SPI_H 	

#include "stm32l1xx.h" 	
#include "stm32l1xx_gpio.h"
#include "stm32l1xx_spi.h"
#include "stm32l1xx_rcc.h"


// SPI总线速度设置 
#define SPI_SPEED_2   		0
#define SPI_SPEED_4   		1
#define SPI_SPEED_8   		2
#define SPI_SPEED_16  		3
#define SPI_SPEED_32 		4
#define SPI_SPEED_64 		5
#define SPI_SPEED_128 		6
#define SPI_SPEED_256 		7

#define u8 uint8_t
#define u16 uint16_t

void SPI2_Port_Init(void);
void SPI2_Init(void);			 //初始化SPI2口
void SPI2_SetSpeed(uint8_t SpeedSet); //设置SPI2速度   
uint8_t SPI2_ReadWriteByte(uint8_t TxData);//SPI2总线读写一个字节
		 

#endif