#ifndef __STM32_SPI_H
#define __STM32_SPI_H

#ifdef __cplusplus
 extern "C" {
#endif

/* Includes ------------------------------------------------------------------*/
#include "stm32f10x.h"
   
#define FLAG_TIMEOUT         ((uint32_t)0x1000)
#define LONG_TIMEOUT         ((uint32_t)(10 *FLAG_TIMEOUT))

#define MAX31865_SPI_PORT 				GPIOA
#define MAX31865_IO_PORT  				GPIOB
				
// define SPI pins				
#define SPI_SCK           				GPIO_Pin_5    /* GPIOA.5*/
#define SPI_MISO          				GPIO_Pin_6    /*GPIOA.6*/
#define SPI_MOSI          				GPIO_Pin_7    /*GPIOA.7*/
#define SPI_CS            				GPIO_Pin_6    /*GPIOB.6*/
#define DRDY_PIN          				GPIO_Pin_5    /*GPIOB.5*/

#define SPI_GPIO_CLK             	RCC_APB2Periph_GPIOA
#define SPI_CS_GPIO_CLK          	RCC_APB2Periph_GPIOB
#define DRDY_GPIO_CLK            	RCC_APB2Periph_GPIOB


#define SPI_CS_HIGH              	GPIO_SetBits(MAX31865_IO_PORT, SPI_CS)
#define SPI_CS_LOW               	GPIO_ResetBits(MAX31865_IO_PORT, SPI_CS)

void  SPI_Inital(void);//MAX31865 硬件spi初始化
uint8_t SPI_Write(uint8_t *buffer, uint8_t nBytes);//SPI写数据
uint8_t SPI_Read(uint8_t *buffer, uint8_t nBytes); //SPI读数据 
uint8_t SPI_WriteByte(uint8_t data);//SPI字节写数据
uint8_t SPI_ReadByte(void);         //SPI字节读数据
void Set_DRDY_Pin_INPUT(void);//MAX31865 DRDY输入IO配置
uint8_t DRDY_Pin_Value(void);//读MAX31865  DRDY_Pin_Value高低电平

#ifdef __cplusplus
}
#endif

#endif