STM32F429 >> 13. SPI 通讯（code）

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=========================== SPI 详细教程在这 ===============================

bsp_spi_flash.h

/**
  ******************************************************************************
  * @file    stm32f4xx_spi.h
  * @author  MCD Application Team
  * @version V1.5.1
  * @date    22-May-2015
  * @brief   This file contains all the functions prototypes for the SPI 
  *          firmware library. 
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT 2015 STMicroelectronics</center></h2>
  *
  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
  * You may not use this file except in compliance with the License.
  * You may obtain a copy of the License at:
  *
  *        http://www.st.com/software_license_agreement_liberty_v2
  *
  * Unless required by applicable law or agreed to in writing, software 
  * distributed under the License is distributed on an "AS IS" BASIS, 
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  *
  ******************************************************************************  
  */ 

/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F4xx_SPI_H
#define __STM32F4xx_SPI_H

#ifdef __cplusplus
 extern "C" {
#endif

/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx.h"

/** @addtogroup STM32F4xx_StdPeriph_Driver
  * @{
  */

/** @addtogroup SPI
  * @{
  */ 

/* Exported types ------------------------------------------------------------*/

/** 
  * @brief  SPI Init structure definition  
  */

typedef struct
{
  uint16_t SPI_Direction;           /*!< Specifies the SPI unidirectional or bidirectional data mode.
                                         This parameter can be a value of @ref SPI_data_direction */

  uint16_t SPI_Mode;                /*!< Specifies the SPI operating mode.
                                         This parameter can be a value of @ref SPI_mode */

  uint16_t SPI_DataSize;            /*!< Specifies the SPI data size.
                                         This parameter can be a value of @ref SPI_data_size */

  uint16_t SPI_CPOL;                /*!< Specifies the serial clock steady state.
                                         This parameter can be a value of @ref SPI_Clock_Polarity */

  uint16_t SPI_CPHA;                /*!< Specifies the clock active edge for the bit capture.
                                         This parameter can be a value of @ref SPI_Clock_Phase */

  uint16_t SPI_NSS;                 /*!< Specifies whether the NSS signal is managed by
                                         hardware (NSS pin) or by software using the SSI bit.
                                         This parameter can be a value of @ref SPI_Slave_Select_management */
 
  uint16_t SPI_BaudRatePrescaler;   /*!< Specifies the Baud Rate prescaler value which will be
                                         used to configure the transmit and receive SCK clock.
                                         This parameter can be a value of @ref SPI_BaudRate_Prescaler
                                         @note The communication clock is derived from the master
                                               clock. The slave clock does not need to be set. */

  uint16_t SPI_FirstBit;            /*!< Specifies whether data transfers start from MSB or LSB bit.
                                         This parameter can be a value of @ref SPI_MSB_LSB_transmission */

  uint16_t SPI_CRCPolynomial;       /*!< Specifies the polynomial used for the CRC calculation. */
}SPI_InitTypeDef;

/** 
  * @brief  I2S Init structure definition  
  */

typedef struct
{

  uint16_t I2S_Mode;         /*!< Specifies the I2S operating mode.
                                  This parameter can be a value of @ref I2S_Mode */

  uint16_t I2S_Standard;     /*!< Specifies the standard used for the I2S communication.
                                  This parameter can be a value of @ref I2S_Standard */

  uint16_t I2S_DataFormat;   /*!< Specifies the data format for the I2S communication.
                                  This parameter can be a value of @ref I2S_Data_Format */

  uint16_t I2S_MCLKOutput;   /*!< Specifies whether the I2S MCLK output is enabled or not.
                                  This parameter can be a value of @ref I2S_MCLK_Output */

  uint32_t I2S_AudioFreq;    /*!< Specifies the frequency selected for the I2S communication.
                                  This parameter can be a value of @ref I2S_Audio_Frequency */

  uint16_t I2S_CPOL;         /*!< Specifies the idle state of the I2S clock.
                                  This parameter can be a value of @ref I2S_Clock_Polarity */
}I2S_InitTypeDef;

/* Exported constants --------------------------------------------------------*/

/** @defgroup SPI_Exported_Constants
  * @{
  */

#define IS_SPI_ALL_PERIPH(PERIPH) (((PERIPH) == SPI1) || \
                                   ((PERIPH) == SPI2) || \
                                   ((PERIPH) == SPI3) || \
                                   ((PERIPH) == SPI4) || \
                                   ((PERIPH) == SPI5) || \
                                   ((PERIPH) == SPI6))

#define IS_SPI_ALL_PERIPH_EXT(PERIPH) (((PERIPH) == SPI1)    || \
                                       ((PERIPH) == SPI2)    || \
                                       ((PERIPH) == SPI3)    || \
                                       ((PERIPH) == SPI4)    || \
                                       ((PERIPH) == SPI5)    || \
                                       ((PERIPH) == SPI6)    || \
                                       ((PERIPH) == I2S2ext) || \
                                       ((PERIPH) == I2S3ext))

#define IS_SPI_23_PERIPH(PERIPH)  (((PERIPH) == SPI2) || \
                                   ((PERIPH) == SPI3))

#define IS_SPI_23_PERIPH_EXT(PERIPH)  (((PERIPH) == SPI2)    || \
                                       ((PERIPH) == SPI3)    || \
                                       ((PERIPH) == I2S2ext) || \
                                       ((PERIPH) == I2S3ext))

#define IS_I2S_EXT_PERIPH(PERIPH)  (((PERIPH) == I2S2ext) || \
                                    ((PERIPH) == I2S3ext))


/** @defgroup SPI_data_direction 
  * @{
  */
  
#define SPI_Direction_2Lines_FullDuplex ((uint16_t)0x0000)
#define SPI_Direction_2Lines_RxOnly     ((uint16_t)0x0400)
#define SPI_Direction_1Line_Rx          ((uint16_t)0x8000)
#define SPI_Direction_1Line_Tx          ((uint16_t)0xC000)
#define IS_SPI_DIRECTION_MODE(MODE) (((MODE) == SPI_Direction_2Lines_FullDuplex) || \
                                     ((MODE) == SPI_Direction_2Lines_RxOnly) || \
                                     ((MODE) == SPI_Direction_1Line_Rx) || \
                                     ((MODE) == SPI_Direction_1Line_Tx))
/**
  * @}
  */

/** @defgroup SPI_mode 
  * @{
  */

#define SPI_Mode_Master                 ((uint16_t)0x0104)
#define SPI_Mode_Slave                  ((uint16_t)0x0000)
#define IS_SPI_MODE(MODE) (((MODE) == SPI_Mode_Master) || \
                           ((MODE) == SPI_Mode_Slave))
/**
  * @}
  */

/** @defgroup SPI_data_size 
  * @{
  */

#define SPI_DataSize_16b                ((uint16_t)0x0800)
#define SPI_DataSize_8b                 ((uint16_t)0x0000)
#define IS_SPI_DATASIZE(DATASIZE) (((DATASIZE) == SPI_DataSize_16b) || \
                                   ((DATASIZE) == SPI_DataSize_8b))
/**
  * @}
  */ 

/** @defgroup SPI_Clock_Polarity 
  * @{
  */

#define SPI_CPOL_Low                    ((uint16_t)0x0000)
#define SPI_CPOL_High                   ((uint16_t)0x0002)
#define IS_SPI_CPOL(CPOL) (((CPOL) == SPI_CPOL_Low) || \
                           ((CPOL) == SPI_CPOL_High))
/**
  * @}
  */

/** @defgroup SPI_Clock_Phase 
  * @{
  */

#define SPI_CPHA_1Edge                  ((uint16_t)0x0000)
#define SPI_CPHA_2Edge                  ((uint16_t)0x0001)
#define IS_SPI_CPHA(CPHA) (((CPHA) == SPI_CPHA_1Edge) || \
                           ((CPHA) == SPI_CPHA_2Edge))
/**
  * @}
  */

/** @defgroup SPI_Slave_Select_management 
  * @{
  */

#define SPI_NSS_Soft                    ((uint16_t)0x0200)
#define SPI_NSS_Hard                    ((uint16_t)0x0000)
#define IS_SPI_NSS(NSS) (((NSS) == SPI_NSS_Soft) || \
                         ((NSS) == SPI_NSS_Hard))
/**
  * @}
  */ 

/** @defgroup SPI_BaudRate_Prescaler 
  * @{
  */

#define SPI_BaudRatePrescaler_2         ((uint16_t)0x0000)
#define SPI_BaudRatePrescaler_4         ((uint16_t)0x0008)
#define SPI_BaudRatePrescaler_8         ((uint16_t)0x0010)
#define SPI_BaudRatePrescaler_16        ((uint16_t)0x0018)
#define SPI_BaudRatePrescaler_32        ((uint16_t)0x0020)
#define SPI_BaudRatePrescaler_64        ((uint16_t)0x0028)
#define SPI_BaudRatePrescaler_128       ((uint16_t)0x0030)
#define SPI_BaudRatePrescaler_256       ((uint16_t)0x0038)
#define IS_SPI_BAUDRATE_PRESCALER(PRESCALER) (((PRESCALER) == SPI_BaudRatePrescaler_2) || \
                                              ((PRESCALER) == SPI_BaudRatePrescaler_4) || \
                                              ((PRESCALER) == SPI_BaudRatePrescaler_8) || \
                                              ((PRESCALER) == SPI_BaudRatePrescaler_16) || \
                                              ((PRESCALER) == SPI_BaudRatePrescaler_32) || \
                                              ((PRESCALER) == SPI_BaudRatePrescaler_64) || \
                                              ((PRESCALER) == SPI_BaudRatePrescaler_128) || \
                                              ((PRESCALER) == SPI_BaudRatePrescaler_256))
/**
  * @}
  */ 

/** @defgroup SPI_MSB_LSB_transmission 
  * @{
  */

#define SPI_FirstBit_MSB                ((uint16_t)0x0000)
#define SPI_FirstBit_LSB                ((uint16_t)0x0080)
#define IS_SPI_FIRST_BIT(BIT) (((BIT) == SPI_FirstBit_MSB) || \
                               ((BIT) == SPI_FirstBit_LSB))
/**
  * @}
  */

/** @defgroup SPI_I2S_Mode 
  * @{
  */

#define I2S_Mode_SlaveTx                ((uint16_t)0x0000)
#define I2S_Mode_SlaveRx                ((uint16_t)0x0100)
#define I2S_Mode_MasterTx               ((uint16_t)0x0200)
#define I2S_Mode_MasterRx               ((uint16_t)0x0300)
#define IS_I2S_MODE(MODE) (((MODE) == I2S_Mode_SlaveTx) || \
                           ((MODE) == I2S_Mode_SlaveRx) || \
                           ((MODE) == I2S_Mode_MasterTx)|| \
                           ((MODE) == I2S_Mode_MasterRx))
/**
  * @}
  */
  

/** @defgroup SPI_I2S_Standard 
  * @{
  */

#define I2S_Standard_Phillips           ((uint16_t)0x0000)
#define I2S_Standard_MSB                ((uint16_t)0x0010)
#define I2S_Standard_LSB                ((uint16_t)0x0020)
#define I2S_Standard_PCMShort           ((uint16_t)0x0030)
#define I2S_Standard_PCMLong            ((uint16_t)0x00B0)
#define IS_I2S_STANDARD(STANDARD) (((STANDARD) == I2S_Standard_Phillips) || \
                                   ((STANDARD) == I2S_Standard_MSB) || \
                                   ((STANDARD) == I2S_Standard_LSB) || \
                                   ((STANDARD) == I2S_Standard_PCMShort) || \
                                   ((STANDARD) == I2S_Standard_PCMLong))
/**
  * @}
  */
  
/** @defgroup SPI_I2S_Data_Format 
  * @{
  */

#define I2S_DataFormat_16b              ((uint16_t)0x0000)
#define I2S_DataFormat_16bextended      ((uint16_t)0x0001)
#define I2S_DataFormat_24b              ((uint16_t)0x0003)
#define I2S_DataFormat_32b              ((uint16_t)0x0005)
#define IS_I2S_DATA_FORMAT(FORMAT) (((FORMAT) == I2S_DataFormat_16b) || \
                                    ((FORMAT) == I2S_DataFormat_16bextended) || \
                                    ((FORMAT) == I2S_DataFormat_24b) || \
                                    ((FORMAT) == I2S_DataFormat_32b))
/**
  * @}
  */

/** @defgroup SPI_I2S_MCLK_Output 
  * @{
  */

#define I2S_MCLKOutput_Enable           ((uint16_t)0x0200)
#define I2S_MCLKOutput_Disable          ((uint16_t)0x0000)
#define IS_I2S_MCLK_OUTPUT(OUTPUT) (((OUTPUT) == I2S_MCLKOutput_Enable) || \
                                    ((OUTPUT) == I2S_MCLKOutput_Disable))
/**
  * @}
  */

/** @defgroup SPI_I2S_Audio_Frequency 
  * @{
  */

#define I2S_AudioFreq_192k               ((uint32_t)192000)
#define I2S_AudioFreq_96k                ((uint32_t)96000)
#define I2S_AudioFreq_48k                ((uint32_t)48000)
#define I2S_AudioFreq_44k                ((uint32_t)44100)
#define I2S_AudioFreq_32k                ((uint32_t)32000)
#define I2S_AudioFreq_22k                ((uint32_t)22050)
#define I2S_AudioFreq_16k                ((uint32_t)16000)
#define I2S_AudioFreq_11k                ((uint32_t)11025)
#define I2S_AudioFreq_8k                 ((uint32_t)8000)
#define I2S_AudioFreq_Default            ((uint32_t)2)

#define IS_I2S_AUDIO_FREQ(FREQ) ((((FREQ) >= I2S_AudioFreq_8k) && \
                                 ((FREQ) <= I2S_AudioFreq_192k)) || \
                                 ((FREQ) == I2S_AudioFreq_Default))
/**
  * @}
  */
            
/** @defgroup SPI_I2S_Clock_Polarity 
  * @{
  */

#define I2S_CPOL_Low                    ((uint16_t)0x0000)
#define I2S_CPOL_High                   ((uint16_t)0x0008)
#define IS_I2S_CPOL(CPOL) (((CPOL) == I2S_CPOL_Low) || \
                           ((CPOL) == I2S_CPOL_High))
/**
  * @}
  */

/** @defgroup SPI_I2S_DMA_transfer_requests 
  * @{
  */

#define SPI_I2S_DMAReq_Tx               ((uint16_t)0x0002)
#define SPI_I2S_DMAReq_Rx               ((uint16_t)0x0001)
#define IS_SPI_I2S_DMAREQ(DMAREQ) ((((DMAREQ) & (uint16_t)0xFFFC) == 0x00) && ((DMAREQ) != 0x00))
/**
  * @}
  */

/** @defgroup SPI_NSS_internal_software_management 
  * @{
  */

#define SPI_NSSInternalSoft_Set         ((uint16_t)0x0100)
#define SPI_NSSInternalSoft_Reset       ((uint16_t)0xFEFF)
#define IS_SPI_NSS_INTERNAL(INTERNAL) (((INTERNAL) == SPI_NSSInternalSoft_Set) || \
                                       ((INTERNAL) == SPI_NSSInternalSoft_Reset))
/**
  * @}
  */

/** @defgroup SPI_CRC_Transmit_Receive 
  * @{
  */

#define SPI_CRC_Tx                      ((uint8_t)0x00)
#define SPI_CRC_Rx                      ((uint8_t)0x01)
#define IS_SPI_CRC(CRC) (((CRC) == SPI_CRC_Tx) || ((CRC) == SPI_CRC_Rx))
/**
  * @}
  */

/** @defgroup SPI_direction_transmit_receive 
  * @{
  */

#define SPI_Direction_Rx                ((uint16_t)0xBFFF)
#define SPI_Direction_Tx                ((uint16_t)0x4000)
#define IS_SPI_DIRECTION(DIRECTION) (((DIRECTION) == SPI_Direction_Rx) || \
                                     ((DIRECTION) == SPI_Direction_Tx))
/**
  * @}
  */

/** @defgroup SPI_I2S_interrupts_definition 
  * @{
  */

#define SPI_I2S_IT_TXE                  ((uint8_t)0x71)
#define SPI_I2S_IT_RXNE                 ((uint8_t)0x60)
#define SPI_I2S_IT_ERR                  ((uint8_t)0x50)
#define I2S_IT_UDR                      ((uint8_t)0x53)
#define SPI_I2S_IT_TIFRFE               ((uint8_t)0x58)

#define IS_SPI_I2S_CONFIG_IT(IT) (((IT) == SPI_I2S_IT_TXE) || \
                                  ((IT) == SPI_I2S_IT_RXNE) || \
                                  ((IT) == SPI_I2S_IT_ERR))

#define SPI_I2S_IT_OVR                  ((uint8_t)0x56)
#define SPI_IT_MODF                     ((uint8_t)0x55)
#define SPI_IT_CRCERR                   ((uint8_t)0x54)

#define IS_SPI_I2S_CLEAR_IT(IT) (((IT) == SPI_IT_CRCERR))

#define IS_SPI_I2S_GET_IT(IT) (((IT) == SPI_I2S_IT_RXNE)|| ((IT) == SPI_I2S_IT_TXE) || \
                               ((IT) == SPI_IT_CRCERR)  || ((IT) == SPI_IT_MODF) || \
                               ((IT) == SPI_I2S_IT_OVR) || ((IT) == I2S_IT_UDR) ||\
                               ((IT) == SPI_I2S_IT_TIFRFE))
/**
  * @}
  */

/** @defgroup SPI_I2S_flags_definition 
  * @{
  */

#define SPI_I2S_FLAG_RXNE               ((uint16_t)0x0001)
#define SPI_I2S_FLAG_TXE                ((uint16_t)0x0002)
#define I2S_FLAG_CHSIDE                 ((uint16_t)0x0004)
#define I2S_FLAG_UDR                    ((uint16_t)0x0008)
#define SPI_FLAG_CRCERR                 ((uint16_t)0x0010)
#define SPI_FLAG_MODF                   ((uint16_t)0x0020)
#define SPI_I2S_FLAG_OVR                ((uint16_t)0x0040)
#define SPI_I2S_FLAG_BSY                ((uint16_t)0x0080)
#define SPI_I2S_FLAG_TIFRFE             ((uint16_t)0x0100)

#define IS_SPI_I2S_CLEAR_FLAG(FLAG) (((FLAG) == SPI_FLAG_CRCERR))
#define IS_SPI_I2S_GET_FLAG(FLAG) (((FLAG) == SPI_I2S_FLAG_BSY) || ((FLAG) == SPI_I2S_FLAG_OVR) || \
                                   ((FLAG) == SPI_FLAG_MODF) || ((FLAG) == SPI_FLAG_CRCERR) || \
                                   ((FLAG) == I2S_FLAG_UDR) || ((FLAG) == I2S_FLAG_CHSIDE) || \
                                   ((FLAG) == SPI_I2S_FLAG_TXE) || ((FLAG) == SPI_I2S_FLAG_RXNE)|| \
                                   ((FLAG) == SPI_I2S_FLAG_TIFRFE))
/**
  * @}
  */

/** @defgroup SPI_CRC_polynomial 
  * @{
  */

#define IS_SPI_CRC_POLYNOMIAL(POLYNOMIAL) ((POLYNOMIAL) >= 0x1)
/**
  * @}
  */

/** @defgroup SPI_I2S_Legacy 
  * @{
  */

#define SPI_DMAReq_Tx                SPI_I2S_DMAReq_Tx
#define SPI_DMAReq_Rx                SPI_I2S_DMAReq_Rx
#define SPI_IT_TXE                   SPI_I2S_IT_TXE
#define SPI_IT_RXNE                  SPI_I2S_IT_RXNE
#define SPI_IT_ERR                   SPI_I2S_IT_ERR
#define SPI_IT_OVR                   SPI_I2S_IT_OVR
#define SPI_FLAG_RXNE                SPI_I2S_FLAG_RXNE
#define SPI_FLAG_TXE                 SPI_I2S_FLAG_TXE
#define SPI_FLAG_OVR                 SPI_I2S_FLAG_OVR
#define SPI_FLAG_BSY                 SPI_I2S_FLAG_BSY
#define SPI_DeInit                   SPI_I2S_DeInit
#define SPI_ITConfig                 SPI_I2S_ITConfig
#define SPI_DMACmd                   SPI_I2S_DMACmd
#define SPI_SendData                 SPI_I2S_SendData
#define SPI_ReceiveData              SPI_I2S_ReceiveData
#define SPI_GetFlagStatus            SPI_I2S_GetFlagStatus
#define SPI_ClearFlag                SPI_I2S_ClearFlag
#define SPI_GetITStatus              SPI_I2S_GetITStatus
#define SPI_ClearITPendingBit        SPI_I2S_ClearITPendingBit
/**
  * @}
  */
  
/**
  * @}
  */

/* Exported macro ------------------------------------------------------------*/
/* Exported functions --------------------------------------------------------*/ 

/*  Function used to set the SPI configuration to the default reset state *****/ 
void SPI_I2S_DeInit(SPI_TypeDef* SPIx);

/* Initialization and Configuration functions *********************************/
void SPI_Init(SPI_TypeDef* SPIx, SPI_InitTypeDef* SPI_InitStruct);
void I2S_Init(SPI_TypeDef* SPIx, I2S_InitTypeDef* I2S_InitStruct);
void SPI_StructInit(SPI_InitTypeDef* SPI_InitStruct);
void I2S_StructInit(I2S_InitTypeDef* I2S_InitStruct);
void SPI_Cmd(SPI_TypeDef* SPIx, FunctionalState NewState);
void I2S_Cmd(SPI_TypeDef* SPIx, FunctionalState NewState);
void SPI_DataSizeConfig(SPI_TypeDef* SPIx, uint16_t SPI_DataSize);
void SPI_BiDirectionalLineConfig(SPI_TypeDef* SPIx, uint16_t SPI_Direction);
void SPI_NSSInternalSoftwareConfig(SPI_TypeDef* SPIx, uint16_t SPI_NSSInternalSoft);
void SPI_SSOutputCmd(SPI_TypeDef* SPIx, FunctionalState NewState);
void SPI_TIModeCmd(SPI_TypeDef* SPIx, FunctionalState NewState);

void I2S_FullDuplexConfig(SPI_TypeDef* I2Sxext, I2S_InitTypeDef* I2S_InitStruct);

/* Data transfers functions ***************************************************/ 
void SPI_I2S_SendData(SPI_TypeDef* SPIx, uint16_t Data);
uint16_t SPI_I2S_ReceiveData(SPI_TypeDef* SPIx);

/* Hardware CRC Calculation functions *****************************************/
void SPI_CalculateCRC(SPI_TypeDef* SPIx, FunctionalState NewState);
void SPI_TransmitCRC(SPI_TypeDef* SPIx);
uint16_t SPI_GetCRC(SPI_TypeDef* SPIx, uint8_t SPI_CRC);
uint16_t SPI_GetCRCPolynomial(SPI_TypeDef* SPIx);

/* DMA transfers management functions *****************************************/
void SPI_I2S_DMACmd(SPI_TypeDef* SPIx, uint16_t SPI_I2S_DMAReq, FunctionalState NewState);

/* Interrupts and flags management functions **********************************/
void SPI_I2S_ITConfig(SPI_TypeDef* SPIx, uint8_t SPI_I2S_IT, FunctionalState NewState);
FlagStatus SPI_I2S_GetFlagStatus(SPI_TypeDef* SPIx, uint16_t SPI_I2S_FLAG);
void SPI_I2S_ClearFlag(SPI_TypeDef* SPIx, uint16_t SPI_I2S_FLAG);
ITStatus SPI_I2S_GetITStatus(SPI_TypeDef* SPIx, uint8_t SPI_I2S_IT);
void SPI_I2S_ClearITPendingBit(SPI_TypeDef* SPIx, uint8_t SPI_I2S_IT);

#ifdef __cplusplus
}
#endif

#endif /*__STM32F4xx_SPI_H */

/**
  * @}
  */

/**
  * @}
  */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

bsp_spi_flash.c

/**
  ******************************************************************************
  * @file    bsp_spi_flash.c
  * @author  Waao
  * @version V1.0.0
  * @date    19-Jan-2019
  * @brief   This file contains some board support package's functions for the SPI.
  *            
  ******************************************************************************
  * @attention
  *
  * None
	*
  ******************************************************************************
  */

#include <bsp_spi_flash.h>


static __IO uint32_t SPITimeout = SPIT_LONG_TIMEOUT;
static uint32_t WAITING_TIME = SPIT_FLAG_TIMEOUT;

/**
  * @brief  Initialize the SPI_GPIO.
  * @param  None  
  * @retval None
  */
void SPI_GPIO_Config(void)
{
	GPIO_InitTypeDef GPIO_InitStructure;
	
	RCC_AHB1PeriphClockCmd(SPI_GPIO_CLK, ENABLE);
	
	GPIO_PinAFConfig(SPI_SCK_GPIO_PORT, SPI_SCK_GPIO_PinSource, SPI_SCK_GPIO_AF);
	GPIO_PinAFConfig(SPI_MISO_GPIO_PORT, SPI_MISO_GPIO_PinSource, SPI_MISO_GPIO_AF);
	GPIO_PinAFConfig(SPI_MOSI_GPIO_PORT, SPI_MOSI_GPIO_PinSource, SPI_MOSI_GPIO_AF);
	
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
	GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
	GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
	
	//SCK
	GPIO_InitStructure.GPIO_Pin = SPI_SCK_GPIO_PIN;
	GPIO_Init(SPI_SCK_GPIO_PORT, &GPIO_InitStructure);
	
	//MISO
	GPIO_InitStructure.GPIO_Pin = SPI_MISO_GPIO_PIN;
	GPIO_Init(SPI_MISO_GPIO_PORT, &GPIO_InitStructure);
	
	//MOSI
	GPIO_InitStructure.GPIO_Pin = SPI_MOSI_GPIO_PIN;
	GPIO_Init(SPI_MOSI_GPIO_PORT, &GPIO_InitStructure);
	
	//NSS
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
	GPIO_InitStructure.GPIO_Pin = SPI_NSS_GPIO_PIN;
	GPIO_Init(SPI_NSS_GPIO_PORT, &GPIO_InitStructure);
	
	SPI_FLASH_CS_1;
}


/**
  * @brief  Initialize the SPI.
  * @param  None  
  * @retval None
  */
void SPI_Config(void)
{
	SPI_InitTypeDef SPI_InitStructure;
	
	SPI_GPIO_Config();
	
	RCC_APB2PeriphClockCmd(SPI_CLK, ENABLE);
	
	SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
	SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
	SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
	SPI_InitStructure.SPI_CPOL = SPI_CPOL_High;
	SPI_InitStructure.SPI_CPHA = SPI_CPHA_2Edge;
	SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
	SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_2;
	SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
	//Since we not use the CRC verify mode, so this CRCPolynomial is invalid
	SPI_InitStructure.SPI_CRCPolynomial = 7;
	
	SPI_Init(SPI_, &SPI_InitStructure);
	SPI_Cmd(SPI_, ENABLE);
}


/**
  * @brief  Send a byte of data.
	* @param  byte: The data you want to transmit  
  * @retval The data have been received from flash.
  */
u8 SPI_FLASH_SendByte(u8 byte)
{
	//Waiting the transmit register to be empty
	WAITING_TIME = SPIT_FLAG_TIMEOUT;
	while(!SPI_I2S_GetFlagStatus(SPI_, SPI_I2S_FLAG_TXE))
	{
		if((WAITING_TIME--) == 0)
		{
			printf("timeout");
			return SPI_TIMEOUT_Callback(0);
		}
	}
	
	SPI_I2S_SendData(SPI_, byte);
	
	//Waiting the receive register to be not empty
	WAITING_TIME = SPIT_FLAG_TIMEOUT;
	while(!SPI_I2S_GetFlagStatus(SPI_, SPI_I2S_FLAG_RXNE))
	{
		
		if((WAITING_TIME--) == 0)
		{
			printf("timeout");
			return SPI_TIMEOUT_Callback(1);
		}
	}
	
	return SPI_I2S_ReceiveData(SPI_);
}


/**
  * @brief  Receive a byte of data.
	* @param  Since the process of receiving and sending is synchronous, So we must
	*  				sending a byte of data if we want to read data from flash, the send data is random.
  * @retval The data have been received from flash.
  */
u8 SPI_FLASH_ReadByte(void)
{
	return (SPI_FLASH_SendByte(Dummy_Byte));
}


/**
  * @brief  Read the flash's ID
	* @param  None 
	* @retval temp: The ID of the FLASH
  */
u32 SPI_FLASH_ReadID(void)
{
	u32 temp = 0, temp_1 = 0, temp_2 = 0, temp_3 = 0;
	
	SPI_FLASH_CS_0;
	
	SPI_FLASH_SendByte(W25X_JedecDeviceID);
	
	temp_1 = SPI_FLASH_ReadByte();
	temp_2 = SPI_FLASH_ReadByte();
	temp_3 = SPI_FLASH_ReadByte();
	
	SPI_FLASH_CS_1;
	
	temp = (temp_1 << 16) | (temp_2 << 8) | temp_3;
	
	return temp;
}


/**
  * @brief  Read the flash device's ID
	* @param  None 
	* @retval temp: The ID of the FLASH device
  */
u32 SPI_FLASH_ReadDeviceID(void)
{
  u32 Temp = 0;

  /* Select the FLASH: Chip Select low */
  SPI_FLASH_CS_0;

  /* Send "RDID " instruction */
  SPI_FLASH_SendByte(W25X_DeviceID);
  SPI_FLASH_SendByte(Dummy_Byte);
  SPI_FLASH_SendByte(Dummy_Byte);
  SPI_FLASH_SendByte(Dummy_Byte);
  
  /* Read a byte from the FLASH */
  Temp = SPI_FLASH_SendByte(Dummy_Byte);

  /* Deselect the FLASH: Chip Select high */
  SPI_FLASH_CS_1;

  return Temp;
}


/**
  * @brief  Write enable
	* @param  None
	* @retval None
  */
void SPI_FLASH_WriteEnable(void)
{
	SPI_FLASH_CS_0;
	
	SPI_FLASH_SendByte(W25X_WriteEnable);
	
	SPI_FLASH_CS_1;
}


/**
  * @brief  Wait for the FLASH idle
	* @param  None
	* @retval 0: Succeed
	*					1: False
  */
u8 SPI_FLASH_WaitForWriteEnd(void)
{
	u8 FLASH_Status = 0;
	
	SPI_FLASH_CS_0;
	
	SPI_FLASH_SendByte(W25X_ReadStatusReg);
	
	// There is better to be SPIT_LONG_TIMEOUT rather than SPIT_FLAG_TIMEOUT, or it will make a mistake
	SPITimeout = SPIT_LONG_TIMEOUT;
	
	do
	{
		FLASH_Status = SPI_FLASH_SendByte(Dummy_Byte);//SPI_FLASH_ReadByte();
		
		if((SPITimeout--) == 0)
		{
			SPI_TIMEOUT_Callback(2);
			return 1;
		}
	}
	while((FLASH_Status & WIP_Flag) == SET);
	
	SPI_FLASH_CS_1;
	return 0;
}


/**
  * @brief  Erase the sector that you specified
	* @param  SectorAddr: The address of the buffer that you want to erase
	* @retval None
  */
void SPI_FLASH_SectorErase(u32 SectorAddr)
{
	SPI_FLASH_WriteEnable();
	
  SPI_FLASH_WaitForWriteEnd();
	
	SPI_FLASH_CS_0;
	SPI_FLASH_SendByte(W25X_SectorErase);
	SPI_FLASH_SendByte((SectorAddr & 0xFF0000) >> 16);
	SPI_FLASH_SendByte((SectorAddr & 0xFF00) >> 18);
	SPI_FLASH_SendByte(SectorAddr & 0xFF);
	
	SPI_FLASH_CS_1;
	
  SPI_FLASH_WaitForWriteEnd();
}


/**
  * @brief  Write a page of data
	* @param  pBuffer: The pointer point to our data
	*					WriteAddr: The place that we want to restore the data
	*					NumByteToWrite: The number of bytes that we want to write
	* @retval None
  */
void SPI_FLASH_PageWrite(u8 *pBuffer, u32 WriteAddr, u16 NumByteToWrite)
{
	SPI_FLASH_WriteEnable();
	
	SPI_FLASH_CS_0;
	
	SPI_FLASH_SendByte(W25X_PageProgram);
	SPI_FLASH_SendByte((WriteAddr & 0xFF0000) >> 16);
	SPI_FLASH_SendByte((WriteAddr & 0xFF00) >> 18);
	SPI_FLASH_SendByte(WriteAddr & 0xFF);
	
	if(NumByteToWrite > SPI_FLASH_PerWritePageSize)
	{
		NumByteToWrite = SPI_FLASH_PerWritePageSize;
		FLASH_ERROR("SPI_FLASH_PageWrite too large!");
	}
	
	while(NumByteToWrite--)
	{
		SPI_FLASH_SendByte(*pBuffer);
		pBuffer++;
	}
	
	SPI_FLASH_CS_1;
	
  SPI_FLASH_WaitForWriteEnd();
}



/**
  * @brief  Write a buffer of data
	* @param  pBuffer: The pointer point to our data
	*					WriteAddr: The place that we want to restore the data
	*					NumByteToWrite: The number of bytes that we want to write
	* @retval None
  */
void SPI_FLASH_BufferWrite(u8 *pBuffer, u32 WriteAddr, u16 NumByteToWrite)
{
	//The Addr_Surplus_page is the difference value that WriteAddr reach a page
	u32 Addr_Surplus_page = WriteAddr - (WriteAddr % SPI_FLASH_PageSize);
	//The Byte_Numpage is the integer of WriteAddr devided by SPI_FLASH_PageSize
	u32 Byte_Numpage = (NumByteToWrite - Addr_Surplus_page) / SPI_FLASH_PageSize;
	//The Byte_Remainder is the remainder of WriteAddr devided by SPI_FLASH_PageSize
	u32 Byte_Remainder = (NumByteToWrite - Addr_Surplus_page) % SPI_FLASH_PageSize;
	
	u32 i = 0;

	SPI_FLASH_SendByte(W25X_PageProgram);
	SPI_FLASH_SendByte((WriteAddr & 0xFF0000) >> 16);
	SPI_FLASH_SendByte((WriteAddr & 0xFF00) >> 18);
	SPI_FLASH_SendByte(WriteAddr & 0xFF);
	
	/* First we consider the situation of the Addr_Surplus_page is not equal with WriteAddr, the mean is that 
	 * the WriteAddr isn't reach the integer times of SPI_FLASH_PageSize.
	 */
	if(Addr_Surplus_page != WriteAddr)
	{
		// We should fill the first page
		SPI_FLASH_PageWrite(pBuffer, WriteAddr, Addr_Surplus_page);
		pBuffer += Addr_Surplus_page;
		WriteAddr += Addr_Surplus_page;
		// Then we consider the situation of the number of bytes of data is more than one page after it fill the first page.
		if(Byte_Numpage > 0)
		{
			while(Byte_Numpage--)
			{
				SPI_FLASH_PageWrite(pBuffer, WriteAddr, SPI_FLASH_PageSize);
				pBuffer += SPI_FLASH_PageSize;
				WriteAddr += SPI_FLASH_PageSize;
			}
			// And we consider the situation of the data can't reach a new page after it fill the ahead page.
			if(Byte_Remainder > 0)
			{
				while(Byte_Remainder--)
				{
					SPI_FLASH_PageWrite(pBuffer, WriteAddr, Byte_Remainder);
					pBuffer += Byte_Remainder;
					WriteAddr += Byte_Remainder;
				}
			}
		}
		// Or the situation is the data can't reach a new page after it fill the first page.
		if(Byte_Numpage == 0 && Byte_Remainder > 0)
		{	
			for(i=0; i<Byte_Remainder; i++)
			{
				SPI_FLASH_PageWrite(pBuffer, WriteAddr, Byte_Remainder);
				pBuffer += Byte_Remainder;
				WriteAddr += Byte_Remainder;
			}
		}
		
	}
	/* Another situation is the WriteAddr is just the integer times of the SPI_FLASH_PageSize, the mean is
	 * that we can write the data from a new page directly.
	 */
	if(Addr_Surplus_page == WriteAddr)
	{
		if(Byte_Numpage > 0)
		{
			while(Byte_Numpage--)
			{
				SPI_FLASH_PageWrite(pBuffer, WriteAddr, SPI_FLASH_PageSize);
				pBuffer += SPI_FLASH_PageSize;
				WriteAddr += SPI_FLASH_PageSize;
			}
			if(Byte_Remainder > 0)
			{
				SPI_FLASH_PageWrite(pBuffer, WriteAddr, Byte_Remainder);
				pBuffer += Byte_Remainder;
				WriteAddr += Byte_Remainder;
			}
		}
		if(Byte_Numpage == 0 && Byte_Remainder > 0)
		{	
			SPI_FLASH_PageWrite(pBuffer, WriteAddr, Byte_Remainder);
			pBuffer += Byte_Remainder;
			WriteAddr += Byte_Remainder;
		}
	}
}


/**
  * @brief  Read a buffer of data
	* @param  pBuffer: The pointer point to the data
	*					WriteAddr: The place that we want to find the data
	*					NumByteToWrite: The number of bytes that we want to read
	* @retval None
  */
void SPI_FLASH_BufferRead(u8 *pBuffer, u32 ReadAddr, u16 NumByteToWrite)
{
	u32 i;
	
	SPI_FLASH_CS_0;
	
	SPI_FLASH_SendByte(W25X_ReadData);
	SPI_FLASH_SendByte((ReadAddr & 0xFF0000) >> 16);
	SPI_FLASH_SendByte((ReadAddr & 0xFF00) >> 18);
	SPI_FLASH_SendByte(ReadAddr & 0xFF);
	
	for(i=0; i<NumByteToWrite; i++)
	{
		pBuffer[i] = SPI_FLASH_SendByte(Dummy_Byte);
	}
	
	SPI_FLASH_CS_1;
}


/**
  * @brief  Throw a error prompt.
	* @param  errorcode: The code of the error.  
	* @retval 0
  */
uint8_t SPI_TIMEOUT_Callback(uint8_t errorcode)
{
	FLASH_ERROR("Ack Wait TimeOut! Error Code: %d", errorcode);
	return 0;
}

main.c

#include <bsp_spi_flash.h>
#include <bsp_usart.h>
#include <bsp_led.h>


u32 Buffercmp(uint8_t *pBuffer1, uint8_t *pBuffer2, uint16_t BufferLength);


typedef enum { FAILED = 0, PASSED = !FAILED} TestStatus;

/* »ñÈ¡»º³åÇøµÄ³¤¶È */
#define TxBufferSize1   				(countof(TxBuffer1) - 1)
#define RxBufferSize1           (countof(TxBuffer1) - 1)
#define countof(a)              (sizeof(a) / sizeof(*(a)))
#define  BufferSize             (countof(Tx_Buffer)-1)

#define  FLASH_WriteAddress     0x00000
#define  FLASH_ReadAddress      FLASH_WriteAddress
#define  FLASH_SectorToErase    FLASH_WriteAddress


uint8_t Tx_Buffer[] = "Hello!";
uint8_t Rx_Buffer[BufferSize];

u32 TransferStatus1 = 0;

__IO uint32_t DeviceID = 0;
__IO uint32_t FlashID = 0;

int main(void)
{
	LED_GPIO_Config();
	
	USART_GPIO_Config();
	USART1_Config();
	printf("Why so serious ?\n  Just begin.\n");
	
	//SPI_GPIO_Config();
	
	SPI_Config();
	DeviceID = SPI_FLASH_ReadDeviceID();
	while(SPI_I2S_GetFlagStatus(SPI_, SPI_I2S_FLAG_BSY));
	FlashID = SPI_FLASH_ReadID();
	//Here is so strange, it always print the FlashID is 0xFFFFFF until I print the DeviceID.
	printf("\r\nFlashID is 0x%X,  Manufacturer Device ID is 0x%X\r\n", FlashID, DeviceID);
	
	SPI_FLASH_SectorErase(FLASH_SectorToErase);
	
	SPI_FLASH_BufferWrite(Tx_Buffer, FLASH_WriteAddress, BufferSize);
	printf("\r\nдÈëµÄÊý¾ÝΪ£º\r\n%s", Tx_Buffer);
	
	
	SPI_FLASH_BufferRead(Rx_Buffer, FLASH_ReadAddress, BufferSize);
	printf("\r\n¶Á³öµÄÊý¾ÝΪ£º\r\n%s", Rx_Buffer);
	
	TransferStatus1 = Buffercmp(Tx_Buffer, Rx_Buffer, BufferSize);
	
	if(!TransferStatus1)
	{
		LED2_ON;
		printf("Succeed");
	}
	else
	{
		LED1_ON;
		printf("Failure");
	}
	
	while(1);
}


/**
  * @brief  Compare two figure is euqal or not
	* @param  pBuffer1: The pointer point to the first figure
	*					pBuffer2: The pointer point to the second figure
	*					BufferLength: The number of bytes that we want to compare
	* @retval 0: The two pBuffer is equal
	*					1: The two pBuffer is unequal
  */
u32 Buffercmp(uint8_t *pBuffer1, uint8_t *pBuffer2, uint16_t BufferLength)
{
	while(BufferLength--)
	{
		if(*pBuffer1 != *pBuffer2)
		{
			return 1;
		}
		
		pBuffer1++;
		pBuffer2++;
	}
	return 0;
}

void Delay(__IO uint32_t nCount)
{
  for(; nCount != 0; nCount--);
}