main.c

通过SPI接口写FLASH

/******************************************************************************
* File Name          : main.c
* Author             : u-easytech
* Version            : v2.0
* Design By          : RIC_TAN
* Date               : 10/23/2008
* Description        : AT45SPI FLASH 基本测试程序

********************************************************************************
			               www.u-easytech.com
*******************************************************************************/

/* Includes ------------------------------------------------------------------*/
//#include "common.h"
#include "stdio.h"
#include <stm32f10x_lib.h>              /* STM32F10x Library Definitions      */
#include "AT45SPIFLASH.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/

/* Private typedef -----------------------------------------------------------*/
typedef enum {FAILED = 0, PASSED = !FAILED} TestStatus;
//extern pFunction Jump_To_Application;

ErrorStatus HSEStartUpStatus;
extern void SetupUSART(void);


/* Private define ------------------------------------------------------------*/
#define  FLASH_Max_WriteAddress     0x4000000
#define  FLASH_WriteAddress     0x000000
#define  FLASH_ReadAddress      FLASH_WriteAddress
#define  FLASH_SectorToErase    FLASH_WriteAddress
//#define  M25P64_FLASH_ID        0x202017
#define  SPI_FLASH_ID        0x1F2600
#define  BufferSize (countof(Tx_Buffer)-1)

/* Private macro -------------------------------------------------------------*/
#define countof(a) (sizeof(a) / sizeof(*(a)))

/* Private variables ---------------------------------------------------------*/
u8 Tx_Buffer[] = "STM32F10x SPI Firmware Library Example: communication with an AT45 SPI FLASH";
u8 Index, Rx_Buffer[BufferSize];
volatile TestStatus TransferStatus1 = FAILED, TransferStatus2 = PASSED;
vu32 FLASH_ID = 0;


/* Private function prototypes -----------------------------------------------*/
void RCC_Configuration(void);
void GPIO_Configuration(void);
TestStatus Buffercmp(u8* pBuffer1, u8* pBuffer2, u16 BufferLength);




/* Private functions ---------------------------------------------------------*/
/*******************************************************************************
* Function Name  : main
* Description    : Main program.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
int main(void)
{
#ifdef DEBUG
  debug();
#endif
  RCC_Configuration();
  /* Flash unlock */
 // FLASH_Unlock();
    SetupUSART();

  // Push_Button_Config();
   /* GPIO configuration */
   GPIO_Configuration();
    /* Initialize the SPI FLASH driver */
  SPI_FLASH_Init();
  // GPIO_WriteBit(GPIOF, GPIO_Pin_6, Bit_SET);
  /* Get SPI Flash ID */
  FLASH_ID = SPI_FLASH_ReadID();
  //GPIO_WriteBit(GPIOF, GPIO_Pin_6, Bit_SET);
   printf("\nFLASH_ID is %x  \r\n",FLASH_ID);
  /* Check the SPI Flash ID */
  if (FLASH_ID == SPI_FLASH_ID)
  {
     printf("Check SPI FLASH is success!");
    /* OK: Set GPIO_LED pin 6 */					                
    GPIO_WriteBit(GPIOF, GPIO_Pin_6, Bit_SET);
  }
  else
  {
    /* Error: Set GPIO_LED pin 7 */
    GPIO_WriteBit(GPIOF, GPIO_Pin_7, Bit_SET);
    printf("Check SPI FLASH is failed!");
  }

                    
   DF_page_earse(0);
  
  /* Write Tx_Buffer data to SPI FLASH memory */
  SPI_FLASH_BufferWrite(Tx_Buffer, FLASH_WriteAddress, BufferSize);
  DF_page_earse(1);
  /* Read data from SPI FLASH memory */
  SPI_FLASH_BufferRead(Rx_Buffer, FLASH_ReadAddress, BufferSize);

  /* Check the corectness of written dada */
  TransferStatus1 = Buffercmp(Tx_Buffer, Rx_Buffer, BufferSize);
  printf("Read from SPI_FLASH data are : %s\n",Rx_Buffer);
  if(TransferStatus1==PASSED)
  GPIO_WriteBit(GPIOF, GPIO_Pin_8, Bit_SET);
  else
  printf("SPI Flash data operate error!\n");
  /* TransferStatus1 = PASSED, if the transmitted and received data by SPI1
     are the same */
  /* TransferStatus1 = FAILED, if the transmitted and received data by SPI1
     are different */

  /* Perform an erase in the Flash followed by a read of the written data */
  /* Erase SPI FLASH Sector to write on */
  //SPI_FLASH_SectorErase(FLASH_SectorToErase);

  /* Read data from SPI FLASH memory */
  SPI_FLASH_BufferRead(Rx_Buffer, FLASH_ReadAddress, BufferSize);

  /* Check the corectness of erasing operation dada */
  for (Index = 0; Index < BufferSize; Index++)
  {
    if (Rx_Buffer[Index] != 0xFF)
    {
      TransferStatus2 = FAILED;
      // GPIO_WriteBit(GPIOF, GPIO_Pin_8, Bit_SET);
    }
  }

  


  while (1)
  {}
}


/*******************************************************************************
* Function Name  : RCC_Configuration
* Description    : Configures the different system clocks.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void RCC_Configuration(void)
{
  /* RCC system reset(for debug purpose) */
  RCC_DeInit();

  /* Enable HSE */
  RCC_HSEConfig(RCC_HSE_ON);

  /* Wait till HSE is ready */
  HSEStartUpStatus = RCC_WaitForHSEStartUp();

  if (HSEStartUpStatus == SUCCESS)
  {
    /* Enable Prefetch Buffer */
    FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);

    /* Flash 2 wait state */
    FLASH_SetLatency(FLASH_Latency_2);

    /* HCLK = SYSCLK */
    RCC_HCLKConfig(RCC_SYSCLK_Div1);

    /* PCLK2 = HCLK */
    RCC_PCLK2Config(RCC_HCLK_Div1);

    /* PCLK1 = HCLK/2 */
    RCC_PCLK1Config(RCC_HCLK_Div2);

    /* PLLCLK = 8MHz * 9 = 72 MHz */
    RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9);

    /* Enable PLL */
    RCC_PLLCmd(ENABLE);

    /* Wait till PLL is ready */
    while (RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET)
    {}

    /* Select PLL as system clock source */
    RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);

    /* Wait till PLL is used as system clock source */
    while (RCC_GetSYSCLKSource() != 0x08)
    {}
  }

  /* Enable GPIOA, GPIOC and USART1 clock  */
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOF
                         | RCC_APB2Periph_USART1, ENABLE);
}



/*******************************************************************************
* Function Name  : GPIO_Configuration
* Description    : Configures the different GPIO ports.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void GPIO_Configuration(void)
{
  GPIO_InitTypeDef GPIO_InitStructure;

  /* Configure GPIO LED pin6 and pin7 as Output push-pull --------------------*/
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7|GPIO_Pin_8|GPIO_Pin_9;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
  GPIO_Init(GPIOF, &GPIO_InitStructure);
}



/*******************************************************************************
* Function Name  : Buffercmp
* Description    : Compares two buffers.
* Input          : - pBuffer1, pBuffer2: buffers to be compared.
*                : - BufferLength: buffer's length
* Output         : None
* Return         : PASSED: pBuffer1 identical to pBuffer2
*                  FAILED: pBuffer1 differs from pBuffer2
*******************************************************************************/
TestStatus Buffercmp(u8* pBuffer1, u8* pBuffer2, u16 BufferLength)
{
  while (BufferLength--)
  {
    if (*pBuffer1 != *pBuffer2)
    {
      return FAILED;
    }

    pBuffer1++;
    pBuffer2++;
  }

  return PASSED;
}
#ifdef  DEBUG
/*******************************************************************************
* Function Name  : assert_failed
* Description    : Reports the name of the source file and the source line number
*                  where the assert_param error has occurred.
* Input          : - file: pointer to the source file name
*                  - line: assert_param error line source number
* Output         : None
* Return         : None
*******************************************************************************/
void assert_failed(u8* file, u32 line)
{
  /* User can add his own implementation to report the file name and line number,
     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */

  /* Infinite loop */
  while (1)
  {}
}
#endif

/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/