main.c

STM32所有外设例子程序（需自己修改）

/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
* File Name          : main.c
* Author             : MCD Application Team
* Version            : V2.0.1
* Date               : 06/13/2008
* Description        : Main program body 
********************************************************************************
* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
* CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*******************************************************************************/
/* Includes ------------------------------------------------------------------*/
#include "fsmc_nand.h"
															 	
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
#define BUFFER_SIZE         0x400
#define NAND_ST_MakerID     0x20
#define NAND_ST_DeviceID    0x76

/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
NAND_IDTypeDef NAND_ID;
GPIO_InitTypeDef GPIO_InitStructure;
NAND_ADDRESS WriteReadAddr;

u8 TxBuffer[BUFFER_SIZE], RxBuffer[BUFFER_SIZE];

ErrorStatus HSEStartUpStatus;
vu32 PageNumber = 2, WriteReadStatus = 0, status= 0;
u32 j = 0;

/* Private function prototypes -----------------------------------------------*/
void RCC_Configuration(void);
void NVIC_Configuration(void);
void Fill_Buffer(u8 *pBuffer, u16 BufferLenght, u32 Offset);

/* Private functions ---------------------------------------------------------*/
/*******************************************************************************
* Function Name  : main
* Description    : Main program.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
int main(void)
{

#ifdef DEBUG
  debug();
#endif
   
  /* System Clocks Configuration */
  RCC_Configuration();   

  /* NVIC Configuration */
  NVIC_Configuration();

  /* PF.06, PF.07 and PF.08  config to drive LD1, LD2 and LD3 *****************/
  /* Enable GPIOF clock */
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOF, ENABLE);
  
  /* Configure PF.06, PF.07 and PF.08 as Output push-pull */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7 | GPIO_Pin_8;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
  GPIO_Init(GPIOF, &GPIO_InitStructure);

  /* Enable the FSMC Clock */
  RCC_AHBPeriphClockCmd(RCC_AHBPeriph_FSMC, ENABLE);
  
  /* FSMC Initialization */
  FSMC_NAND_Init();

  /* NAND read ID command */
  FSMC_NAND_ReadID(&NAND_ID);

  /* Verify the NAND ID */
  if((NAND_ID.Maker_ID == NAND_ST_MakerID) && (NAND_ID.Device_ID == NAND_ST_DeviceID))
  {

    /* NAND memory address to write to */ 
    WriteReadAddr.Zone = 0x00;
    WriteReadAddr.Block = 0x00;
    WriteReadAddr.Page = 0x00; 

    /* Erase the NAND first Block */
    status = FSMC_NAND_EraseBlock(WriteReadAddr);

    /* Write data to FSMC NAND memory */
    /* Fill the buffer to send */
    Fill_Buffer(TxBuffer, BUFFER_SIZE , 0x66);

    status = FSMC_NAND_WriteSmallPage(TxBuffer, WriteReadAddr, PageNumber);

    /* Read back the written data */
    status = FSMC_NAND_ReadSmallPage (RxBuffer, WriteReadAddr, PageNumber);
   
    /* Verify the written data */
    for(j = 0; j < BUFFER_SIZE; j++)
    {
      if(TxBuffer[j] != RxBuffer[j])
      {     
        WriteReadStatus++;
      } 
    }

    if (WriteReadStatus == 0)
    {	/* OK */
      /* Turn on LD1 */
      GPIO_SetBits(GPIOF, GPIO_Pin_6);
    }
    else
    { /* KO */
      /* Turn on LD2 */
      GPIO_SetBits(GPIOF, GPIO_Pin_7);     
    }
  }
  else
  {
    /* Turn on LD3 */
    GPIO_SetBits(GPIOF, GPIO_Pin_8);  
  }

  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)
    {
    }
  }
}

/*******************************************************************************
* Function Name  : NVIC_Configuration
* Description    : Configures Vector Table base location.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void NVIC_Configuration(void)
{
#ifdef  VECT_TAB_RAM  
  /* Set the Vector Table base location at 0x20000000 */ 
  NVIC_SetVectorTable(NVIC_VectTab_RAM, 0x0); 
#else  /* VECT_TAB_FLASH  */
  /* Set the Vector Table base location at 0x08000000 */ 
  NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0);   
#endif
}

/*******************************************************************************
* Function name : Fill_Buffer
* Description   : Fill the buffer
* Input         : - pBuffer: pointer on the Buffer to fill
*                 - BufferSize: size of the buffer to fill
*                 - Offset: first value to fill on the Buffer
* Output param  : None
*******************************************************************************/
void Fill_Buffer(u8 *pBuffer, u16 BufferLenght, u32 Offset)
{
  u16 IndexTmp = 0;

  /* Put in global buffer same values */
  for (IndexTmp = 0; IndexTmp < BufferLenght; IndexTmp++ )
  {
    pBuffer[IndexTmp] = IndexTmp + Offset;
  }
}

#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****/