轻量级文件系统LittleFS完整工程 -

标题: 轻量级文件系统LittleFS完整工程 [打印本页]

作者: 2232126544 时间: 2020-2-7 15:15
标题: 轻量级文件系统LittleFS完整工程
LittleFS文件系统虽然官方有开源源码，但移植到自己板子上时还是有这样那样的问题，现将移植好的完整工程上传，经原子战舰开发板验证通过。
manc.c源码如下：

littlefs例程—经原子战舰开发板验证.7z (643.61 KB, 下载次数: 101)

/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "stm32f1xx_hal.h"
#include "spi.h"
#include "usart.h"
#include "gpio.h"

/* USER CODE BEGIN Includes */
//#include "bsp_w25qxx.h."
#include "lfs.h"
#include "W25QXX.h"
/* USER CODE END Includes */

/* Private variables ---------------------------------------------------------*/

/* USER CODE BEGIN PV */
/* Private variables ---------------------------------------------------------*/

/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);

/* USER CODE BEGIN PFP */
/* Private function prototypes -----------------------------------------------*/

/* USER CODE END PFP */

/* USER CODE BEGIN 0 */
uint32_t w25qxx_type=0;

lfs_t lfs;
lfs_file_t file;

static int user_provided_block_device_read(
const struct lfs_config *lfsc, lfs_block_t block, lfs_off_t off, void *buffer, lfs_size_t size)
{
W25QXX_Read((uint8_t *)buffer,(block * lfsc->block_size + off),size);
return LFS_ERR_OK;
}

static int user_provided_block_device_prog(
const struct lfs_config *lfsc, lfs_block_t block, lfs_off_t off, const void *buffer, lfs_size_t size)
{
W25QXX_Write_NoCheck((uint8_t*)buffer,(block * lfsc->block_size + off),size);
return LFS_ERR_OK;
}

static int user_provided_block_device_erase(const struct lfs_config *lfsc, lfs_block_t block)
{
W25QXX_Erase_Sector(block);
return LFS_ERR_OK;
}
static int user_provided_block_device_sync(const struct lfs_config *lfsc)
{
return LFS_ERR_OK;
}

uint8_t lfs_read_buf[256];
uint8_t lfs_prog_buf[256];
uint8_t lfs_lookahead_buf[16];       // 128/8=16
uint8_t lfs_file_buf[256];
// configuration of the filesystem is provided by this struct
const struct lfs_config cfg = {
      // block device driver context data
      .context = NULL,
// block device operations
.read  = user_provided_block_device_read, //¶áè¡êy¾Y
.prog  = user_provided_block_device_prog, //±à3ìò»¸öéèÇø
.erase = user_provided_block_device_erase,//2á3yò»¸öéèÇø
.sync  = user_provided_block_device_sync,

// block device configuration
.read_size = 256,
.prog_size = 256,//FLASH_PAGE_SIZE ò3′óD¡
.block_size = 4096,//FLASH_SECTOR_SIZE éèÇø′óD¡
.block_count = 1024,//éèÇøêyá¿
.lookahead = 128,//±ØDëêÇ32μÄÕûêy±¶

.read_buffer = lfs_read_buf,
      .prog_buffer = lfs_prog_buf,
      .lookahead_buffer = lfs_lookahead_buf,
      .file_buffer = lfs_file_buf,
};

/* USER CODE END 0 */

/**
  * @brief  The application entry point.
  *
  * @retval None
  */
int main(void)
{
  /* USER CODE BEGIN 1 */
//Lifflefs_Test\Lifflefs_Test.axf: Error: L6218E: Undefined symbol __aeabi_assert (referred from lfs.o).
  /* USER CODE END 1 */

  /* MCU Configuration----------------------------------------------------------*/

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  HAL_Init();

  /* USER CODE BEGIN Init */

  /* USER CODE END Init */

  /* Configure the system clock */
  SystemClock_Config();

  /* USER CODE BEGIN SysInit */

  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_USART1_UART_Init();
  MX_SPI2_Init();
  /* USER CODE BEGIN 2 */
  w25qxx_type=W25QXX_ReadID();

int err = lfs_mount(&lfs, &cfg);

// reformat if we can't mount the filesystem
// this should only happen on the first boot
if (err) {
      lfs_format(&lfs, &cfg);
      lfs_mount(&lfs, &cfg);
}

// read current count
uint32_t boot_count = 0;
lfs_file_open(&lfs, &file, "/boot_count", LFS_O_RDWR | LFS_O_CREAT);
lfs_file_read(&lfs, &file, &boot_count, sizeof(boot_count));

// update boot count
boot_count += 1;
lfs_file_rewind(&lfs, &file);
lfs_file_write(&lfs, &file, &boot_count, sizeof(boot_count));

// remember the storage is not updated until the file is closed successfully
lfs_file_close(&lfs, &file);

// release any resources we were using
lfs_unmount(&lfs);

// print the boot count
printf("boot_count: %d\n", boot_count);

  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {

  /* USER CODE END WHILE */

  /* USER CODE BEGIN 3 */

  }
  /* USER CODE END 3 */

}

/**
  * @brief System Clock Configuration
  * @retval None
  */
void SystemClock_Config(void)
{

  RCC_OscInitTypeDef RCC_OscInitStruct;
  RCC_ClkInitTypeDef RCC_ClkInitStruct;

/**Initializes the CPU, AHB and APB busses clocks
*/
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
  RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
  RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
_Error_Handler(__FILE__, __LINE__);
  }

/**Initializes the CPU, AHB and APB busses clocks
*/
  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                           |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
  {
_Error_Handler(__FILE__, __LINE__);
  }

/**Configure the Systick interrupt time
*/
  HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);

/**Configure the Systick
*/
  HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);

  /* SysTick_IRQn interrupt configuration */
  HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
}

/* USER CODE BEGIN 4 */

/* USER CODE END 4 */

/**
  * @brief  This function is executed in case of error occurrence.
  * @param  file: The file name as string.
  * @param  line: The line in file as a number.
  * @retval None
  */
void _Error_Handler(char *file, int line)
{
  /* USER CODE BEGIN Error_Handler_Debug */
  /* User can add his own implementation to report the HAL error return state */
  while(1)
  {
  }
  /* USER CODE END Error_Handler_Debug */
}

#ifdef  USE_FULL_ASSERT
/**
  * @brief  Reports the name of the source file and the source line number
  *       where the assert_param error has occurred.
  * @param  file: pointer to the source file name
  * @param  line: assert_param error line source number
  * @retval None
  */
void assert_failed(uint8_t* file, uint32_t line)
{
  /* USER CODE BEGIN 6 */
  /* User can add his own implementation to report the file name and line number,
   tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
  /* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

作者: 孙小伟 时间: 2020-3-9 15:00
楼主你好，我使用的也是这种配置，为什么我在调试时，程序运行到lfs_file_open会打印错误lfs_error:978: Corrupted dir pair at 0 0，然后debug提醒我The following failed: File:D:\TEST fMashandLFS\flash SrcVfs.c Line:2746
Expression failed: file->flags LFS F_OPENED，能指点一下吗，我用的是内部flash

作者: 2232126544 时间: 2020-7-9 11:59

孙小伟发表于 2020-3-9 15:00
楼主你好，我使用的也是这种配置，为什么我在调试时，程序运行到lfs_file_open会打印错误lfs_error:978: Co ...

这种问题我也没有遇见过，仿真也出现不了你的情况

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