[Filesystem] stm32f103-fire-arbitrary BSP on_chip_flash littlefs 文件系统...

发布于 2019-04-11 23:25:38 浏览：2497 订阅该版

* 本帖最后由 tcsun 于 2019-5-8 00:15 编辑 *

** stm32f103-fire-arbitrary BSP on_chip_flash littlefs 挂载失败！！！**

BSP:  stm32f103-fire-arbitrary

问题：先采用spi W25Q64 Flash 挂载littlefs 文件系统成功！想用stmF103的(512K byte)片内flash。使用littlefs 文件系统。但挂载失败！
先用fal 命令测试片上flash读写是成功的
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msh />fal write 0 1 2 3 4 5 6 7 8
Too many args ! We only Use:
fal write 0 1 2 3 4 5 6 7 
Write data success. Start from 0x00000000, size is 7.
Write data: 1 2 3 4 5 6 7 .
msh />fal read 0 8
Read data success. Start from 0x00000000, size is 8. The data is:
Offset (h) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
[00000000] 01 02 03 04 05 06 07 FF                         ........
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fal_cfg.h 如下：
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#ifndef _FAL_CFG_H_
#define _FAL_CFG_H_

#include <rtthread.h>
#include <board.h>

extern const struct fal_flash_dev stm32_onchip_flash;
extern struct fal_flash_dev nor_flash0;

/* flash device table */
#define FAL_FLASH_DEV_TABLE                                          \
{                                                                    \
    &stm32_onchip_flash,                                             \
                &nor_flash0,                                                                                                                                                                                                                 \
}
/* ====================== Partition Configuration ========================== */
#ifdef FAL_PART_HAS_TABLE_CFG

/* partition table */
#define FAL_PART_TABLE                                                                      \
{                                                                                           \
    {FAL_PART_MAGIC_WROD,        "app",                           "onchip_flash",       0,          496 * 1024, 0}, \
    {FAL_PART_MAGIC_WROD,        "param",                         "onchip_flash",       496* 1024 , 16 * 1024, 0},  \
    {FAL_PART_MAGIC_WROD,        "filesystem",         "W25Q64",          0 ,                                 8*1024 * 1024, 0},  \
}
#endif /* FAL_PART_HAS_TABLE_CFG */
#endif /* _FAL_CFG_H_ */

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挂载部分代码如下：
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/* 定义要使用的分区名字 */
//#define FS_PARTITION_NAME              "filesystem"   
#define FS_PARTITION_NAME              "param"

int main(void)
{

struct rt_device *mtd_dev = RT_NULL;
        struct rt_device *block_dev = RT_NULL;

/* 初始化 fal */    
    fal_init();
    /* 生成 mtd 设备 */
    mtd_dev = fal_mtd_nor_device_create(FS_PARTITION_NAME);
    if (!mtd_dev)
    {
        LOG_E("Can't create a mtd device on '%s' partition.", FS_PARTITION_NAME);
    }
//                block_dev = fal_char_device_create(FS_PARTITION_NAME);
//                if(!block_dev)
//                {
//                        rt_kprintf("Can't creat a  block device on '%s' partition./n",FS_PARTITION_NAME);
//                }
    else
    {
//                                rt_kprintf("fal_mtd_nor_device_create  %s OK!<br>",FS_PARTITION_NAME);
                        rt_kprintf("creat a block device on  %s OK!<br>",FS_PARTITION_NAME);
        /* 挂载 littlefs */
        if (dfs_mount(FS_PARTITION_NAME, "/", "lfs", 0, 0) == 0)
        {
            LOG_I("Filesystem initialized!");
        }
        else
        {
            /* 格式化文件系统 */
            dfs_mkfs("lfs", FS_PARTITION_NAME);
            /* 挂载 littlefs */
            if (dfs_mount("filesystem", "/", "lfs", 0, 0) == 0)
            {
                LOG_I("Filesystem initialized!");
            }
            else
            {
                LOG_E("Failed to initialize filesystem!");
            }
        }
    }

return RT_EOK;
}
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先用block_dev = fal_blk_device_create(FS_PARTITION_NAME); 创建 一个块设备。
设备创建成功。但dfs_mount（）提示“ The flash device type must be MTD!”

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如果改为：mtd_dev = fal_mtd_nor_device_create(FS_PARTITION_NAME);   再dfs_mount（） 。

先是会程序挂掉，后来找到问题是在  struct rt_device *fal_mtd_nor_device_create(const char *parition_name) 函数 里。
因为 &stm32_onchip_flash,  是没有init函数的，所以按下面修改。
                //sunny try debug--190411
                if (fal_flash->ops.init)
                {
                                fal_flash->ops.init();
                }
//                fal_flash->ops.init();

但又提示下面出错：
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**请哪位对littlefs 系统熟悉的大神 指点一下。不胜感激！！！！！！！！！   我最终的目的就是想在片上flash 实现littlefs 文件系统。**