SPI NOR 配置

SPI NOR 驱动配置

• Baremetal 配置

  在 Luban-Lite 根目录下执行 scons --menuconfig，进入 menuconfig 的功能配置界面，按如下选择：

  Board options  --->
      [*] Using Qspi0
      [ ] Using Qspi1
      [ ] Using Qspi2
      [ ] Using Qspi3
          Qspi0 Parameter  --->
               (100000000) Max frequency(Hz)
      [*] QSPI0 Devices: SPINOR  --->
          (100000000) SPINOR bus frequency(Hz)
  
  Drivers options  --->
      AIC Bare Driver  --->
          [*] Enable AIC MTD Bare Driver
      Peripheral  --->
          -*- SPINOR Driver SFUD: Serial Flash Universal Driver
  

  注：

  为了方便配置，使能 AIC_QSPI0_DEVICE_SPINOR 后，会自动选上 AIC_SPINOR_DRV、LPKG_USING_SFUD 和 AIC_MTD_BARE_DRV。

• RTOS 配置

  在 Luban-Lite 根目录下执行 scons --menuconfig，进入 menuconfig 的功能配置界面，按如下选择：

  Board options  --->
      [*] Using Qspi0
      [ ] Using Qspi1
      [ ] Using Qspi2
      [ ] Using Qspi3
          Qspi0 Parameter  --->
               (100000000) Max frequency(Hz)
      [*] QSPI0 Devices: SPINOR  --->
          (100000000) SPINOR bus frequency(Hz)
  
  Drivers options  --->
      Peripheral  --->
          -*- SPINOR Driver SFUD: Serial Flash Universal Driver
  
  Rt-Thread options  --->
      RT-Thread Components  --->
          Device Drivers --->
              -*- Using MTD Nor Flash device drivers
              -*- Using SPI Bus/Device device drivers
              -*-   Enable QSPI mode
              -*-   Using SFUD(Serial Flash Universal Driver)
              [*]     Using auto probe flash JEDEC SFDP parameter
              [*]     Using defined supported flash chip information table
              [*]     Using QSPI mode support
              (50000000) Default spi maximum speed(HZ)
  

  注：

  为了方便配置，使能 AIC_QSPI0_DEVICE_SPINOR 后，会自动选上 AIC_SPINOR_DRV、RT_USING_SFUD、LPKG_USING_SFUD 和 RT_USING_MTD_NOR。

文件系统配置

• Baremetal FatFS 配置

  Local packages options  --->
      Third-party packages options  --->
          [*] DFS: device virtual file system for baremetal mode  --->
              [*]   Using posix-like functions, open/read/write/close
              (8)   The maximal number of mounted file system
              (4)   The maximal number of file system type
              (16)  The maximal number of opened files
              [ ]   Using mount table for file system
              [*]   Enable elm-chan fatfs
                      elm-chan's FatFs, Generic FAT Filesystem Module  --->
              [*]   Enable ReadOnly file system on flash
              [ ]   Enable RAM file system

• RT-Thread FatFS 配置

  Rt-Thread options  --->
      RT-Thread Components  --->
          [*] DFS: device virtual file system  --->
              [*]   Using posix-like functions, open/read/write/close
              [*]   Using working directory
              (4)   The maximal number of mounted file system
              (4)   The maximal number of file system type
              (16)  The maximal number of opened files
              [*]   Using mount table for file system
              [*]   Enable elm-chan fatfs
                      elm-chan's FatFs, Generic FAT Filesystem Module  --->
                          (4096) Maximum sector size to be handled.
              [ ]   Using devfs for device objects
              [*]   Enable ReadOnly file system on flash
              [ ]   Enable RAM file system

  当 Using mount table for file system 选项打开时，系统启动后会根据一个 Table 配置来自动挂载文件系统。该 Table 定义在 board.c 中：

  #ifdef RT_USING_DFS_MNTTABLE
  #include <dfs_fs.h>
  
  const struct dfs_mount_tbl mount_table[] = {
  #if (defined(AIC_USING_FS_IMAGE_TYPE_FATFS_FOR_0) || defined(AIC_USING_FS_IMAGE_TYPE_FATFS_FOR_1))
      {"blk_rodata", "/rodata", "elm", 0, 0, 0},
  #endif
      {0}
  };
  #endif

• FatFS 支持写功能

  Baremetal 和 RT-Thread FatFS 都支持写功能，执行 make m 命令进入功能配置页，并进行如下配置：

  Application options  --->
       [*] FATFS enable write func in spinor
  

  因为 SPINOR 块大小是 4K，sector 是 512，代码兼容后，写速度较慢，不推荐使用 FatFS 写功能。

• RT-Thread Littlefs 配置

  Local packages options  --->
      Third-party packages options  --->
          [*] Littlefs: A high-integrity embedded file system  --->
              (256) disk read size
              (256) disk write size
              (4096) disk block size
              (256) lfs r/w cache size
              (128) lfs lookahead size

  注意，当 Using mount table for filesystem 选项打开时，系统启动后会根据一个 Table 配置来自动挂载文件系统。该 Table 定义在 board.c 中：

  #ifdef RT_USING_DFS_MNTTABLE
  #include <dfs_fs.h>
  
  const struct dfs_mount_tbl mount_table[] = {
  #ifdef LPKG_USING_LITTLEFS
      {"data", "/data", "lfs", 0, 0, 0},
  #endif
      {0}
  };
  #endif

文件系统镜像制作和烧录