RT_OTA 使用外部spi flash 作为download 分区失败

发布于 2019-06-27 18:08:21 浏览：2001 订阅该版

平台： STM32F407 探索者 开发板

参考[Bootloader](https://www.rt-thread.org/document/site/application-note/system/rtboot/an0028-rtboot/) 文档，制作 Bootloader  分区如图所示：

![2019-06-27_180115.jpg](/uploads/201906/27/180308o9ftf32943b88cbz.jpg)

执行下载命令后，卡住，如图：

```cpu usg:0.0
[SFUD]Find a Winbond flash chip. Size is 16777216 bytes.
[SFUD]spi flash device is initialize success.

_      ____  ____  ____ 
/ \__/|/  _ \/  __\/ ___\
| |\/||| | \||  \/||    \
| |  ||| |_/||  __/\___ |
\_/  \|\____/\_/   \____/

\ | /
- RT -     Thread Operating System
 / | \     4.0.1 build Jun 27 2019
 2006 - 2019 Copyright by rt-thread team
lwIP-2.0.2 initialized!
[SFUD] Find a Winbond flash chip. Size is 16777216 bytes.
[SFUD] W25Q128 flash device is initialize success.
[I/sal.skt] Socket Abstraction Layer initialize success.
[D/FAL] (fal_flash_init:61) Flash device |         onchip_flash_16k | addr: 0x08000000 | len: 0x00010000 | blk_size: 0x00004000 |initialized finish.
[D/FAL] (fal_flash_init:61) Flash device |         onchip_flash_64k | addr: 0x08010000 | len: 0x00010000 | blk_size: 0x00010000 |initialized finish.
[D/FAL] (fal_flash_init:61) Flash device |        onchip_flash_128k | addr: 0x08020000 | len: 0x000e0000 | blk_size: 0x00020000 |initialized finish.
[I/FAL] ==================== FAL partition table ====================
[I/FAL] | name     | flash_dev         |   offset   |    length  |
[I/FAL] -------------------------------------------------------------
[I/FAL] | app      | onchip_flash_128k | 0x00000000 | 0x00080000 |
[I/FAL] | download | onchip_flash_128k | 0x00000000 | 0x00080000 |
[I/FAL] =============================================================
[I/FAL] RT-Thread Flash Abstraction Layer (V0.4.0) initialize success.
[E/DFS] There is no space to register this file system (rom).
Root File System initialized!
[I/wn] RT-Thread webnet package (V2.0.0) initialize success.
msh />
cpu usg:0.
http_ota http://console.ubibot.cn/temp/rtthread.rbl
http file_size:227940
[I/http_ota] Start erase flash (download) partition!
```

然后就卡住，想问问大神，在APP代码里面怎么修改，才能让固件下载到片外 flash 。