此部分会用到mpi-r-tools.zip压缩包中的dfu-util.exe

1. 让MPi-R处于FEL模式。

2. 运行from-fel-to-dfu.bat脚本，双击运行。或者在Windows命令行运行脚本中的命令。

3. 此时，MPi-R会打印一些log，当看到这些时，表明MPi-R已处于DFU模式。

DFU waiting on SPI-NOR...
musb-hdrc: peripheral reset irq lost!
DFU waiting on SPI-NOR...
SF: Detected w25q128 with page size 256 Bytes, erase size 4 KiB, total 16 MiB

4.

5. 准备好NAND镜像，然后在Windows命令行中通过如下命令刷机。

 ./dfu-util.exe -R -a all -D output\images\sysimage-nand.img

刷机log：

mango@DESKTOP MINGW64 /d/share/windows/mpi-R-tools
$ ./dfu-util.exe -R -a all -D ../../sysimage-nand.img
dfu-util 0.9

Copyright 2005-2009 Weston Schmidt, Harald Welte and OpenMoko Inc.
Copyright 2010-2016 Tormod Volden and Stefan Schmidt
This program is Free Software and has ABSOLUTELY NO WARRANTY
Please report bugs to http://sourceforge.net/p/dfu-util/tickets/

Opening DFU capable USB device...
ID 1f3a:1010
Run-time device DFU version 0110
Claiming USB DFU Interface...
Setting Alternate Setting #0 ...
Determining device status: state = dfuIDLE, status = 0
dfuIDLE, continuing
DFU mode device DFU version 0110
Device returned transfer size 4096
Copying data from PC to DFU device
Download        [==                       ]  11%     15249408 bytes