Sunxi-fel

Hardware

• Hardware use USB Port
• Make sure use correct branch for board chips.
• Remove perpherials like LCDs, camera, etc to avoid interferences, use high quality USB cable
• Make sure no TF card or SPI flash

Enter into FEL Mode

• maybe need install driver from phoenix tools
• recognize as USB device: USB Device(VID_1f3a_PID_efe8)
• Use windows sunxi-fel tools are faster

• short connect Pin 1 and PIN4, then boot up board via USB power, this will connect SPI_CS to ground

Sunxi Tool Compile

For Zero do

• git clone https://github.com/Icenowy/sunxi-tools.git -b spi-rebase

For nano do

• git clone https://github.com/Icenowy/sunxi-tools.git -b f1c100s-spiflash

• 进入工具目录执行 make && sudo make install
• plug use device: Onda (unverified) V972 tablet in flashing mode [02B3]

Debug

sudo sunxi-fel version              #查看连接的cpu信息
AWUSBFEX soc=00001681(V3s) 00000001 ver=0001 44 08 scratchpad=00007e00 00000000 00000000
sunxi-fel -l
USB device 002:003   Allwinner F1C100s 

sudo sunxi-fel spiflash-info        #显示flash信息
Manufacturer: Unknown (C2h), model: 20h, size: 33554432 bytes.

Flash

• sudo sunxi-fel -p spiflash-write 0 Nano_flash_480272.bin

E:\Git-category\Git-Allwinner\allwinner\SDK\Flash Tool\sunxi-fel\sunxi-fel_windows工具>sunxi-fel -p spiflash-write 0 Nano_flash_800480.bin

60% [============================                    ]  96.0 kB/s, ETA 01:10

• sunxi-fel -p spiflash-write 0 E:\Git-category\Git-Allwinner\allwinner-f1c200s\Image\nano\images\Nano_pub_V4\image\Flash-16M\Nano_flash_800480.bin

Windows Version:

• Speed up to 90KB
• Use zadig-2.4.exe install driver WINUSB
• sunxi-fel -p spiflash-write 0 f1c200s.bin

Test

• For LPI Nano, debug port is UART0 U0T U0R (please notice silk print maybe wrong, try to swap txd and rxd), baudarete 115200

Reference

• GUI version - https://github.com/OtakuNekoP/bpi-fel-mass-storage-gui4win