January 7, 2021
EBAZ4205 Bitcoin miner board - reverse engineering
I am learning a lot just playing with the U-Boot that is on my board.
I was hoping to modify the U-Boot env variables to reconfigure it to
default to doing network boot for me, but the U-Boot on my board was
not build to include the ability to save a modified env to flash.
I discovered the "nand" group of commands in U-Boot, which include a
"nand dump" command. This allowed me to write a Python script to
dump the entire 128M flash chip. Here is that image for those who
may find it interesting or useful:
Feedback? Questions?
Drop me a line!
Tom's Computer Info / tom@mmto.org