Dumping - Beken 72xx

Dumping firmware

Dumping is also done using UART (TX1/RX1).

Connect power to the board: GND and 3V3 (from your UART adapter or a higher-powered source).
Connect an USB<->UART adapter to the chip: RX->TX1, TX->RX1.
Install Python and Git.
Clone bk7231tools: git clone https://github.com/notkmhn/bk7231tools
cd bk7231tools
Run dumping: python bk7231tools.py read_flash -d COM96 -b 230400 -s 0 -c 512 dump.bin. Change the port (-p) and baudrate (-b) if you want.

!!! note The --no-verify-checksum is not required on BK7231N in latest versions of bk7231tools, despite the readme saying otherwise.
```
  It's advised to run without that option, to make sure the dump is valid.
```
You have 10 seconds to reset the chip (pull CEN to GND, or power-cycle the board) after running the command. The program will then begin dumping.

!!! note If you need to, you can increase the linking timeout using --timeout parameter.