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libretiny/docs/platform/realtek-ambz/dumping.md
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Dumping - Beken 72xx

Dumping firmware

Dumping is also done using UART (TX2/RX2; Log_UART).

  • 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.
  • Put the chip into download mode: reset the chip, while pulling UART2_TX to GND. If successful, the chip should print few garbage characters every second.
  • Disconnect TX from GND after powering up the board.
  • Install Python.
  • Grab rtltool.py from the link above.
  • Run dumping: python rtltool.py -p COM60 rf 0 0x200000 dump.bin. Change the port (-p) to your adapter's port.