Timeout on cc3200tool with ESP32-C3

Hi everyone,

I’m struggling to get a flash backup from my Toniebox. Despite trying multiple configurations and hardware setups, I keep getting the timed out while waiting for ack / Did not get ACK on break condition error.

Recently, I tried a ESP32-C3 connected to the Toniebox’s CC3200 chip via a custom tag connector. VCC and SOP2 are bridged.

What I tried so far:
Used the -g (Gateway) flag: cc3200tool -p COM5 -g read_flash backup.bin.

  • First attempts with a uart from a to z delivery (COM3) were unsuccessful

  • Swaped for a CP2102 (COM4)- exactly the same.

  • Changed on to an ESP32-c3 (COM5) and

  • changed the baud rate (standard and 921600 as configured in the ESP gateway) with the flasher

  • Tried both read_flash and read_all_files.

  • Running the CMD as admin and within a dedicated folder to avoid “Permission denied”.

  • Swapped USB cables

  • Tested different USB ports on the laptop (USB 2.0 and 3.0).

  • tried different toniebox batteries

    Any more ideas as to that I can try?
    Thank you!

Please be more transparent how you connect everything and how you configured the esp32 gateway.


I hope this picture shows it well enough.
TX is connected to RX and vice versa. GND and GND are connected, VCC and SOP2 are bridged.

In the web flasher I set “Reset” to be Pin 10, “control” to be pin 9, and “LED” is pin 8.
RST (box) → Pin 10/Reset (ESP32); Pins 9 and 8 remain free. So is the 3,3V Pin