Softbricking controller by uploading false lisp-code

[Tomblarom]

I played around with lisp a little bit and used a false syntax, which softbricked my controller. It was not a big issue, because I'm currently reflashing it over and over again for development, but for normal users this situation might be very frustrating. I used an VESC Express to connect via VESC Tool 6.06 (3bbc685) over CAN. I compiled the firmware using the latest bldc-master (c01d583).

This is the script which softbricked my controller:

(loopwhile t
    (print (get-adc 6))
    (sleep 0.2)
)

Correct would have been:

(loopwhile t {
    (print (get-adc 6))
    (sleep 0.2)
})

Unplugging the VESC Express restored the frozen VESC Tool and I reflashed the firmware using SWD. However, VESC Tool keept freezing and I had to do a full chip erase, before flashing once again.. It also was not possible to access through SWD during the freeze-situation.

I'm using usbipd together with WSL2 Ubuntu and a generic STM32 flasher. During the freeze, the device unbinds itself and WSL USB Manager 5.5.0 also freezes. 😅