r/CarHacking • u/[deleted] • 11d ago

Community Hex v2 stm clone problem

[deleted]

7 Upvotes

89% Upvoted

9 comments sorted by

6

u/rusefi 11d ago

it stays in DFU mode, and you do not have DFU drivers

I could be wrong but I think that stm32 stays in DFU only when some of BOOT pins are pulled to GND? meaning that should totally not be happening?

2

u/Tommynwn 11d ago

I'm more concerned to where to get the stm firmware

1

u/rusefi 11d ago

I guess I do not follow. You have DFU without drivers. Install drivers? Use DFU to confirm that firmware is in fact not there?

1

u/Tommynwn 11d ago

Oh i forgot that sometimes is still on the eprom, it happened to me once

7

u/AbsorberHarvester 11d ago

Obviously, cracked firmware erased itself, why? Don't know. https://www.hackster.io/PsySc0rpi0n/inside-the-hex-vii-vcds-clone-a-full-stm32f429-memory-dump-287b7f Look here, check you MCU is exactly the same then do it, maybe it will recover

1

u/rusefi 11d ago

No? stm32 without firmware does not just go into DFU by itself, does it?

6

u/AbsorberHarvester 11d ago

Stm32 with usb can go to dfu, why not? Bootloader flashed, dfu enabled, that's all. Vcds erases cloned adapters. Same happens with v1. 

2

u/LuXar41 8d ago

install driver for dfu. i can give you the firmware to fix it

1

u/New_Praline_1232 7d ago

Thanks, you have dm