CONNECTION PROBLEM

[ediboost]

Hi everyone! im Edison, I’ve been working on a UAEFI Rev E (this is my 6th unit for an installation, and I’ve had no issues before). I connected the board to the PC and opened TunerStudio to work on a base map before connecting the unit to the engine (same as usual). It connected without any problems, but after a minute or less, the connection reset with a warning message about a Watchdog clock reset (I’m not familiar with that and couldn't find it in the TunerStudio settings).

I tried a firmware reset, but the process stopped with a warning. After that, the PC stopped recognizing the device as 'rusEFI'; instead, it shows up as 'USB SERIAL COM X'. I’ve also tried to upload the firmware via the UAEFI bundle in DFU auto mode, but the console closes automatically after a few seconds.

I also tried a manual DFU (powering the device while holding the PROG button). The PC recognizes the device as 'STM32 BOOTLOADER', but when I click on 'Manual DFU mode', it shows this message:



that's all i can try by myself, so i came here for help greetings from Chile!

[AndreyB]

Warning: Device is under Read Out Protection or Target is held under reset

this seems like a variation of https://github.com/rusefi/rusefi/issues/8926 problem

Good news that you have DFU still working, in some cases it's even worse!

We have stm32-remove-read-out-protection.bat in the bundle - that one would reset RDP. Once RDP is reset, you should be able to DFU erase and re-load.

[ediboost]

Thank you Andrey for your fast response, i run the stm32-remove-read-out-protection.bat. now i can erase the DFU with no issue but when i click on the MANUAL DFU mode, now runs but fails on the middle of the update. shows this:



Error: Data mismatch found at address 0x0800C000 (byte = 0xFF instead of 0x86)
Error: Download verification failed

any idea? i was so happy

[AndreyB]

See linked ticket

Now you would need srm32cube programmer, or wait until we create a similar file to remove page protection write bits

[ediboost]

THANK YOU SO MUCH!

she's back! i connect the board via STM32cube programmer, the software showed that I needed to click on 3 missing checkboxes. After that, I was able to load the firmware normally in manualDFU.

now TunerStudio connects perfectly with no resets or warnings

xmas is back