[BUG] No fysetc s6 boot with small bootloader

[GMagician]

Did you test the latest bugfix-2.0.x code?

Yes, and the problem still exists.

Bug Description

Uploading small bootloader and compiling Marlin with S6_8000 env program doesn't work. No new usb appears on PC.
Same Marlin configuration on 10000 env works (properly compiled).

Original precompiled Marlin on fysect repo works as well, even with S6_8000

Attached cnf is default with usb and board changed

Bug Timeline

No response

Expected behavior

No response

Actual behavior

No response

Steps to Reproduce

No response

Version of Marlin Firmware

bugfix 2.0.9.1

Printer model

No response

Electronics

No response

Add-ons

No response

Your Slicer

No response

Host Software

Repetier Host

Additional information & file uploads

Configuration.zip

[kyon03]

i thought my board was defective hoping for a fix

[ellensp]

@GerogeFu can you take a look into this?

[GerogeFu]

Let me try

[GMagician]

Tested but it seems not to work

[GerogeFu]

How did you test ? Different platformio env need different bootloader. If you use FYSETC_S6_8000 env,you need Bootloader-FYSETC_S6.hex, FYSETC_S6 env you need Bootloader-FYSETC_S6_10000.hex. You can find the bootloader here. Try this branch. https://github.com/GerogeFu/Marlin/tree/boot_issue

[GMagician]

I tested loading small boot with st cube and then compiled FYSETC_S6_8000 env (and also FYSETC_S6), uploaded via PlatformIO and via stcude as well

[thisiskeithb]

Fixed in #22421

[github-actions]

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