How to boot on RSS?

[DK.7]

I have STM32F407VG board and it has error in flashing time see screen.

I have STM32F407VG board, and it has error in flashing time see screen. Yesterday was everything ok but today is broken, I don't know why!

I found a solution https://community.st.com/s/question/0D53W00000V0NbvSAF/got-error-like-stlink-error-devtargetnothalted-when-to-flash-the-program

but my board doesn't have a pin "VDD", see screen.

And second, misunderstanding what is mean "(hope you are using boot selection through Boot 0)."?

[AScha.3]

VDD =3.3V , on your board; for bootloader mode just set a jumper on B0+3v3 pins.

but first try debug with setting "software system reset" and "connect under reset" ;

if nothing starts debug connection,

power off ! ,

put the jumper on B0+3v3 ,

then power up

and try debug again...

[DK.7]

Thanks for the answer!

But how to do "software system reset" and "connect under reset" ?

[AScha.3]

in the settings, where you adjust, how debug should start..

in IDE menu (run)-> debug configurations... (your project)-> Debugger -->

here: softw.sys.reset