my board is unable to detect when I flashed it after that led is glow is not glowing plz help me

[HPunm.1]

earlier using st-link for debugging that time it was not showing anything on the display and the blacklight was also not flowing then using stlink utility flashed the board, now not is been detected so please me regarding this

[Tesla DeLorean]

What board and STM32 are you talking about?

What exactly is the error reported?

Can you perhaps use current tools like STM32 Cube Programmer rather than the Utilities?

If it can't find the Target, can you try Connect Under Reset method?​

[HPunm.1]

I am using STM32H745I--DISCO and STM32 cube ide1.11. we are not able to detect the com port and we are not able to load the code from stlk jumper and also the LEDs are not glowing can please send the default firmware file (.exe )

[Tesla DeLorean]

STM32Cube\Repository\STM32Cube_FW_H7_V1.10.0\Projects\STM32H745I-DISCO\Demonstrations\Binaries\STM32H7xx_EEMBC.hex

[Tesla DeLorean]

Did it work at some point and then stop?

Make sure to use a quality cable and connect to the right USB connection.

Charging cables are not suitable.

Is Windows seeing the board in Device Manager?

If it worked previously what did you do that might have changed that?

Keep the board off metal or conducting surfaces.​

[MM..1]

Hmm this board maybe isnt for you ... but check JUMPER and use only this con to PC

[HPunm.1]

I have done all those ​step which you have mentioned and used the jumper at the right place but the issue not resolved yet. I am doing last three four weeks

[Tesla DeLorean]

Does sound like you damaged it, but helps to just answer questions

If you can't see the ST-LINK/V3 in Device Manager, good chance you've damaged the STM32F723 or it's power supply.

Pull a schematic for the board, and work your way through the circuit. Not a lot that's particularly user-serviceable, but you could at least check power at various nodes in the circuit, and determine if other parts of the board are viable, or not.

[MM..1]

Somethink is bad , you need know what ...

measure board and repair .... Discovery kits with STM32H745XI and STM32H750XB microcontrollers - User manual

[HPunm.1]

We have tried everything what you have told to recover the board but it wasn't working. And there is no external damage to the board ​the board looks very fine. So we are thinking that there is any internal issue with the board like missing libraries.

We have any option for that to repair the board from company side.​

[MM..1]

Your info is horible uninformative. Move board to somebody who know how test electric circuit.

For exmple connect power and measure current, use exernal stlink usw.

[Tesla DeLorean]

Ok so you've connected to the STM32F723 implementing the ST-LINK/V3, that you've probably erased at this point. So no longer going to function, nor connect to the PC or the STM32H745

@Sara BEN HADJ YAHYA​ @Amel NASRI​ is there a means/method to recover the ST-LINK/V3 firmware, like a boot loader, or other image?

[MM..1]

Seems ST make big mistake and dont write into pdf warning Dont solder con into ... but feature reprogram too F72x on STLink part is cool if is descripted.

External programming for you now only usable on

and call support for bin file STLink repair.