We are using STM32H743ZIT6 MCU , but i am unable to connect the STlink-V3SET LKV3SET$AT3 Programmer with our device target but still facing the error "Target no device found". Kindly help and guide. Same activity is done on 2-3 different device , but

[Tajwar.Chandel]

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[Imen.D]

Hello @Tajwar.Chandel​ ,

Did you try with STM32Cubeprogrammer?

Try changing the USB cables.

Check the jumpers configuration following this UM2189.

Try connecting with mode 'under reset'.

Imen

[Tajwar.Chandel]

Hi Imen,

Thanks for the reply. I have tried after replace the micro USB cable. But still failed. I have traying to connect with STlink-V3Set. Result target no device found. When i connect the same target with Nucleo ST link then its connected. Why ? I just want to know why its is not connected with STLINK-V3SET debugger.

If our hardware was faulty then the device could not connect with Nucleo-ST link.

Kindly respond.

Regards,

Tajwar

Mob. [phone]

[Tesla DeLorean]

Show how physically connected.​