MCU isn't recognize

[AndrewFFFF]

Hello to everyone

I'm working with NUCLEO-C071RB.

I debug , all OK.

Because now i want bliud my board i tried to connect with the software Programmer with my ST/link2 device (external)

I disconnected JP2-4-6-7 like shown in screenshot.

I power on the board with usb cable.

The Programmer seems recnognize the MCU (NUCLEO-C071RB), but so what does it means "target no found"?

[Andrew Neil]

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@AndrewFFFF wrote:

I power on the board with usb cable.

The Programmer seems recnognize the MCU (NUCLEO-C071RB), 

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The on-board ST-Link is still connected to that USB - so the programmer will still see it.

But you have disconnected the target MCU from the on-board ST-Link - so it will say, "No target found"

Instead, you need to connect the programmer to your external ST-Link, and wire that ST-Link to the target MCU.

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@AndrewFFFF wrote:

 my ST/link2 device (external)

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Is it a genuine ST-Link ?

See: How to recognize a genuine ST-LINK/V2 versus a cloned one

In particular, anything looking like this is fake!

[Andrew Neil]

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@Andrew Neil wrote:

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Instead, you need to connect the programmer to your external ST-Link

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Use this drop-down to select which ST-Link to use:

[AndrewFFFF]

Here  with the board power on.

Here after the run the software Programmer without power on the board.

[Andrew Neil]

With both ST-Links connected to the PC, they should both be available in the drop-down list; eg,

You may need to press the 'refresh' button: 

Again, is your other ST-link a genuine ST one?

Please show (a) good, clear photograph(s) of your setup

PS:

You have to click the little arrow to get the list:

[AndrewFFFF]

I connected only SWDIO, SWCLK, NRST,   VCC GND

[AndrewFFFF]

so i can connect every jumpers, no conflit?

[Andrew Neil]

Those are the connections from the Target MCU to the ST-Link.

You also need to connect the ST-Link to the computer - via USB.

Again,  is your other ST-link a genuine ST one?

[AndrewFFFF]

Here the photo