Cannot Connect to STM32G0B0CET6

[ra345j]

Hello, 

I am trying to flash a STM32G0B0CET6 and keep getting "Error: No STM32 target found!" When trying to connect. 

Through the power supply I can see that the device properly resets. The voltage target also goes to 0 when the device turns off. I am using an ST-Link V2 with a Tag-connect TC2050-ARM2010 and TC2050-IDC cable to program. 

[TDK]

Has it ever worked?

Does correct voltage get detected by STM32CubeProgrammer?

Consider showing the schematic.

[MOBEJ]

Hello @ra345j 

Ensure all connections between the ST-Link and the STM32 board are secure, and also check that the jumpers are set correctly. Update the ST-Link firmware using STM32CubeProgrammer if needed. If the issue persists, try the "Connect Under Reset" mode. For more help, refer to the FAQ: "How to Solve Debugger Connection Issues."

Br

[Andrew Neil]

Welcome to the forum.

Please see How to write your question to maximize your chances to find a solution for best results; in particular, please give full details of your development host and  target hardware setup.

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@ra345j wrote:

getting "Error: No STM32 target found!" When trying to connect. 

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Where, exactly, are you getting that?  what tool(s) & versions are you using?

Please show the full logs & messages you get.

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@ra345j wrote:

I am using an ST-Link V2 with a Tag-connect TC2050-ARM2010 and TC2050-IDC cable 

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Is it a genuine ST-Link?

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

Are you sure the cable wiring is correct?

As @TDK said, please show a schematic.

Some good, clear photos may also help

See also:

How to solve connection errors when connecting and programming the STM32 target board.

How to solve debugger connection issues.