Clone ST-LINK Error: No STM32 target found!

[AlexPCB]

Title edited to note that this is not a genuine ST-Link

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11:19:26 : ST-LINK SN : 37FF71064E57343652791543
11:19:26 : ST-LINK FW : V2J46S7
11:19:26 : Board : --
11:19:26 : Voltage : 3.24V
11:19:26 : Error: Unable to get core ID
11:19:26 : Error: No STM32 target found! If your product embeds Debug Authentication, please perform a discovery using Debug Authentication

I am using a LoRa module E77-900M22S that has incorporated a STM32WLE5CCU6. Also i am using a ST-Link V2 mini connected to program the micro. I have connected SWDIO and SWCLK properly and the module has 3.24V so the problem its not the connections. I dont know why it doesnt detect the MCU.

[Andrew Neil]

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@AlexPCB wrote:

i am using a ST-Link V2 mini .

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There is no such ST product as a V2 Mini - do you mean one of these ?

There is no guarantee that those will work properly (or at all) with ST's tools - see this.

[Andrew Neil]

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@AlexPCB wrote:

I am using a LoRa module E77-900M22S .

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You mean this: https://www.cdebyte.com/products/E77-900M22S/2 ?

Have you checked with EBYTE for support: https://www.cdebyte.com/ContactUs ?

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@AlexPCB wrote:

I have connected SWDIO and SWCLK properly and the module has 3.24V so the problem its not the connections.

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Please show your schematic for people to confirm.

A good, clear photo could also help.

You haven't mentioned VTARGET, GND, or NRST ... ?

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@AlexPCB wrote:

I dont know why it doesnt detect the MCU.

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Maybe EBYTE have locked-out programming?

[AlexPCB]

I am using one of those actually. There is any problem with it or should I use an original one?

[AlexPCB]

https://www.cdebyte.com/products/E77-900M22S/2 This is exactly the one that i am using

This is the schematic of the connection:

[Andrew Neil]

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@AlexPCB wrote:

There is any problem with it 

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Again, there is no guarantee that those will work properly (or at all) with ST's tools - see this.

Note also that the pinouts do vary.

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@AlexPCB wrote:

 should I use an original one?

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That would remove one area of doubt and uncertainty!

Just be sure to buy from an Authorised ST Distributor - not Amazon, ebay, Ali, or similar

[AlexPCB]

To be clear, I have a clone ST-LINK but CubeProgrammer recognizes it and I can update its firmware perfectly just as seen in the image:

Even if it is recognized, does the problem "No STM32 target found" come from it being a clone?

[Andrew Neil · Accepted solution]

Again, there is no guarantee that those will work properly (or at all) with ST's tools.

They are simply not supported.

You could try faffing around; you might get lucky - or you could just get a genuine ST-Link (or other genuine supported brand) and get on with your project ...

[AScha.3]

>Even if it is recognized, does the problem "No STM32 target found" come from it being a clone?

Depends...

- CubeProgrammer should always work fine

- CubeIDE little bit more picky, but if genuine stm32 inside your "clone" , it should work fine

-- BUT : set to reset -> software reset !   Because the "clones" have no working hardware reset for stm32 !!!