STM32F4 No STM32 target found! If your product embeds Debug Authentication, please perform a discove

[valter_meconi]

Olá pessoal!
Eu comprei dois blackpills com o stm32f411, conectei-os ao gravador stlink v2, e na primeira vez que ele se conectou, eu os apaguei usando apagamento em massa, tudo estava bem até agora, mas quando eu conectei a segunda vez ele me retornou com esta mensagem: Erro: Nenhum alvo STM32 encontrado! Se o seu produto incorporar a Autenticação de Depuração, execute uma descoberta usando a Autenticação de Depuração
e agora não consigo me conectar

[KDJEM.1]

Hello @valter_meconi and welcome to the Community :),

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STM32F4 No STM32 target found! If your product embeds Debug Authentication, please perform a discove

Hey guys! I bought two blackpills with the stm32f411, connected them to the stlink v2 recorder, and the first time it connected, I erased them using mass erase, everything was fine until now, but when I connected the second time it came back to me with this message: Error: No STM32 targets found! If your product incorporates Debug Authentication, perform a discovery using Debug Authentication and now I can't connect

Please check the jumpers.

Could you please try to connect with another cable?

Could you please check this FAQ: How to solve debugger connection issues

I hope this help you to solve the issue.

Kaouthar

[TDK]

blackpill relies on the USB DFU interface for programming. You'll need to hold BOOT0 high during reset to recover. You will need to re-program the bootloader they had on them to start with.

Alternative idea: use a nucleo board with a proper debugger.

[Tesla DeLorean]

Needs VCC, SWDIO, SWCLK and GND to an authentic ST-LINK/V2

The STM32 needs to be authentic, you're not going to be able to connect to counterfeit and off-brand parts.

[valter_meconi]

Thank you for responding, I bought two blackpill cores, and tested them with 3 recorders, and none were successful!! but I have the stm32f103, with this MCU my recorder debugs (connects).

[valter_meconi]

obrigado por responder, mas você poderia me dar mais detalhes sobre isso, eu tenho o stm32f103 e ele se conecta perfeitamente com o meu stlinkv2

[valter_meconi]

Obrigado por responder, eu comprei de um fornecedor com a listra como o componente original, na verdade eu comprei o stm32f103 e esses núcleos estão funcionando corretamente!

[valter_meconi]

Mais uma pergunta, como vou reprogramar se não conseguir me conectar?

[Tesla DeLorean]

Perhaps a high resolution picture, in focus, of the F411 component/board ?

[valter_meconi]