can't connect to stm32h755ZIT

Plata · ‎2025-02-17

Initially, I ran a program from Simulink onto my STM32H755ZI, but I encountered an issue where only one core was functional, even though the STM32H755ZI has two cores. This led to the error "No device found on target."

As I continued troubleshooting and making modifications, the situation worsened. Now, my STM32 board is completely unable to connect to any programming tools, including STM32CubeProgrammer, as shown in the attached image.

Could you please assist me in resolving this issue?

SofLit · ‎2025-02-17

Hello @Plata and welcome to the community,

Check out this article. It could be related to a wrong power supply configuration. Board configured in LDO mode instead of SMPS.

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Plata · ‎2025-02-17

I still can't solve the problem. Even after following the above method, I still can't connect. stm32cubeprogrammer

SofLit · ‎2025-02-18

Hello,

For Simulink usage please contact Mathworks on their forums.

To give better visibility on the answered topics, please click on "Accept as Solution" on the reply which solved your issue or answered your question.
PS:
1 - This is NOT an online support (https://ols.st.com) but a collaborative space.
2 - Please be polite in your reply. Otherwise, it will be reported as inappropriate and you will be permanently blacklisted from my help.