can't connect to stm32h755ZIT

[Plata]

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?

[mƎALLEm]

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.

 

 

 

[Plata]

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

[mƎALLEm]

Hello,

For Simulink usage please contact Mathworks on their forums.