Enabling Cm7 on Stm32H745-Disco

Cakal123 · ‎2024-03-11

Hello,

I am new to dual core processors. I was working on both cm4 and cm7. My main core was cm7. I accidentally disabled the cm7 core on Stm32CubeProgrammer and now I cannot connect to the board. Power comes and goes instantly. (I normally use STLK to connect the board.) What can I do to make my board work again?

SofLit · ‎2024-03-11

Hello,

You need to select the access port number 3 in STM32CubeProgrammer before to connect:

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TDK · ‎2024-03-11

Connect to the device over access port 3 to recover the device. This is a setting on the right side of STM32CubeProgrammer.

Unable to connect to STM32H7 devices - STMicroelectronics Community

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SofLit · ‎2024-03-11

Hello,

You need to select the access port number 3 in STM32CubeProgrammer before to connect:

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.

Cakal123 · ‎2024-03-11

I can’t see access port 3 on my STM32CubeProgrammer. There is only access port 0 on there. Also the target voltage goes down to zero. I think I need another solution.

SofLit · ‎2024-03-12

What is the CubeProgrammer version are you using?

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Cakal123 · ‎2024-03-12

I solved the problem. It was not about the CubeProgrammer version. When I only use STLK input, the target voltage goes to zero and I could only see the access port 0. I used both STLK and POWER inputs and then I could see the access port 3 and enabled the cm7.