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Not able to detect STM32H743 in MATLAB simulink

DJ_IND
Associate III

Hi,

 

I am using Nucleo-144 boards in my project where I have changed the clock source for STLINK IC to external crystal using STLINK firmware upgrade tool. Before it was HSI/2 =8MHz. Now I am trying to revert the configuration back to 8MHz but I am not able to detect the Nucleo board now with 8 MHz. Is this known issue?

 

I tried configuring it back to 5MHz using tool below and it works fine , detects all the time in MATLAB. But not with 8MHz (HSI/2). 

 

How to revert back the configuration and make the board detectable?

 

 

DJ_IND_0-1751879373603.png

 

1 ACCEPTED SOLUTION

Accepted Solutions
mƎALLEm
ST Employee

Hello,

Do you mean that you are not able to revert back to HSI/2 =8MHz?

If you are able to see this value after reverting back the settings: 

mALLEm_0-1751880704217.png

this is not a board issue but may be to your MATLAB Simulink config: clock config for example? forget to revert back the clock to 8MHz in Matlab simulink?

For Matlab/simulink questions please ask them in their forum: https://www.mathworks.com/matlabcentral/content/communities.html

 

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.

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5 REPLIES 5
mƎALLEm
ST Employee

Hello,

Do you mean that you are not able to revert back to HSI/2 =8MHz?

If you are able to see this value after reverting back the settings: 

mALLEm_0-1751880704217.png

this is not a board issue but may be to your MATLAB Simulink config: clock config for example? forget to revert back the clock to 8MHz in Matlab simulink?

For Matlab/simulink questions please ask them in their forum: https://www.mathworks.com/matlabcentral/content/communities.html

 

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.

Yes. I probes the R5 resistor on Nucleo-144, I am getting 8MHz clock. But I am not able to connect with STM32 using MATLAB simulink. 

 

 

In that case it's not a board issue nor the STLINK module but it's a Matlab/simulink environement issue that we don't support. As I said please ask the question in 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.

But it was working fine with 8MHz prior change to 5MHz (HSE/5). 

As it was reverted back to "HSI/2= 8MHz" with STLINK firmware upgrade tool and you are measuring 8MHz so this is not a board issue. Check your clock config in the Matlab/Simulink.

And again, for Simulink questions please ask them in the Matlab/Simulink forum.

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.