Not able to detect STM32H743 in MATLAB simulink

[DJ_IND]

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?

 

 

 

[mƎALLEm]

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: 

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

 

[DJ_IND]

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. 

 

 

[mƎALLEm]

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.

[DJ_IND]

Hi,

I have tried connecting same nucleo 144 board to ST32cube programmer after setting freq to8MHz but i am getting below error. So irrespective of MATLAB it is not detecting in any other tool. 

 

 

[Andrew Neil]

You've marked this as solved, but it seems not solved?

See this for how to un-mark a solution.

Your log shows that there is no power on the Target:

 

[mƎALLEm]

@Andrew Neil unmarked the solution.

@DJ_IND  as pointed out by @Andrew Neil , the VDD voltage detected by STLINK is 0V. as if the MCU is not powered. Did you remove any jumper from the board? the IDD jumper for example?