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can't connect Motor Profiler to Nucleo-L476RG

Thierry81
Associate II

Hello,

i am beginner in ST motor control domain.

I have installed the following software versions :

MC workbench v6.3.2

CUBE IDE v1.16.1

CUBE MX v 6.12.1

I have a problem when trying to connect my board using profiler.

In log, i can see the last two messages :

UART worker: Succesfully opn port COM8 @ 921600

Try to configure the board

 

And the process stop here.

Precisions :

The STM32 has been full erased previously with Cube programmer

Profiler is the only tool connected to my board when i am trying to make the connection with profiler

With Cube IDE as well.

Can you help me ? I have spent several hours looking for solutions but i'm still stuck.

Best regards

4 REPLIES 4
GMA
ST Employee

Hello @Thierry81 and welcome to ST Community,

Once board flashed and FW launched, open Motor Pilot and click on "Discover Board".

 

If you agree with the answer, please accept it by clicking on 'Accept as solution'.
Best regards.
GMA
Thierry81
Associate II

Thank you for your answer,

I have tried. It works, that is, the motor pilot is OK and well connected to the board.
But when i try to start, there are errors because the parameters of the motor are not
exact.
And that is the problem. I want to run the profiler so to obtain the exact parameters,
but it is still stuck when attempting to connect with the same message


But maybe I am wrong, and don't understand your environment. Let me ask you
few essential questions about your system :

* Using motor pilot is adapted when all the FOC software (what you call FW) is already flashed, True ?
* in this case, the program running on board is listening the UART whose signals are carried by the USB cable (via STlink), True ?

Now, if i want to use Profiler :
* i thought that even with a blank flash of my Nucleo board, the system could load a "minimum command" so to allow profiling
motor. Am i wrong here ? Nevertheless, i remember i have read that it was possible. If so, how the flash process is done ? Is it possible with UART ?

Finally, is this flow correct ?
* use Motor control workbench first with a default machine (not mine, approximative param),
* flash the Nucleo Board
* open the Motor pilot and select  Discover board, and the connection via UART must be OK
* open profiler to test my motor, hoping the connection stay OK (but for me, it does not work !!)
* save the motor model
* go back to Motor control wb and make the new conf with my new motor param .

If this flow is not OK, can you give me the steps knowing I am using an new motor ? How
to profile ?

Thank you very much
Best regards

Hello @Thierry81,

Refer to User Manual documentation available through "Workbench tool">About>Documentations>Documentation>"User manual" tab, "Motor Profiler Application Note".

If communication is lost, you can try with a lower PWM frequency to decrease CPU load.

If you agree with the answer, please accept it by clicking on 'Accept as solution'.
Best regards.
GMA

Hello

Thank you for the app note

OK first we need to launch Motor Control WB.

Then, in user interface i can set the baud rate of UART2. It s better to know exactly rather then let the profiler app dectect the good bdrate. Then Compile et load the project in brd through cube ide.

Then when i try to connect profiler with good bdrate, proliler app says "not a profiler program in the brd" or something lire that...

So go back in Control WB, and go in apllication setting. Here is a case to check to indicate that application is for profiling.

After programming with cube IDE, go back to profiler and all is OK, profiling can start !

Best regards