LP-MSPM0G3507: BLDC Motor Documentation Not Accurate and GUI Not Connecting

Tim Simerly

Part Number: LP-MSPM0G3507
Other Parts Discussed in Thread: DRV8323,

Dear Support:

I am following the documentation in SDK v1.10.00.05 for the Sensorless_FOC_Motor_Control_User_Guide which references the DRV8323RS Hardware User Guide and Step 1 of the Hardware Setup refers to removing a J3 jumper. This is incorrect - there is no J3 jumper, but instead a J18 jumper - so I assume this is just a documentation error.

It was my understanding that in order to use this BLDC motor example I had to have the latest LP-MSPM0G3507 and SDK v1 or greater which I have. However in the Hardware Setup documentation of this SDK, there is a picture of the DRV8323 mounted on top of the LP-MSPM0G3507, but the LP is the older version (Rev 1.0) and not the latest version (Rev A). So to run this example using SDK V1.10, which version of the LP-MSPM0G3507 do I need?

In addition, I was able to build this example in the SDK and download to my LP with no issues and run. I don't seen anything on the console output however I assume this is expected. When trying to bring-up the GUI to connect and control the motor, I was not able to connect. Below is what I see from bringing the GUI up and trying to connect:

Notice at the bottom of this screen there is this wording:

Error: Failed to connect: CS_DAP_0: Error initializing emulator: (Error -260 @ 0x0)

Too many things not looking good here. Any idea as to what is the problem? Possibly I am using the wrong LP? If not, any ideas as to what may be the problem?

Thanks,
Tim

over 2 years ago

0 Cash Hao11 over 2 years ago

TI__Mastermind 45685 points

Hi Tim,

The LP Rev A can work with this demo.

When you use the GUI, you need to close the CCS at the same time.

If it still can not connect to the GUI, try to use the GUI to download the project to the board. You need to press the S1(PA18) button before powering up the LP and keeps pressing S1 after download completed.

Best regards,

Cash Hao

+1 Tim Simerly over 2 years ago in reply to Cash Hao11

TI__Genius 9975 points

Hey Cash:

Ok, that's weird. Tried it again today and it's coming up fine every time. I guess it was late and just needed a good night sleep beforehand. Or perhaps me too. :-)

GUI is working fine. Just learning all the knobs to turn, but seems to be working good now.

Thanks,
Tim

0 Tim Simerly over 2 years ago in reply to Tim Simerly

TI__Genius 9975 points

Hey Cash:

From looking at this CCS project for BLDC and interfacing to the GUI, I don't see a UART being used in the config file of the project. Can you advise how the GUI is communicating to the MSPM0G LP? And how to port this to replace the GUI with a host processor and a communication interface (i.e. UART)?

Thanks,
Tim

0 Cash Hao11 over 2 years ago in reply to Tim Simerly

TI__Mastermind 45685 points

Hi Tim,

In this demo, it uses SWD to communicate with the GUI for parameter updating and others.

If you need to build your own host, you need to work by your own.

Best regards,

Cash Hao

0 Tim Simerly over 2 years ago in reply to Cash Hao11

TI__Genius 9975 points

Hey Cash:

Yes, I figured as such. Thanks for confirming. I will move this to internal - please respond.

Thanks,
Tim

0 Cash Hao11 over 2 years ago in reply to Tim Simerly

TI__Mastermind 45685 points

Hi Tim,

Get it. What else I can do for you?

Best regards,

Cash Hao

+1 Tim Simerly over 2 years ago in reply to Cash Hao11

TI__Genius 9975 points

Hey Cash:

I'm good for now. Thanks for your help. I will take this up internally from here on out.

Thanks,
Tim

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LP-MSPM0G3507: BLDC Motor Documentation Not Accurate and GUI Not Connecting