LAUNCHXL-F28069M: sensored control PMSM

Safwat Ahmed Choudhury

Part Number: LAUNCHXL-F28069M
Other Parts Discussed in Thread: BOOSTXL-DRV8301, CONTROLSUITE, LAUNCHXL-F28379D

hello,

I would like to control a small PMSM with Launchxl-f28069M and BOOSTXL-DRV8301. I would like a sensored (encoder based) control, so I understand I have to use QEP module of Launchxl-f28069M. I found that documentation for a sensored control is rare nowadays as sensorless in more common. nevertheless I found a document on PMSM control using Launchxl-f28377S.

Here is question,

I see in the document on PMSM control using Launchxl-f28377S that, project was taken from controlSUITE\development_kits\TIDM-SERVO-LAUNCHXS. can I use the same ccs project for controlling PMSM using Launchxl-f28069M?

thanks

safwat

over 4 years ago

0 Ramesh Ramamoorthy over 4 years ago

TI__Mastermind 27240 points

You should be able to, but that would require porting the analog and digital IOs.

0 Safwat Ahmed Choudhury over 4 years ago in reply to Ramesh Ramamoorthy

Intellectual 285 points

hello,

thanks for your reply.sorry I am new at this, i could not understand what you meant by " but that would require porting the analog and digital IOs" and how do I do that?

thanks

safwat

0 Ramesh Ramamoorthy over 4 years ago in reply to Safwat Ahmed Choudhury

TI__Mastermind 27240 points

The software for 377s device is written based on the GPIOs and analog inputs of that device on that board. When you want to use the same software on a different device on a different PCB, then it will have different pins doing the same job of the original board.

Hence I mentioned that the software will have to be ported over to fit the new environment. Hope it helps.

0 Safwat Ahmed Choudhury over 4 years ago in reply to Ramesh Ramamoorthy

Intellectual 285 points

okay. I understand now. I am unable to buy Launchxl-f28377S as it seems its an obsolete product. is there any available launchpad whose architecture is same as Launchxl-f28377S so that I dont need to port?

0 Ramesh Ramamoorthy over 4 years ago in reply to Safwat Ahmed Choudhury

TI__Mastermind 27240 points

The 377s launch pad is replaced with 379d (part # LAUNCHXL-F28379D).

However, you will still have to port, as you cant avoid it.

0 Safwat Ahmed Choudhury over 4 years ago in reply to Ramesh Ramamoorthy

Intellectual 285 points

porting seems to be a difficult process from one launchpad to another. do you have any suggesion how to proceed or is there any documents that i can study?

thanks

safwat

0 MatthewPate over 4 years ago in reply to Safwat Ahmed Choudhury

TI__Guru 71815 points

Safwat,

The port bewtween the F28377S and the F28379D LaunchPads should be straigtforward as these below to the same super set of devices, it would be just comparing the pin locations across the 2 LPs and then changing the code accordingly.

The challege with porting from the F28377S to the F28069M is that these are fundamentally different devices(the F28069M being older than the F28377S), so there are likely features that are not available as well as support code/libraries written in different style.

With the F28377S and the F28379D all drivers are shared, etc. This should be straightforward.

Best,
Matthew

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LAUNCHXL-F28069M: sensored control PMSM