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TMS320F28069M: Out of ROM Capability & GUI Composer Webapps

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Replies: 2

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Part Number: TMS320F28069M

I have confirmation items with regards of using this Launchpad.

1. Since TMS320F28069M Launcpad plus DRV8305EVM has the capability to spin any motor out ROM (e.g. Lab2a), does it mean that it can save the identified parameters in ROM? could you expain more about this capability? I'm little confused about its advantages versus out of RAM (e.g. Lab2b).

2. Can I use the webapps "InstaSPIN_F2806xM_UNIVERSAL" for stand alone option? Or does it have a different webapps?

    Reason: I installed "motorkitscncd69miso_v104" for guicomposer for F2806xM, but I think it is incorrect because the GUI cannot run the motor.

I hope you could help. Thank you very much.

Muriel

  • InstaSPIN-FOC has certain portions of functionality stored in ROM, namely the FAST estimator which is called using the EST set of API in Motorware examples. Lab2a is unique in that it also allows certain CTRL functions to be placed in ROM to offload some functionality from RAM for space constraints. You cannot save the identified parameters in ROM, as it is "Read Only Memory" (ROM), and cannot be written to. You must write to user.h, which when compiled, is stored in data memory

    You can use the InstaSPIN-F2806xM-UNIVERSAL GUI for testing purposes, but generally we do not see customers deploy this in end systems. It is mainly intended for beginning evaluation of InstaSPIN-FOC

    Sean

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  • In reply to Sean Bigley:

    Hello Sean.

    Thank you for your feedback.

    So it is possible that the motor parameters that was identified after testing, can be written to "user.h". And once I'll be running the motor again thru GUI, I will check the "user.h Params" so that the instaSPIN will refer from the specified motor parameters. and can now expect the motor to spin without fail.

    e.g.

    From GUI ⇒ To user.h (Motor Parameters)
    Rs = 0.01466 ⇒ Rs = 0.01466
    Ls-d = 0.05023 ⇒ Ls-d = 0.05023
    Ls-q = 0.05023 ⇒ Ls-q = 0.05023
    Rated Flux = 0.00035021 ⇒ Rated Flux = 0.00035021

    My purpose by the way is to choose which project can help me to spin the 4-pole motor (max 40,000rpm) without fail everytime I run the GUI.

    That's all. Thank you very much.

    Muriel

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