TMS570LS0232: Can TMS570LS 02x/03x/04x be used to generate 3Phase center aligned PWM to control a PMSM motor?

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user1355220

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Part Number: TMS570LS0232

HET of TMS570LS  02x/03x/04x only has 4 even pins, and 128 words of instruction.

Anyone sucessed?

• TMS570LS0232

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user1355220

• Jul 18, 2017 4:10 AM
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3 Replies

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  Anthony F. Seely

  

  • Jul 18, 2017 2:32 PM

  The even pins are the ones bonded out to the package.
  
  The logic for the 'odd' pins is implemented.
  
  So you can write the program to toggle the odd pins, and the XORSHARE will combine the odd pin and even pin (from HET program view) onto the even physical pin using the XOR function to resolve the two inputs.

  
  Ex.  you can set XORSHARE between pins 0 and 1.   Write software to toggle pins 0 and 1 in HET.    With XORSHARE turned on what comes out physical HET pin 0 is the XOR of logical pin 0 and logical pin 1.

  
  
  Actually we prioritize the even pins on the HET to come out of the smaller pin count packages because they are most useful.. they can be toggled individually, or with XORSHARE or ANDSHARE modes.

  -Anthony

  Best Regards,

  Anthony Seely

  If my reply answers your question please click on the green button "Verify Answer".

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• Prodigy 30 points

  

  user1355220

  

  • Jul 23, 2017 1:09 AM

  In reply to Anthony F. Seely:

  

  In HET IDE，if the device is TMS570LS 02x, only four XOR channels can be actived. In Motor control application, at least 6 channels needed.

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• Mastermind 47300 points

  

  Chuck Davenport

  

  • Jul 24, 2017 9:45 PM

  In reply to user1355220:

  Hello User,
  
  As Anthony mentioned, there are more pairs possible if you consider that all pins are implemented internally and simply not bonded to a pin. For the LS0x32 partnumbers, all even numbered channels up to NHET[30] are bonded out or capable of being bonded out via IOMM (mux) configuration. To use the unbonded channels in the XOR mode, you may need to be programmed outside of Halcogen. You may also be able to see more combinations if you configure the IOMM tab to bring out more NHET channels via the pinmux configuration.

  Thanks and Regards,

  Chuck Davenport

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