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CCS/DRV8301-69M-KIT: SIN-COS Encoder with DRV8301-69M kit

Rushi Jariwala
Expert 1225 points

Part Number: DRV8301-69M-KIT
Other Parts Discussed in Thread: DRV8301

Tool/software: Code Composer Studio

Hi,

I have a motor with sin-cos encoder and I need to interface it to the DRV8301-69M-KIT that I recently purchased. I am not able to find any document on how to do it. Please let me know the steps. 

Thanks

  • 0
    TI__Genius 17175 points
    This PDF shows a good TI Design to interface a sin-cos encoder with a C2000 device: www.ti.com/.../tidua05a.pdf

    You'll notice that the interface requires an SPI module, 2x ADC channels, and an QEP module be available. The SPI and QEP modules are broken out to the DRV8301 base board for your use, but there are no additional ADC inputs available by default. You could try and co-opt some of the other pins on the board for the ADC inputs, but it will require you to modify the board yourself. Plus, you'll need to prepare the driving and feedback signals as demonstrated in the TI Design. Overall, the DRV8301-69M-KIT is not well suited to support the encoder you are using without custom modifications

    Sean
  • 0 in reply to Sean Bigley
    TI__Genius 17175 points
    I misspoke - using the TI Design I linked, you should be able to interface the sin-cos encoder with the DRV8301-69M-KIT using the SPI and QEP interfaces. If you choose to use the external ADC and interface with SPI, you won't need to interface the additional ADC pins as that function is already performed.

    Sean