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CCS/DRV8301: USB-EMU [R3] board has no terminal outputs for GPIO-39/51

Kurt Kloesel19
Prodigy 130 points
Part Number: DRV8301

Tool/software: Code Composer Studio

However, the USB-EMU board has no terminal outputs for GPIO-39/51 as indicated on the DRV830x-HC-C2-KIT_v105 schematics which is needed for the EN_GATE pin. This means I have to use a different spare GPIO, and find in the code where to change it. Or... hardwire it and use the SPI interface to perform RESET_DRV8301. Any suggestions?

  • 0
    TI__Intellectual 1345 points
    Hi Kurt, it will be easier for you to hardwire the EN_GATE and use the GATE_RESET command in SPI to perform any clears/resets. There should be only a couple of cases where you will need a physical EN_GATE toggle to reset the part.
    Have you checked the SPI setup can sucessfully write and read back a changed config value to the DRV8301 ?
    What was the resolution on the 4.5V voltage reading ?
  • 0 in reply to Anuj Narain
    Prodigy 130 points
    Anuj-

    1.) Thanks, I will try the software GATE_RESET method.
    2.) The 4.5V reading- I had the isolation probe/scope connected across GL_A and SL_A without a shunt resistor or a reference to ground. Once I referenced it to ground, I started getting 9.5V signals.

    Thanks,
    Kurt