DRV8306EVM: Motor doesn't rotate

Hello Hideki-san,

We will disregard this thread. Please come back with any other questions!

Thanks,

Matt

Hi Hideki-san,

We have looked into your e2e post info and have the following questions and comments:

Questions/Requests:

1. We need to get a full view of how the jumpers are connected and how the switches are toggled 
   1. Can we have a picture of the topside of the EVM, with your customer's wiring and switch/jumper settings?
2. Items to check:
   1. how are you supplying 30kHz PWM? is it through the on-PCB TLC555 timer and potentiometer? 
      
      1. or are you providing it through an external PWM generator through J2 jumper? 
      2. can you verify that the signal is reaching the device by probing the test point next to the DRV device? 
   2. nBRAKE switch should be in the 'RUN' position. Please verify signal on test point next to DRV
   3. EN switch reported to be on -> can you help verify this at the DRV test point
   4. Hall Sensors
      1. if you manually rotate the motor, do you see the hall signal square waves at the hall test points? What does this look like for all 3 phases hall inputs? 
      2. what hall sensor part are you using? 
      3. there are a few settings on the EVM to consider, such as the 'Hall Select' switch, 'Hall Power' and 'Hall Ground' jumpers, 

The device doesn't seem like it's faulting, and it appears to be powered on.
So the next step is to verify that it is receiving the proper input signals (PWM, EN/BRAKE, and Hall signals) 

General Resources: 

• EVM user guide: https://www.ti.com/lit/ug/slvubb7/slvubb7.pdf (for references to figures and documents) 
• Test Points for input signals (page 4 of EVM user guide) 

• Test Points for Hall signals
  
• Switches and Jumpers (page 5-6 of EVM user guide) 

Thanks and Best Regards,
Andrew