This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

BOOSTXL-DRV8305EVM: using 28069M and boostxl 8305EVM

Part Number: BOOSTXL-DRV8305EVM
Other Parts Discussed in Thread: DRV8305,

I  tested the TI launchpad f28069M with Dual Motor torque control both in Spring Mode and varying the speed using the GUI. It worked well for sometime. However,  I’m facing this sudden problems with the same software and the boards:- in the setup phase, the motors jerk without any humming noise and it shows as ‘Aligning’. The Alignment shows ‘Ready’ after completion.

  • when I increase the Iq, the motor starts rotating and then stops. The blue LEd goes steady and then motors are permanently disabled.
  • it starts working when I build and debug again. 

I have changed the phase wires, measured the resistance, changed the Launchpad, but there is no change. 

I have kept the software paramters such as the Decimation factors, frequencies as per a working software. 

can you advise how to look at thye diagnostics using Debug feature of CCS Code composer? the DRV 8305 manual mentions the SPI register providing fault indicators of over temperature or voltage, but having looked at Debug i simply cannot find it in the SPIA and SPIB registers. 

What could be wrong?