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DRV8823: Unable to control the motor using DRV8823 module

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Part Number:DRV8823

Hi,

I am trying to control a DC motor using DRV8823 module but I cant it working. 

VM = 12.0 V

Rsense = 0.66Ω, Vref 3.33V ( I shorted V3P3 with ABVREF and CDVREF) 

I used same capacitors as the one from typical application diagram. I have also shorted SLEEPn pin to V3P3 pin, so that it is always high. RESETn pin is controlled by GPIO from the TMS320f28335 (It is always high).

I am keeping SSTB pin as high all the time. I am sending 0xFFF0 and 0xFFF8 over the SPI as mentioned by  in this thread

This is my probed SPI message. 

1 - Yellow = SSTB

2 - Blue = SCS

3 - Magenta = SDATA

4 - Green = SCLK 

I probed VCP relative to VM and I am seeing 10 V. 

Should I be seeing any voltage between AOUT1 and AOUT2 or any other motors? 

Thanks 


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