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DRV8711 Interface Problem

Tulan Kansagara
Prodigy 10 points
Other Parts Discussed in Thread: DRV8711

Hey,


I am working on Interfacing MCU(PIC16F1936) and DRV8711. I made DRV8711 Module as TI describe.

I also implemented code for SPI on PIC16F1936 and also configure all registers of DRV8711. But after all i can not see output on that module.

Also check CLK,DI, CS pins on CRO they working fine.

Code is shared via this link

https://drive.google.com/folderview?id=0B22IBceCSgKrczF2bXFpa1FJdFk&usp=sharing


Please check and let me know in case of any mistake is made.

  • 0
    TI__Guru** 114905 points

    Hi Tulan,

    Can you provide screen shots of the SPI transaction? This is sometimes easier to debug than working through code.

    Also, please try reading a few registers to determine if the SPI is communicating properly. I suggest register 0 since the default settings are easy to determine proper operation.

    Once you have confirmed a SPI read is working, please check the status register 0x7. We have had reports that writing all zeroes to the status register upon power up will clear all faults and allow the device to operate.