DRV8908-Q1: SPI read/write issue

vinod sharma

Part Number: DRV8908-Q1

Dear Team,

We are trying to read 0x07 register and we are getting 0x00FF. Also, we are not able to write on any other register & verify the same.

Please help to resolve the same. We are using SPI mode 1.

regards

Vinod Sharma

0 Ryan Kehr over 4 years ago

Vinod,

Please try to post the images you attached using the "paperclip" icon above. The images are not showing.

Is this on an EVM or a board you built yourself? Can you please share the schematic? Details on pin configurations would also help to debug.

0 vinod sharma over 4 years ago in reply to Ryan Kehr

Hi,

I have an updated image.

This is not an EVM. This is our custom board. Please see the attached schematic.

Note: GND_RTN & GND are shorted.

0 Ryan Kehr over 4 years ago in reply to vinod sharma

Thank you! I will study this and reply shortly.

0 vinod sharma over 4 years ago in reply to Ryan Kehr

Hi Ryan,

It is working now. It was some software issue. Now we took reference from EVK code. it is working fine now.

regards

Vinod Sharma

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