BOOSTXL-DRV8320S: TM4C123GH6PM development board and DRV8320S motor driver not communicating with SPI

Hello Ali,

Have you reviewed our SPI FAQ: LINK?

Thanks,

Matt

Hi Matt,

The link you sent is also available in the datasheet of the DRV8320S entegre, and I tried this structure with the MSP430F5529LP development board and it works. When I look with the oscilloscope, there is no difference between the values I send, but on the reading side, the RX pin of the TM4Cx development board stays low all the time.

What are the places I should pay attention to here?

What is the probability that the problem is related to the frequency settings?

While the MSP430x is running at 4 Mhz, the TM4Cx is running at 16 Mhz.

Thanks,

Hi Ali,

Is 16MHz the SPI frequency? I think the DRV832x SPI communication will only function up to 10MHz.

See if you can slow down the SPI clock to see if it makes a difference.

Thanks,

Matt

Hi Matt,

Clock speed of the processor with 16Mhz, SPI communication speed set to 1Mhz
Could you move the thread to the TM4C123x forum? To not open another topic.

Thanks,