Tool/software:
yellow=chip select, magenta=clock, cyan = MOSI
yellow=chip select, magenta=clock, cyan = MISO
I have the DRV8323RS connected to SPIc on a 28388D. All the requisite bit settings have been done to make GPIO's50 -53 in to the SPI functionality. Also, the MISO line has a pull up resistor on it. Wave forms measured on the Chip select, clk and MOSI lines are attached, I've also included on with the MISO line.
I'm sending a simple read of register 6 since I want to modify the gain setting of the part, it's easier to read the register, modify the desired bits and write it back.
However, I get nothing from the DRV chip...baud rate is plenty slow for the chip to handle. The logic lines are going to 3.3 volts for high.
Triple checked the wiring. The DRV chip is enabled. This is another of those "hair pulling" events and I'm running out of hair...
What did I miss???
