2018-09-11 02:05 AM
Hi,
I designed a board integrating a High Side L9733.
I try to communicate with the switch through SPI but I miss some informations.
1- Can you confirm that we can use a 1.8V SoC as master?
I fixed VDO to 1.8V. I didn't find nominal range for VDO. (only absolute max rating -0.3V to 7V)
In my understanding, VDO allows me to set the VIH/VIL transition levels.
Attached to this post, the hardware integration of the L9733
2- What are the SPI write and read programming model of the L9733?
Master SPI config: 16b, CPOL=1, CPHA=1, LSB first.
If I assert CS (0) and write 0xAC00 or 0xAC01 and deassert CS (1), I receive always the same fault register value.
Thank you for your support.
Best regards,
Raphael