Well, i got a power converter solution built upon mkv31f128.
But there is a problem-while booting pins that controlls H-brige ringing. That causes periodically the system blow and about 20$ loss to repair it. And of course we can't sell such a product.
So i have a question: are there any fuses/registers that controls states of pins in the boot time before been configured? (at least I can remember such tool on other vendors)
P.S.: Now we solves that problem by introducing time delay before power up power stage but it cost additional money.