Hi ,
We are suffering a stranger issue about slave rail can’t fault down.
That’s not a single rail. there are still some rail has the same phenomenon, but some of rail works normal.
One of case, we want to shutdown rail#9 when rail#10 fault. So, we set rail#10 fault shutdown slave for rail#9.
When we try to shutdown rail#10 as UV fault, but rail#9 still was not been shut down.
Those enable signal is output from UCD9090.
I also checked the enable signal for rail#9 by using manual GPO function. It can be controllable. We can separate H/W configuration.
