Hi,
I have a non-repetitive problem with one of the outputs.
Normally, the device configures the outputs correctly with the value written in SDI.
But sometimes one of the outputs latches up in an open state so the led is always lighting.
In this state, I can't change the output by writing new parameters in the SDI. The two other outputs work correctly but the one latched up keeps the state.
The only solution to unlatch the output is to disconnect the power from that output (not the VCC pin).
I add the schematic to clarify the connections.
I can't detect when that situation occurs, so how can I solve it?