I debugged my code using the WROOM32 board. It works well.
Now I have made my own board and it runs ~ every tenth time. Nine out of ten it won't start.
Power is good. Used 1117 as elsewhere. Filter capacitors are installed.
Perhaps I need to add a capacitor or RC to the EN pin? For hardware power ...

Is the DAC buffered by operational amplifier? What is the maximum load current this allows? Thx.