For PWM3 if we use CH5 only and CH6 did not used, how to connect CH6 to avoid fault report ?
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How many channels are you going to use?
If you still want one fails all fail function: 1.connect CH5 and CH6 together and change the duty cycle of PWM3 to get the same current; 2. CH6 connects a resistor to GND;
If you don't need one fails all fail: Connect a pull-up resistor to fault pin to make sure pull-up current>1mA.