VFAM Operating Procedure:
Connect the external clock signal to the VFAM's ext adv in port.
Connect the VFAM's ADV OUT port to the DFAM's ADV/CLOCK port.
Press the DFAM's advance button to switch to its designated first step
and press the DFAM's run/stop button to keep it ready to start at any time.
Press the VFAM's run/stop button to officially start driving the DFAM step sequence.
Pressing the VFAM's stop or rst button will stop the stepping, and through the adv out,
quickly trigger the remaining steps to return the DFAM to the first step.
In the state of playing the sequence, you can also press the set 1 button at any time
to specify in real-time what you consider to be the first step.