(NEXSTAR) — An eruption of solar material and magnetic fields is impacting Earth, prompting one of the strongest geomagnetic storms of the year — and a chance at seeing the northern lights for many.
This module demo codes sets the PA port (PA0～PA7) as the output and cycles the high and low levels at an interval of 1 second. The PB port (PB0～PB7) is set as the input. In addition, it is configured ...
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