Scope of work
The CCU6 unit generates an interrupt every 500 ms and increments a
counter in its Interrupt Service Routine (ISR).
Timer T12 of the CCU6 unit generates an interrupt on a "period match" event
every 500 ms. Inside the ISR, a counter variable is incremented. The LEDs
toggle based on the value of the counter:
›
1st LED: counter % 4 == 0
›
2nd LED: counter % 4 == 1
›
3rd LED: counter % 4 == 2
›
4th LED: counter % 4 == 3
2
2019-10-17
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