Description: By the 80C51 Timer 1 by way of an internal work, that is, as 16-bit timer, T1 overflow interrupt every 0.1 seconds once. P1 port P1.0 ~ P1.7 respectively, then the light-emitting diodes L1 ~ L8. Requested by the program to simulate one cycle of lights. Lights change pattern can design their own. Required to give change in pattern is: ① L1, L2, ... L8 reluctant to light ② L1, L2, ... L8 reluctant to go out ③ L1, L2, ... L8 cross off 8 times. ④ L1, L2, ... L8 all bright, all off 8 times. The time interval of 0.3 seconds. Let light-emitting diode display according to the above rule cycle continues.
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