Description: This system based on single chip microcomputer port and set the timer/counter, light and digital tube, the combination of simulation of traffic lights at an intersection, with the beginning and the end button K4 control traffic lights, the timer achieved time accumulative total output in the form of 8421 BCD code, choose decoding circuit according to the output of the digital output is converted to a digital display device need logic, and a certain current, so that the countdown digital pipe display time.
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王婷婷标准_交通灯_状态2_K4开始与结束，有显示\STARTUP.A51
............................................\STARTUP.LST
............................................\STARTUP.OBJ
............................................\标准_交通灯_状态2
............................................\标准_交通灯_状态2.c
............................................\标准_交通灯_状态2.hex
............................................\标准_交通灯_状态2.lnp
............................................\标准_交通灯_状态2.LST
............................................\标准_交通灯_状态2.M51
............................................\标准_交通灯_状态2.OBJ
............................................\标准_交通灯_状态2.plg
............................................\标准_交通灯_状态2.uvopt
............................................\标准_交通灯_状态2.uvproj
............................................\标准_交通灯_状态2.__i
............................................\标准_交通灯_状态2_uvopt.bak
............................................\标准_交通灯_状态2_uvproj.bak
王婷婷标准_交通灯_状态2_K4开始与结束，有显示
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