The main components of the traffic light controller at the intersection are: 8255, 8253, 74LS138, LED diodes (several), LED digital tubes (several red, yellow and green). Assuming that the system can
The NUCLEO-G071RB development board used in this experiment is provided by https://www.stmcu.com.cn/index.p%20...%20/261/layout/product https://www.stmcu.com.cn/index.p ... /261/layout/product. For mo
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;Pulse counting program, used Count the number of pulses per minute;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;Because GATE=1 and TR0=1, Timer0 starts