keil 4 和proteus仿真， 利用T0中断 实现1s定时,-keil 4 and proteus simulation, using the timer T0 interrupt achieve 1s,

本次课程设计的任务是利用所学知识设计一个8路模拟信号，8路开关信号的数据采集系统。用八个按键选择通道；用发光二极管显示开关量输入。-The curriculum design task is to use the knowledge to design an 8-channel analog signal, 8-way switch signal data acquisition system. Select the channel with eight buttons emitting di