8253汇编实验_17281120_韩铖山

说明：  学生在课堂上仅仅通过了理论的学习，还需要对所学知识有个直观而生动的了解，这个实验可以使学生更深刻的理解8253A定时/计数器的各种工作方式的特点；通过观察实验波形，可直观地了解这几种工作方式的异同。
(Students in the classroom only through the theory of learning, but also need to have an intuitive and vivid understanding of the knowledge, this experiment can enable students to better understand the 8253A timer / counter of the characteristics of various ways of working; By observing the experimental waveform, the similarities and differences of these working modes can be intuitively understood.)