proteus下实现的利用8255扫描矩阵式键盘

[{"title":"（6个子文件48KB）proteus下实现的利用8255扫描矩阵式键盘","children":[{"title":"8255keyboard","children":[{"title":"keyboard.DSN <span style='color:#111;'>148.05KB</span>","children":null,"spread":false},{"title":"keyboard.exe <span style='color:#111;'>1.78KB</span>","children":null,"spread":false},{"title":"keyboard.asm <span style='color:#111;'>2.25KB</span>","children":null,"spread":false},{"title":"LastLoadedkeyboard.DBK <span style='color:#111;'>169.04KB</span>","children":null,"spread":false},{"title":"keyboard.obj <span style='color:#111;'>1018B</span>","children":null,"spread":false},{"title":"keyboard.PWI <span style='color:#111;'>2.15KB</span>","children":null,"spread":false}],"spread":true}],"spread":true}]