【摘要】 定时器控制单元—般用模拟电路设计制作．本文作者用PIC16C54单片机设计了数字化的多功能定时控制器，可选择正或倒计数显示方式、还可分别选择秒、分、时做定时单位及重复计时。更多还原

【Abstract】 The timing cintrol unit is usually designed wity equivocal fabricate.The writer designed the digitasation multifunction timing control with the PIC 16C54 Inepiece maching.With this machine,normal or reverse display made can be choose.Secondmnubytemgiyr cab aksi be choose as the unit of timing controller.It can repeated time,too.更多还原