研制了一種以80C196單片機加CPLD雙片結構實現的16位絕對式光電軸角編碼器，采用
80C196實現軟件插值細分、代碼轉換、校正等，采用CPLD代替傳統的外圍集成電路，并且給出了系統硬件組成和軟件控制流程。
關鍵詞：光電軸角編碼器；CPLD；80C196KC
Design of optical encoder based on 80C196KC Microcontroller and CPLD LIU Han-ping1,2, FENG Chang-you1,DING Lin-hui1 (Changchun Institute of Optics, Fine Mechanics and Physics , Chinese Academy of Sciences ,Changchun 130033,China) Abstract: The optical-electric encoder was studied and developed using 80C196KC Microcontroller and CPLD. The 80C196KC Microcontroller was used for interpolation, Gray codes switching and modifying .Its hardware circuits and software structure were respectively analyzed in detail. To minimize the size of PCB and improve high reliability, the peripheral hardware circuits were designed in a single piece of CPLD.
Key words: optical-electric encoders；CPLD；80C196KC Microcontroller