研制了一種以80C196單片機(jī)加CPLD雙片結(jié)構(gòu)實(shí)現(xiàn)的16位絕對(duì)式光電軸角編碼器，采用
80C196實(shí)現(xiàn)軟件插值細(xì)分、代碼轉(zhuǎn)換、校正等，采用CPLD代替?zhèn)鹘y(tǒng)的外圍集成電路，并且給出了系統(tǒng)硬件組成和軟件控制流程。
關(guān)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