This practice location for shaanxi zhonggong electronics market - xian jia billion electron company, main practice project is made based on single-chip hand MCU of colored lights music box and review the programmable logic controller (PLC) related knowledge and practiced written in assembly language for microcontroller programming (MCU), ladder diagram or statements table (LAD/STC) for programmable logic controller (PLC) for programming.
實踐時間為2011.02.24至2011.03.05，參加人員***6人：實踐小組組長：楊楠；
Practice time for 2011.02.24 to 2011.03.05, participants, a total of six people: practice team leader: YangNan;
實踐小組組員：蒲昕，孫嘉亮，陳凱，張博，劉偉。
Practice team members: PuXin, SunJiaLiang, ll, ZhangBo, liu wei.
實踐項目分為兩個部分即單片機音樂盒制作，與可編程邏輯控制器的復習、編程；
Practice project is divided into two parts namely music box production, and SCM (programmable logic controller to review, programming,
其中第壹部分采用兩種方案即：硬件發生與軟件發生。
Among them the first part adopts two schemes namely: hardware occurrence and software occurred.
設計流程分為：硬件電路設計，程序流程圖編寫，程序編寫，仿真，面包板調試及焊接電路：由楊楠、孫嘉亮、陳凱完成硬件設計，蒲昕、楊楠、劉偉、張博完成軟件編程，楊楠、蒲昕完成電路仿真，面包板調試，焊接電路由六人***同完成（仿真軟件利用PROTEUS，方案2音樂程序編碼利用MusicEncode軟件完成，下載程序利用STC_ISP_V486軟件）；
The design process is divided into: hardware circuit design, program flowchart compile, programming, simulation, bread board debugging and welding circuit: YangNan, by SunJiaLiang, ll complete hardware design, PuXin, YangNan, liuwei, ZhangBo accomplish software programming, YangNan, PuXin complete circuit simulation, bread board debugging, welding circuit by six people together to achieve (simulation software USES PROTEUS, music program code utilization plan 2 MusicEncode software, download a program using STC_ISP_V486 software);
第二部分利用梯形圖進行直觀的編程，項目為花樣彩燈控制，整個過程有六人***同完成。
The second part use ladder diagram are the direct programming, projects for the figure, the whole process of lights control six people together to achieve.
將所編程序寫入STEP7-MicroWin SP6西門子S7-200專用編程軟件進行梯形圖的編程並進行梯形圖與語句表之間的轉化。
Will have programmed into MicroWin STEP7 - SP6 Siemens S7-200 special programming software ladder-diagram programming and ladder diagram and watch the conversion between statements.
實踐期間實踐小組查閱了大量的單片機與PLC資料，通過此次實踐，熟悉了單片機設計的流程，並且復習了利用匯編語言編程的相關知識，並對利用C語言對單片機進行編程做了初步的了解。
Practice during practice team looked a lot of single-chip microcomputer and PLC material, through the practice, familiar with the SCM design process, and review the use assembly language programming, and the related knowledge of using C language program of single-chip processor is made a preliminary understanding.
同時對於可編程邏輯控制器的相關知識做了簡略的復習回顧。
At the same time for programmable logic controller related knowledge of made the brief review review.
關鍵字：實踐，單片機，可編程邏輯控制器
Key word: practice, microcontroller, programmable logic controller