高精度时钟芯片的单片机控制打铃系统设计

Design of Single-Chip Microcomputer Control Bell System with High-Precision Clock Chip

阐述了以高精度时钟芯片SD2058作为基准时钟源的单片机控制上下课打铃系统构成、原理图设计、控制程序设计,探讨了SD2058与其它时钟芯片比较所具备的优势及系统精度。

By interpreting the structure of the bell system for adding and dropping classes which is controlled by single-chip microcomputer with high-precision clock chip SD2058 as reference clock source,its schematic diagram design and control program design,the advantages of SD2058 and the system precision compared with other clock chip were discussed.