摘要
描述了一套基于单片机,能实现对电脑USB外围设备进行计时控制,同时兼具实时时钟显示功能的电路系统设计。很好地解决了长期困扰电脑使用者不能计时控制USB外设的难题。根据89S52单片机所具有的三路独立定时器资源,本设计对USB定时控制功能和计时功能进行了合理规划,相对于其它同类的设计仅束缚于两路定时器甚至一路有了很大的提高。本论文从设计方案、软硬件设计实现等多方面对设计进行了详细的阐述。实验结果证实本设计能满足各项设计功能并达到很好的效果。
The whole design of a universal time controller for USB equipment based on MCU is presented. It contains a real-time clock which can record the total time using the USB equipment. The system has been designed according to the MCU 89S52 itself, including three independent timers inside. The detailed design including the working principle, software and hardware implementation has been presented. The final test shows good results.
出处
《电子器件》
CAS
2008年第2期631-633,共3页
Chinese Journal of Electron Devices
