摘要
在高职单片机课程教学单元中,有一个重要的项目就是多位数码管的显示控制,本文采用了一种利用移位寄存器芯片74HC595来实现8位数码管的显示控制,通过实验证明,仅需占用单片机三根I/O口线,大大节省了单片机的资源。文章对软硬件电路做了详细说明,实际应用表明,此方法连线简单方便,成本低廉。
In the teaching of MCU Course in higher vocational education, there is an important project that is used to research a number of digital tube display control. This paper adopts a display control using the shift register chip 74HC595 to realize the display and controlling of 8 digital tube, through the experiment, only three MCU I/O are need that greatly saves the resource of MCU. This paper makes a detailed description on the hardware circuit, and the practical application shows that this method has the advantage of easy, convenient, and low cost.
出处
《科技广场》
2013年第5期174-176,共3页
Science Mosaic
基金
江苏省高等学校优秀教学团队(机械电子教学团队)
苏高教[2009]42号
