摘要
为实时控制并显示宽带频率源的当前频率,设计了一种基于单片机C8051F340、LED显示器和4*4矩阵键盘的显控电路。单片机通过接收矩阵键盘送来的频率控制码,通过并口输出控制频率源改变频率,并控制LED显示屏给出实时频率。主要给出了各功能单元的硬件设计原理,原理样机的实测结果验证了该显控电路的有效性及可靠性。
In order to monitor and display in real time the current frequency of wideband signal source,this paper designs a monitoring and display circuit based on MCU C8051F340,LED and matrix keyboard of 4 ＊ 4 matrix keyboard.The MCU receives frequency control words via matrix keyboard, controls signal source to change its output frequency, and then manipulates LED to display current frequency.The design principle of hardware is presented. The results of prototype test prove the effectiveness and reliability of this circuit.
出处
《无线电工程》
2015年第5期73-75,共3页
Radio Engineering
作者简介
王扬 男，（1990-），硕士生。主要研究方向：射频收发技术。
游福初 男，（1963-），研究员。主要研究方向：微波电路设计。
