CAJ | 학술논문

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。
위실시공제병현시관대빈솔원적당전빈솔，설계료일충기우단편궤 C8051F340、 LED 현시기화4?4구진건반적현공전로。단편궤통과접수구진건반송래적빈솔공제마，통과병구수출공제빈솔원개변빈솔，병공제 LED 현시병급출실시빈솔。주요급출료각공능단원적경건설계원리，원리양궤적실측결과험증료해현공전로적유효성급가고성。
In order to monitor and display in real time the current frequency of wideband signal source,this paper designs a moni?toring 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.