摘要
数字电位器由于可调精度高,更稳定,定位更准确,操作更方便,数据可长期保存和随时刷新等优点,在某些场合具有模拟电位器不可比拟的优势。论述对数字电位器ADN2850的一种方便的控制方法,通过计算机上的串口直接对ADN2850进行写入和控制。该方法简洁、高效,明显提高了调试效率。给出用Verilog HDL实现该方法的关键程序,该程序已经通过前仿真和板级调试,达到了预期的效果。
Digital potentiometer has unparalleled advantages compared with simulative potentiometer, for its high precision and stability,more accurate positioning,more convenient operation, and data can be stored for a long time or be refreshed at any time. A convenient method to control digital potentiometer ADN2850 is mentioned, using the serial port to control ADN2850 directly. This method is concise and efficient, which improves the debugging efficiency significantly. The key part of the Verilog HDL procedure of this method is presented. The simulation and the board debugging achieve the desired results.
出处
《现代电子技术》
2009年第8期122-124,共3页
Modern Electronics Technique
