摘要
该文介绍了一种基于可编程片上系统（PSo C）的触摸屏电子琴系统的设计。与传统利用单片机的定时器中断实现的电子琴系统不同,该系统使用低成本低功耗的PSo C4作为主控芯片,利用片内提供的高精度PWM模块进行频率控制,实现了系统的小型化、低能耗化、高精度化,在此基础上还具有易学易玩的特性,可替代普通电子琴完成演奏工作。经过实物测试,该系统乐音纯正且携带方便,颇具应用价值。
The design of electronic organ system with touch screen is presented in this paper, which is based on Programmable Sys-tem on Chip（PSo C）.The system which is far different from the traditional method depending on timer＇s interrupt the MCU pro-vides, select the low-cost and low-power consuming PSo C4 as CPU.Benefiting from that the high precision PWM module PSo C4 in-tegrated internally is used to control the frequency of electronic organ, the system is distinguished for its mini-type, low-powerand high-accuracy. In addition to the excellent feature above, the system is accessible to learn and enjoy easily and replace aver-age electronic organ to accomplish meritorious performance. Hardware test shows the system is of great value due to the pure musi-cal quality and portable convenience.
作者
陈岩
朱晓梅
CHEN Yan, ZHU Xiao-mei （College of Electronics and Information Engineering, Nanjing Tech University, Naning 211816, China）
出处
《电脑知识与技术》
2015年第5期213-214,218,共3页
Computer Knowledge and Technology
