基于MCS-51单片机调频调相信号发生器 功能:A路能产生2~200HZ/分钟频率可调 @ B路能产生同A路相位滞后0~180读可调 @ 可以键盘设定频率和相位 @ 可以显示频率和相位 -Based on MCS-51 single-chip FM phase modulation signal generator function: A road can have 2 ~ 200HZ/minute frequency adjustable @ B road A road c