The hardware design mainly includes signal detect circuit, electrical level translation circuit, microcontroller interface circuit, data communication circuit and so on.
在硬件电路设计方面完成了信号检测电路、电平平移电路、单片机接口电路以及数据通信等电路的设计。
A frequency translation circuit (172-188) abuts the multiple channel bandpass filtered analogue signals in the frequency domain without any guard bands between adjacent channel signals.
频率平移电路(172 ~ 188)使得经过带通滤波的若干多通道模拟信号在频域中接邻，而在相邻通道信号之间没有任何保护频带。
It gives comparison among some methods which are often adopted in the interfacing circuit, and introduces a chip MAX232 of level translation and its application method in detail.
对于硬件接口电路中常用的一些方法进行了简要的比较，并介绍了电平转换芯片MAX232及其应用方法。
应用推荐