抑制设备中单片机控制系统噪声的几点措施

在进行设备单片机控制系统的调试、维修时,必然会遇到各种各样的噪声。为了揭示噪声的根源,用实验的手法,观察、分析单片机控制系统输入、输出电路关键点电压及噪声的波形,并根据实际的需要,试验出用硬件抗干扰技术与软件抗干扰技术去过滤电路噪声的方法。实践中,使用这些措施去抑制设备中单片机控制系统的噪声,都达到了事半功倍的效果。

Some Measures of Preventing Single-chip Microcomputer Control System Noise in Equipment

It is inevitable that experts will not meet various noise to maintenance and debug in the single-chip microcom- puter system of equipment. In order to reveal the source of noise ：The noise＇ s waveform in input and output control circuit of single-chip microcompntercontrol system with the experimentals is observed and analyzed, according to need in the actual. Experts have test out the method with anti-interference technology of hardware and software combining to filter noise in digit- al circuits, the measures have adopted to suppress the noise in the single-chip microcomputer system of equipment, it has reached a multiplier effort.