提出一种基于80C L96KC 单片机外设事务服务器 PTS 的多通道交流采样方法,并采用频率跟踪技术来消除系统基波频率波动的影响。本方法可大大缩短 A/D 转换时间,减少软件开销,从而提高 CPU 的事务处理能力,在实际中具有一定的实用价值。 This paper presents a multi-channel AC sampling method based on PTS of 80C L96KC MCU peripheral transaction server, and uses frequency tracking technology to eliminate the influence of system fundamental frequency fluctuation. The method can greatly shorten the A / D conversion time and reduce the software overhead, so as to improve the transaction processing ability of the CPU and has certain practical value in practice.