摘要
介绍了新型的单片机 P87L PC764 ,分析了以其模拟比较器为基础 ,利用测量脉宽进行交流电源有效值及其频率测量的技术方法 ,介绍了一种基于 P87L PC764的交流电源记录仪的组成及其功能。该芯片除兼容 5 1系列单片机的功能外 ,具有内置的 WDT模拟比较器等功能部件 ,其中模拟比较器具有中断功能。
In this paper, a new style MCU P87LPC764 was introduced. There are two analog comparators in the MCU P87LPC764.We use a method of measuring pulse width to calculate the effective value and frequency of AC power source based on them.On this condition, the AC power source recorder based on the MCU P87LPC764 and its structure and function were described.Addition to compatible functions of 51 family MCU,the chip has WDT and analog comparator with interrupt function.
出处
《现代电子技术》
2004年第16期7-9,共3页
Modern Electronics Technique
