这是一个产品完整的代码，使用80C196 CPU和8253定时器以及AD574进行电压，电流的采集，每个电网周波采集32点，计算电压电流的有效值，功率，无功功率，功率因数，软件积分电度等-The code is production code that use 80c196 cpu and 8253 timer and ad 574 to　sample the voltage and current data, 32 point per cycle of 50/60HZ ,to caculate the voltage and the current, power,reactive power and etc