【摘要】 本文设计的HPE-100频率计将AT89c51微处理器的智能特性与高速FPGA的可编程性相结合,采用硬件逻辑与软件指令巧妙配合的智能闸门控制方式,实现了0~100MHz范围内的等精度无档切换测量功能,精度可达10-7。更多还原

【Abstract】 This paper describes an intelligent and equal precision cymometer HPE-100.It combines the intelligent character of AT89C51 SCM with the programmable character of high speed FPGA and adopts the intelligent strobe controlling way by means of the cooperation of hardware logic and instructions.This product whose precision is 10^-7 can realize the functions of equal precision measurement without shifting in the range of 0¹00MHz.更多还原