本系统以STM32控制器为核心，配合FPGA，采用等精度测量法，通过程控放大器对不同输入电压信号进行分档，实现宽带小信号放大。分档放大后的信号经过整形电路，通过FPGA对其边沿进行检测计数能够实现对正弦波的测周与测频，方波时间间隔的测量，矩形波占空比的测量，并采用彩色TFT进行显示测量信息。对于输入的高频信号能够在低于10mv有效值准确完成电路的放大和测频。-The system with STM32 controller as the core, with FPGA, using equal

ADC采集及编程，可以很好的测量电压和频率什么的。很好用，(ADC acquisition and programming, you can very good measurement of voltage and frequency. It's very easy to use.)

本资源包名为stm32_12864.包含stm32的固件库和相关的函数，也有电压的基本例子。可供测量。(This resource package is called the firmware library and related functions of the stm32_12864. containing STM32, and also has a basic example of the voltage. It is available for measurement.)