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本系统基于MCU8051和FPGA的控制平台,采用实时采样与等效采样两种方式实现了对频率为10Hz～10MHz的波形数据的实时采样,存储与回放。做到垂直灵敏度含1v/div,0.1v/div和2mv/div三档,扫描速度含20ms/div,2Uv/div,100ns/div三档。本系统的频率测量精度达10-3级,电压测量精度达0.05v。本系统自带100KHz方波信号为系统测频时钟与电压基准源的进行自动校准,此外,本系统还实现了对波形数据的单次触发存储与调出功能和AUTO显示功能,而且系统的显示输出设备采用128*64点阵液晶,3*8键盘为输入设备,操作简单,界面友好。
The system based on MCU8051 and FPGA control platform, using real-time sampling and equivalent sampling in two ways to achieve the frequency of 10Hz ~ 10MHz waveform data real-time sampling, storage and playback. Do vertical sensitivity with 1v / div, 0.1v / div and 2mv / div third gear, scanning speed with 20ms / div, 2Uv / div, 100ns / div third gear. The system’s frequency measurement accuracy of 10-3 level, voltage measurement accuracy of 0.05v. The system comes with 100KHz square wave signal for the system clock frequency and voltage reference source for automatic calibration, in addition, the system also achieved a single trigger waveform data storage and recall function and AUTO display, and system display Output devices using 128 * 64 dot matrix LCD, 3 * 8 keyboard as input device, simple operation, friendly interface.