基于自顶向下的设计思想,对一可变参数数据采集控制电路进行了现场可编辑门陈列(FPGA)的设计与实现。该方案采用超高速硬件描述语言(VHDL)和模块库调用相结合的方法,实现了对数据采样率、采样深度、采样延时和采样批次的现场可编程控制。功能仿真和硬件实现均表明,设计电路性能可靠,具有较高的适应性和扩展性,满足设计需求,最大限度地提高了信号采集和处理能力。 Based on the top-down design idea, a field-programmable gate array (FPGA) was designed and implemented for a variable parameter data acquisition and control circuit. The program uses a combination of ultra-high-speed hardware description language (VHDL) and module library calls to achieve the field programmable control of data sampling rate, sampling depth, sampling delay and sampling batch. Both functional simulation and hardware implementation show that the designed circuit has reliable performance, high adaptability and expansibility, meets the design requirements and maximizes the signal acquisition and processing capabilities.