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在工程和实验研究中，时常要求动态地提供连续的长周期或非周期的复杂信号。为满足这一需要，本文设计并研制了双ＲＡＭ任意波形发生器（ＡＷＧ）微机插卡。从直接数字频率合成出发，介绍了该ＡＷＧ插卡的总体设计，详细描述了本ＡＷＧ电路的硬件实现及其特点。用普通的静态存储器构成的两个大容量双口ＲＡＭ，实现了不间断输出的情况下波形的动态更换；采用直接存储器传送，波形数据更换快；ＩＳＡ总线微机卡式仪器，通用性好，有丰富的软硬件支持，性能价格比高。
In engineering and experimental research, it is often required to dynamically provide continuous long or non-periodic complex signals. To meet this need, this paper designed and developed a dual-RAM Arbitrary Waveform Generator (AWG) microcomputer card. Starting from the direct digital frequency synthesis, the overall design of the AWG card is introduced, and the hardware implementation and characteristics of the AWG circuit are described in detail. The use of ordinary static memory composed of two large-capacity dual-port RAM, to achieve uninterrupted output waveform waveform dynamic replacement; using direct memory transfer, waveform data replacement faster; ISA bus microcomputer card instrument, versatility, there Rich hardware and software support, high cost performance.