In this paper, the technic of SoPC to accomplish multi-channel digital impulse signal generator is adopted, which consists of FPCA and related interface circuit, the Nios II soft kernel is integrated to FPGA and the system on chip (SoC) is formed, several special digital signal are provided and pulses are sent with different channel, number and frequency through computer software. The project which can provide digital impulse with different channel, number and frequency is credible and accurate after validating.%介绍了一种采用SoPC技术实现多通道数字信号发生器的方法,系统由FPGA及相应接口电路组成,将Nios Ⅱ嵌入式软核CPU集成到FPGA中,构成片上系统(SoC),可以产生多种特定的数字脉冲信号,能够通过上位机软件控制实现不同通道、个数和频率脉冲信号的输出.经验证,介绍的方案稳定精确,能够提供通道、频率和个数可控的数字脉冲信号.
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