实现了一种基于FPGA的绝对式码盘智能接口的设计,用以进行绝对式编码器和DSP之间的通信。此接口根据FPGA模块化设计的特点,把整个设计任务划分为若干功能模块,分别对这些模块进行设计,最后把各个功能模块进行综合,以完成整个设计。实验结果表明,该接口基本可以替代价格昂贵的专用接口芯片,降低产品成本。 The design of an FPGA-based absolute encoder intelligent interface is realized for the communication between the absolute encoder and the DSP. According to the characteristics of FPGA modular design, this interface divides the whole design task into several functional modules, designs these modules respectively, and finally integrates each functional module to complete the whole design. Experimental results show that the interface can replace the expensive special interface chip, reduce product cost.