本文主要介绍了基于PCI 总线的以多单片机和DSP 为控制芯片的多轴运动控制系统的设计，主要包括其硬件方面的设计。详细的介绍了运动控制卡和接口卡的各个模块功能电路，包括DSP 与PCI 的通信电路，以及DSP 的辅助电路包括JTAG 测试接口电路、供电电路、时钟电路，存储器扩展电路等。关键字: 运动控制；PCI；DSP；通信Development of Multi-axes Motion Control System based on DSP Processor Deng Xinwei1, Peng Wuliang2 (1. Shenyang Ligong University, Liaoning Shenyang 110168; 2. Northeastern University, Liaoning Shenyang, 110004) Abstract: This paper have expatiated the systematic design of motion controller bases on PCI which uses multi-MCUs and DSP as the core processors, mainly including the hardware design. It introduces several module function circuit of the mobile control and interface chips, including the DSP and PCI communication circuit, the accessory circuit of the DSP, JTAG test interface circuit, power circuit, clock circuit and the memory extension circuit.Keywords: Motion Control; PCI; DSP; Communication