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| 摘要: |
| 为满足嵌入式工业控制计算机通过PC/104总线实现对具有SPI接口的程控放大器控制的需要，在研究了PC/104总线和SPI总线通信协议的基础上，首先介绍了SPI总线和PC/104总线的结构和工作时序；提出基于FLASH架构FPGA芯片的PC/104总线转SPI总线接口设计方案，给出了SPI控制状态机的设计思路，并用ModelSim仿真软件进行了仿真验证，最后通过仿真和实验验证了设计方案的正确性和可行性。 |
| 关键词: SPI 接口 PC/104 总线 FPGA 接口设计 |
| DOI： |
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| Design of SPI Interface Based on PC/104 Bus and FPGA |
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TANG Dai-bin， ZHU Wei-min
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| Abstract: |
| In order to satisfy the need that Imbedded industrail computers through PC/104 bus control programmed amplifiers with SPI interface, the paper researches the communication protocols of PC/104 bus and SPI bus, proposes the interface design scheme of the SPI bus converted from PC/104 bus on the basis of the nonvolatile flash framework of the FPGA chip and design ideas of the SPI control state machine, verifies the validity and feasibility of the design scheme through simulation and experiment. |
| Key words: SPI Interface PC/104?Bus FPGA Interface Design |
