摘要
给出了一种基于FPGA最小系统的PROM扩展方法,利用对FPGA的配置用SPI串行接口Flash芯片的控制,实现了Flash芯片的重复使用。该方法在FPGA最小系统的基础上无需增加任何其他器件,简化了设计、减少了FPGA的管脚开销。文中还给出了利用FPGA控制Flash的软件设计过程,并给出了仿真波形图。通过ChipScope软件的观测结果,证明了方法的正确性。
An extension of the PROM based on the minimum system of the FPGA is proposed in this paper. By controlling the FLASH chip with the SPI interface used for configuring the FPGA, the iterative usage of the flash chip is realized. The solution uses no other chips but the minimum system of the FPGA, and thus can predigest the de- sign and decrease the spending of pins. A software design process of controlling the FLASH by the FPGA is also de- scribed, and the simulation wave of the design process is by the observation of the ChipScope software. given. Finally, the correctness of the solution is verified
出处
《电子科技》
2013年第4期126-128,共3页
Electronic Science and Technology
