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Position: Home > Articles > SDRAM controller's FPGA design and verification Journal of Chinese Agricultural Mechanization 2013 (5) 238-242

SDRAM控制器的FPGA设计及验证

作  者:
张富贵;陈宇熠;吴雪梅;刘国志;沈明明
单  位:
贵州大学机械工程学院
关键词:
变量喷雾;SDRAM;FPGA;控制器
摘  要:
为了在基于数字图像处理的变量喷雾系统中方便地对图像数据进行缓存,设计了一个基于FPGA的具有数据、地址和控制总线接口的SDRAM控制器。该控制器采用有限状态机的方法进行模块化设计,包括初始化状态机和读写命令控制状态机,并在命令状态机中实现了SDRAM的自动刷新操作。在此基础上,对设计进行了仿真测试和FPGA硬件实现。结果表明:该控制器最高工作频率可达135MHz,具有接口简单、存取速度高的特点,可以较好满足变量喷雾系统中图像数据实时存取的要求。
译  名:
SDRAM controller's FPGA design and verification
作  者:
Zhang Fugui;Chen Yuyi;Wu Xuemei;Liu Guozhi;Shen Mingming;Guizhou University;
关键词:
variable spray;;SDRAM;;FPGA;;controller
摘  要:
In order to access image data in digital image processing based variable spray system,A SDRAM controller with data,address and control bus interface is designed using FPGA chip.Finite state machine and modular design was used,and the controller was divided into the initialization state machine and the reading and writing command control state machine.Modlesim and quartus was used for the design verification,the results show that the controller can work at a max frequency of 135 MHz.Because of its simple interface and high speed access characteristic,the controller can meet the variable spray system image data real-time access requirements.

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