【摘要】 研究了基于FPGA控制的SDRAMModule在移动通信的MIMO技术实验系统中的应用,主要介绍了MIMO实验系统硬件平台、SDRAM的特点及其控制器软核的VHDL设计,以及USB2.0方式的数据传输。通过对页面读写、突发读写、集总和定时刷新等工作方式的灵活运用,很好地解决了MIMO无线通信中的海量数据高速缓冲问题。经MIMO实验系统验证表明,SDRAM控制器的数据缓冲方案高效可行,适用性突出。更多还原

【Abstract】 The wireless communication system is up against various engineering challenges. For both the transmitted and the received data processing, fast-access memories with large capacity are required in experimentation systems with Multiple-Input & Multiple-Output technique. SDRAM is a kind of random access memory with large-capacity and high-speed, but many Microprogrammed Control Units or normal Digital Signal Processors cannot directly interface with SDRAM due to the differences between control signals. Based on FPGA(field programmable gate array), a design method of SDRAM controller with USB interface to computer is proposed . Large-capacity data access is implemented at high speed by the controller circuit, which is working effectively in our MIMO experimentation system.更多还原