嵌入式微处理器与SDRAM的接口设计与实现

Design and Implementation of SDRAM Interface for Embedded Mircoprocessor

嵌入式微处理器与SDRAM存储器的接口设计是嵌入式开发系统中非常重要的一个环节。为了实现ARM与SDRAM的数据控制与传输,设计了以基于ARM920T内核的EP9315芯片与MT48LC4M32B2TG接口,具体介绍了接口电路设计,EP9315对SDRAM的寻址逻辑,编程初始化SDRAM的实现,最后在硬件平台上调试成功。

The design of interface between embedded microprocessors and SDRAM memory is a very important process in the development of the whole embedded system. In order to control and transfer the data between ARM and SDRAM, using EP9315 with a ARM920T core and MT48LC4M32B2TG,the design of interface circuit, the addressing logic from EP9315 to SDRAM,the program implementation of SDRAM initialization,and the interface works correctly and successfully in the platform of EP9315 are introduced.