基于FPGA的固态硬盘高速桥接算法及实现

Implementation of Solid State Disk High Speed Bridge Algorithm Based on FPGA

摘要:

为实现CCD相机高清图像数据的处理, 设计了一种基于FPGA的高速桥接平台, 提出硬件模块的实现方案。在FPGA内部, 使用Verilog HDL对底层电路进行描述; 详细阐述了基于FPGA的SATAⅡ接口管理实现方案, 给出主机端上电初始化模块和设备端上电初始化模块的状态机设计; 说明利用DRP (Dynamic Reconfiguration Port)使SATAⅡ接口向下兼容SATAⅠ接口的实现方法, 设计了速度协商状态机。最后在实验平台上通过板级调试, 固态硬盘和主机成功通讯, 满足SATAⅡ接口的速度要求, 可以用作高清图像处理算法的移植平台。

Abstract:

In order to realize encryption and decryption of Solid State Disk, the high speed bridge platform was designed based on FPGA. The hardware modules were described and the circuit was realized by using Verilog HDL. How to implement SATAⅡ interface management based on FPGA was described in detail and then the speed negotiation and power on initialization state machine were designed. What’s more, the SATAⅡ can be backward compatible with SATAⅠbased on DRP (Dynamic Reconfiguration Port) interface. Finally the board level debugging is passed on the experiment platform and the communication is sucessfully established between solid state disk and PC. The requirements of SATAⅡ speed are meet and encryption/decryption algorithms can be transplanted.