支持多安全运算模块的USB3.0控制器固件设计

USB3.0接口以其高速稳定的数据传输能力，已经成为硬件设备的主流接口。该文针对安全运算模块设计中对多模块控制的需求问题，提出了一种可用于多安全运算模块的USB3.0控制器固件设计方法。该方法充分运用CYUSB3014芯片和FPGA芯片的硬件资源，设计了接口传输模式配置、DMA通道、GPIF Ⅱ接口控制逻辑等主要模块的固件程序。经测试，该方案能够有效控制多安全运算模块对PC端数据进行加解密处理，且传输速度能达到330.3MB/s，相比现有设计提升37%，实现了数据的高速可靠传输，具有较好应用前景。

Firmware Design of USB3.0 Controller to Support Multi Information Security Calculating Modules

USB3.0 interface has become the mainstream interface in hardware devices for its high-speed and stable transmission capacity. In order to solve the issue of multi-module control during the design of security calculating modules, an improved firmware design scheme for USB3.0 controller is proposed to support multiple security calculating module. Our scheme fully utilizes the hardware resources in CYUSB3014 chip and field programmable gate array (FPGA) chip. The firmware programs in main modules such as the interface transfer configuration mode, the direct memory access (DMA) channel, and general programmable interface (GPIF) Ⅱ control logic are also designed. Test results show that our scheme can effectively control the encryption and decryption operations by using of multiple security calculating module, and the data transmission rate can reach 330.3MB/s, which increases about 37% compared with the other schemes, and achieves the high-speed and reliable data transmission with broad prospects in application.