基于SOPC与乒乓存储的车载信息终端设计

为满足车载显示设备低成本、 小体积、 高性能以及高可靠性的要求, 提出了一种基于片上可编程系统SOPC(System On a Programmable Chip)和乒乓存储显示技术的车载信息终端设计。以现场可编程门阵列FPGA(Field Programmable Gate Array)作为硬件载体, 构建了基于PowerPC软处理器的液晶显示器LCD(Liquid Crystal Display)控制单元, 并以电子控制单元ECU(Electronic Control Unit)的形式接入到汽车自动控制系统中, 形成具有汽车状态的监测与存储功能的人机交互系统。对系统进行了时序与功能仿真, 并通过了硬件平台的测试。实验数据表明, 该系统可以实时显示行车信息并提供流畅的视觉体验。

Design of Intelligent Vehicle Information Terminal Based on SOPC & Butterfly Storage

A new method of embedded vehicle information terminal based on SOPC(System on a Programmable Chip) and butterfly-storage is proposed to meet the requirement of vehicle display device, such as low-cost, small size, high performance and reliability. It took FPGA (Field Programmable Gate Array) ashardware carrier, and constructed LCD (Liquid Crystal Display) control unit based on PowerPC as soft core. The man-machine system is integrated as ECU (Electronic Control Unit) into automobile automatic control system, so that it can achieve the function of car state monitor and storage. The principleof the butterfly-storage system, the system scheme, the
real-time requirement of automobile switching in display mode, LCD control timing and AXI(Advanced Extensible Interface) bus timing are analyzed and discussed. The timing and function are simulated, and it passed the test of hardware platform. The experimental data showed that the system can display real-time car-state and provide a smooth visual experience.