基于开源处理器的传感器节点SOPC设计

SOPC design of sensor node based on open source processor

采用软硬件协同设计的方法,基于开源处理器OpenRISC1200设计一种面向无线HART网络应用的传感器节点可编程片上系统(SOPC),实现节点任务处理等基本功能。整个硬件系统首先进行功能仿真,然后使用ISE工具综合、评估了整体性能,最后下载到FPGA中进行软件开发与验证。针对实际应用,移植了实时操作系统RAW-OS和无线HART协议栈,编写相应的程序完成测试,结果表明:所设计的节点片上系统(SOC)功能稳定可靠。

System on programmable chip （SOPC） of sensor node for wireless HART network is designed based on open source microprocessor OpenRISC1200, which adopts the method of hardware/software co-design. It can implement basic function of node task processing and others. The whole hardware system is simulated firstly. Then use ISE tools to synthesize it and evaluate the overall performance, at last download to FPGA for software development and validation. For practical applications, real-time operating system RAW-OS and wireless HART protocol are ported, and programs are compiled to complete the test, the result shows that the desiged node system on chip （SOC） is stable and reliable in function.