基于QEMU的全数字仿真环境设计

Design of All-digital Simulation Environment Based on QEMU

嵌入式软件测试时需要搭建的测试环境和对硬件板卡的支持是软件测试人员会遇到的重要问题。主要阐述了怎么基于QEMU设计实现全数字仿真环境。通过脚本语言代替复杂的图形界面和测试引擎,以开源的Q EMU模拟器作为Cortex-M3处理器的指令集仿真,通过对开发板LM3S9B81的串口仿真为例,实验验证了此全数字仿真环境设计的可行性。

When the embedded software is tested, it is an important issue to build testing environment and supporting of hardware for software tester. This paper mainly expounds how to design all-digital simulation environment based on QEMU. It takes place of complex graphical interface and test engine by script language, and takes the open source QEMU simulator as the instruction simulation of Cortex-M3 processor. Taking the serial port simulation of the development board LM3S9B81 as the example, the feasibility of the all-digital simulation environment design is verified by experiments.