嵌入式支付系统模拟器

Simulator of embedded payment system

目前,嵌入式支付应用开发受到硬件开发板不足、烧片时间长、调试不方便等因素影响,面临着应用开发周期长的问题。为了解决以上问题,研究了某个嵌入式支付系统,并在Windows环境下开发了该嵌入式支付系统对应的嵌入式支付系统模拟器。所开发的嵌入式支付模拟器基于软件模拟硬件功能的基本思想,通过Windows现有API对嵌入式支付系统的基础系统进行模拟;在保持对外接口不变、模拟函数功能的原则下,对驱动程序进行模拟;扩展资源工具,实现中间层的移植;通过配置文件,解决了模拟器适用于不同机型的问题,并且实现了人机交互界面的输入和输出;通过动态链接库(Dynamic Link Library,DLL)隔离、宏隔离以及区域隔离,解决Windows相关API隔离。

At present, the embedded payment application is affected by the hardware development board, long burning time, inconvenient debugging and other factors. It faces the problem of long cycle of the application development.In order to solve the above problems, this paper studies the embedded payment system. The embedded payment simulator developed in this paper is based on the idea of software simulation hardware function, simulate based system of embedded payment system by the existing Windows Application Programming Interface （API）. Under the principle of maintaining the external interface not changed and simulating the function, simulate the key driver, LCD driver and flash driver; extend resource tools to realize the transplantation of the middle layer; solve the problems of the simulator used in different types through the configuration file, and realize the input and output of human-computer interaction interface; through isolation, macro isolation and regional isolation of the Dynamic Link Library（DLL）, solve the Windows API isolation.