一种小型实时操作系统在智能支付终端上的应用

With the market development and business competition of intelligent payment terminal device, low-cost and high-performance become the two major requirments. The technology disadvantages of traditional payment terminal based on foreground-background system architecture are analyzed in this essay, working on original hardware platform it proposes a renovation method for the application of a mini real-time operating system, and according to product requirements the essay divides out function modules and defines every function module as different task, all tasks run as parallel processing. This will make system archtecture clear, application developing and code management simply. Using different size memory buffer and dynamic memory management technology to optimize memory, and all these improve the performance price ratio of intelligent payment terminal.