摘要
密码键盘广泛应用于金融行业,为保证密码输入过程中的安全性,该系统目标通过PCI-2.0安全认证。本文在讨论了FreeRTOS操作系统在ADS中移植于AT91SO51安全芯片(arm7)的基础上,实现了一种基于实时操作系统FreeRTOS的密码键盘方案。对系统功能模块使用任务的方式进行处理,该系统采用FreeRTOS 5.0.4版本,软件结构模块化,多个功能模块的任务化使得实现更为方便。
PED （PINPAD Entry Device） is widely used in financial Industry, the system aims to pass the PCI-2.0 authentication so as to ensure the safety in inputting password. On the basis of the discussion of the transplantation of FreeRTOS to AT91SO51 microchip in ADS environment, a PED scheme is realized based on FreeRTOS. In the system FreeRTOS version 5.0.4 and modular software structure are adopted, thereby facilitating the realization of the system.
出处
《电子技术（上海）》
2009年第6期15-17,共3页
Electronic Technology
