摘要
分析了UART核的结构和智能卡的传输协议,提出一种基于UART核的智能卡接口IP核的设计。该设计以成熟的UART核为基础,无需编写异步串口的时序与接口逻辑,仅在串口核中增加收发缓冲器和协议处理等模块,减少了工作量并缩短了开发周期。最后对所设计的IP核进行仿真和实际测试,结果表明该IP核设计正确,运行稳定,适合在多卡系统中应用。
By analyzing the structure of UART core and the transport protocol of smart card, this paper proposes a design of smart card interface IP core based on UART. This design can reduce the workload and shorten the development cycle by adding buffer modules, protocol processor modules, and so on, which does not need to code UART logic and timing. Through simulating and testing, the re-sults show that the IP core is designed properly and works stably. It＇s suitable for applications in multi-card system.
出处
《单片机与嵌入式系统应用》
2012年第12期12-15,共4页
Microcontrollers & Embedded Systems
