介绍了一种基于PIC12CE519单片机的简单有效的数字机顶盒软件加密系统。
This paper introduces a simple and effective PIC12CE519 MCU based software encryption solution of digital set-top box.
论述了数字加密对讲机的工作原理、系统硬件和软件的实现方法、工作流程，给出了系统的评估方法和评估结果。
This paper expounds the operation principle of the system, implementation of software and hardware, and workflow as well as assessment method and result.
论文的最后设计了EPP模式的并行通信接口，实现了pc机与FPGA之间数据加密系统的调试验证。
Finally, the parallel interface in EPP mode is designed and the whole data encryption system designing between FPGA and PC is given to carry out the verification of data encryption results.
论文的最后设计了EPP模式的并行通信接口，实现了pc机与FPGA之间数据加密系统的调试验证。
Finally, the parallel interface in EPP mode is designed and the whole data encryption system designing between FPGA and PC is given to carry out the verification of data encryption results.
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