摘要
设计了一种基于STi7162芯片的低成本高清机顶盒,介绍了机顶盒的基本硬件组成、存储子系统和外围接口设计,对机顶盒软件系统架构也进行了简单说明。对设计的基于双Loader的机顶盒软件升级方案进行了重点介绍,详细介绍了升级方案的组成、Flash分区设计、升级条件检测和数据更新过程。实际测试结果表明,所设计的升级方案稳定可靠,可满足复杂的用户升级环境需求。
A HD set-top box based on STi7162 is designed in this paper. The basic hardware of set-top box, the design of storage subsystem and peripheral interfaces are introduced. The system software structure of set-top box is also introduced. The solutions of software upgrading based on double-loader is highlighted in this paper, and the composition, the partition of Flash, the upgrading condition detection and the process of updating data of the upgrading solutions are described in detail. The solution of software upgrading passes actual test and achieves a safe and secure upgrading feature, which can be used in complex user environment.
出处
《电视技术》
北大核心
2014年第21期39-43,共5页
Video Engineering
