摘要
固件下载升级是时下电子产品,特别是数字电视、机顶盒等必须具备的一项功能,其性能(速度、稳定性)有时会影响电子产品的整体性能指标。为了使固件下载这一功能模块在电子产品中能够更加高效稳定地完成其工作,文中重点研究了在采用“双启动”方案实现嵌入式系统固件升级的过程中,集成LZMA压缩算法以提高系统固件下载升级的效率问题;在此基础上对系统集成CRC校验算法以保证固件升级传输的可靠性进行了一些讨论。
Firmware updating is the essential function which is necessary for the popular electronic products such as digital TV and set top box. Its capability is so important that it reflects the performance of the whole system. In order to develop the performance of firmware updating module, this paper focuses on integrating the LZMA compressed algorithm in the process of firmware updating of the embedded system to improve the efficiency. Furthermore, this paper discussed the CRC checkout algorithm to ensure the security and reliability of data transmission.
出处
《电子测量技术》
2006年第5期135-137,共3页
Electronic Measurement Technology
