摘要
基于TD-LTE系统中数据跟踪技术的研究与DMA获取系统总线的不同模式,设计并分析比较了在S3C6410上通过DMA实现原语跟踪的两种方案。根据TD-LTE无线综合测试仪中的设计要求,选择了中断标志查询模式获取系统总线的方案,实现了TD-LTE系统原语的实时跟踪,满足了系统对CPU资源利用率以及数据传输速度和准确性的要求。
Based on the research and analysis of tracing data in TD-LTE system and different modes of DMA getting system bus, two schemes were designed to trace data with DMA and compared with each other. According to the requirements of TD-LTE wireless comprehensive tester, the scheme which got system bus with querying interrupt flag mode was chose. The scheme proposed the function of real-time tracing data in the TD-LTE system, met the requirements of CPU resource utilization and satisfied the velocity and precision of data transfer.
出处
《电子技术应用》
北大核心
2012年第5期19-22,共4页
Application of Electronic Technique
基金
国家科技重大专项基金资助项目(2009ZX3002-009)
