| 基于S3C6410的DMA数据跟踪技术在TD-LTE中的实现 |
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| 引用本文： | 陈安地,李小文.基于S3C6410的DMA数据跟踪技术在TD-LTE中的实现[J].电子技术应用,2012,38(5):19-22. |
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| 作者姓名： | 陈安地 李小文 |
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| 作者单位： | 重庆邮电大学计算机科学与技术学院,重庆,400065 |
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| 基金项目： | 国家科技重大专项基金资助项目 |
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| 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。
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| 关 键 词： | 直接存储器存取 嵌入式应用 长期演进 跟踪数据 |
Implementation of tracing data with DMA in TD-LTE system based on S3C6410 |
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| Chen Andi
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Li Xiaowen.Implementation of tracing data with DMA in TD-LTE system based on S3C6410[J].Application of Electronic Technique,2012,38(5):19-22. |
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| Authors: | Chen Andi Li Xiaowen |
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| Affiliation: | (Academe of Computer Science and Technique,Chongqing University of Posts and Telecommunications,Chongqing 400065,China) |
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| Abstract: | 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. |
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| Keywords: | DMA embedded application TD-LTE trace data |
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