| Linux在TD-SCDMA智能手机的应用与实时性改进 |
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| 引用本文： | 万兵,郑建宏. Linux在TD-SCDMA智能手机的应用与实时性改进[J]. 计算机工程与设计, 2008, 29(2): 279-281 |
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| 作者姓名： | 万兵 郑建宏 |
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| 作者单位： | 重庆邮电大学,移动通信研究中心,重庆,400065;重庆邮电大学,移动通信研究中心,重庆,400065 |
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| 基金项目： | 国家高技术研究发展计划(863计划) , 国家火炬计划 |
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| 摘 要： | 提出了嵌入式Linux在TD-SCDMA智能手机上的实现架构,Linux的实时性进行改进,构建了一个包含实时内核和标准内核的双内核Linux,实现事件优先级,抢占调度以及细粒度时钟.在一款TD-SCDMA无线终端评估板上进行测试,最大任务调度延时和中断响应时间分别为14μs和3μs,达到了实时性要求.
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| 关 键 词： | 嵌入式Linux 智能手机 实时双内核 实时抢占 实时定时器 |
| 文章编号： | 1000-7024（2008）02-0279-03 |
| 收稿时间： | 2007-02-05 |
| 修稿时间： | 2007-02-05 |
Implementation of Linux on TD-SCDMA smart phone and real-time capability betterment |
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| WAN Bing,ZHENG Jian-hong. Implementation of Linux on TD-SCDMA smart phone and real-time capability betterment[J]. Computer Engineering and Design, 2008, 29(2): 279-281 |
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| Authors: | WAN Bing ZHENG Jian-hong |
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| Abstract: | The architecture of implementing embedded Linux on TD-SCDMA smart phone is proposed.Then the design of real-time Linux is illustrated in detail,which is composed of real-time kernel and standard Linux kernel,support event priority and preempted real time,and precise time.Test on a TD-SCDMA wireless terminal evaluation board,the delay of real-time task is lower than 14 s and the interrupt response time is lower than 3 s,the need of real-time system is meet. |
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| Keywords: | embedded Linux smart phone real-time double kernel real-time preempt real-time timer |
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