| Linux2.6内核下同步串行通信驱动的开发与应用 |
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| 引用本文： | 仇洁婷,陈儒军,何展翔,邱开林. Linux2.6内核下同步串行通信驱动的开发与应用[J]. 计算机应用, 2010, 30(3): 850-853 |
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| 作者姓名： | 仇洁婷 陈儒军 何展翔 邱开林 |
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| 作者单位： | 1. 中国石油集团东方地球物理勘探有限责任公司2. |
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| 摘 要： | 随着ARM/DSP双核处理器在地球物理勘探仪器中的推广应用，双核间的通信成为实现这种双核处理器系统的关键技术。针对Linux2.6版本内核，详细介绍了基于AT91TM9200的SSC同步串行通信设备驱动的模块化、分层次的设计架构，并在驱动中使用DMA传输模式、分段缓存技术和修改PDA控制器优先级。在此基础上给出了AT91RM9200/DSP56309双核的接口电路设计。试验表明，在AT91RM9200 /DSP56309双核中利用同步串行同步通信的设计，能够使系统高效、稳定、快速地进行数据传输，从而使双核处理器能够很好地协同工作。
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| 关 键 词： | 同步串行通信 AT91RM9200 DSP56309 Linux 2.6 |
| 收稿时间： | 2009-09-21 |
| 修稿时间： | 2009-11-13 |
Development and application of serial synchronous communication driver in Linux2.6 |
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| QIU Jie-ting,CHEN Ru-jun,HE Zhan-xiang,QIU Kai-lin. Development and application of serial synchronous communication driver in Linux2.6[J]. Journal of Computer Applications, 2010, 30(3): 850-853 |
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| Authors: | QIU Jie-ting CHEN Ru-jun HE Zhan-xiang QIU Kai-lin |
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| Abstract: | The communication between ARM and Digital Signal Processor(DSP)is a key factor in ARM/DSP dual core design widely used in geophysics exploration instrumentation.In this paper serial synchronous communication between AT91RM9200/DSP56309 dual core processors was realized and the modularized and hierarchical design of the SSC driver based on AT91TM9200 in Linux 2.6 was introduced in detail.The DMA transmission,multi-buffering and PDA controller priority modification was used in the driving design.The SSC inter... |
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| Keywords: | serial synchronous communication AT91RM9200 DSP56309 Linux2.6 |
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