| 多处理器系统中DSPHPI与VME总线DMA接口设计 |
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| 引用本文： | LUO Xianzhi,董涛,YUAN Jianping,杨树元. 多处理器系统中DSPHPI与VME总线DMA接口设计[J]. 微计算机应用, 2008, 29(8) |
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| 作者姓名： | LUO Xianzhi 董涛 YUAN Jianping 杨树元 |
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| 作者单位： | 中国科学院声学研究所,北京,100190 |
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| 摘 要： | 雷达和声纳自导信号处理需要多个DSP和多个上位机联合工作。本文给出了基于VME总线的上位机与多个DSPHPI之间通过DMA方式进行并行通信的接口设计方案。实验和工程实践证明,采用DMA方式的设计方案比采用直接读写HPI口的方案访问速度快四倍以上。
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| 关 键 词： | VME总线 DMA 接口 |
The Interface Design between DSPHPI and VMEbus in Multi- processor System |
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| LUO Xianzhi,DONG Tao,YUAN Jianping,YANG Shuyuan. The Interface Design between DSPHPI and VMEbus in Multi- processor System[J]. Microcomputer Applications, 2008, 29(8) |
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| Authors: | LUO Xianzhi DONG Tao YUAN Jianping YANG Shuyuan |
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| Abstract: | It is indispensable that multi DSPs and multi upper-processors cooperate together on radar or sonar signal processing. The interface design scheme according to DMA means is put forward between the upper processors based on VMEbus and multi DSPHPIs. The experiment proves that the data access speed based on DMA means is much faster than the direct read-write means. |
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| Keywords: | VMEbus DMA interface |
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