| 基于PowerPC8640的PCI-E总线接口设计 |
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| 引用本文： | 张伟栋,刘志敏.基于PowerPC8640的PCI-E总线接口设计[J].航空计算技术,2011,41(3):119-121,134. |
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| 作者姓名： | 张伟栋 刘志敏 |
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| 作者单位： | 1. 中国航空计算技术研究所,陕西,西安,710068
2. 空军航空大学,吉林,长春,130022 |
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| 摘 要： | PCI-E总线因为其自身的特点和关键技术优势,被公认为下一代总线标准。PowerPC8640内部集成有PCI-E接口,同时本身是一款高性能的处理器。重点介绍了PowerPC8640集成的PCI-E接口的特征以及软件初始化流程,PowerPC8640的PCI-E接口作为主设备,设计了两种PCI-E从设备的实现方式：使用FPGA的PCI-E硬核和专用PCI-E转PCI的芯片PEX8112,实现PCI-E的通信。经加电试验,所有功能都已实现,表明采用PowerPC8640实现PCI-E的方法可行,而且简化了硬件设计和软件开发。
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| 关 键 词： | 总线 PowerPC8640 PCI-E FPGA PEX8112 |
Design of PCI-E Bus Interface Based on PowerPC8640 |
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| ZHANG Wei-dong,LIU Zhi-min.Design of PCI-E Bus Interface Based on PowerPC8640[J].Aeronautical Computer Technique,2011,41(3):119-121,134. |
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| Authors: | ZHANG Wei-dong LIU Zhi-min |
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| Institution: | 1.Aeronautical Computing Technique Research Institute,Xi′an 710068,China;2.Air Force Aviation University,Changchun 130022,China) |
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| Abstract: | PCI-E is considered as next Bus standard,because of the characteristic and key technology advantage.PowerPC8640 integrates PCI-E interface,and it is a high-powered CPU.The paper introduces mainly PCI-E of PowerPC8640 and flow of initialization.PCI-E of PowerPC8640 is master,we devise two methods of others PCI-E device as slave: using PCI-E hard-IP of FPGA and using PEX8112 which is PCI-E to PCI bridge.Communications of PCI-E is implemented.All functions are implemented,and the result indicates that the method of PCI-E Bus interface based on PowerPC8640 is viable,and this method makes hardware design and software exploitation easy. |
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| Keywords: | bus PowerPC8640 PCI-E FPGA PEX8112 |
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