本文提出并实现了适用于现代层次化结构的FPGA芯片的CAD软件系统:FDE2009(FPGA Development Environment).该软件系统不但由工艺映射,布局布线,位流生成,编程下载等功能模块构成了一套完整的FPGA CAD流程,并且根据现代FPGA芯片层次化的...本文提出并实现了适用于现代层次化结构的FPGA芯片的CAD软件系统:FDE2009(FPGA Development Environment).该软件系统不但由工艺映射,布局布线,位流生成,编程下载等功能模块构成了一套完整的FPGA CAD流程,并且根据现代FPGA芯片层次化的结构特点,提出了逻辑分层的布局思想及由底至上逐层构建布线资源图的算法,提高了硬件资源的利用率及程序的运行效率.此外,本软件自定义了一套使用扩展性标志语言的文件系统,从而使其具有一定的通用性及良好的扩展性.软硬件协同测试结果表明该软件系统各模块功能正确,并能配合硬件高效的实现各类功能电路,是一套实用的FPGA软件系统.展开更多
This paper studies the linkage problem between the result of high-level synthesis and back-end technology, presents a method of high-level technology mapping based on knowl edge, and studies deeply all of its importan...This paper studies the linkage problem between the result of high-level synthesis and back-end technology, presents a method of high-level technology mapping based on knowl edge, and studies deeply all of its important links such as knowledge representation, knowledge utility and knowledge acquisition. It includes: (1) present a kind of expanded production about knowledge of circuit structure; (2) present a VHDL-based method to acquire knowledge of tech nology mapping; (3) provide solution control strategy and algorithm of knowledge utility; (4)present a half-automatic maintenance method, which can find redundance and contradiction of knowledge base; (5) present a practical method to embed the algorithm into knowledge system to decrease complexity of knowledge base. A system has been developed and linked with three kinds of technologies, so verified the work of this paper.展开更多
文摘本文提出并实现了适用于现代层次化结构的FPGA芯片的CAD软件系统:FDE2009(FPGA Development Environment).该软件系统不但由工艺映射,布局布线,位流生成,编程下载等功能模块构成了一套完整的FPGA CAD流程,并且根据现代FPGA芯片层次化的结构特点,提出了逻辑分层的布局思想及由底至上逐层构建布线资源图的算法,提高了硬件资源的利用率及程序的运行效率.此外,本软件自定义了一套使用扩展性标志语言的文件系统,从而使其具有一定的通用性及良好的扩展性.软硬件协同测试结果表明该软件系统各模块功能正确,并能配合硬件高效的实现各类功能电路,是一套实用的FPGA软件系统.
文摘This paper studies the linkage problem between the result of high-level synthesis and back-end technology, presents a method of high-level technology mapping based on knowl edge, and studies deeply all of its important links such as knowledge representation, knowledge utility and knowledge acquisition. It includes: (1) present a kind of expanded production about knowledge of circuit structure; (2) present a VHDL-based method to acquire knowledge of tech nology mapping; (3) provide solution control strategy and algorithm of knowledge utility; (4)present a half-automatic maintenance method, which can find redundance and contradiction of knowledge base; (5) present a practical method to embed the algorithm into knowledge system to decrease complexity of knowledge base. A system has been developed and linked with three kinds of technologies, so verified the work of this paper.
