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Traditional sequence based routing algorithms for FPGAs usually route only one net at a time, so as to simplify the routing problems. However, with the number of logic blocks in the FPGAs becomes larger and larger, the time need to route each net can increase significantly. A new recursive detailed routing algorithm is proposed to address this problem. As decided by its recursive nature, this algorithm...
Traditional physical design of FPGAs is usually divided into 2 phases, placement and routing. While it simplifies design modelling and algorithm implementation, some problems such as mismatches between the two will also occur when a valid placed circuit can't be globally routed. The mismatches can significant increase the overall runtime of the physical design. A new placement and global routing integrated...
This paper proposes a multilevel placer targeted at hierarchical FPGA (Field Programmable Gate Array) devices. The placer is based on multilevel optimization method which combines the multilevel bottom-up clustering process and top-down placement process into a V-cycle. It provides superior wirelength results over a known heuristic high-quality placement tool on a set of large circuits, when restricted...
This paper presents a new detailed router for the hierarchical field programmable gate arrays (H-FPGAs). The optimal objectives of proposed routing algorithm are improving the time consumption of routing procedure (minimizing the running time of algorithm), and at the same time make great effort to decrease the wire length and critical path delay. Initially, nets are routed sequentially according...
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