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| Example |
The PCB example below highlights the dramatic difference 7Circuits can make in the FPGA I/O assignment process. The first image is a PCB created the old-fashioned way. Looking at the ratsnest, it is clear that the FPGA and supporting components are not optimally interconnected - crossovers are easily visible.
The second image is of the same board but with pin assignments made - automatically using 7Circuits. The difference is obvious, even when viewing the simple ratsnest from a very high level. The interconnections are now better optimized and crossovers have been reduced significantly. So not only did it take longer to do the FPGA pin assignments on the original board, the results are worse. And this is with a one-FPGA design; multi-FPGA designs benefit even more.
PCB with FPGA I/O Assignments Made Using Classic Methods
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Resulting PCB using 7Circuits to Optimize the FPGA Pin Assignments
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Logical Constraints
