The ISE Design Suite: System Edition provides a comprehensive suite of integrated development environment, software tools, configuration wizards, and IP that facilitates your design and utilizes all of the flexibility offered by a programmable platform.
Xilinx ISE is a complete ECAD (electronic computer-aided design) application. It has the added value of being produced by the world's largest supplier of programmable logic devices and, of course, being free.
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The ISE/pH Ion Analyser can be used with any Ion Selective Electrode, and can be quickly and easily swapped between different ISEs.
If you're looking for a solution to prevent corruption of the operation of devices driven by FPGA and wish to limit the amount of ground bounce present at the output, the Xilinx PlanAhead 10.