Xilinx ISE WebPack 14.4 running on Windows 8
|Operating system||RHEL, SLED, FreeBSD, Microsoft Windows|
Xilinx ISE (Integrated Synthesis Environment) is a software tool produced by Xilinx for synthesis and analysis of HDL designs, enabling the developer to synthesize ("compile") their designs, perform timing analysis, examine RTL diagrams, simulate a design's reaction to different stimuli, and configure the target device with the programmer.
Xilinx ISE is a design environment for FPGA products from Xilinx, and is tightly-coupled to the architecture of such chips, and cannot be used with FPGA products from other vendors. The Xilinx ISE is primarily used for circuit synthesis and design, while ISIM or the ModelSim logic simulator is used for system-level testing. Other components shipped with the Xilinx ISE include the Embedded Development Kit (EDK), a Software Development Kit (SDK) and ChipScope Pro.
Since 2012, Xilinx ISE has been discontinued in favor of Vivado Design Suite, that serves the same roles as ISE with additional features for system on a chip development. Xilinx released the last version of ISE in October 2013 (version 14.7), and states that "ISE has moved into the sustaining phase of its product life cycle, and there are no more planned ISE releases."
The primary user interface of the ISE is the Project Navigator, which includes the design hierarchy (Sources), a source code editor (Workplace), an output console (Transcript), and a processes tree (Processes).
The Design hierarchy consists of design files (modules), whose dependencies are interpreted by the ISE and displayed as a tree structure. For single-chip designs there may be one main module, with other modules included by the main module, similar to the
main() subroutine in C++ programs. Design constraints are specified in modules, which include pin configuration and mapping.
The Processes hierarchy describes the operations that the ISE will perform on the currently active module. The hierarchy includes compilation functions, their dependency functions, and other utilities. The window also denotes issues or errors that arise with each function.
System-level testing may be performed with ISIM or the ModelSim logic simulator, and such test programs must also be written in HDL languages. Test bench programs may include simulated input signal waveforms, or monitors which observe and verify the outputs of the device under test.
- Logical verification, to ensure the module produces expected results
- Behavioural verification, to verify logical and timing issues
- Post-place & route simulation, to verify behaviour after placement of the module within the reconfigurable logic of the FPGA
Xilinx's patented algorithms for synthesis allow designs to run up to 30% faster than competing programs, and allows greater logic density which reduces project time and costs.
Also, due to the increasing complexity of FPGA fabric, including memory blocks and I/O blocks, more complex synthesis algorithms were developed that separate unrelated modules into slices, reducing post-placement errors.
IP Cores are offered by Xilinx and other third-party vendors, to implement system-level functions such as digital signal processing (DSP), bus interfaces, networking protocols, image processing, embedded processors, and peripherals. Xilinx has been instrumental in shifting designs from ASIC-based implementation to FPGA-based implementation.
The Subscription Edition is the licensed version of Xilinx ISE, and a free trial version is available for download.
The Web Edition is the free version of Xilinx ISE, that can be downloaded and used for no charge. It provides synthesis and programming for a limited number of Xilinx devices. In particular, devices with a large number of I/O pins and large gate matrices are disabled.
The low-cost Spartan family of FPGAs is fully supported by this edition, as well as the family of CPLDs, meaning small developers and educational institutions have no overheads from the cost of development software.
License registration is required to use the Web Edition of Xilinx ISE, which is free and can be renewed an unlimited number of times.
ISE supports Xilinx's 7-series (except of Spartan-7) and older devices including CPLDs (XC9500 and CoolRunner). For development targeting newer Xilinx's devices (UltraScale and UltraScale+ series), the Xilinx Vivado has to be used.
Operating System Support
Xilinx officially supports Microsoft Windows, Red Hat Enterprise 4, 5, & 6 Workstations (32 & 64 bits) and SUSE Linux Enterprise 11 (32 & 64 bits). Certain other GNU/Linux distributions can run Xilinx ISE WebPack with some modifications or configurations, including Gentoo Linux, Arch Linux, FreeBSD and Fedora.
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