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Xilinx 8.2i manual PROMGen Options

Models: 8.2i

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PROMGen Options

PROMGen Options

This section describes the options that are available for the PROMGen command.

–b (Disable Bit Swapping—HEX Format Only)

This option only applies if the –p option specifies a HEX file for the output of PROMGen. By default (no –b option), bits in the HEX file are swapped compared to bits in the input BIT files. If you enter a –b option, the bits are not swapped. Bit swapping is described in “Bit Swapping in PROM Files”.

–c (Checksum)

promgen –c

The –c option generates a checksum value appearing in the .prm file. This value should match the checksum in the prom programmer. Use this option to verify that correct data was programmed into the prom.

–d (Load Downward)

promgen –dhexaddress0 filename filename...

This option loads one or more BIT files from the starting address in a downward direction. Specifying several files after this option causes the files to be concatenated in a daisy chain. You can specify multiple –d options to load files at different addresses. You must specify this option immediately before the input bitstream file.

Here is the multiple file syntax.

promgen –dhexaddress0 filename filename...

Here is the multiple –d options syntax.

promgen –dhexaddress1 filename -dhexaddress2 filename...

–f (Execute Commands File)

–fcommand_file

The –f option executes the command line arguments in the specified command_file. For more information on the –f option, see “–f (Execute Commands File)” in Chapter 1.

–i (Select Initial Version)

–iversion

The –i option is used to specify the initial version for a Xilinx multi-bank PROM.

–l (Disable Length Count)

promgen –l

The –l option disables the length counter in the FPGA bitstream. Use this option when chaining together bitstreams exceeding the 24 bit limit imposed by the length counter.

Development System Reference Guide

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Xilinx 8.2i manual PROMGen Options
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8.2i specifications

Xilinx 8.2i is a significant version of the Xilinx ISE (Integrated Software Environment) that emerged in the early 2000s, marking an important milestone in the world of FPGA (Field-Programmable Gate Array) development. This version introduced a slew of advanced features, technologies, and characteristics that made it an indispensable tool for engineers and developers in designing, simulating, and implementing digital circuits.

One of the standout features of Xilinx 8.2i is its enhanced design entry capabilities. This version supports multiple design entry methods, including schematic entry, VHDL, and Verilog HDL, giving engineers the flexibility to choose their preferred approach. The integrated environment provides user-friendly graphical interfaces, making it accessible for both novice and experienced users.

Xilinx 8.2i's synthesis tools have been improved to enable more efficient design compilation and optimization. The new algorithms used in this version facilitate faster synthesis times while reducing power consumption and improving performance. Furthermore, it features support for advanced FPGA architectures, which allows for the implementation of more complex designs with greater efficiency.

The implementation tools in Xilinx 8.2i include advanced place and route capabilities, utilizing state-of-the-art algorithms for optimized resource usage. These tools enable designers to make better use of FPGA resources, ensuring that designs fit within the constraints of the target device while maximizing performance.

Another key characteristic of Xilinx 8.2i is its extensive support for various Xilinx devices such as the Spartan, Virtex, and CoolRunner series. This compatibility ensures that developers can leverage the powerful features of these FPGA families, including high-speed transceivers and DSP slices.

Xilinx 8.2i also places a strong emphasis on simulation and verification. The version integrates with various simulation tools, allowing for thorough testing of the designs before implementation. This reduces the risk of errors and ensures that the final product meets specifications.

In addition, this version includes support for design constraints, enabling engineers to specify timing, area, and other critical design parameters. By accommodating constraints, Xilinx 8.2i helps in achieving reliable and efficient designs tailored to project needs.

In summary, Xilinx 8.2i is a robust software development tool that enhances the design process for FPGAs. Its comprehensive features, including multiple design entry options, advanced synthesis and implementation tools, extensive device support, and strong simulation capabilities, make it a valuable resource for engineers and developers striving for innovation in digital design.