Information About

Jhdl




When the design is ready to be placed in a fabric, the developer simply generates an EDIF netlist and imports it into his favorite toolkit. Once imported, the developer should be able to transfer the circuit via a JTAG cable. EDIF netlisting is supported for the XC4000, Virtex, and Virtex-II series of FPGA s.

JHDL was developed at BYU in the Configurable Computing Laboratory , the project initiated in 1997 {Link without Title} .


FEATURES


The JHDL language features include:

  • Structural hardware design

  • Flexible module generators

  • Table-generated finite state machines

  • A graphical "Workbench" toolkit


Behavioral synthesis is not yet fully supported.

The integrated JHDL Workbench environment is designed to allow developers to graphically test and trace their circuit designs. This tool includes:

  • A graphical schematic viewer

  • A multiclock cycle-based simulator

  • A command line interface

  • A complete list of all wires and gates

  • A complete status of all values passing through the circuit



NAMING


Originally, the J in "JHDL" stood for "Java". However, to prevent trademark issues, the name has been Backronym ed to stand for Just-Another '''H'''ardware '''D'''escription '''L'''anguage.


EXTERNAL LINKS