06-03-2011, 12:35 PM
VHDL
VHDL code is used to describe the required behavior of the digital circuit. The VHDL
description will then be synthesized by the software tools for the purpose of hardware implementation and also the description can be simulated on the computer for the purpose of testing and verifying. In short, the VHDL descrition of the code will be analyzed, compiled, and synthesized. just a configuration file i ssent to the FPGA for the purpose of hardware implementation.
The newer higher capacity devices provide additional challenges as more functions. it is now possible to add embedded microcontrollers to the FPGA along with other more
conventional digital logic. The system uses a Xilinx Picoblaze 8-bit microcontroller as the starting point. Above it, DSP functions can also be added to the FPGA which allows the concept of SoC(system on chip).
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