18-08-2012, 11:11 AM
DESIGN AND IMPLEMENTATION OF DIGITAL CODE CONVERTER USING VHDL TOOL
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ABSTRACT:
The Digital Code Converter is a digital device used to convert an input binary code to a required binary code. The device can accept a 4-bit binary code and generate 4 possible 4-bit binary codes. The Code Conversions done in Digital Code Converter are
Binary code to One hot-code
Binary code to Gray code
Gray code to Binary code
BCD to Excess-3 code.
The device can accept the input data and selection line through switch settings and the output code is displayed using LEDs. The digital code converter is designed to generate a sequence of digital data called switching sequence that can be used to convert an input binary code to a required binary code for the corresponding selection line. The clock requirements of the system are achieved by using the clock generator
SOFTWARE:
Using VHDL software tool, a digital system can be designed and simulated. Also the Timings of various signals can be verified. Then the system can be implemented in PAL C22V10 using WARP-R4 or can implemented in ALTERA / ATMEL FPGA using MAX plus II/IDS 6.0.