FPGA Implementation Median Filter for De-Noising - Digital System Design
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Digital System Design
FPGA Implementation Median Filter for De-Noising - Digital System Design
In this tutorial, we will discuss FPGA implementation of a Median filter which is used for removing noises from an image. Noises in an image can be of various types like salt and pepper noise, Gaussian noise, periodic noise etc [1]. Out of these noises, salt…
Sorting Processor Design to Sort a Serial Stream - Digital System Design
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Digital System Design
Sorting Processor Design to Sort a Serial Stream - Digital System Design
Till now the sorting architectures discussed are based on the accessing of data elements in parallel. In real time situation the data streams are serial and serial to parallel conversion is costly as well as time consuming. On the other hand, parallel sorting…
Design of (3-40)V to (1.5 -35)V, 3A, DIY Buck Converter - Digital System Design
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Digital System Design
Design of (3-40)V to (1.5 -35)V, 3A, DIY Buck Converter - Digital System Design
The Buck converter (3-40 V to 1.5-35 V) is based on LM2576 series of regulators which is capable of driving 3 A load with excellent line and load regulation. Easily available SMD version of LM2576 based buck converter claims to carry 3 A but fails to carry…
Multiplication using Look Up Tables - Digital System Design
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Digital System Design
Multiplication using Look Up Tables - Digital System Design
In the previous tutorials, many techniques are discussed for multiplication operation. An alternative way of computing multiplication is using look up tables. Multiplication using look up tables can be useful where serial multiplication is needed or memory…
CORDIC Based Sine and Cosine Generator - Digital System Design
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Implication Chart Method for State Minimization - Digital System Design
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Digital System Design
Implication Chart Method for State Minimization - Digital System Design
Implication Chart Method for State Minimization is very popular for reducing the steps of an FSM and it is more machine friendly method than Row Equivalence Technique. In this method, a chart is prepared to find the equivalent steps. The implication chart…
State Partition Method for State Minimization - Digital System Design
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Digital System Design
State Partition Method for State Minimization - Digital System Design
State Partition Method for State Minimization is also powerful as the Implication Chart Method and better than Row Equivalence method. In this technique, the states are partitioned into groups based on the possibility that they can be combined. Lets consider…
FPGA Implementation of 1024-point FFT/IFFT Processor - Digital System Design
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Digital System Design
FPGA Implementation of 1024-point FFT/IFFT Processor - Digital System Design
I. Introduction Fast Fourier transform (FFT), an efficient technique to perform discrete Fourier transform (DFT), is the most important block in the signal processing domain. FFT is used to convert a signal in time domain to its frequency domain. On the other…
Computation of Exponential Function - Digital System Design
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Digital System Design
Computation of Exponential Function - Digital System Design
Signal processing algorithms sometimes involve computation of exponential. Thus it is important to implement the exponential function. In this work, design of digital hardware for exponential function is discussed. Like other elementary functions, exponential…
Efficient Architecture for Exponential - Digital System Design
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Digital System Design
Efficient Architecture for Exponential - Digital System Design
An efficient architecture of exponential function is discussed here which is hardware efficient than its previous architectures.
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LUT Based Numerically Controlled Oscillator - Digital System Design
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Digital System Design
LUT Based Numerically Controlled Oscillator - Digital System Design
A numerically controlled oscillator (NCO) is used for on-chip generation of major signals like cosine, sine, linear frequency modulated (LFM), Gaussian etc. in system on chips (SoCs). These signals can be generated by two ways, either by analog circuitry…
ADC Breakout Board for MCP3008 - Digital System Design
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Digital System Design
ADC Breakout Board for MCP3008 - Digital System Design
This is ADC Breakout Board for MCP3008 with PMOD connector. Verilog code to interface this with any FPGA is also provided.