EMBEDDED SYSTEMS 2016 IEEE PAPERS

Tiny arithmetic circuit inside Functional Computational Unit of DSP accelerator can affect the complete DSP accelerator performance Present day applications on signal processing requires a very high degree of computation. For example in the area of multimedia, the information required to present the multimedia data is increasing.This is because of the increased demand of clarity of the multimedia content on desktop and embedded applications.Most of the embedded devices which supports multimedia content like displaying of video data and image data requires large amount of calculations which gave rise to DSP accelerator. If the embedded application requires handling of HD or 4K content, then it is required to have a powerful DSP which has a very high computational capability on a small hand held device.This gives rise to the need of reduction in power consumption and area of the chip. The DSP accelerator consists of multiple Flexible computational units which intern consists of am...

We have to collect information in following topics and understand them. 1.Understanding of Image steganography 2.Understanding of LSB based steganography 3.Cryptography 4.peak signal-to-noise ratio (PSNR) and safety 5.performance evaluation of the Image steganography Then compare the results mentioned in the paper.             (results of PSNR and safety with traditional LSB based stenography technique)             (results of PSNR and safety with stenography combined with cryptography technique) Today we will concentrate on Topics 1,2 and 3.Please try to collect the information. By tomorrow morning we can have a discussion for better understanding. I have collected the following info, plz try to use it. 1. Understanding of Image steganography: Steganography: how to hide certain information in another public information, and then to pass hidden information by transferring public information. Steganogra...

A basic BIST design consists of the following components, 1.BIST controller 2.CUT (circuit under test) (in our case it is RAM) 3.Test pattern generator 4.Response verification 5.Testbench to verify the functionality of the above BIST design In case of our implementation CUT is a SRAM, so it is required to design and implement a small SRAM for testing.   BIST controller has to access the SRAM for sending the test pattern and verify the output of the CUT. Based on the verification results a self repairing technique needs to be incorporated. We will be sharing the sample verilog code for the above design Soon.

As we already know that Arduino is very popular platform to design and develop small scale embedded systems. We will take an example of implementing a Automatic Wireless Weather Monitoring System within 2500Rs [ :) ] in 15 days of time. We have identified a low cost Arduino based open H/W where we can use the existing board designs. While collecting the information related to the sensors, we came to know that the sensor manufacturers are providing software interface libraries and sample applications which can collect the data from the sensors. So we can avoid the cost and time for the interfacing of sensors, The following is the sample code provided by sensor manufacturer .This code to reads data from the temperature and humidity sensors within 20 lines of code. void setup() {   Wire.begin();   Serial.begin(9600); } void loop() {   Serial.print("Humidity(%RH): ");   Serial.print(SHT2x.GetHumidity());   Serial.print("     Temperat...

More info on this file format is at http://filext.com/file-extension/B4S This can be parsed using following xml based parser application. /* .b4s parser Application */ /*Author:chandrashekar bs*/ /*email:buggs.cancerion@gmail.com/chandragoan@gmail.com*/ /* I have not added <> for including files because of in google blogs since <> are interprested as htnl syntaxes and content within thos are not appeared*/ #include iostream #include string.h #include libxml/parser.h #include libxml/xinclude.h #include libxml/tree.h #include libxml/xmlIO.h int main(int argc, char **argv) {     xmlDocPtr doc;     xmlNodePtr nodePtr;     xmlNodePtr rootnodePtr;     xmlChar *xmlbuff;     int loopcount1, loopcount2, loopcount3, loopcount4;         loopcount1=loopcount2=loopcount3=loopcount4=0;     if(argc !=2)     {         printf("Usage %s: Enter valid b4...

Today we will start a topic on tools available for Linux software development environment. When it comes to any application + middle-ware + device driver development, tools play very important role which saves time of development by making easy to develop and debug. Source code editor(Vim, Emacs (OTP), Eclipse, Cscope and Ctags) Compiler (the one and only GCC) [How to compile a compiler? :)] Glibc (GNU C library) [Development and maintenance ] Debugger(application and kernel (gdb and kgdb)) Crash analyzer (kernel crash analyzer and application crash analyzer ) Memory leak detectors [combination of backtrace() system call with memory leak detector like boehmgc and leaktracer] Designing an application which can insert debugging information. In our future post we will discuss the useful features of above tools and how to develop them. We will have source code walk through of  tools (2, 3, 5 and 6).Information related to Tools mentioned in 2, 3 and 5,6,7 are very ...

When it comes to Operating systems used in hand held devices, Linux kernel dominates in the market. In gaming console market, Linux is not in good position. Popular Linux  distributions  in gaming market are 1.STEAM OS 2.Ubuntu Gamepack 3.Fedora Gamespin 4.Play Linux The idea is , we can modify the existing Linux distributions available for gaming on a powerful H/W. The popular gaming consoles available in market are Xbox, PS4 and Nintendo. Following pics will quick information about high level h/w architectures used in gaming market,