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This is the lab assignment portion for the C Programming lab.

Skills

This laboratory deals with compiling and running a C program on the TMS320C6713 DSP using Code Composer Studio. By the end of the laboratory you will be able to:

  • Compile and build a C language program
  • Run a C language program on the TMS320C6713 DSP
  • Link multiple files with functions into one project

Reading

Description

If you have forgotten how to program in C/C++ you should review C programming on the many tutorials on the internet or look through your favorite textbook or reference book. This document will not give you a tutorial on how to program in C/C++.

You must remember that when programming the TI DSP you are loading your program into a system that has its own DSP and memory and is apart from your computer. In order for you to print anything, the data must be sent from the DSP board to CCS and then displayed in the stdio display. This can be very slow so you will want to use the debugging tools to view variables.

In this lab you will be writing very simple C programs. If you want to print something you will obviously need to include the stdio.h file.

Your main program should look like:

#include<stdio.h>main() {variables code}

Be sure to use good programming style.

Pre-laboratory

Write a C program that performs a dot product of the following vectors. The data for a and b should be stored in integer arrays. Use a for loop.

a = [1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30]

b = [30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1]

y = k a k b k size 12{y= Sum cSub { size 8{k} } {a rSub { size 8{k} } cdot b rSub { size 8{k} } } } {}

Laboratory

Part 1

  • In this part you will create a project that performs the array multiply and sum within the main function of the program. In order to be able to accurately count clock cycles, use the C6713 simulator.
  • Create a new project, call it clab.
  • Create your C file. Call it main.c . Add this file to your project.
  • You should use the following options for the project (Project->Build Options):
  • After the project has been loaded, record the values in the variables at each step as you single step through the program. Count the number of clock cycles and compare to the assembly program completed in a previous lab. Be sure to zero the counter before stepping through your code.

Part 2

  • In this part you are going to write a function that performs an array multiply and sum algorithm and returns the sum. This function will be located in another file and you will also make a header file.
  • Create a C file called multsum.c . In this file make a function called multsum . The function should have as inputs:
  • pointer to integer array a
  • pointer to integer array b
  • number of elements in the arrays
  • The output of the function should be the integer sum. The function should perform the multiply and sum algorithm.
  • Create a header file for the multsum function and call it multsum.h . In the header include the following code:
#ifndef _MULTSUM_H_ #define _MULTSUM_H_extern int multsum(int *a, int *b, int length); #endif /*MULTSUM_H_*/

This uses some compiler directives to determine if the current header file has already been included by another include file. The macro _MULTSUM_H_ is not defined the first time it is encountered so the macro is defined and the definition is included. The extern keyword tells the compiler that the function is defined in another file.

  • In main.c :
  • include the multsum.h file
#include "multsum.h"
  • declare the a and b arrays
  • call the multsum function with the sum returned to a variable
  • Include the multsum.c file in your project.
  • Run the program and verify that the sum that is returned is correct.

Questions & Answers

where we get a research paper on Nano chemistry....?
Maira Reply
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
Google
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
revolt
da
Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
Jyoti Reply
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Dsp lab with ti c6x dsp and c6713 dsk. OpenStax CNX. Feb 18, 2013 Download for free at http://cnx.org/content/col11264/1.6
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