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A quickstart tutorial to the IAR Workbench IDE. Learn how to create a project, edit files, build solutions, and use the debugger.

Goals

To develop applications to run on the ez430 chip, we use the IAR Embedded Workbench IDE (integrated development environment). Not only does this application provide a powerful code editor, but it also allows a simple one-click deployment of the source code onto the MSP chip using USB as well as hardware debugging capabilities that allow you to trace through actual stack calls. This module is intended to give you an introduction to the IAR Workbench application so that you may create and develop your own ez430 applications.

Create a project

The very first thing you must do before you can start downloading any code onto the MSP, is to create a project in Workbench that will contain all of the relevant files for your application. When you open Workbench you should see the following window (This window is equivalent to selecting File->New->Workspace and then Project->Create New Project . This window may also be reached through Help->Startup Screen):

Startup screen

Select "Create new project in current workspace" to begin.
Next, the following window will appear:

Project template selection

Here we select the language in which we shall write our code. Select the 'C' file and then the 'main' option. In one lab, we will program in assembly; for that lab, select the "asm" option.
Now a Windows Save dialog should appear. Give your project a name and save it in its own seperate folder . A project is not only a C file that contains your code but also several other files (a project file with the ".eww" extention, a project settings folder, a debug folder which contains compiled code outputted by Workbench etc). Keeping the files for your current project in their own folder will help you stay organized. If you save and close your project, opening it again is as simple as opening this folder, and doubleclicking on the Workbench project file, which has a ".eww" extention.

Configure project options

Now, we must configure the project options. Make sure the project is selected in the "Files" pane to the left of the screen (the project is the top of the workspace's file tree). Then select Project->Options to get the following screen and make the indicated selections:

Project options setup: general options

Make sure you choose the right processor for your application! Here, I've selected the MSP4302013 (a member of the ez430 series) since that is the chip I plan to use.
Now select the "Debugger" option and make the following selections:

Project options setup: debugger

Here we must select to use the FET (Flash Emulation Tool) Debugger to run our code.
Finally select the "FET Debugger" option and make the following selections:

Project options setup: fet debugger

Now we select the "Verify Download" check box and the "TI USB FET" radio button (while leaving other options as they are) so that our program is properly transferred to the chip.
Your project is created, saved, and now you may write your code. Only one project may be open at a time.

Adding files to the project

If your project consists of more than one file, you will need to add it to the current project. To add a file to your project, choose Project->Add Files .

Run your program!

This is the part you've been waiting for: actually testing your program! Use the Project->Debug menu item to load the currently active project and set your program running. You can also set any breakpoints beforehand; by default, the very first line of executed code is set as a breakpoint. Now that you have started the debug process, the layout of the Workbench program changes slightly. A Debug menu and the "Disassembly", the assembly/machine code instructions at their specific memory addresses on the ez430, appear. To continue the execution of the program, select Debug->Go . If you would like to set breakpoints (in order to view the "path" of program execution or the values of specific variables or registers at a certain point during the program execution) click to the left of a line of code such that a red 'X' appears.

You can pause the debugger when the target is running if you would like to look at the value of certain variables. Select Debug->Break and open a watch window to examine the value of certain variables. It is suggested that you copy the variables you are interested in to temporary global variables. Because local variables go out of scope, it is uncertain if their correct value is maintained when the debugger is paused.

Debugging can be stopped using Debug->Stop . At this point, the watch window will not display your variable values. At this point, you may make any modifications to your program as necessary and restart the debugger from the beginning.

All of the necessary commands have shortcut icons as the following diagram shows:

Workbench: debug view

The program layout during debugging
Legend:
  • Make/Debug - This button will compile, load, and run the code onto the chip. This process happens rather rapidly so if the execution of this seems to hang, then something is wrong. Usually disconnecting the tool and/or restarting Workbench solves this problem. Don't forget to save first!
  • Go - This button is for the Go command in the debug menu; it tells the program to continue execution until the next breakpoint. The buttons to its left are other ways of traversing through breakpoints that you may experiment with.
  • Stop Debug - Selecting this will end the debugging process. If you want to modify your code then you must stop debugging first.
  • Dissassembly - This is a map of the memory space of the ez430 and where your code has been placed (in its compiled form).
  • Current Location - The Green Arrow/Green Highlighting indicates the current instruction being executed.

Good luck!

You're all set to start using the CrossStudio compiler to write embedded microcontroller code. Save often and remember that disconnecting and reconnecting or restarting the program will solve almost all interface problems that you encounter. Don't worry if breakpoints seem a little confusing now. We will go into more depth shortly and a good bit of practice is necessary to use them effectively.

Questions & Answers

can someone help me with some logarithmic and exponential equations.
Jeffrey Reply
sure. what is your question?
ninjadapaul
20/(×-6^2)
Salomon
okay, so you have 6 raised to the power of 2. what is that part of your answer
ninjadapaul
I don't understand what the A with approx sign and the boxed x mean
ninjadapaul
it think it's written 20/(X-6)^2 so it's 20 divided by X-6 squared
Salomon
I'm not sure why it wrote it the other way
Salomon
I got X =-6
Salomon
ok. so take the square root of both sides, now you have plus or minus the square root of 20= x-6
ninjadapaul
oops. ignore that.
ninjadapaul
so you not have an equal sign anywhere in the original equation?
ninjadapaul
Commplementary angles
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a perfect square v²+2v+_
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algebra 2 Inequalities:If equation 2 = 0 it is an open set?
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or infinite solutions?
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The answer is neither. The function, 2 = 0 cannot exist. Hence, the function is undefined.
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ramon Reply
Kristine 2*2*2=8
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Differences Between Laspeyres and Paasche Indices
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No. 7x -4y is simplified from 4x + (3y + 3x) -7y
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J, combine like terms 7x-4y
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what is the problem that i will help you to self with?
Asali
how do you translate this in Algebraic Expressions
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Need to simplify the expresin. 3/7 (x+y)-1/7 (x-1)=
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. After 3 months on a diet, Lisa had lost 12% of her original weight. She lost 21 pounds. What was Lisa's original weight?
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what is system testing?
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Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
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In this morden time nanotechnology used in many field . 1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc 2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc 3- Atomobile -MEMS, Coating on car etc. and may other field for details you can check at Google
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anybody can imagine what will be happen after 100 years from now in nano tech world
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after 100 year this will be not nanotechnology maybe this technology name will be change . maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
Azam
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
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how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
Damian
silver nanoparticles could handle the job?
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Azam
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Prasenjit Reply
At high concentrations (>0.01 M), the relation between absorptivity coefficient and absorbance is no longer linear. This is due to the electrostatic interactions between the quantum dots in close proximity. If the concentration of the solution is high, another effect that is seen is the scattering of light from the large number of quantum dots. This assumption only works at low concentrations of the analyte. Presence of stray light.
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the Beer law works very well for dilute solutions but fails for very high concentrations. why?
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Source:  OpenStax, Introduction to the texas instruments ez430. OpenStax CNX. Jun 19, 2006 Download for free at http://cnx.org/content/col10354/1.6
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