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Part 4

  • In this part you will add a semaphore to the program. One task will pend on the semaphore and the other will post to the semaphore.
  • Have in your system two TSKs with the following properties
  1. Name: TSK0 , priority: 1, function: _funTSK0 .
  2. Name: TSK1 , priority: 1, function: _funTSK1 .
  3. TSK0 pends on the semaphore and TSK1 posts to the semaphore in the loop.
  • Have in your system a semaphore with the following properties
  1. Name: SEM0, initial value: 1
  • Name your new main file main4.c .
  • Remove the task yield from each task.
  • Use SYS_FOREVER for the timeout on the pend.
  • Put TSK0 first in the priority list in the configuration file. This will cause it to run first.
  • Start the debug session.
  • Open the log view by selecting Tools->RTA->Printf Logs .
  • Run the program and record the results.

Part 5

  • In this part you change the initial value on the semaphore and observe what happens.
  • Have in your system two TSKs with the following properties
  1. Name: TSK0 , priority: 1, function: _funTSK0 .
  2. Name: TSK1 , priority: 1, function: _funTSK1 .
  3. TSK0 pends on the semaphore and TSK1 posts to the semaphore.
  • Semaphore with the following properties
  1. Name: SEM0, initial value: 2, 3 (run multiple times to get these).
  • Change the semaphore initial value to 2.
  • Start the debug session.
  • Open the log view by selecting Tools->RTA->Printf Logs .
  • Run the program and record the results.
  • Run the program with different SEM0 initial values.
  • What happens with the different initial values?

Part 6

  • In this part you will make the task that posts to the semaphore a higher priority.
  • Two TSKs with the following properties
  • Have in your system two TSKs with the following properties
  1. Name: TSK0 , priority: 1, function: _funTSK0 .
  2. Name: TSK1 , priority: 2, function: _funTSK1 .
  3. TSK0 pends on the semaphore and TSK1 posts to the semaphore.
  • Semaphore with the following properties
  1. Name: SEM0, initial value: 1
  • Make the task that is posting a higher priority than the other.
  • Start the debug session.
  • Open the log view by selecting Tools->RTA->Printf Logs .
  • Run the program and record the results.

Part 7

  • In this part you will make the task that pends on the semaphore a higher priority.
  • Have in your system two TSKs with the following properties
  1. Name: TSK0 , priority: 2, function: _funTSK0 .
  2. Name: TSK1 , priority: 1, function: _funTSK1 .
  3. TSK0 pends on the semaphore and TSK1 posts to the semaphore.
  • Semaphore with the following properties
  1. Name: SEM0, initial value: 2
  • Start the debug session.
  • Open the log view by selecting Tools->RTA->Printf Logs .
  • Run the program and record the results.

Part 8

  • In this part you will run the code that is given for each task and then document for each step through the code the state of the tasks and semaphore and any output that is printed.
  • Have in your system two TSKs with the following properties
  1. Name: TSK0 , priority: 1, function: _funTSK0 .
  2. Name: TSK1 , priority: 1, function: _funTSK1 .
  • Put TSK0 first in the priority list in the configuration file. This will cause it to run first.
  • Semaphore with the following properties
  1. Name: SEM0, initial value: 1
  • Use the followng code for your tasks.
void funTSK0() {LOG_printf(&trace,"TSK0 Starting"); SEM_post(&SEM0); LOG_printf(&trace,"TSK0 1"); SEM_pend(&SEM0,SYS_FOREVER); LOG_printf(&trace,"TSK0 2"); SEM_pend(&SEM0,SYS_FOREVER); SEM_pend(&SEM0,SYS_FOREVER); LOG_printf(&trace,"TSK0 3"); SEM_post(&SEM0); LOG_printf(&trace,"TSK0 Finish"); }funTSK1(){ LOG_printf(&trace,"TSK1 Start"); SEM_post(&SEM0); LOG_printf(&trace,"TSK1 1"); SEM_pend(&SEM0,SYS_FOREVER); SEM_post(&SEM0); SEM_pend(&SEM0,SYS_FOREVER); LOG_printf(&trace,"TSK1 2"); LOG_printf(&trace,"TSK1 Finish"); }
  • Fill out the following table as you run your program.
Code Line # TSK0 State TSK1 State SEM0 Output
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18

Laboratory write-up

  • For each part of this lab, explain the setup of the objects and what they are doing. Explain the results in great detail showing values for things like the semaphore count and why the task is running.

Questions & Answers

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
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
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
research.net
kanaga
sciencedirect big data base
Ernesto
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
Daniel
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
Maciej
characteristics of micro business
Abigail
for teaching engĺish at school how nano technology help us
Anassong
How can I make nanorobot?
Lily
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
NANO
how can I make nanorobot?
Lily
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
s.
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
Tarell
what is the actual application of fullerenes nowadays?
Damian
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
Tarell
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
Virgil
is Bucky paper clear?
CYNTHIA
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
NANO
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Source:  OpenStax, Ti dsp/bios lab. OpenStax CNX. Sep 03, 2013 Download for free at http://cnx.org/content/col11265/1.8
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