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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

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
Do somebody tell me a best nano engineering book for beginners?
s. Reply
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
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Harper
Do you know which machine is used to that process?
s.
how to fabricate graphene ink ?
SUYASH Reply
for screen printed electrodes ?
SUYASH
What is lattice structure?
s. Reply
of graphene you mean?
Ebrahim
or in general
Ebrahim
in general
s.
Graphene has a hexagonal structure
tahir
On having this app for quite a bit time, Haven't realised there's a chat room in it.
Cied
what is biological synthesis of nanoparticles
Sanket Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
China
Cied
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
Porter
many many of nanotubes
Porter
what is the k.e before it land
Yasmin
what is the function of carbon nanotubes?
Cesar
I'm interested in nanotube
Uday
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
AMJAD
preparation of nanomaterial
Victor Reply
Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
Himanshu Reply
good afternoon madam
AMJAD
what is system testing
AMJAD
what is the application of nanotechnology?
Stotaw
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
Azam
anybody can imagine what will be happen after 100 years from now in nano tech world
Prasenjit
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
Prasenjit
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
Damian
silver nanoparticles could handle the job?
Damian
not now but maybe in future only AgNP maybe any other nanomaterials
Azam
Hello
Uday
I'm interested in Nanotube
Uday
this technology will not going on for the long time , so I'm thinking about femtotechnology 10^-15
Prasenjit
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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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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