<< Chapter < Page Chapter >> Page >
Simulate Pulse Width Controller

Set the run-mode switch to down. Set the simulation run time to 500 . Run the simulation and observe the pulse output.

  • Make sure the run-mode switch is positioned down to run it in continuous mode.
    To make the simulation run continuously, flip the switch driving"Single-Step Simulation"down; when the switch is up, the simulation pauses after every clock cycle. Note each microcontroller instruction takes two cycles. The block named"PicoBlaze Instruction Display"shows which instruction is executing at the moment. Turning on the microcontroller's"Display Microcontroller Internals"checkbox causes internal values to be made visible.
  • Set Simulation -> simulation parameters to run for 500
  • Hit the Run button so the entire simulation is running.
    The simulation results of results1 scope will be seen as shown below

    Figure 19-3 simulation results of continuous run

    Channel 1 is the output pulse | Channel 2 is the port ID | Channel 3 is the read strobe | Channel 4 is the write strobe.
  • Change the pulse_width constant to 8 in the assembler code and re-compile the code using the perl script
  • Run the simulation and confirm the output pulse width has changed.
    If the switch is set in the continuous mode and the input-value is set to 0 then the design run continuously.

    How can the design be changed so that in continous mode you can specify the number of cycles it runs for can be changed?

    Use the STEP source and specify the amount of time the output is Low for

  • Implement this change in the design so you can run for 100 clock cycles

Questions & Answers

Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
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
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
what school?
biomolecules are e building blocks of every organics and inorganic materials.
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
sciencedirect big data base
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.
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
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
characteristics of micro business
for teaching engĺish at school how nano technology help us
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
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
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.
what is the actual application of fullerenes nowadays?
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.
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.
is Bucky paper clear?
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
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.
Do you know which machine is used to that process?
how to fabricate graphene ink ?
for screen printed electrodes ?
What is lattice structure?
s. Reply
of graphene you mean?
or in general
in general
Graphene has a hexagonal structure
On having this app for quite a bit time, Haven't realised there's a chat room in it.
what is biological synthesis of nanoparticles
Sanket Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
Privacy Information Security Software Version 1.1a
Got questions? Join the online conversation and get instant answers!
Jobilize.com Reply

Get the best Algebra and trigonometry course in your pocket!

Source:  OpenStax, Xilinx university program: professor workshop. OpenStax CNX. Jun 24, 2004 Download for free at http://cnx.org/content/col10233/1.1
Google Play and the Google Play logo are trademarks of Google Inc.

Notification Switch

Would you like to follow the 'Xilinx university program: professor workshop' conversation and receive update notifications?