Keypads in MultiSim 10.1.372 - no MCU

(** This is with the current trial version, ** )
Hello, I'm trying to use any of the keypads in a "non-MCU" circuit
I.e. I copied the keypad, the Vcc and the ground from the samples Calculator project to a new circuit.
I added probes to each output line of the keypad, and ran the simulation.
Activating any of the buttons does not activate any of the probes.
I created another circuit and added AND gates connected to each keypad output and Vcc, still no output on the probes.
Do the keypads only work with an MCU ?
Mike

Hi Mike,
Here is a drawing for the 4x4 keypad. The attached Mutlisim file, press the number 7 and the LED should turn on.
Tien P.
National Instruments
Attachments:
keypad example.ms11 ‏40 KB

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All right, you can adjust the size of the symbols -- but it makes the GUI look like a PONG game on an Apple II+

jackinnj,
You can reset the icons and customize the GUI to your liking...
From the menu, go to Options -> Customize User Interface
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Regards,Patrick Noonan
Business Development Manager
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50 Market St 1-A
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Phone: 207 892-9130
Email: [email protected]

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Assembly delay's do not work in Multisim MCU

Hi everyone. It's been along walk to finally create an account and post this problem here, but after countless hours and researching i'm out of ideas.
Here is the problem:
When using multisim MCU for PIC's, I have never, ever been able to make delays work with assembly. I have been working with the microchip microcontrollers for years now but never used them within multisim until now.
The main problem is, well, the delays just dosn't work. As soon as I insert a delay loop into any code in multisim, the I/O pins just go to high and stay there.
For example, let me show my problem using the following example (included with .ms13 and .asm file):
Lets set up 16f84a to blink all outputs with a ~500ms delay. Probes are used as indicators aswell as logic analyser. This code has been tested in other software, for example MPLABX and it works fine there.
All help is much appreciated
Attachments:
16f84a_delayTEST.ms13 ‏176 KB
16f84adelay_test.txt ‏2 KB

Hi James,
Your code is working but the simulation is slow so I reduced the delay time a lot, I made the changes to the following lines and now you can see the probes flash.
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Tien P.
National Instruments
Attachments:
delay.txt ‏2 KB

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Hello,
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Hello Euler’s Identity:
I’d like to address some of the frustrations you present in your above post (in addition to the email responses you’ve received from our AEs and myself). I’m very sorry to hear that you’ve had a negative experience with the software. As always, our Applications Engineers would be very happy to assist you with any specific technical issues you might be having (I didn’t see any in the original post, and I believe the issue with the LM311 was addressed earlier today.):
I’d like to provide some of the recent history of the Electronics Workbench line of software (Multisim, Ultiboard, Multisim MCU Module). Electronics Workbench was acquired by National Instruments (NI) in February of 2005 for two primary reasons:
1.)     Provide a World-Class Software and Hardware Solution for Teaching Electronics Education
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The Multisim SPICE simulation environment integrates tightly with NI measurement technology such as LabVIEW to provide a seamless transfer of simulation and real-world test data. Professional engineers can now more easily validate designs using simulation data as a benchmark and even create more accurate simulations using real-world data as stimuli.
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The NI Electronics Workbench Group team is passionate about making world-class capture, simulation, and layout products both for education and for professional design. As always, we welcome your constructive feedback to continue to improve these products over time, and we will do everything we can to ensure that you have a good experience with the product.
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Director of Sales & Marketing
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Components for MultiSim

Hi,
Can anyone point me, or send me, to a site where I can download the Intel family' components, including 8088, 8086 and their interfacing IC's, to add them to the MULTISIM.
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Salah

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I am sorry, but I don't have any footprints for any of these IC and I didn't mean for my post to sound like that I did. I was just wanting to let you know about the simulation issue in case that was what you were trying to do. You may end up having to create one from the datasheet. That shouldn't be too hard with the component wizard if you are only using them for PCB work since you don't have to worry about the simulation end of things.
I wish I could have been more help, but this is all I know on this matter
Kittmaster's Component Database
http://ni.kittmaster.com
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Help with 4x4 keypad

hi guys, im trying to create a calculator for our project using multisim. im almost done with all the operations and now whats left is using the keypad. can someone help me build a functioning keypad without using microcontrollers? i was able to make one but there seems to be some problems with it. help pls.

Hi there,
Click here to open a previous post with a similar question.
Regards,
Fernando D.
National Instruments

MCU Module Version 10.1

I ususally don't have very many questions, but here is one about something I just noticed this recently when examining a MCU Circuit I had on my drive
I was using Multisim Power Pro Version 10.0.1 with the MCU Module. I recently went to Version 10.1 and was sent a disk for this. I installed Version 10.1 and removed Version 10.0.1. Now when I try to build an assembly file in the MCU ModuleI get the following error:
Multisim - 2008-08-06 21:49:36
--------------------------Building: Project: project1---------------------------
Error: Unable to run assembler. The Microchip MPASM(TM) Assembler is not installed with this version of the product. Please contact National Instruments at [email protected] for more information.
None of my options are greyed out inside the MCU tab and I am able to place MCU's and create projects and also enter code, but it won't build it due the the above error.
If I had the MCU Module in Version 10.0.1 should I not still have this? Did I mess something up when I removed 10.0.1? If I did mess something up, how can I correct this without making a mess of my 10.1 install? I don't use the MCU Module that often, but I do use it.
Thanks for any information or help on this in advance.
Kittmaster's Component Database
http://ni.kittmaster.com
Have a Nice Day

Does anyone have an answer to this poster's problem yet?
I have noticied a worrisome lack of knowledge about the MCU Module on the NI Product pages after the deployment of Circuit Design Suite (Multisim) 10.1.
I was just about to upgrade my 10.0.1 installation, but haven't for fear that my MCU module also might be compromised -- does anyone know what's going on here?
What's the deal with the MCU module and (apparent) lack of any info on the NI Product Pages with version 10.1? It's quite a useful module, and would make no sense at all for NI to just remove its offering, and disable its functionality for all of us paying customers.
Also, I came across the following statement in a document in the Developer Zone:
" * In Multisim Full and Multisim Power Pro, professionals are unable to compile PIC16F84(a) assembly code. "
What sense could it make for this functionality to be made available to students but *not* to paying professionals? (not that I'm against making it available to students...)
(location: http://zone.ni.com/devzone/cda/tut/p/id/5682)
If anyone has any more info about the MCU module, or how to upgrade to Circuit Design Suite 10.1 without disabling the existing MCU functionality (such as the initial poster appears to be experiencing) -- and if the MCU functionality *is* compromised, just in which ways has it been reduced in v10.1 -- posting that info here would be greatly appreciated.
Thanks for your time and effort!

Can't find some components in multisim Component master Database

Hi,
I Couldn't find the following components in the multisim database during schematic design phase of my circuit.
Can you please provide the models for the components or point me the location and method for manually designing a new component.
The attachment has all the information about the circuit and the component connections..
STM32F103CB
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Attachments:
crazyflie_control_board_schematics_rev.f.pdf ‏213 KB

narendravarma,
> Can you please provide the models for the components
Typically SPICE models won't exist for most MCU parts, the others you may not be able to find models for.
> or point me the location and method for manually designing a new component.
Creating the models can be difficult, but its relatively easy to create the symbol/pinout for these parts and attach the symbol pins to an existing or new footprint (for layout).
Multisim only (create symbol, connect a model (optional) and connect a footprint (optional):
http://www.ni.com/white-paper/3173/en/
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http://www.ni.com/white-paper/5631/en/
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i need a good simulator but i need to know that the multisim 10 supports not only the pic16f84/a. it seems funny to ask but by what i read the only mcu that is listed is this.
is it true?, will i need to add money to get other microchip mcu's?
thanks for your help, ran.

I am not sure I can aswer your question but I'll try. I would assume until I hear differently that this PIC was chosen because it is probably the one that is most popular to use in applications and/or learning situatiions. I am also going to assume that if I can learn to program this PIC then programming other PICS should not be that difficult. There may be minor differences in ports and memory, but It should transfer well to other PICS. So you can learn to use and program this PIC and I guess transfer it to other PICs in reality. If nothing else you will at least have a platform for code testing and circuit simulation using a PIC before actulally burning one.
I am new to this module as well, so what I have told you is just my thoughts and are not be taken as the only explanation.
Have a Nice Day
Kittmaster's Component Database
http://ni.kittmaster.com
Have a Nice Day

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Hello!
I'm just used Multisim 10 Evaluation Version. I got a problem with the simulation of Microcontroller Unit, the PIC16F84A. I got a circuit, and try to simulated it with my assembly source file. But when I try to simulate it I got an error of:
Multisim - 2007-05-11 21:21:41
----------------------------Building: Project: act3-----------------------------
interupt.asm
Note: Due to path length limitations in the Microchip MPASM for PIC16, the path D:\National.Instruments.Circuit.Design.Suite.v10.0.Power.Pro\interrupt\interrupt\interrupt\act3\ has been mapped to the drive Z: temporarily for this operation.
Error: Unable to run assembler.
How can I fix this? What are the settings before running a MCU simulation?
I've attached my circuit below.
Thank you.
Message Edited by hala_oi on 05-11-2007 08:31 AM
Message Edited by hala_oi on 05-11-2007 08:45 AM
Attachments:
inter.jpg ‏67 KB
inter.jpg ‏67 KB

Hi CheValier,
I just found out that the MCU compiler does not simulate on Vista or a 64 bit OS and you will get this message:
D:\National.Instruments.Circuit.Design.Suite.v10.0.Power.Pro\interrupt\interrupt\interrupt\act3\ has been mapped to the drive Z: temporarily for this operation.
Error: Unable to run assembler.
I know that R&D have fixed this issue and will likely be available in future release.
Tien
Message Edited by Tien P on 05-31-2007 10:01 AM
Tien P.
National Instruments

MCU programme

Hi
I am new to multisim MCU programming. I am trying a simple example on PIC 16F84 MCU using assembly.
I get the following warning after building the assembly programme.
-----------------------------Building: Project: e1------------------------------
e1.asm
Note: Due to path length limitations in the Microchip MPASM for PIC16, the path E:\MCUexperimentsmultisim\example1\e1\ has been mapped to the drive Z: temporarily for this operation.
Message[302] Z:\E1.ASM 14 : Register in operand not in bank 0. Ensure that bank bits are correct.
Assembler results: 0 - Errors, 1 - Warnings
I have attached the programme. I would appreciate if someone can point out the errors in it.
Many thanks
Mal
Attachments:
e1circuit.JPG ‏220 KB
e1circuit2.JPG ‏157 KB

If it is the "Register Not in Bank 0" error message, then I was told by an engineer here in the US that this was normal and could be ignored. They told me that the assembler is just reminding you to check to make sure you have switched banks correctly.
I think this is problematic in the sense that when you are trying to debug your program any errors that pop up needs to be examined. If the assembler is popping up "bogus" error messages then it makes it difficult to track down your actual error. This leads to chasing ghosts in the program. Believe me I have been there and done that.
Kittmaster's Component Database
http://ni.kittmaster.com
Have a Nice Day

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National Instruments

Keypads in MultiSim 10.1.372 - no MCU

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