Cuantos inport.vi y out port.vi puedo utilizar en un programa ....tengo limites

gracias ... es que estoy creando un programa en el que manejo el puerto paralelo del pc para escribir y leer informacion de un microcontrolador, utilizo muchos out port.vi y muchos in port.vi y al guardar me marca un error y no me deja grabar. adjunto el archivo de registro del problema
gracias si mepueden colaborar...
Adjuntos:
lvlog04-26-06-16-21-06.txt ‏1 KB

Hola, com ya se menciona, los VI's para leer y escribir a puerto no tienen restricción respecto a la cantidad de veces que estos pueden ser usados, pero existen algunos errores que pueden ser ocasionados, en el siguiente link se encunentra información sobre el uso de estos VI's, te recomiendo que leas la parte de errores comunes en la cual encontraras un segundo link que puede ser de tu ayuda.
http://zone.ni.com/devzone/conceptd.nsf/webmain/72c6fc6ce4ad4d1386256b1800794596
Me gustaría que mandaras nuevamente el archivo de del registro del error que comentas, ya que no lo encontré como disonible en el foro
Saludos,
Luis Trujillo
National Instruments

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Using the In port.vi and Out port.vi in LabVIEW access my the Cards(Home made)

Hi Everyone,
I have got the Cards (home made 8 bit and 16 bit ) plug in at slot ISA my PC (I am using the commands inport and outport (addressed with 318-31A Hex) in C language to access very good).This now,I want to use LabVIEW language to access data directly to Port at my the Cards. In LabVIEW, Can I access data to port using the In port.vi and Out port.vi located in the Advance?
My English is poor, you don't laugh when you read it.
Thank you a lot.

SachaE wrote:
> LabVIEW 7.0 cannot use the built-in In/Out Port VIs with a 32-bit
> address. Instead, you will have to use the versions of these VIs found
> in previous versions of LabVIEW.
Are you talking about physical memory access here? If so that is
something entirely different. The Intel x86 architecture uses a separate
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And at least up to the first Pentium models it was definitely never
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This of course has gotten a little more complicated nowadays with many
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address space. So eventhough a PCI board is more like an IO device it
often is accessed in the memory space.
> Actually, the In Port and Out Port VIs are intended for 16-bit port
> I/O and not for writing to arbitrary addresses in memory. For this
> reason, writing to 32-bit addresses never should have been allowed.
I think the VIs to access physical memory addresses were different than
the ones to access IO addresses. And yes it is definitely not a good
idea to have an application poke into physical memory as it could
completely screw the system to the point where you couldn't start it
anymore. Also IO devices mapped into memory address space are almost
always typically plug and play devices, so their address is not really
fixed and you need to do quite some more work on OS level to enumerate
your hardware and find the resources used before trying to access it.
This is something not really suited to try to do in LabVIEW and
therefore should be at least implemented as DLL but in fact anything but
a device driver is a very bad kludge.
> One possible work-around would be to use NI-VISA to perform
> register-level programming. NI-VISA gives you access to any PXI/PCI
> board, not only NI boards, and can be used to access the board's
> registers.
>
> http://zone.ni.com/devzone/conceptd.nsf/webmain/ADF3152837E2B4A486256B5600642AC7?opendocument
Thanks for this. Didn't now this existed in NI-VISA. Will check it out.
Rolf Kalbermatter
Rolf Kalbermatter
CIT Engineering Netherlands
a division of Test & Measurement Solutions

Problemas con out port y in port?

Hola a todos, mi pregunta es la siguiente no puedo usar out port, in port ya que no los encuentro, tengo win 7 Home Premium SP1, tambien intente en ,modificar la paleta pero al realizar todos los pasos no se guarda dicho VI, y tambien si me pueden ayudar con algunos ejemplos de como se recibe y se manda bits. Gracias de antemano agradezco su ayuda.

Que tal Servin,
Efectivametne, como tu mencionas, out/in port no funcionan después de Windows XP, por cuestiones de seguridad Windows desabilitó esa comunicación entre el sistema operativo y los puertos, por lo que se requiere de utilizar VISA para cualquier tipo de comunicación serial o paralela.
Como puedes ver en las siguietnes ligas, no están soportaods esos VIs desde Vista.
http://zone.ni.com/reference/en-XX/help/371361H-01/glang/out_port/
http://zone.ni.com/reference/en-XX/help/371361H-01/glang/in_port/
Ahora, te dejo estos documentos dobre como configurar y utilizar los puertos serie y paralelo con VISA:
http://zone.ni.com/reference/en-XX/help/371361H-01/lvinstio/visa_serial_parallel_ports/
Como podrás ver es muy sencillo, ya que VISA automáticamente detecta los puertos COM.
Ahora, te dejo otros documetnos particularmente del puerto paralelo, ya que actualmente no es tan común el uso de este:
http://digital.ni.com/public.nsf/allkb/B937AC4D8664E37886257206000551CB
y te dejo este documento para hacer un acceso directo a memoria para el puerto paralelo en SO donde no están soportados los VIs de out/in port:
http://digital.ni.com/public.nsf/websearch/953a4ab52663089d85256427004778c4?OpenDocument
Revisa esta información y quedo a tus órdenes.
Luis Fernando
National Instruments Cono Sur
Ingeniería de Campo y Consultoría
http://chile.ni.com/

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Posted to Belkin Support community to no avail
=====================
Why can't my Belkin Thunderbolt Express Dock operate my desktop speakers?
Options
07-14-2014 01:48 PM
Bought a Belkin Thunderbolt Express Dock at the Apple Store to use with my new MacBook Pro.
When I connected it to my
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Then made the last connection from the Dock to the Thunderbolt port on the MacBook Pro...
All was fine.
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Steve
========================================
Re: Why can't my Belkin Thunderbolt Express Dock operate my desktop speakers?
Options
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Steve

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discussed like ****
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Please, i am ready even to pay someone who will show the techique

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The Eyetv Hybrid from El Gato will do this, and it will export to old versions of iMovie. However, I did a test on analog 8mm passed through an 8mm digital 8.
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Probably still under warranty, but not for long. Take it to the Apple Store or AASP to have it checked ASAP.

"in port" and "out port" VIs are not in the functions palette!

Hi,
I am using LabVIEW 2012 on a Win 7 64 bit. I want to read a digital input (3.5V) using PC parallel port. I also read this white paper:
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They have not been supported for quite some time. What happens when you use the recommended VISA api?

Digital audio out port

I am having a problem, quite opposite to what most of what I've read about Mac audio port issues online, concerning my audio-out port. I'm running an Intel Imac, 7,1, running OS 10.5.8. The specs do specify the audio port on this mac is dual; analog and digital output. Everything I've read to date relates to the red optical light being stuck on coming out of the audio port. My issue is that I CANNOT, and I emphasize that, get the red light to come on and thus use my optical cable (it's working on other equipment) and connect it to my AV receiver. I have never in the past even thought about using an optical cable so it never was an issue. In fact I never knew the port was dual. The external speaker and headphones work fine and the audio panel in the preference pane reflects that; either says 'internal speakers' or 'headphones' automatically when engaging/disengaging audio phone jack. When I put in my toslink (optical) cable, the panel goes to 'headphones' instead of 'optical out' or 'digital out'. There is never a provision to click on digital out on either the sound panel or the midi setup panel. I've tried everything I can click on at both panels. Audio Output in midi setup says 'master stream' (always greyed out) and Source- either 'headphones' or 'internal speakers'. The default and system output drop downs never give me a 'digital' or 'optical' option. Everything works fine except that I cannot get the red light to shine and cannot get digital out at all. Any ideas? Maybe something in terminal or in openfirmware screen? Thanks.

have you tried other speakers or headphones and what version bootcamp drivers are you using?
Moses Kravitz wrote:
Does this port connect directly to appropriate digital speakers?
If so can someone recommend a decent set of digital speakers that will connect directly.
Or does the optical digital audio port connect to an amplifier or receiver and them to speakers?
With the suggestions i have below the set-up is like this:
Subwoofer - Connects to 2 (Stereo or technically 2.1) or 5 (5.1) speakers
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http://en.wikipedia.org/wiki/TOSLINK
Suggested Speakers; I Personally have 2 pairs of the Z-5500 set, true high quality audio and variety of settings for whatever you use them for, i have been so pleased by them and their warranty service is by far the best ever, anything ever happens to them, theyll send you a replacement set, logitech/apple great customer service, i also posted a few other priced ones if youre not looking for a huge set up:
The company site & Speakers: http://www.logitech.com/index.cfm/speakersaudio/home_pcspeakers/&cl=us,en
Compares a few models:
http://www.amazon.com/gp/comparison/ref=pdcp_ecmp/104-4843690-8241552?ie=UTF8&ASIN.1=B0002WPSBC&ASIN.2=B0002SQ0AE&ASIN.4=B0002 SQ2P2&ASIN.3=B0002SQ0A4&bf=0
and some others in that same field:
http://www.amazon.com/gp/explorer/B00007AKDP/2/ref=pdcp_esexpl/104-4843690-8241552
And you're going to need a TOSLINK cable to go from the audio port to the back of the control pods; found a nice cheap one
http://amazon.com/s/ref=srkk3/104-4843690-8241552?ie=UTF8&search-alias=aps&field-keywords=toslink%20cable
hope that helps!!
Message was edited by: AppleNewton

FPGA Compile error - Actual of formal out port cout cannot be an expression

Details:
ERROR:HDLCompiler:192 - "C:\NIFPGA\jobs\BPO5kq2_O6tyN2U\OC4_Sine_Cosine_LUT_Constant_Amplitude_dash_optimised_vi_c.vhd" Line 1408: Actual of formal out port cout cannot be an expression
ERROR:HDLCompiler:854 - "C:\NIFPGA\jobs\BPO5kq2_O6tyN2U\OC4_Sine_Cosine_LUT_Constant_Amplitude_dash_optimised_vi_c.vhd" Line 69: Unit <vhdl_labview> ignored due to previous errors.
VHDL file C:\NIFPGA\jobs\BPO5kq2_O6tyN2U\OC4_Sine_Cosine_LUT_Constant_Amplitude_dash_optimised_vi_c.vhd ignored due to errors
-->
The compilation gets to the "Estimated device utilisation" stage but then stops shortly after with a compilation error.
The Line in question (1408) relates to the output of a "Reinterpret FXP" node with the text
cOut => (others => '0'),
in the port map portion of the code. This corresponds to the output of the FXP reinterpret node being directly connected to an indicator in a sub VI whose output is then input directly to a high thoughput multiply node. The code is part of a sinus cosinus LUT I have programmed. It used to compile no problem but I think I know where the problem is. In one instance I only utilise the Sinus output of the algorithm and theoretically, Xilinx can optimise away the Cosinus part. I have two instances of this VI in my code and looking at the one NOT generating errors, the output is associated with a Cosinus indicator.
cOut => s_Cosine_2434,
It would seem that the pathway is essentially optimised away but the Xilinx compiler has a problem with the indicator being present on the sub-VI but the idnicator not being utilised anywhere. As such, the cOut gets set to an invalid value. I assume the immediate proximity of the FXP Reinterpret to the output of the sub-VI is an important aspect of this problem.
I think I know enough now to fix this problem (manually remove the path by duplicating the sub-vi) but this is perhaps a useful feedback for future bugfixes in the FPGA module. This isn't the first time this kind of incorrect code removal has given me problems but it's the first time I've been able to clearly locate the problem.
Shane
Say hello to my little friend.
RFC 2323 FHE-Compliant
Solved!
Go to Solution.

I am currently attempting a compile after changing some things.
Just a side question. Is this particular to the Reinterpret node or are other "pink nodes" also affected by this? If I don't connect the output of a high throughput add, will it result in the same behaviour?
PS OK, it seems to be compiling now. I managed to juggle around the nodes a bit in my sub-VI to make sure the "reinterpret" is not the last node before the indicator. It seems to be compiling now. A question which is in my head at this time is: Does the "reinterpret" node prevent anything before it from being optimised away by the Xilinx compiler? Are there other nodes which cannot be removed, even if the outputs are not being used? This would immediately seem to suggest to me that such nodes need to be as close to the source as possible in order to reduce the amount of code which cannot be removed as "dead code" during the Xilinx compile process.
Say hello to my little friend.
RFC 2323 FHE-Compliant

Audio out port is intermittent

I couldn't decide what category to choose, because my MacBook isn't "black and white". It is just white.
The audio out port (marked with headphone symbol) is intermittent with headphones or speakers. I can't say what causes it. Unplugging / plugging in again sometimes restores the sound, but more often it doesn't help. If the sound is anywhere but at the lowest level, I hear the typical momentary bzzzz sound when the plug is inserted, but no sound from the QuickTime file itself. If I unplug the speakers / headphones, the sound always works through the built-in speaker. The only login item is iTunesHelper. The only application open is QuickTime Player. Software Update shows "Your software is up to date". Disk Utility shows drive appears to be OK.
Is there a firmware update or audio port fix that doesn't appear in Software Update?

I have since found that this is a rather well-documented issue with MacBooks. Various solutions include sticking a toothpick in the jack and deleting prefs. None of this works with mine, as it didn't for many others, so maybe we have to wait for some firmware update that can fix the combo-digital-analog jack thing.

Cuantos inport.vi y out port.vi puedo utilizar en un programa ....tengo limites

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