Error 50352

Driver Software>>NI-DAQmx Primary Software Version: 8.7 Primary Software Fixed Version: N/A Secondary Software: N/A Problem: I have a program that makes calls to the DAQmx driver and it is returning Error -50352 "Memory Cannot Be Allocated." How can I resolve this? Solution: This error code can result from numerous causes: Various known issues related to this error message have already been corrected - please try upgrading your DAQmx driver to the latest version. Trying to Start a task that has already been started can cause this error. Make sure that any calls to DAQmx Start Task are outside of the read/write loop. Also, if using more than one DAQmx Write, try wiring a false constant to the autostart input terminal in LabVIEW (or passing the equivalent parameter using the C interface). This error can also occur when LabVIEW cannot find a large enough contiguous block of memory in your RAM to allocate as a buffer for your sample acquisition. By default, DAQmx automatically configures the AI buffer based on your sample rate, but you can useDAQmx Configure Input Buffer to manually create a smaller buffer. Please see this KnowledgeBase article for more information on how DAQmx allocates buffer size.Note: When you create a smaller buffer, make sure that your LabVIEW application can read the samples off the buffer fast enough so that you do not encounter a buffer overflow error (Error -200279). Try moving the DAQ board to different PCI slots. Also, make sure the example programs that come with NI DAQmx work properly. This will help to determine if it is a hardware or a software problem. Ensure that you are clearing your task at the end of the program; if not, successive runs of the program may use up all of your system's memory, ultimately yielding this error. Related Links: Drivers and Updates: NI-DAQmxKnowledgeBase31T899KD: How Is the DAQmx Buffer Size Allocated for a Finite or Continuous Acquisition?KnowledgeBase4EPF28F9: Why Do I Get Error -200279 from my DAQmx Read VI or Property Node? Attachments: Report Date: 01/06/2009 Last Updated: 10/30/2014 Document ID: 4T5HAD8A Your Feedback! Poor|Excellent Yes No Document Quality? Answered Your Question? 1 2 3 4 5 Document needs work? Please tell us why. Please Contact NI for all product and support inquiries. My Profile | RSS | Privacy | Legal | Contact NI © 2014 National Instruments Corporation. All rights reserved. |

Support Support Newsreader MathWorks Search MathWorks.com MathWorks Newsreader Support MATLAB Newsgroup MATLAB Central Community Home MATLAB Answers File Exchange Cody Blogs Newsreader Link Exchange ThingSpeak Anniversary Home Post A New Message Advanced Search Help MATLAB Central Community Home MATLAB Answers File Exchange Cody Blogs Newsreader Link Exchange ThingSpeak Anniversary Home Post A New Message Advanced Search Help Trial software NIDAQmx error -50352 with Data acquisition toolbox Subject: NIDAQmx error -50352 with Data acquisition toolbox From: Yony Yony (view profile) 3 posts Date: 21 Jun, 2011 05:52:02 Message: 1 of 3 Reply to this message Add author to My Watch List View original format Flag as spam Hi I'm using PCI-6115 and Matlab http://digital.ni.com/public.nsf/allkb/00A43B6D38EB768E86257537000120BB Data Acquisition toolbox. Sometimes I get error -50352 "The requested memory could not be allocated" immediately after starting an analog input acquisition, but usually the program works fine. After the error, sometimes I have to restart the computer before my program will run properly. The memory I use is about 0.5Msamples for an analog output channel, and at most 1Msamples for analog input channels, well below the board memory (16Msamples). NIDAQmx is version 9.1. https://www.mathworks.com/matlabcentral/newsreader/view_thread/309512 My system also includes USB-6221, which doesn't generate the error. I also enabled the 3GB switch of Windows operating system (maybe its relevant) I'm not attaching the code since the program is quite long and complex Thanks Yonathan Subject: NIDAQmx error -50352 with Data acquisition toolbox From: Rob Purser Rob Purser (view profile) 146 posts Date: 29 Jun, 2011 09:25:25 Message: 2 of 3 Reply to this message Add author to My Watch List View original format Flag as spam Can you share a simplified version of the code that causes this? What version of MATLAB? What version of NI-DAQmx? -Rob Subject: NIDAQmx error -50352 with Data acquisition toolbox From: Yony Yony (view profile) 3 posts Date: 29 Jun, 2011 11:14:10 Message: 3 of 3 Reply to this message Add author to My Watch List View original format Flag as spam "Rob Purser" wrote in message ... > Can you share a simplified version of the code that causes this? What version of MATLAB? What version of NI-DAQmx? > > -Rob MATLAB R2010a, NI-DAQmx 9.1, Windows 7 32bit Concerning the code, the program is a GUI with more than 4,000 code lines, and usually it works well, so I cannot simplify it. It might be that the fault is some bug of mine, however, I wanted

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