Buffer of PCI-MIO-16E-1 acquisition card

I am using a PCI-MIO-16E-1 acquisition card, and in the manual it says that it has a FIFO buffer of 512 samples. Is this the total buffer of my card? (I guess it should be larger). If I take more samples than can fit in the buffer in a single acquisition, what happens to the extra samples acquired? Are they stored in the computer memory?
Thank you

The PCI-MIO-16E-1 actually has a FIFO buffer size of 2048 samples. The hardware buffer size is not a limitation of how many samples you can read at a time. FIFOs are often used on DAQ devices to temporarily store incoming or outgoing data until that data can be read or written. For example, an analog input FIFO stores the results of A/D conversions until the data can be read into system memory.
So, the FIFO on the device will just hold the data temporarily until the computer can transfer the data to computer memory. FYI: When you programmatically set the buffer size in your application, you are setting the software buffer size in computer memory and that has nothing to do with the FIFO size. You don't have to worry about the FIFO within your program. I hope th
is helps.
Regards,
Todd D.
Applications Engineer
National Instruments

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370503f.zip ‏1260 KB

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"Dr. Imad" wrote in message news:<[email protected]>...
> my understanding is that you are generating a sine wave (on one of the
> anlogoutput channels) and you are trying to read the signal.
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Hello;
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Gino,
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The following numbers were derived from a Gateway with 128 MB-RAM and an Athlon 700 for ONE counter of the PCI-6602. The number of counters you are using will affect these numbers.
Finite Buffer
Buff Period - 7.25 MHz
Buff Pulse Width - 7.25 MHz
Buff Semi-Period - 3.35 MHz
Continuous Buffer
Buff Period - 250 kHz
Buff Pulse Width - 250 kHz
Buff Semi-Period - 140 kHz
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Title:
After Long Periods of Acquisition with AI and Counters, a -10920 Error Occurs
Problem:
A customer has a PCI-MIO-16E-4 and his application is acquiring analog input signals and performing event counting with the buffered event counting mode. The problem is that the buffered event counting is at some arbitrary amount of time (e.g., after 2 days) getting an error with the number -10920. The questions are:
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2. Do you know how big the FIFO is for this buffered event counting?
3. When he shares a DMA channel with the floppy controller, how can we make sure they use separate DMA channels?
Solution :
Here are the answers to the above questions:
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http://digital.ni.com/public.nsf/websearch/8FB9091CB9BB452B8525642000554799?OpenDocument
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XD Gao
Applications Engineering,
National Instruments
Attachments:
Simul_AIAO_Buffer(E-series).vi ‏104 KB

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National Instruments

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Hi,
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Brandon Li wrote:
> Hi,
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>
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Hello;
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http://zone.ni.com/devzone/conceptd.nsf/2d17d611efb58b22862567a9006ffe76/6f25cba2cd73417786256869005e5fc3?OpenDocument

Question about setup_MITE in the PCI-MIO-16E-1

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Christian
Christian Loew, CLA
Principal Systems Engineer, National Instruments
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Buffer of PCI-MIO-16E-1 acquisition card

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