NI USB DAQ的USB 1.1和USB2.0 的兼容性
1 或者USB2.0？ 解答: 所有的NI USB数据采集设备都兼容USB2.0，在USB2.0中存在着三种速度标准：低速（1.5Mb/s传输率），全速（12Mb/s），高速（480Mb/s）。NI USB数据采集设备属于高速和全速类型。对于全速的设备，在支持USB2.
URL: http://digital.ni.com/public.nsf/allkb/71B7CA43258231FF4825718500148CFA
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在安装完NI-DAQmx 7.5或以后版本，为何我在MAX中'DAQmx Devices'下无法看到我的USB-6008, -6009, or -6501？
我安装了NI-DAQmx 7.5或以后版本，因此可以使用USB-6008, -6009, or -6501设备。然而，我无法在MAX中'DAQmx Devices'下看到这些USB设备。而且，当我试着在MAX中创建一个任务，我的USB没有在支持的物理通道列表中出现。除此之外，我的USB设备在'DAQmx create channel.vi'中的通道常数■>
URL: http://digital.ni.com/public.nsf/allkb/B17A7EBD36B3F69048257171002D1513
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用NI-DAQmx或者NI-DAQmx base来使用USB-6008/9和USB-6501
我过去一直用NI-DAQmx base来使用USB-6008/9和USB-6501，现在我想用NI-DAQmx 7.5来使用。我应该如何配置这个设备才能使用NI-DAQmx呢？
URL: http://digital.ni.com/public.nsf/allkb/D1AF7ACA9C730ED7482571700014ED52
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NI-DAQmx USB Driver Selector 옵션이 없습니다.
USB-600x 또는 USB-6501 를 가지고 있습니다. 그런데 DAQmx 드라이버와 DAQmx Base 드라이버를 바꾸어주고 싶습니다. 그러나 Measurement and Automation Explorer 에 가서 Tools NI-DAQmx Configuration >> the NI-DAQmx USB Driver Selector 옵션을 선택할수가 없습니다.
URL: http://digital.ni.com/public.nsf/allkb/7DA2AB7E5AFF04CC86257141000D322C
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Firmware en la USB-6008/6009/6501
¿Cómo se qué versión de firmware está instalado en mi USB-6008, USB-6009 ó USB-6501? Para poder usar NI-DAQmx Base necesito una versión y para usar NI-DAQmx 7.5 o superior necesito otra. ¿Cómo puedo usar ambos firmware en mi dispositivo?
URL: http://digital.ni.com/public.nsf/allkb/CCD295986B732FF2862572B9000012AA
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USB-6501の出力ドライブタイプ（アクティブドライブとオープンコレクタ）
USB-6501を使って、5VのTTLではなく、3.3V(LVTTL, Low Voltage TTL)の信号を出力しようとしています。マニュアルに、ソフトウェアを使って、デフォルトのオープンコレクタ(Open Collector, TTL)をアクティブドライブ(Active Drive, LVTTL)に設定することができるとあります。 ど
URL: http://digital.ni.com/public.nsf/allkb/A9A23C432DA402508625722E00063919
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USB-6501 Benchmarks with NI-DAQmx
Problem: What are the benchmarks for the USB-6501? Solution: The data transfer rates of the USB-6501 are software timed, also called unstrobed or nonlatched, and do not require status and control signals so the transfer speed are completely software/computer dependent.
URL: http://digital.ni.com/public.nsf/allkb/376BBB979269F9C5862570F7006A030F
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USB-6501를 NI-DAQmx로 밴치마크
이들 속도는 프로그래밍 언어와 코드의 효율성, CPU 사용, 데이터 전송방법 등등에 의해 변동될 수 있습니다. 아래는 USB-6501로 10,000번의 업데이트를 테스트한 밴치마크 결과입니다.
URL: http://digital.ni.com/public.nsf/allkb/4DA471790687E5B2862571070005CB65
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Configuring the NI-USB 6009, 6501, and 62xx to be Open-Drain or Push-Pull
How do I configure the digital output lines of the NI-USB 6009, 6501, or 62xx to be open-drain or push-pull?
URL: http://digital.ni.com/public.nsf/allkb/D9B4018C3E540CE4862570F30068C0DB
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Maximum Transfer Rate of the USB-6501 on the USB 2.0 Bus Interface
I just purchased a USB-6501 rated for the USB 2.0 bus interface which has maximum speed of 12Mb/s. According to USB standards, USB 1.1 bus interface has a maximum speed of 12Mb/s, whereas USB 2.0 can transfer up to 480 Mb/s. Is the USB-6501 mislabeled? Why is there a discrepancy in the maximum
URL: http://digital.ni.com/public.nsf/allkb/BC2F371917E2CFC6862570E700555501
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