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NI-HSDIO Dynamic Generation and Acquisition Shipping Example Triggering I am developing an application based upon the NI-HSDIO shipping example 'Dynamic Generation and Acquisition-Source Synchronous.vi'. In this example, the generation session is configured to export the Data Active Event to PFI 1 to serve as a start trigger for the acquisition session. The example URL: http://digital.ni.com/public.nsf/allkb/F6BE8B5B5588B60C8625723C006A240F

NI-HSDIO Dynamic Generation and Acquisition 範例程式 我在開發一個程式，是由 NI-HSDIO 範例程式 "Dynamic Generation and Acquisition-Souce Synchronous.vi" 修改而來，在這個範例中，負責做輸出的裝置被設定成輸出 Data Active Event 給 PFI 1 當作其他擷取裝置的 start trigger，這代表使用者必須要外部接線從 PFI 1 到 PFI 2 ，擷取裝置 URL: http://digital.ni.com/public.nsf/allkb/E917633EB4FA484D862573BB0022F688

看门狗定时器工作不正常 我正在使用PCI-6515工业数字IO板卡上的看门狗定时器功能，使得我的系统的数字输出在软件崩溃时能被设置为安全模式。但是，当程序被停止、取消、关闭或者LabVIEW退出时，数字输出并没有被设置为安全模式。看门狗功能仅仅在程序暂停或者计算机系统崩溃时 URL: http://digital.ni.com/public.nsf/allkb/7C803EBFCC439382862572240035662E

在LabVIEW7.1的NI-HSDIO1.4的niHSDIO Session Initialiation VI驱动中没有产生资源名 我在使用LabVIEW7.1或更老版本，现在安装了NI-HSDIO1.4 (或更新的版本)。为什么niHSDIO Init Acquisition/Generation Session的资源名没有自动出现？ URL: http://digital.ni.com/public.nsf/allkb/D7E055B40DDC854B482571DC000CD31E

HSDIO在使用外时钟时，动态发生产生错误的输出。 为什么当HSDIO使用外部时钟时，动态输出的信号是错误的？我把一个超过50MHz的信号接给了CLK IN，但是数字输出为60mV或是没有输出。 URL: http://digital.ni.com/public.nsf/allkb/83275E0EF860EBE2482571C000159C54

HSDIO Dynamic Generation with External Clock Gives Incorrect Output Why am I seeing an incorrect output when I dynamically generate a signal with an external clock on my HSDIO device? I am sending a reference clock above 50 MHz to CLK IN, but the digital output is only 60mV or nothing at all. URL: http://digital.ni.com/public.nsf/allkb/884C5A76BA1A474E8625717A0068AA09

외부클럭을 이용한 HSDIO 다이나믹 생성을 하면 잘못된 출력이 나옴. 왜 외부클럭을 이용한 HSDIO 다이나믹 생성을 하면 잘못된 출력이 나옵니까? CLK IN에 50MHz 이상의 참조클럭 보내고 있으나, 디지털 출력은 60mV만 나오거나 혹은 전혀 나오지 않습니다. URL: http://digital.ni.com/public.nsf/allkb/EFFA706F2C658D8F8625719A0001DFC2

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

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

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