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Change Detection Considerations When Using DMA I am running the NI-DAQmx example for change detection on a device with a digital port of 8 bits. In some cases I only get an update after my generating device's digital lines have changed state 4 times, and in other cases I receive the NI-DAQmx error -200284. The lines to be detected are URL: http://digital.ni.com/public.nsf/allkb/53A4386656BBDC34862570DE005FDF77

在使用DMA进行变化检测(Change Detection )的时候的注意事项 我使用了板卡的一个8位的数字端口运行NI-DAQmx的变化检测的范例。有时候，板卡的数字输出端口已经改变了四次状态，而我只能获得一次状态的更新。而另一些时候，还返回NI-DAQmx错误-200284。我要检测的数字端口状态改变了，那么为什么我检测不到状态的变化呢 URL: http://digital.ni.com/public.nsf/allkb/EADF02A4BED306D7862573CA00459466

NI 653x（高速デジタルI/O)デバイスのStop Trigger端子の使い方 PXI-6533などの653xシリーズ高速デジタルI/O（ハイスピードDIO）デバイスのStopTrig（停止トリガ・ストップトリガ）にパルスを入力しましたが、集録が止まりません。これはどうしてですか？ URL: http://digital.ni.com/public.nsf/allkb/992F98DC6BC8C77D862570CF00211A09

Buffer Size Property Returns a Value Less Than Number of Samples to Acquire When performing a finite acquisition, why is the value returned by the NI-DAQmx buffer size property not the same as the number of samples to acquire? URL: http://digital.ni.com/public.nsf/allkb/A56D068B1E0E708C8625705E006F762A

버퍼사이즈 프로퍼티 값이 설정한 Number of Samples to Acquire 값보다 작은값을 출력합니다. Finite Acquisition을 할때, 왜 NI-DAQmx버퍼 프로퍼티에 의해서 출력되는 값은 Number of Samples to Acquire 값과 다릅니까? URL: http://digital.ni.com/public.nsf/allkb/8AE0EF97D154AC4F8625706D0000DE4C

Low Cost USB 보드를 NI-DAQMx Base에서 NI-DAQmx으로 전환하기 NI-DAQmx 7.5는 윈도즈에서 USB-6008, USB-6009, USB-6501를 지원합니다. 만약 NI-DAQmx Base를 이용한 프로그램을 가지고 있고, 그것을 NI-DAQmx로 전환하고자 한다면 다음 설명을 참조하십시오. URL: http://digital.ni.com/public.nsf/allkb/2BD1B6E0923A1D7E86257079002A0A4D

NI-DAQmx BaseのアプリケーションをNI-DAQmxへ移行する方法について NI-DAQmxバージョン7.5からUSB-6008/6009、USB-6501はDAQmxにサポートされているデバイスとなりました。（NI-DAQmx7.5以前はNI-DAQmx Baseドライバを使用していました）NI-DAQmx Baseのドライバを使用して作成したアプリケーション等は、NI-DAQmxに変換して今後使用することは URL: http://digital.ni.com/public.nsf/allkb/3E444D38EFF50EE986257062000F68A6

Switching from NI-DAQmx Base to NI-DAQmx for Low Cost USB devices NI-DAQmx 7.5 supports the USB-6008, USB-6009, and USB-6501 on Windows. If you have applications written using NI-DAQmx Base and would like to convert these applications to use NI-DAQmx, refer to the instructions below. URL: http://digital.ni.com/public.nsf/allkb/CEC0A75CE4B93AF48625703B004E673B

將USB裝置的驅動程式從NI-DAQmx Base轉換至NI-DAQmx NI-DAQ 7.5版在Windows平台開始支援USB-6008、USB-6009以及USB-6501。若有利用NI-DAQmx Base撰寫的應用程式，請按照下列步驟將其轉換為NI-DAQmx。 URL: http://digital.ni.com/public.nsf/allkb/22403A9C2174B2F986257043001639CB

Enabling Onboard Looping in the PCI-6534 How do I do on-board memory looping with the PCI/PXI-6534 to achieve device's maximum output rate of 20 MHz? URL: http://digital.ni.com/public.nsf/allkb/D41C98406383824286256FE8000F28FD