工程師你們好,現在要設計一判斷之功能。
如何用 LabVIEW 設計出 "判斷擷取到的方波寬度" (如附件說明)?
hi,請用DAQmx Create Virtual Channel vi,
其中有你所要的"pulse width"設定.
如附圖
在 10-19-2008 10:46 PM
labview>>help>>find examples>>browse>>hardware input and output>>compactrio>>fpga fundamentals>.counters>>pulse width measurement
在 10-23-2008 10:32 PM
由於 "波形寬度之判斷" 已設計完成(第一個附件),不過當我加到我的主程式內(第二個附件),雖然可以執行,但 "Rising trigger location" 與 "Falling trigger location" 皆為0(沒東西),請問是什麼原因?
再請問如何將 "DBL的資料型態" 轉成 "波形的資料型態"? ~ 謝謝 ~
在 10-27-2008 12:16 AM
The reason you didn't get the information is because the wrong data type you passed into the Dynamic data transfer VI.
you can find LabVIEW Help to see its usage and maybe you sould take it off.
as to waveform data type, you also can reference LabVIEW Help to see its components which include t0, dt, Y axis data.