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We appreciate your patience as we improve our online experience.
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在NI-SWITCH中,這個自我測試函式為 niSwitch_self_test() (在LabVIEW則是niSwitch Self-Test VI),其功能如下:
SCXI切換器:
當SCXI機箱電源開啟時,module ID的數值會自動寫入SCXI硬體的暫存器中,而當NI-SWITCH Initialize函數執行時,這個數值則會暫存到電腦記憶體中。當自測函式執行時,NI-SWITCH會將SCXI暫存器中的module ID讀出,並與暫存在電腦記憶體中的module ID數值加以比對,如果兩者數值相同,則自測通過。
PXI切換器:
當NI-SWITCH Initialize函數執行時,軟體會自動下載至PXI模組的FPGA裡。當自測函式執行時,NI-SWITCH檢查存放在FPGA中的程式碼,確定是否它已經備妥接收來自NI-SWITCH驅動程式的Connect及Disconnect命令。
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