direct memory interface 中文意思是什麼
direct memory interface
解釋
直接存儲介面-
A common data acquisition card can be used on laboratory virtual instrument engineering workbench through designing the external interface between labview and common date acquisition card on the software design ; used the idea of the double buffer and direct memory access, a real time data acquisition and logging about the succession, big capacitance leakage current is realized ; a digital filter is designed to filter high frequency signals
在軟體設計上,設計了與普通數據採集卡的介面,實現了在labview環境中應用普通數據採集卡的功能;運用雙緩沖和內存直接映射的設計方法實現對連續、大容量泄漏電流信號的實時採集和存儲;設計了數字濾波器對採集后的原始數據濾去高頻干擾。 -
In this system, it is master - slave structure between pc and dsp. dsp transfers data to pc by adopting the dmac ( direct memory access controller ) in pc. the thesis dwells on every part of hardware circuit and main technology such as dsp, the transferring mode of dma ( direct memory access ), etc subsequently, it introduces the software design of the sampling system and user interface
該最小系統製作成高速數據採集卡,插入pc機的isa總線插槽中, pc機與dsp構成主從結構,系統中tms320f240dsp作為pc機的下位機,採用pc機內的dmac ( dma控制器)通過dma (直接存儲器存取)方式把採集的數據傳送到pc機進行處理。
分享友人