Programmatically find COM and LPT address

조회 수: 9 (최근 30일)
Gianluca Finotti
Gianluca Finotti 2018년 10월 15일
댓글: Ming Yue 2018년 10월 18일
I am using Matlab to program an experiment.
In particular, I am using these lines of code to read and send triggers to an external device:
ioObj = io64;
status = io64(ioObj);
io64(ioObj,portWriteAddress,0);
I have found the value for 'portWriteAddress by navigating to: Device manager -> Ports -> LPT1 -> Resources. Then, in Resources there is an entry called I/O Range/ Settings with a code like 02S7 - 02SS (something like that).
Then I have converted it from Hex to Dec and put it in the line above.
THE PROBLEM IS: I am running this experiment on several different computers. Is there a way to programmatically find this range (or address) information fromMatlab?
Thank you all for your time.
Gluce
P.S. The OS that I am using is Windows 7 (it should be soon updated to windows 10). The computers are running either Matlab 2015b or 2016b.
  댓글 수: 1
Ming Yue
Ming Yue 2018년 10월 18일
When I connect a Raspberry pi device to USB, I don't see the Resources tab in the Device manager. However some other ports do have the Resources tab. So I think the I/O Range is not a common property and it likely depends on the driver of the device.
If there is any Windows Command that could show this I/O Range property, then you can make system calls in MATLAB using " system " function and get system outputs.

댓글을 달려면 로그인하십시오.

답변 (0개)

카테고리

Help CenterFile Exchange에서 Use COM Objects in MATLAB에 대해 자세히 알아보기

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by