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Wednesday, 29 January 2014

Unable to Open Com Port, X CTU failed to open Com Port in Ubuntu

by realfinetime  |  in Zig-Bee at  05:22

A beautiful discussion on the  topic " X-CTU on Ubuntu " is there in . Sometimes after the test/query operation, an alert box displaying "Unable to Open Com Port" will be displayed . This is due to the file permission problems. You don't have permission to communicate with the com port. To solve this problem change the permission of the files com5 , com6 , COM5 and COM6.

Open Terminal. Now run the following commands in terminal.

sudo chmod 777 ~paulsin/.wine/dosdevices/com5

sudo chmod 777 ~paulsin/.wine/dosdevices/com6
sudo chmod 777 ~paulsin/.wine/dosdevices/COM5
sudo chmod 777 ~paulsin/.wine/dosdevices/COM6

Important : paulsin should be replaced by your username.

Now Run the Test / Query Operation. Now a window as shown in image shown below will appear.



All the circuits, published in this blog is only after testing and getting proper results in my private lab. When you try these circuits, you should check the supply voltage, polarity of components, presence of childrens nearby and shorts in the circuits. This website will not be responsible for any harm happened to you or your components caused by your carelessness.

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