MULTIPLE INPUT PORTS (多輸出類似,需要實際驗證的,不可不清楚就照做)


  •  轉載於: http://www.fedevel.com/designhelp/forum/main-forum/altium/2602-multiple-input-ports

     
    Hello. I want to ask if there is a way to connect several input PORTS to the same NET. For example, suppose we have a 4 sheets schematic. In the first page we have an IC that has an OUTPUT (for example a clock signal). In each of the next sheets (2,3 and 4) we have an IC (one per sheet) that needs to be connected to the clock signal. If you connect one INPUT PORT to each of the three ICs, and one OUTPUT port to the chip of the first sheet, Altium gives you an error: NETx CONTAINS MULTIPLE INPUT PORTS.

    I know I can use UNSPECIFIED or BIDIRECTIONAL ports, but I want to mantain the real direction of the signal. Some idea? All the pins of all the components are PASSIVE, so this is not the problem.

    Thank you in advance.
     

  • Administrator
     
    •  Aug 2015
    •  1245
     
    #2
    I don't know why Altium doesn't make the port DRC checking to pass these kind of standard situations by default (e.g. it's same for open collector).

    I know, some time ago I tried to figure out how to do it, but I couldn't find the best way, so I use "Unspecified" ports pointing the correct direction. You may want to try to play with Schematic -> Project -> Project Options -> Connection Matrix, however I normally try to run Altium on default settings (I only change the most annoying things e.g. zoom with CTRL). I use Altium on several different computers and in different versions and I used to have problems when I customized it too much (every Altium had different behavior).

    But maybe they fixed it now ... but I guess not, otherwise you would not be asking 


    Click image for larger version

Name:	Connection Matrix.jpg
Views:	1
Size:	84.5 KB
ID:	363
     
  • JMFernandez
    Junior Member
     
    •  Apr 2016
    •  33
     
    #3
    Thank you for your help. What do you mean when you say "I use "Unspecified" ports pointing the correct direction."? The only shape of the UNSPECIFIED ports I have found is the same as the BIDIRECTIONAL ports.
     
  • robertferanec
    Administrator
     
    •  Aug 2015
    •  1245
     
    #4
    You can select "Style"
    Click image for larger version

Name:	port style.jpg
Views:	1
Size:	57.2 KB
ID:	364
     
  • JMFernandez
    Junior Member
     
    •  Apr 2016
    •  33
     
    #5
     
    Ah! Thank you!!

  • 免責聲明!

    本站轉載的文章為個人學習借鑒使用,本站對版權不負任何法律責任。如果侵犯了您的隱私權益,請聯系本站郵箱yoyou2525@163.com刪除。



     
    粵ICP備18138465號   © 2018-2025 CODEPRJ.COM