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  4. ParrelPort Access Durning Start-Up

ParrelPort Access Durning Start-Up

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  • S Offline
    S Offline
    sweep123
    wrote on last edited by
    #1

    I have been using the parallel port to switch a few relays. I use PortTalk to acces the parallel under Windows 2000 (and XP later - still TBD). However during WIndows 2000 startup the lines chatter, i.e. some sort of self test (or access) taking place? Once the PC is up and running they are no problems using the parallel port. My question is are they any way to stop the lines of the parallel port being accessed during startup? Many thanks,

    D S 2 Replies Last reply
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    • S sweep123

      I have been using the parallel port to switch a few relays. I use PortTalk to acces the parallel under Windows 2000 (and XP later - still TBD). However during WIndows 2000 startup the lines chatter, i.e. some sort of self test (or access) taking place? Once the PC is up and running they are no problems using the parallel port. My question is are they any way to stop the lines of the parallel port being accessed during startup? Many thanks,

      D Offline
      D Offline
      Dave Kreskowiak
      wrote on last edited by
      #2

      No, there isn't. You're seeing the ports being reset to known states/values when the system starts. There's nothing you can do to prevent this on the PC side. RageInTheMachine9532 "...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

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      • D Dave Kreskowiak

        No, there isn't. You're seeing the ports being reset to known states/values when the system starts. There's nothing you can do to prevent this on the PC side. RageInTheMachine9532 "...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

        S Offline
        S Offline
        sweep123
        wrote on last edited by
        #3

        OK thanks for the info.

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        • S sweep123

          I have been using the parallel port to switch a few relays. I use PortTalk to acces the parallel under Windows 2000 (and XP later - still TBD). However during WIndows 2000 startup the lines chatter, i.e. some sort of self test (or access) taking place? Once the PC is up and running they are no problems using the parallel port. My question is are they any way to stop the lines of the parallel port being accessed during startup? Many thanks,

          S Offline
          S Offline
          sweep123
          wrote on last edited by
          #4

          What about Serial ports, do they chatter during start-up. Also is USB an option?

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