Re: [Flexradio] pc initialization and ptt
At 01:43 PM 3/6/2006, Tim Ellison wrote: Here you go. Some versions of Windows XP look for devices by periodically writing to the port. A registry key can disable this behavior. The following registry setting disables the port writes: [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Parport\Parameters ] "DisableWarmPoll"=dword:0001 But isn't that loaded from one of the other ControlSet00x keys based upon the hardware detection?
Re: [Flexradio] pc initialization and ptt
At 12:32 PM 3/6/2006, Philip M. Lanese wrote: I remember seeing a post on the moon-net or vhf reflectors about this problem WAY back and someone posted that there is a way to kill the "probing" by changing one of the registry settings. I do not remember which Windoz was involved in the discussion but I do remember saving the thread in my "to look at later" bin. Will see if I still have it. probably not necessarily a registry thing, but more a boot.ini or something in system32 (like something that hal.dll does) But here is where MS tells you more than you want to know about how XP boots: http://www.microsoft.com/technet/prodtechnol/winxppro/reskit/c29621675.mspx
Re: [Flexradio] pc initialization and ptt
Here you go. Some versions of Windows XP look for devices by periodically writing to the port. A registry key can disable this behavior. The following registry setting disables the port writes: [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Parport\Parameters ] "DisableWarmPoll"=dword:0001 -Tim --- Integrated Technical Services "You can't close the door when the walls cave in" --Robert Hunter -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bill Nagle Sent: Monday, March 06, 2006 3:46 PM To: FlexRadio@flex-radio.biz Subject: Re: [Flexradio] pc initialization and ptt Thanks Phil, my rig will appreciate te info. :)) Bill Nagle ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
Re: [Flexradio] pc initialization and ptt
Thanks Phil, my rig will appreciate te info. :)) Bill Nagle
Re: [Flexradio] pc initialization and ptt
I remember seeing a post on the moon-net or vhf reflectors about this problem WAY back and someone posted that there is a way to kill the "probing" by changing one of the registry settings. I do not remember which Windoz was involved in the discussion but I do remember saving the thread in my "to look at later" bin. Will see if I still have it. Phil, K3IB - Original Message - From: "Robert McGwier" <[EMAIL PROTECTED]> To: "Bill Nagle" <[EMAIL PROTECTED]> Cc: Sent: Monday, March 06, 2006 12:32 PM Subject: Re: [Flexradio] pc initialization and ptt > This is indeed true. The PC (both Windows and Linux and probably every > modern OS these days) checks to see "what kind of printer or device" > you have hooked to your parallel port. There is little we can do to > defeat this.
Re: [Flexradio] pc initialization and ptt
This is indeed true. The PC (both Windows and Linux and probably every modern OS these days) checks to see "what kind of printer or device" you have hooked to your parallel port. There is little we can do to defeat this. Bill Nagle wrote: It seems that even if the 12 volt power is turned off to the sdr1000, when the pc is first fired up it pulls the x2 ptt pin low a couple of times, sometimes STAYING low until the sdr software is brought up. This can be a problem depending on what is hanging externally on that circuit. My proposed solution is to put a small "in between" relay in the ptt line and have it's coil powered by the 12 volts on the LOAD side of the sdr power switch on the front panel. Bill Nagle ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com -- AMSAT VP Engineering. Member: ARRL, AMSAT-DL, TAPR, Packrats, NJQRP/AMQRP, QRP ARCI, QCWA, FRC. ARRL SDR Wrk Grp Chairman Laziness is the number one inspiration for ingenuity. Guilty as charged!
