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03-23-2004, 11:21 AM
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#31
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FLAC
Join Date: Jul 2003
Location: San Antonio, TX. USA
Vehicle: 2000 BMW M Roadster
Posts: 1,375
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I tested it on my machine at my desk and ended up getting -12.28 volts out of three of the wires coming out of the DB9 port. if the computer was on, without windows loaded it still had power. Not working yet....any ideas?
__________________
Stop Buying New Music CD's.
Hit The RIAA where it lives.
Indash Motorized 7", Epia Nehimiah, 512 MB, 80 GB, DVD, Wireless G, XP Pro, XM PCR, Kenwwod 5 Channel 1200 Watt Amp.
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03-24-2004, 01:29 AM
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#32
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Constant Bitrate
Join Date: Jan 2004
Vehicle: 1992 Mazda 323 Sedan
Posts: 117
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That's weird.. I'm also using the Nehimiah board.. It puts out like 12.2v.. :/
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03-24-2004, 05:51 AM
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#33
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FLAC
Join Date: Jul 2003
Location: San Antonio, TX. USA
Vehicle: 2000 BMW M Roadster
Posts: 1,375
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I haven't tried it on the machine in the car yet....We'll see about that this weekend, but it's a fence building weekend, so probably not.
__________________
Stop Buying New Music CD's.
Hit The RIAA where it lives.
Indash Motorized 7", Epia Nehimiah, 512 MB, 80 GB, DVD, Wireless G, XP Pro, XM PCR, Kenwwod 5 Channel 1200 Watt Amp.
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03-24-2004, 02:40 PM
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#34
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Variable Bitrate
Join Date: Mar 2004
Vehicle: 2003 Pointac Sunfire
Posts: 318
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So how did you build this cable? Can i take a serial cable that i might have kicking around and cut one end off...then which wire goes to the amp? Can this work for 2 amps off the same serial port? tnx
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03-24-2004, 02:50 PM
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#35
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Raw Wave
Join Date: Apr 2000
Location: Surrey, UK
Vehicle: '97 Vauxhall Corsa 1.5 TD
Posts: 1,965
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Quote: Originally Posted by ryguy
So how did you build this cable? Can i take a serial cable that i might have kicking around and cut one end off...then which wire goes to the amp?
DTR
Quote: Originally Posted by ryguy
Can this work for 2 amps off the same serial port? tnx
Yes, provided you want them both to switch on at the same time. Tie the remote switch on lines together and to DTR (preferably through an NPN transistor as above - emitter-follower should work just fine).
__________________
6yr old first install died 20/8/2005 as result of bad bios flash.
New system : 6x5x2" contains 1GHz C3 PCM9373, ISR based PSU, 512Mb flash DOM, 8Gb CF HDD, 98Lite, DirectShow based frontend.
GPS : Rikaline 6010.
Display : LTM08C351 + LVDS receiver.
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03-24-2004, 03:00 PM
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#36
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Variable Bitrate
Join Date: Mar 2004
Vehicle: 2003 Pointac Sunfire
Posts: 318
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Ok...i'm trying to follow you here...so i need a "DTR" cable? is that correct?  tnx |
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03-24-2004, 03:04 PM
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#37
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Raw Wave
Join Date: Apr 2000
Location: Surrey, UK
Vehicle: '97 Vauxhall Corsa 1.5 TD
Posts: 1,965
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Quote: Originally Posted by ryguy
Ok...i'm trying to follow you here...so i need a "DTR" cable? is that correct? tnx
Err, nope. DTR is one of the pins on the serial port. Stands for Data Terminal Ready. Search for stuff on serial ports. It will tell you all about it, and what pin it is.
__________________
6yr old first install died 20/8/2005 as result of bad bios flash.
New system : 6x5x2" contains 1GHz C3 PCM9373, ISR based PSU, 512Mb flash DOM, 8Gb CF HDD, 98Lite, DirectShow based frontend.
GPS : Rikaline 6010.
Display : LTM08C351 + LVDS receiver.
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03-24-2004, 03:22 PM
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#38
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Variable Bitrate
Join Date: Mar 2004
Vehicle: 2003 Pointac Sunfire
Posts: 318
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perfect thanks bud
Also I'm using my only serial port for my ir remote...would this work off a usb to serial adaptor or something like that?
tnx |
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03-24-2004, 03:53 PM
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#39
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Constant Bitrate
Join Date: Jan 2004
Posts: 165
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Quote: Originally Posted by burnout.no
That's weird.. I'm also using the Nehimiah board.. It puts out like 12.2v.. :/
You guys ever solve this one? So are you saying the Visa M10K puts a constant 12V out through the DTR as soon as power is supplied? |
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03-24-2004, 04:12 PM
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#40
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FLAC
Join Date: Jul 2003
Location: San Antonio, TX. USA
Vehicle: 2000 BMW M Roadster
Posts: 1,375
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nope, i tried this on my desktop at work and got the above mentioned results...I haven't tried this on my carpc yet.
Quote: Originally Posted by unsavory
You guys ever solve this one? So are you saying the Visa M10K puts a constant 12V out through the DTR as soon as power is supplied?
__________________
Stop Buying New Music CD's.
Hit The RIAA where it lives.
Indash Motorized 7", Epia Nehimiah, 512 MB, 80 GB, DVD, Wireless G, XP Pro, XM PCR, Kenwwod 5 Channel 1200 Watt Amp.
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03-25-2004, 02:40 AM
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#41
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Low Bitrate
Join Date: Jan 2004
Location: Singapore
Vehicle: 2003 Toyota WISH 1.8VVT-i
Posts: 71
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Quote: Originally Posted by chut
I tested it on my machine at my desk and ended up getting -12.28 volts out of three of the wires coming out of the DB9 port. if the computer was on, without windows loaded it still had power. Not working yet....any ideas?
I have tested and get a negative voltage when AmpCtrl service is turn off.
__________________
MediaCar
Girder with Igor plugin
EPIA-ME6000 w 256MB DDR
Morex 55W PSU
12VDC Regulator
IBM DJSA-220 20GB
90% completed in a plastic case (8"x10"x2.5")
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04-02-2004, 11:09 AM
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#42
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Low Bitrate
Join Date: Mar 2004
Location: UK
Vehicle: Mercedes and Chrysler
Posts: 62
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Can't install the program....
 Not sure what the issue is here. I installed the .NET framework stuff and used installutil.exe to install ampctrl.exe. The install fails telling me about a win32 exception error and something about the username and or password is wrong. I'm installing using the administrator account so I'm not sure what up.
Can anyone help me?  |
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05-02-2004, 03:31 PM
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#43
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Newbie
Join Date: May 2004
Posts: 1
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Would it be possible to do this with the parrallel port as well? I already have both of my serial ports being used by the gps and touchscreen. I want to be able to turn the amp on post startup, since when I get the thump by amp will sometimes put itself into protect mode and I will have to power cycle the amp to get it up again.
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05-14-2004, 07:23 AM
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#44
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Constant Bitrate
Join Date: Jan 2004
Location: Sweden
Vehicle: Alero
Posts: 128
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Quote: Originally Posted by Magpie
Not sure what the issue is here. I installed the .NET framework stuff and used installutil.exe to install ampctrl.exe. The install fails telling me about a win32 exception error and something about the username and or password is wrong. I'm installing using the administrator account so I'm not sure what up.
Can anyone help me?
This is what happens to me to!!! Not on my home PC (WinXP) just my carPC (Win 2000). Anyone found a solution to this? |
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05-14-2004, 10:22 AM
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#45
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Variable Bitrate
Join Date: Apr 2004
Location: A Brit in Las Vegas
Vehicle: 1999 Chevy Venture
Posts: 237
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Quote: Originally Posted by NiNeX
Would it be possible to do this with the parrallel port as well? I already have both of my serial ports being used by the gps and touchscreen. I want to be able to turn the amp on post startup, since when I get the thump by amp will sometimes put itself into protect mode and I will have to power cycle the amp to get it up again.
Yes it should be and you then have a whole bunch of extra lines to play with.
A small bit of programming should allow a user customizable interface that allowed individual pins to be 'switched' and as long as they were buffered with a bunch of transistors on a bit of breadboard you could build a really nice bit of kit. It could control the LCD touchscreen, remote amplifier, neons, spinning disco ball (lol) etc and you could also use a scripting language to control all of the functions with timers or event triggers.
A bit of C+ programming should do it.
Steve
__________________
RV : Samsung Q1 + Kyocera KR1 (EVDO) + GPS<br>
Car: AMD 3000+ Book PC + Lilliput 8" Touch + 13" TFT
Webmaster for the European Ford Scorpio Site
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