Jet MemCal adapter
Thread Starter
Melting Slicks
Joined: Aug 2001
Posts: 2,516
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From: Lockport NY
Jet MemCal adapter
I'd be interested in getting one of these, if anyone has one they'd want to sell...
http://www.picturetrail.com/gallery/...2145&uid=96398
It's on the left; you can see the bare adapter, adapter with EPROM, and adapter with EPROM & MemCal...
Craig Moates is gauging interest in a similar adapter, but his idea is to slice the MemCal and just use the limp-home section with a custom PCB for the ZIF socket...
The Jet adapter plugs in to the ECM, you plug in your EPROM, and the adapter redirects the pins to your EPROM...No desoldering necessary...
[Modified by Rich B., 6:25 PM 12/29/2001]
http://www.picturetrail.com/gallery/...2145&uid=96398
It's on the left; you can see the bare adapter, adapter with EPROM, and adapter with EPROM & MemCal...
Craig Moates is gauging interest in a similar adapter, but his idea is to slice the MemCal and just use the limp-home section with a custom PCB for the ZIF socket...
The Jet adapter plugs in to the ECM, you plug in your EPROM, and the adapter redirects the pins to your EPROM...No desoldering necessary...
[Modified by Rich B., 6:25 PM 12/29/2001]
Thread Starter
Melting Slicks
Joined: Aug 2001
Posts: 2,516
Likes: 0
From: Lockport NY
Re: Jet MemCal adapter (Mojo)
I contacted Jet and Hypertech a few months ago on this...Jet said "No!", Hypertech said "Call and ask"...
Traxion at DIY-PROM had a thread going, and seemed to think he had a source to sell a quantity of them...
http://www.thirdgen.org/techbb2/show...threadid=38944
...And a thread started by Craig Moates on making something similar...
http://www.thirdgen.org/techbb2/show...threadid=73507
The Jet adapter doesn't look all that complicated...
Traxion at DIY-PROM had a thread going, and seemed to think he had a source to sell a quantity of them...
http://www.thirdgen.org/techbb2/show...threadid=38944
...And a thread started by Craig Moates on making something similar...
http://www.thirdgen.org/techbb2/show...threadid=73507
The Jet adapter doesn't look all that complicated...
Team Owner
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
Re: Jet MemCal adapter (Rich B.)
I would not use that Jet adaptor board, I had one supplied once by a programmer, and the thing was intermittant on me, sometimes worked, then went into limp home mode....never did find the problem....
plugged the chip into a modified cal pak and had no more problems...
found/proved it by playing with computer on floorboard of car, and watch engine go crazy...never could isolate which pin was bad....
GENE
plugged the chip into a modified cal pak and had no more problems...
found/proved it by playing with computer on floorboard of car, and watch engine go crazy...never could isolate which pin was bad....
GENE
Instructor
Joined: Feb 2000
Posts: 122
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From: Canyon Lake ca
Re: Jet MemCal adapter (Rich B.)
There are too many problems associated with the pop in solutions and most people aren't doing enough changes to warrant these adapters. When you have a small contact point like that corrosion can become a factor as well. There is a reason the general soldered eproms into the memcal in the first place. A much better solution i've found is when i'm making lotsa changes and need to swap a few chips, I snap in a memcal with a ribbon connected to a zip-dip2 socket. Once its good and the semi-permanent chip goes in, I use an EEPROM soldered into the stock memcal and run the new program on that. When another change needs to be made in the future, I can pull the memcal, flash the chip and put it back. The piggyback adapter seems more of a problem waiting to happen than a convenience.
Thread Starter
Melting Slicks
Joined: Aug 2001
Posts: 2,516
Likes: 0
From: Lockport NY
Re: Jet MemCal adapter (OuTLaW)
A much better solution i've found is when i'm making lotsa changes and need to swap a few chips, I snap in a memcal with a ribbon connected to a zip-dip2 socket...
That sounds kinda like what Craig Moates is proposing. How long do you make the ribbon cable?
I have a spare IDE cable extension (male/female on each end). And a spare header; I could make a short MemCal extension; say 3 inches...That should be short enough to defeat cross-talk...
Good idea! :yesnod:
