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made my own scanner cable (ALDL)

T

tdr1919

Guest
Just built a cable to run one of the scanner programs for OBI, ALDL
My problem is my laptop does not have Rs232, so I bought a Belkin RS 232 to
USB converter cable and build the cable from the winaldl site.
I am hoping some one has experience with this, the winaldl does not support
USB so I down loaded the Datamaster 32, which has a 20 use trial meter, and does support USB.
Have any of you sucessfully used the Datamaster software?
My question is - is there any handshaking with my 86 ECU ? or does it continually
output serial data (E pin)
The schematic for the cable only spec'd receiving data on E and ground on A
is that all the interface I need?

Thanks
Tom
 

jsinga

Well-known member
Joined
Nov 23, 2001
Messages
280
Location
Savannah, GA, USA
Corvette
87 Silver Coupe Way over 200k miles
If you don't get an answer here look at thirdgen.org Those guys are hardcore and budget minded. Moates.net has a lot of stuff (if you haven't seen it already!)

JS
 
T

tdr1919

Guest
If you don't get an answer here look at thirdgen.org Those guys are hardcore and budget minded. Moates.net has a lot of stuff (if you haven't seen it already!)

JS

Thanks JS, I'm looking for a simple conversion from the digital info (255) to volts or time.
 
T

tdr1919

Guest
Scanner operational !! I built the 2 transistor cable (bi-directional) and am running it on my old RS232 computer (the USB to serial doesnt work) - I am recording information with both WinALD (Jonas) and Datamaster software.
my 86 requires a 10k resistor to receive data from thr ECM.

Now, understanding the data I am collecting is another story.

Thanks for all your help.
Tom
 

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