The software uses a Comm port to
communicate with the ECU. At the
moment when 'talking' is enabled the software sends 'mode 1' requests
intervals determined by the acquisition timer. The definition file for
decoding the data is 'M100 ALDL protocol.ini' in the windows folder.
Each parameter has a name, position (byte offset), size (in bytes),
scaling factor and offset. Feel free to play with it, if it all goes
horribly wrong just delete it and a new one will be generated. When
logging is enabled the data is logged to memory at the acquisition rate
(I'll probably allow logging direct to disc in a future version). When
data is present it can be saved as an 'ecu' file two parameters can be
plotted, the data can be exported to Excel by OLE (this is SLOW).
Multiple data files can be loaded at once and compared. I reckon its
The rate at which data can
be acquired is limited by the communication speed - 8192 baud in this
case. Each mode 1 request is 4 bytes long, the mode 1 reply is 63 bytes
of data and 4 framing bytes, each byte is sent using ten bits (1
start,8 data,1 stop) so that's 8192/710=11.5Hz (87ms period). ElanScan
can manage 100ms no problem (and maybe a ms or three fewer).
I'll stick in the usual disclaimer here. I make no guarantees to the
utility or reliability of the software. If you use it
you use you use it at your own risk.
If you have a version already installed delete the 'M100 ALDL
protocol.ini' file from the windows folder. This allows a new,
updated, parameter description file to be created. The new version
might choke if you don't (and it won't show the up-to-date parameter
Here is the download:
The latest version is still a beta because I haven't tested it on the
car yet. Moved ini file to user profile area
Version 0.10.11.70 Added crop to selection and copy selection to new
Version 0.10.10.69 Recovered from cobbled together backups after
a corrupt version was syncronised over the good.
Its also been modified to add features:(since its recovered from backup
number have gone down compared to some versions out there) Added more
gauges, added audible warnings, added tab delimited file save,
accelerated excel export, fixed serial port number read from registry
and probably some other stuff too.
Version 0.9.9.61 Modified comm routines to be tolerant of time gaps in
data stream. Reduces communication errors significantly in some cases.
Version 0.9.9.58 Fixed bug with graph print (pretty fundamental
error in the graph draw routine as it turned out), added default type
to PROM dump dialog, re-built to include enhancemen]ts in the COMMS
code I made for something else (i.e. it probably won't work any more :)
Version 0.9.9.54 Remembers your COMM port, serial port set up more
elegantly (but you won't notice any difference as a user), corrected
MAP calculations (thanks to Gary Harris), added DRP - distributor
reference pulse - (again thanks to Gary) - not sure about this one I
can't see why it doesn't scale linearly with RPM - & it works in
Version 0.9.9.46 Error codes complete (guesses), injector duty
cycle added, wastegate duty cycle calc corrected
Version 0.9.9.45 Changed live display methods - hopefully addressing
Version 0.9.8.41 Fixed a couple of bugs (around starting and stopping
talking/logging). Added optional gauges (manifold pressure
& RPM) for use during tuning. Enable in Setup and they'll appear
when 'Start talking' or 'Start logging' is pressed.
Version 0.9.8.37 Improved memory management, added more calculated
parameters (acceleration,power,gear - they are pretty approximate
but seem to be about right), graphing of individual bits now allowed,
more stuff I can't remember right now. Its still changing rapidly,
treat as an alpha version (keep the old version handy!)
Version 0.6.6.30 Parameters updated (changed my mind on quite a few),
graphing bug fixed.
Version 0.6.5.29 Tree view replaced table (breaks out
bits), resizeable control dialog, comments edit, status bars (x,y
coordinates, instructions), WOT cable support....
Version 0.5.4.27 Sets RTS and DTR high
Version 0.5.4.26 Fixed
another file loading bug & added function key control of buttons.
Version 0.5.3.23 Now the distance calculation works again...
Version 0.5.3.22 Oops - logging was broken in 21.... Fixed now (I hope)
Version 0.5.3.21 Fixed a file loading bug, added a calculated distance
Version 0.5.3.17 Added comparison feature. Improved(?) interface,
updated parameter table (many parameters are speculative, be
Version 0.2.2.8: Added data browsing and cursor feature, updated
Version 0.1.1.6: Added APM support (laptop doesn't standby/suspend,
unless battery power is critical, when logging), fixed various bugs,
gave up on real
time graphing (too time consuming)
If you use Windows 95 and can't see the graphics on the buttons get the
latest version of Comctl32.dll