[Jmri-developers] NCE PowerCab reading BLI Paragon2 Motor Tab [was NCE and WiThrottle: a question...]

[Stephen P W. <ste...@pa...>]

Daniel Boudreau wrote:
> Hi Steve,
>
> I was just working on your NCE bug report NCE PowerCAB fails to read BLI
> Paragon2 Motor tab - ID: 2958885.  I added one real time debug statement and
> the read full motor tab doesn't hang anymore!
>
> The A2 command is a new command that I believe older versions of the PH
> command station didn't support.  I don't see a problem with allowing the A2
> command to be sent when the eprom is the late
> I'll make the change for you.
>
> Dan
>   


Dan,

Great!  I did a little more digging on the BLI Paragon issue, and can 
report the following: track.

The crash in the bug report is a race condition triggered by the fact 
that the BLI Paragon2 diesel decoder has a bug which makes CV115 appear 
in two different two-byte variables.  This is certainly a bug in the 
decoder definition, but it triggers "bad behavior" in the NCE stack, I 
suspect because the return of CV115 causes more than one listener to fire.

Steve