396 Flight Plan Data from King GPS

[Mike Granby]

Well, I did a bit of playing around with my new 396, and discovered
that it WILL NOT accept flight plan data from my KLN-94 or KLN-90B. The
problem is that the serial data output by the King units terminates
each item with a CR character, while the Garmin panel-mounts send a
CR-LF sequence. Not sure if this is an over-sight on Garmin's part, or
an attempt to make their panel-mounts work better than King's, but
either way, the only way to hook-up the 396 is going to be to design
and build a protocol converter to add the extra characters. Luckily,
there are some very nice little micros available these days, and I'm
figuing I can make something that will easily fit in a box that is
small enough to go between the yoke mount and the yoke itself. The 396
will then automatically pick-up the flight plan data from my
panel-mount, avoiding the need to enter the data once again. I'll
report back once I get it working in case anyone else is interested...

[Mike Granby]

I do speak 8051, but the one I had in mind was the Philips P89LPC932A1.
It's got the one serial port that I need, it's flashable, has enough
memory, and it comes in a 28-pin TSSOP package so it'll not take much
space. Plus, we use it at work so all the development tools are to
hand! :)

[Dave Butler]

Mike Granby wrote:
> Well, I did a bit of playing around with my new 396, and discovered
> that it WILL NOT accept flight plan data from my KLN-94 or KLN-90B. The
> problem is that the serial data output by the King units terminates
> each item with a CR character, while the Garmin panel-mounts send a
> CR-LF sequence.

CR-LF is the conventional DOS/Windows end of line sequence.
Unix uses LF.
Apple uses CR.