LX Navigation d.o.o LX Mini Map V 1.4 May 29
th
2011
10
2.2
Using of COM 1 and COM 2
LX MM offers two com ports which are named COM 1 and Com 2. The most important difference between com 1
and com 2 variant is that after using of com 1 the GPS source becomes a direct connection with LX Mini Map
main
computer
. In that case COM 1 setting in navigation program should be preset and also the baud rate should match.
Cable sets are
clearly
marked as COM and COM 2. So after decision to change com port a new cable set should be
used.
2.2.1
COM 1 highlights
-
cable set
marked as
COM 1
should be used
-COM 1 should be set in
navigation program
-baud rate setting in navigation program
should match
baud rate of GPS source
-COM 1 could be generally used and exception is
LX MM KB/V
version which requests COM 2
2.2.2
COM 2 highlights
In that case GPS source isn’t connected directly to MM main computer. This solution uses an indirect way via LX
MM microcontroller which receives GPS data at any baud rate, converts to
38400
and sends towards MM main
computer. After using of COM 2 the baud rate of GPS signal doesn’t matter, as MM microcontroller will search on
different baud rates and adapt automatically.
-
cable set COM 2
required (written on the label)
-GPS source
baud rate doesn’t matter,
due to automatic adaptation
-navigation program setting
COM 2 38400
is absolutely necessary
-
MM KB/V
requires COM 2
2.2.3
Suggested COM solutions
GPS source
LX 20
Colibri
VL
LX 160/166
LX 1600/6
CAI 302
COM 1
Y
Y
Y
Y
Y
Y
COM 2
Y
Y
Y
N
N
N
GPS source
Flarm RB
Flarm MB
Flarm
Others
COM 1
Y
Y
Y
Y
COM 2
Y
Y
Y
N
Note!
LX MM KB/V
requires always COM 2, GPS source doesn’t matter.
GPS source
baud rate
doesnt matter
MM
microcontr
oller
Main computer
with navigation
programm
