I use cGPSmapper to add marine maps to an SD card. The maps work on
my 76csx and 276C and Nuvi 750w. I sent the SD card to someone with a
541, but he can't get it to work. Any idea how to configure the GPS
to look at the SD card rather than the internal memory of the 541?

On Fri, 29 Jul 2011 20:30:27 -0700 (PDT), NadCixelsyd
<(E-Mail Removed)> wrote:

>I use cGPSmapper to add marine maps to an SD card. The maps work on
>my 76csx and 276C and Nuvi 750w. I sent the SD card to someone with a
>541, but he can't get it to work. Any idea how to configure the GPS
>to look at the SD card rather than the internal memory of the 541?

That's not the problem. The 541 accepts only G2 maps.

If you're using cGPSmapper to convert from Reverse Polish, you can
make G2 maps.

From the cpgsMapper Documentation, the below goes in the
"Declarations" section:


Marine=x Indicates if the map is of marine type.

N or 0 .. non-marine map

Y or 1 .. marine map

B or 2 .. marine map – compatible with G2 devices

X or 3 .. non-marine map – compatible with G2
devices – be
aware – Garmin does not produce such non-marine maps
compatible with G2 devices only
.. Default = N.
.. Refer to section 0 (on page 31) for details.


Rick