How to extract your map to Garmin Dakota?

As I am informed maps of OSM can be used in the Garmin Dakota’s.
How does it work?
CREATE your map, by selection which is offered, and EXPORT on the apparatus??

Thanks a lot for answering.

The easiest option is to use this website:
Pick a country, or select the tiles on the map, then it will give you a link to download the map.
You need to download the file “”.
Then unzip this, and copy the gmapsupp.img file into a folder named “Garmin” on the Dakota. It can be in the internal memory or on a MicroSD card, just so long as it is in a folder named Garmin.

You can also find further information in the OSM wiki:

… and enter “Garmin” in the text search box upper right on the screen.