OSM Map On Garmin/Mass Storage Mode
From OpenStreetMap
Newer Garmin devices support a "Mass Storage Mode" for easy access to maps, tracks and POIs stored on the device. In mass storage mode the device acts like an external hard disk or flash disk and can it can be accessed with any modern operating system. Some devices store the data on a removable flash memory card, which can also be accessed without the Garmin device through a normal card reader.
To activate Mass Storage Mode enter the "Interface" section of the setup menu and choose "USB Mass Storage".
To exit the USB Mass Storage mode, press the PWR switch on the GPS. The device will exit the USB Mass Storage mode and enter the GPS Mode.
File System Layout
| Filename | Type | Description |
|---|---|---|
| YYYYMMDD.gpx | File | Track points from one day in GPX format. Date is given in Year-Month-Day format. |
| Garmin | Dir | |
| Garmin/GMAPSUPP.IMG | File | One map file containing all the maps uploaded to this device. |
| Garmin/Poi | Dir | All POI files must be in this directory or subdirectories of it. |
| Garmin/Poi/something.gpi | File | POI file. Can have any name with suffix .gpi. Can also be in some subdirectory. |
Do not create other directories than this, because they will confuse the device and it might not boot. Different files, on the other hand, are probably ok. So you can "abuse" your GPS unit as a data carrier.
Devices known to support Mass Storage Mode
- Colorado 300
- GPSMap 60Cx
- GPSMap 60CSx
- Legend HCx
- Vista Cx
- Vista HCx
- Venture Cx
- Software navigators: Que, Mobile XT
- All GARMIN devices where the model number that ends with an "x" support mass storage
- Edge 605
- Edge 705
- Please add devices you know about to this list
