GARMIN GPS Interface Specification

7.5.1. D100_Wpt_Type
Example products: GPS 38, GPS 40, GPS 45, GPS 75 and GPS II.
typedef struct
{
char ident[6]; /* identifier */
Semicircle_Type posn; /* position */
longword unused; /* should be set to zero */
char cmnt[40]; /* comment */
} D100_Wpt_Type;
7.5.2. D101_Wpt_Type
Example products: GPSMAP 210 and GPSMAP 220 (both prior to version 4.00).
typedef struct
{
char ident[6]; /* identifier */
Semicircle_Type posn; /* position */
longword unused; /* should be set to zero */
char cmnt[40]; /* comment */
float dst; /* proximity distance (meters) */
byte smbl; /* symbol id */
} D101_Wpt_Type;
The enumerated values for the “smbl” member of the D101_Wpt_Type are the same as those for Symbol_Type (see
Section 7.4.9 on page 33). However, since the “smbl” member of the D101_Wpt_Type is only 8-bits (instead of 16-
bits), all Symbol_Type values whose upper byte is non-zero are unallowed in the D101_Wpt_Type.
The “dst” member is valid only during the Proximity Waypoint Transfer Protocol.
7.5.3. D102_Wpt_Type
Example products: GPSMAP 175, GPSMAP 210 and GPSMAP 220.
typedef struct
{
char ident[6]; /* identifier */
Semicircle_Type posn; /* position */
longword unused; /* should be set to zero */
char cmnt[40]; /* comment */
float dst; /* proximity distance (meters) */
Symbol_Type smbl; /* symbol id */
} D102_Wpt_Type;
The “dst” member is valid only during the Proximity Waypoint Transfer Protocol.
7.5.4. D103_Wpt_Type
Example products: GPS 12, GPS 12 XL, GPS 48 and GPS II Plus.
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