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发表于 2011-2-11 14:43:17
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*/
typedef struct _nmeaGPRMC
{
nmeaTIME utc; /**< UTC of position */
char status; /**< Status (A = active or V = void) */
double lat; /**< Latitude in NDEG - [degree][min].[sec/60] */
char ns; /**< [N]orth or [S]outh */
double lon; /**< Longitude in NDEG - [degree][min].[sec/60] */
char ew; /**< [E]ast or [W]est */
double speed; /**< Speed over the ground in knots */
double direction; /**< Track angle in degrees True */
double declination; /**< Magnetic variation degrees (Easterly var. subtracts from true course) */
char declin_ew; /**< [E]ast or [W]est */
char mode; /**< Mode indicator of fix type (A = autonomous, D = differential, E = estimated, N = not valid, S = simulator) */
} nmeaGPRMC;
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如果真的用浮点型数据来处理经纬度坐标，那对于8位单片机来说实在太累了！ |
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