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41 ingob 1
#ifndef __UBX_H
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#define __UBX_H
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#include "buffer.h"
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// Satfix types for GPSData.SatFix
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#define SATFIX_NONE                             0x00
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#define SATFIX_DEADRECKOING             0x01
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#define SATFIX_2D                               0x02
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#define SATFIX_3D                               0x03
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#define SATFIX_GPS_DEADRECKOING 0x04
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#define SATFIX_TIMEONLY                 0x05
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// Flags for interpretation of the GPSData.Flags
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#define FLAG_GPSFIXOK                   0x01 // (i.e. within DOP & ACC Masks)
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#define FLAG_DIFFSOLN                   0x02 // (is DGPS used)
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#define FLAG_WKNSET                             0x04 // (is Week Number valid)
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#define FLAG_TOWSET                             0x08 // (is Time of Week valid)
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#define INVALID         0x00
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#define NEWDATA         0x01
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#define PROCESSED       0x02
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typedef struct
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{
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        s32 Longitude;  // in 1E-7 deg
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        s32 Latitude;   // in 1E-7 deg
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        s32 Altitude;   // in mm
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        u8 Status;// validity of data
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} __attribute__((packed)) GPS_Pos_t;
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typedef struct
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{
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        u16                     MsgCycleTime;   // time in ms since last gps data
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        GPS_Pos_t       Position;       // Lat/Lon/Alt
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        u8                      Flags;                  // Status Flags
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        u8                      NumOfSats;              // number of satelites
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        u8                      SatFix;                 // type of satfix
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        u32             Position_Accuracy;      // in cm 3d position accuracy
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        s32                     Speed_North;    // in cm/s
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        s32                     Speed_East;             // in cm/s
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        s32                     Speed_Top;              // in cm/s
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        u32                     Speed_Ground;   // 2D ground speed in cm/s
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        s32                     Heading;                // 1e-05 deg  Heading 2-D (current flight direction)
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        u32                     Speed_Accuracy; // in cm/s 3d velocity accuracy
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        u8                      Status;                 // status of data
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} __attribute__((packed)) gps_data_t;
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// The data are valid if the GPSData.Status is NEWDATA or PROCESSED.
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// To achieve new data after reading the GPSData.Status should be set to PROCESSED.
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extern gps_data_t  GPSData;
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#define UBX_CLASS_CFG   0x06
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#define UBX_CLASS_ACK   0x05
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typedef struct
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{
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        u8 Class;
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        u8 Id;
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        u16 Length;
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}  __attribute__((packed)) ubxmsghdr_t;
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#define UBX_MSG_DATA_SIZE 200
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typedef struct
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{
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        u8 ClassMask;
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        u8 IdMask;
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        ubxmsghdr_t Hdr;
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        u8 Data[UBX_MSG_DATA_SIZE];
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        u8 Status;
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} __attribute__((packed)) ubxmsg_t;
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// msg obj to reveive
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// set Class and Id and correspoinding masks of a message that should be received
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extern ubxmsg_t UbxMsg;
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extern u32 UBX_Timeout;
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void UBX_Init(void);
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void UBX_RxParser(u8 c);
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u8 UBX_CreateMsg(Buffer_t* pBuff, u8* pData, u16 Len);
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#endif // __UBX_H