ardupilot/libraries/AP_GPS/AP_GPS_MTK.h
DrZiplok@gmail.com 96a80f1c66 Cleanup.
Teach AP_GPS about FastSerial (in the few places it needs to know) and about Stream everywhere else.

Do some minor code cleanup.

Tested with Mega and uBlox.  Some issues (e.g. reporting 0 satelites) remain.



git-svn-id: https://arducopter.googlecode.com/svn/trunk@404 f9c3cf11-9bcb-44bc-f272-b75c42450872
2010-09-06 09:20:44 +00:00

52 lines
1.1 KiB
C++

// -*- tab-width: 4; Mode: C++; c-basic-offset: 4; indent-tabs-mode: t -*-
#ifndef AP_GPS_MTK_h
#define AP_GPS_MTK_h
#include <GPS.h>
#define MAXPAYLOAD 32
#define MTK_SET_BINARY "$PGCMD,16,0,0,0,0,0*6A\r\n"
#define MTK_SET_NMEA "$PGCMD,16,1,1,1,1,1*6B\r\n"
#define MTK_OUTPUT_1HZ "$PMTK220,1000*1F\r\n"
#define MTK_OUTPUT_2HZ "$PMTK220,500*2B\r\n"
#define MTK_OUTPUT_4HZ "$PMTK220,250*29\r\n"
#define MTK_OTUPUT_5HZ "$PMTK220,200*2C\r\n"
#define MTK_OUTPUT_10HZ "$PMTK220,100*2F\r\n"
#define MTK_BAUD_RATE_38400 "$PMTK251,38400*27\r\n"
#define SBAS_ON "$PMTK313,1*2E\r\n"
#define SBAS_OFF "$PMTK313,0*2F\r\n"
#define WAAS_ON "$PSRF151,1*3F\r\n"
#define WAAS_OFF "$PSRF151,0*3E\r\n"
class AP_GPS_MTK : public GPS
{
public:
// Methods
AP_GPS_MTK(Stream *s);
void init();
void update();
private:
// Packet checksums
uint8_t ck_a;
uint8_t ck_b;
uint8_t GPS_ck_a;
uint8_t GPS_ck_b;
uint8_t step;
uint8_t msg_class;
uint8_t id;
uint8_t payload_length_hi;
uint8_t payload_length_lo;
uint8_t payload_counter;
uint8_t buffer[MAXPAYLOAD];
void parse_gps();
void checksum(unsigned char data);
};
#endif