the old mechanism wasted most of the input bytes, and chewed a lot of
CPU, making it impractical to do GPS detection for a GPS attached
after startup
The new code is async, and detects a GPS by looking for a fully formed
packet with the right checksum for each GPS type
if a UBlox is configured for NMEA only, with no UBX messages at all
then it would never trigger the GPS_AUTO detection. This adds a UBX
config message to the init strings that enables the NAV_SOL message
This makes PSTR() type safe by using a 1 byte wrapper
structure. Attempts to use the wrong varient of a print function will
generate a compilation error.
git-svn-id: https://arducopter.googlecode.com/svn/trunk@1797 f9c3cf11-9bcb-44bc-f272-b75c42450872
- disable NMEA autodetection; false positives are still a risk
- trim down the console output to a minimum; we still need something to help users diagnose potential problems, but the old output was much too verbose
- rather than block forever, only do one autodetect pass for each ::read call. That's still too long (five seconds or so) but better than blocking forever.
- don't block forever if no GPS is attached.
git-svn-id: https://arducopter.googlecode.com/svn/trunk@1480 f9c3cf11-9bcb-44bc-f272-b75c42450872
Otherwise, we can end up settling on NMEA as a mode just after switching a SiRF GPS to binary mode.
git-svn-id: https://arducopter.googlecode.com/svn/trunk@1467 f9c3cf11-9bcb-44bc-f272-b75c42450872
Nuke AP_GPS_IMU, as nothing is using it anymore.
Simplify the handling of no GPS/no fix detection.
Fix prototypes for ::init and ::read.
Update AP_GPS_Auto and corresponding example, nearly ready for primetime.
Use uint8_t rather than byte.
Strip some _error() calls to save space. More could still go.
git-svn-id: https://arducopter.googlecode.com/svn/trunk@1246 f9c3cf11-9bcb-44bc-f272-b75c42450872
Switch to subclassing GPS and manipulating a global pointer. Update the test program so that it works again.
git-svn-id: https://arducopter.googlecode.com/svn/trunk@673 f9c3cf11-9bcb-44bc-f272-b75c42450872
Note that this is currently disabled as changes need to be made to APM to support it.
Tested with MTK, u-blox and SiRF GPS'.
git-svn-id: https://arducopter.googlecode.com/svn/trunk@671 f9c3cf11-9bcb-44bc-f272-b75c42450872
Andrew Tridgell
Craig@3DR
Pat Hickey
Pat Hickey
Michael Oborne
James Goppert
tridge60@gmail.com
deweibel@gmail.com
jasonshort
james.goppert
DrZiplok@gmail.com