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I wanted to make a minor change to uncomment WITH_NMEA_MODE, run a GPS test in Mission Planner for Venus GPS (didn't get that far).  I got compiler warnings with both 2.27 and 2.28 using both 022 and 023 before making any code changes.  All 4 versions of the executable were uploaded successfully and APM 1 navigates in each case.  However, when using mission planner 1.1.30 or 1.1.18 I get jibberish when selecting the test tab.  When I upload 2.28 using mission planner the test tab works fine.  Compilation errors:

ArduPlane.cpp.o: In function `test_imu': C:\Users\ANNBOX~1\AppData\Local\Temp\build1155276265180786879.tmp/ArduPlane.cpp:8473: warning: internal error: out of range error C:\Users\ANNBOX~1\AppData\Local\Temp\build1155276265180786879.tmp/ArduPlane.cpp:8473: warning: internal error: out of range error ArduPlane.cpp.o: In function `test_mag': C:\Users\ANNBOX~1\AppData\Local\Temp\build1155276265180786879.tmp/ArduPlane.cpp:8536: warning: internal error: out of range error C:\Users\ANNBOX~1\AppData\Local\Temp\build1155276265180786879.tmp/ArduPlane.cpp:8536: warning: internal error: out of range error FastSerial\FastSerial.cpp.o:(.rodata._ZTV10FastSerial+0x6): warning: internal error: out of range error FastSerial\FastSerial.cpp.o:(.rodata._ZTV10FastSerial+0x8): warning: internal error: out of range error AP_GPS\AP_GPS_Auto.cpp.o: In function `AP_GPS_Auto::init()': C:\Users\Ann Box\Documents\Arduino\libraries\AP_GPS/AP_GPS_Auto.cpp:40: warning: internal error: out of range error C:\Users\Ann Box\Documents\Arduino\libraries\AP_GPS/AP_GPS_Auto.cpp:40: warning: internal error: out of range error AP_RangeFinder\AP_RangeFinder_MaxsonarXL.cpp.o:(.rodata._ZTV25AP_RangeFinder_MaxsonarXL+0x4): warning: internal error: out of range error AP_RangeFinder\AP_RangeFinder_MaxsonarXL.cpp.o:(.rodata._ZTV25AP_RangeFinder_MaxsonarXL+0x6): warning: internal error: out of range error AP_RangeFinder\AP_RangeFinder_MaxsonarXL.cpp.o:(.rodata._ZTV25AP_RangeFinder_MaxsonarXL+0x8): warning: internal error: out of range error Binary sketch size: 144154 bytes (of a 258048 byte maximum 

I have successfully used 022 in the past without compilation errors and have followed the recommended directory structure and have set the sketch directory.

Suggestions?

I can execute the test using the planner upload, but I suspect that I need the code change that I mentioned to utilize NMEA.

Thanks in advance,

Larry