Campbell Scientific GPS16X-HVS GPS Receiver - Manual (Page 19)

GPS16X-HVS GPS Receiver
GGAstring = rawdata
EndIf
EndIf
'parse rmc data
SplitStr (SubStrings(),RMCstring,",",16,5)
rmcid = SubStrings(1)
rmcutc = SubStrings(2)
rmcstatus = SubStrings(3)
rmclatitude = SubStrings(4)
rmcin_s_ind =SubStrings(5)
rmclongitude=SubStrings(6)
rmce_w_indicator=SubStrings(7)
rmcspeed=SubStrings(8)
rmccourse=SubStrings(9)
rmcutcdate=SubStrings(10)
rmcmagvariation=SubStrings(11)
rmcmage_w =Left(SubStrings(12),1)
rmcchecksum=Right(RMCstring,2)
'parse gga data
SplitStr (SubStrings(),GGAstring,",",16,5)
ggaid=SubStrings(1)
ggautc=SubStrings(2)
ggailatitude=SubStrings(3)
ggan_s_ind=SubStrings(4)
ggalongitude=SubStrings(5)
ggae_w_ind=SubStrings(6)
ggapositionfix=SubStrings(7)
gganumsatellites=SubStrings(8)
ggahdop=SubStrings(9)
ggaaltitude=SubStrings(10)
ggaaltutudeunits=SubStrings(11)
ggageoidsep=SubStrings(12)
ggageoidunits=Left(SubStrings(13),1)
ggachecksum=Right(GGAstring,2)
CallTable gpsdata
NextScan
EndProg
6. Troubleshooting
Testing and evaluation of serial communications is best done by reducing the
whole system to small manageable systems. Usually some portions of the
whole system are working. The first steps involve finding what is working.
During this process you may find parts of the system that are not working or
mistakes that can be easily corrected. Fix each subsystem before testing others.
6.1 Testing and Evaluating Serial Communications
Test the GPS16X-HVS for proper operation including the baud rate and output
string. Use a computer, terminal emulator software, a serial port (RS-232), and
a 9-pin to pigtail cable (SC110/sockets). The computer and serial port can be
13