51 SCM procedures to obtain the GPS latitude and longitude, with schematics and a short test video. gps uses a GR-87.

GPRS—GR-87\GPRS.sch
...........\VID_20130410_193619.mp4
...........\IMG_20130410_194823823.jpg
...........\IMG_20130410_194807853.jpg
...........\资料说明.txt
...........\CPRS\GPRS-程序\STARTUP.A51
...........\....\.........\GPRS.plg
...........\....\.........\GPRS_uvproj.bak
...........\....\.........\GPRS.uvproj
...........\....\.........\STARTUP.LST
...........\....\.........\GPRS.lnp
...........\....\.........\GPRS.M51
...........\....\.........\GPRS_uvopt.bak
...........\....\.........\GPRS.hex
...........\....\.........\value.lst
...........\....\.........\value.obj
...........\....\.........\STARTUP.OBJ
...........\....\.........\main.lst
...........\....\.........\main.obj
...........\....\.........\interrupt.lst
...........\....\.........\interrupt.obj
...........\....\.........\1602.lst
...........\....\.........\1602.obj
...........\....\.........\GPRS
...........\....\.........\GPRS.uvopt
...........\....\.........\source\main.c
...........\....\.........\......\1602.c
...........\....\.........\......\1602.h
...........\....\.........\......\value.c
...........\....\.........\......\value.h
...........\....\.........\......\interrupt.c
...........\....\.........\......\interrupt.h
...........\....\.........\source
...........\....\GPRS-程序
...........\CPRS
GPRS—GR-87

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