int main(int argc, char *argv[]) {
int ret;
char filename[256];
sprintf(filename, "%s", "gps.samples.1bit.I.fs5456.if4092.bin");
FC = 4.092e6;
FS = 5.456e6;
max_fo = 5000.0;
printf("GPS CA code offline search. Extract from http://www.aholme.co.uk/GPS/Main.htm\n");
printf("Jiao Xianjun ([email protected]). 2014-05.\n");
printf("usage:\n");
printf("gps_test filename_of_1bit_IF_cap carrier_freq sampling_rate max_freq_offset\n");
printf("or\n");
printf("gps_test (Make sure gps.samples.1bit.I.fs5456.if4092.bin can be found. Download http://www.jks.com/gps/gps.html)\n");
if (argc == 5) {
sprintf(filename, "%s", argv[1]);
FC = atof(argv[2]);
FS = atof(argv[3]);
}else if (argc != 1) {
printf("Please run with 3 arguments or without argument!\n");
return(0);
}
ret = SearchInit();
if (ret) {
printf("SearchInit() returned %d\n", ret);
return ret;
}
SearchTask(filename);
return(0);
}
void gps_main(int argc, char *argv[])
{
assert(GPS_CHANS <= 16); // verilog limitation, see gps.v: "cmd_chan"
printf("GPS starting..\n");
SearchParams(argc, argv);
SearchInit();
for(int i=0; i<gps_chans; i++) {
char *tname;
asprintf(&tname, "GPSchan-%02d", i+1);
CreateTaskSP(ChanTask, tname, GPS_PRIORITY, (void *) (long) i);
}
CreateTask(SolveTask, GPS_PRIORITY);
if (!background_mode && print_stats) CreateTask(StatTask, GPS_PRIORITY);
}
