gp2021.h

OpenSource GPS is software for x86 PCs that allows you to acquire, track and demodulate signals from

int port(int);
void self_test(void);
void to_gps(int, int);
int  from_gps(int);
// Setting up the library of GP2021 GPS correlator functions
int  meas_status(void);
int  accum_status_a(char);
int  accum_status_b(char);
int  accum_status_c(void);
void ch_accum_reset(char);
void all_accum_reset(void);
void ch_carrier(char ,long);
long  ch_carrier_cycle(char);
int  ch_carrier_dco_phase(char);
void all_carr_incr_hi(int);
void all_carr_incr_lo(int);
void ch_code_incr_hi(char,int);
void ch_code_incr_lo(char,int);
void all_code_incr_hi(int);
void all_code_incr_lo(int);
void ch_off(char);
void ch_on(char);
void ch_cntl(char,int);
void all_cntl(int);
void ch_code_slew(char,int);
void all_code_slew(int);
unsigned int  ch_epoch(char);
void  ch_epoch_load(char,unsigned int);
unsigned int  ch_epoch_chk(char);
int  ch_i_track(char);
int  ch_i_prompt(char);
int  ch_q_track(char);
int  ch_q_prompt(char);
void ch_code(char ,long);
int  ch_code_phase(char);
int  ch_code_DCO_phase(char);
void ch_preset_phase(char,int);
void all_preset_phase(int);
void data_bus_test_w(int);
void data_retent_w(int);
int  data_bus_test_r(void);
int  data_retent_r(void);
void program_TIC(long);
void reset_cntl(int);
int  rtc_delay(void);
void stat_chk_sel(int);
int  stat_chk_sign(void);
int  stat_chk_mag(void);
void status_latch(void);
void test_control(int);
void system_setup(int);
void multi_control(int);
void multi_channel_select(int);
void x_dco_incr_high(int);
void prog_accum_int(int);
void timemark_control(int);
void io_config(int);

void interface_status(void);
int ready(void);