1 /****************************************************************************/ 2 /* gps.h */ 3 /* TrueTime GPS-VME and VME-SG */ 4 /* VME controller hardware commands and parameters. */ 5 /* created 010694 res */ 6 /* History: revised for 747i 3/94 */ 7 /****************************************************************************/ 8 9 10 #define GPS_VME "/dev/vme2" /* the device file for the GPS board */ 11 /* change it to whatever yours is */ 12 #define PRIO 120 /* set the realtime priority */ 13 #define NREGS 7 /* number of registers we will use */ 14 15 #define GFRZ1 0x0020 /* freeze cmd addr gen reg. 1 */ 16 #define GREG1A 0x0021 /* Gen reg. 1 Word A (units microsec to 0.001 sec) */ 17 #define GREG1B 0x0040 /* Gen reg. 1 Word B (units 0.01 sec to tens sec ) */ 18 #define GREG1C 0x0041 /* Gen reg 1 Word C (units mins and hours) */ 19 #define GREG1D 0x0042 /* Gen reg. 1 Word D (units days and status) */ 20 #define GREG1E 0x0043 /* Gen reg. 1 Word E (units Years ) */ 21 #define GUFRZ1 0x0022 /* unfreeze cmd addr gen reg 1 */ 22 23 #define MASKDAY 0x0FFF /* mask for units days */ 24 #define MASKHI 0xFF00 25 #define MASKLO 0x00FF 26 /* Use the following ASCII hex values: N(0x004e),S(0x0053),E(0x0045), 27 W(0x0057), +(0x002B), - (0x002D) */ 28 29 #define LAT1 0x0048 /* Lat (degrees) */ 30 #define LAT2 0x0049 /* Lat (min, sec) */ 31 #define LAT3 0x004A /* Lat (N/S, tenths sec) */ 32 #define LON1 0x004B /* Lon (degrees) */ 33 #define LON2 0x004C /* Lon (min, sec) */ 34 #define LON3 0x004D /* Lon (E/W, tenths sec) */ 35 #define ELV1 0x004E /* Elev. (sign, 10,000 and 1000 ) */ 36 #define ELV2 0x004F /* Elev. (100, 10s, units, and .1) */ 37 38 #define CFREG1 0x0050 /* config. register 1 */ 39 #define CFREG2 0x00A0 /* config. register 2 */ 40 #define PMODE 0x00A4 /* Position mode */ 41 #define LOCAL 0x0051 /* Local hours offset */ 42 #define RATE 0x0054 /* Pulse rate output select */ 43 #define DAC 0x0055 /* OSC Control (DAC) select */ 44 45 #define PUMS 0x0056 /* Gen. preset register unit millisec */ 46 #define PMS 0x0057 /* Gen. preset register units hundreds and tens ms */ 47 #define PSEC 0x0058 /* Gen. preset register units tens and unit seconds */ 48 #define PMIN 0x0059 /* Gen. preset register units tens and unit minutes */ 49 #define PHRS 0x005A /* Gen. preset register units tens and unit hours */ 50 #define PDYS1 0x005B /* Gen. preset register units tens and unit days */ 51 #define PDYS2 0x005C /* Gen. preset register units hundreds days */ 52 #define PYRS1 0x005D /* Gen. preset register units tens and unit years */ 53 #define PYRS2 0x005E /* Gen. preset reg. units thousands and hundreds yrs */ 54