Andrew Boyson / gps

A GPS disciplined clock

Dependencies:   net lpc1768 crypto clock web log

web-this/nmea/web-nmea-script.inc@97:af023452967f, 2020-05-06 (annotated)

Committer:
andrewboyson
Date:
Wed May 06 18:40:02 2020 +0000
Revision:
97:af023452967f
Parent:
60:7cab896b0fd4 
Changed PPS timeout to 8000ms (it was 1000ms)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
andrewboyson 60:7cab896b0fd4 1 "//Nmea script\n"
andrewboyson 48:9f1ab7784067 2 "'use strict';\n"
andrewboyson 48:9f1ab7784067 3 "\n"
andrewboyson 49:115a5e4fac0c 4 "const NMEA_DEG_UNIT = 10000000;\n"
andrewboyson 49:115a5e4fac0c 5 "const NMEA_HGT_UNIT = 1000000;\n"
andrewboyson 49:115a5e4fac0c 6 "\n"
andrewboyson 60:7cab896b0fd4 7 "let gpsTrace = false;\n"
andrewboyson 60:7cab896b0fd4 8 "let gpsVerbose = false;\n"
andrewboyson 60:7cab896b0fd4 9 "let msgTrace = false;\n"
andrewboyson 60:7cab896b0fd4 10 "let cmdTrace = false;\n"
andrewboyson 60:7cab896b0fd4 11 "let lat = 0;\n"
andrewboyson 60:7cab896b0fd4 12 "let lng = 0;\n"
andrewboyson 60:7cab896b0fd4 13 "let hgt = 0;\n"
andrewboyson 60:7cab896b0fd4 14 "let hgtAboveMsl = 0;\n"
andrewboyson 60:7cab896b0fd4 15 "let mslAboveWgs = 0;\n"
andrewboyson 60:7cab896b0fd4 16 "let dop = 0;\n"
andrewboyson 60:7cab896b0fd4 17 "let satCount = 0;\n"
andrewboyson 60:7cab896b0fd4 18 "let fixQuality = 0;\n"
andrewboyson 60:7cab896b0fd4 19 "let sensorHeight = 0;\n"
andrewboyson 60:7cab896b0fd4 20 "let bucketCount = 0;\n"
andrewboyson 60:7cab896b0fd4 21 "let buckets = '';\n"
andrewboyson 48:9f1ab7784067 22 "\n"
andrewboyson 60:7cab896b0fd4 23 "function parseVariables(text)\n"
andrewboyson 49:115a5e4fac0c 24 "{\n"
andrewboyson 60:7cab896b0fd4 25 " let lines = text.split('\\n');\n"
andrewboyson 60:7cab896b0fd4 26 " gpsTrace = Ajax.hexToBit (lines[0], 0);\n"
andrewboyson 60:7cab896b0fd4 27 " gpsVerbose = Ajax.hexToBit (lines[0], 1);\n"
andrewboyson 60:7cab896b0fd4 28 " msgTrace = Ajax.hexToBit (lines[0], 2);\n"
andrewboyson 60:7cab896b0fd4 29 " cmdTrace = Ajax.hexToBit (lines[0], 3);\n"
andrewboyson 60:7cab896b0fd4 30 " lat = Ajax.hexToSignedInt32(lines[1]);\n"
andrewboyson 60:7cab896b0fd4 31 " lng = Ajax.hexToSignedInt32(lines[2]);\n"
andrewboyson 60:7cab896b0fd4 32 " hgt = Ajax.hexToSignedInt32(lines[3]);\n"
andrewboyson 60:7cab896b0fd4 33 " hgtAboveMsl = Ajax.hexToSignedInt32(lines[4]);\n"
andrewboyson 60:7cab896b0fd4 34 " mslAboveWgs = Ajax.hexToSignedInt32(lines[5]);\n"
andrewboyson 60:7cab896b0fd4 35 " dop = Ajax.hexToSignedInt32(lines[6]);\n"
andrewboyson 60:7cab896b0fd4 36 " satCount = Ajax.hexToSignedInt32(lines[7]);\n"
andrewboyson 60:7cab896b0fd4 37 " fixQuality = Ajax.hexToSignedInt32(lines[8]);\n"
andrewboyson 60:7cab896b0fd4 38 " sensorHeight = Ajax.hexToSignedInt32(lines[9]);\n"
andrewboyson 49:115a5e4fac0c 39 "}\n"
andrewboyson 60:7cab896b0fd4 40 "function parseBuckets(text)\n"
andrewboyson 48:9f1ab7784067 41 "{\n"
andrewboyson 60:7cab896b0fd4 42 " let lines = text.split('\\n');\n"
andrewboyson 60:7cab896b0fd4 43 " bucketCount = Ajax.hexToSignedInt32(lines[0]);\n"
andrewboyson 49:115a5e4fac0c 44 " buckets = '';\n"
andrewboyson 60:7cab896b0fd4 45 " for (let i = 0; i < bucketCount; i++)\n"
andrewboyson 49:115a5e4fac0c 46 " {\n"
andrewboyson 60:7cab896b0fd4 47 " buckets += (i * 50).toString().padStart(3, '0') + ' ' + Ajax.hexToSignedInt32(lines[i + 1]) + '\\r\\n';\n"
andrewboyson 49:115a5e4fac0c 48 " }\n"
andrewboyson 49:115a5e4fac0c 49 "}\n"
andrewboyson 60:7cab896b0fd4 50 "function parse()\n"
andrewboyson 60:7cab896b0fd4 51 "{\n"
andrewboyson 60:7cab896b0fd4 52 " let topics = Ajax.response.split('\\f');\n"
andrewboyson 60:7cab896b0fd4 53 " parseVariables(topics[0]);\n"
andrewboyson 60:7cab896b0fd4 54 " parseBuckets (topics[1]);\n"
andrewboyson 60:7cab896b0fd4 55 "}\n"
andrewboyson 49:115a5e4fac0c 56 "function degToString(plus, minus, deg)\n"
andrewboyson 49:115a5e4fac0c 57 "{\n"
andrewboyson 49:115a5e4fac0c 58 " deg /= NMEA_DEG_UNIT;\n"
andrewboyson 49:115a5e4fac0c 59 " if (deg >= 0) return plus + deg.toFixed(5);\n"
andrewboyson 49:115a5e4fac0c 60 " else return minus + (-deg).toFixed(5);\n"
andrewboyson 49:115a5e4fac0c 61 "}\n"
andrewboyson 49:115a5e4fac0c 62 "function hgtToString(plus, minus, hgt)\n"
andrewboyson 49:115a5e4fac0c 63 "{\n"
andrewboyson 49:115a5e4fac0c 64 " hgt /= NMEA_HGT_UNIT;\n"
andrewboyson 49:115a5e4fac0c 65 " if (hgt >= 0) return plus + hgt.toFixed(1);\n"
andrewboyson 49:115a5e4fac0c 66 " else return minus + (-hgt).toFixed(1);\n"
andrewboyson 48:9f1ab7784067 67 "}\n"
andrewboyson 60:7cab896b0fd4 68 "function display()\n"
andrewboyson 48:9f1ab7784067 69 "{\n"
andrewboyson 60:7cab896b0fd4 70 " let elem;\n"
andrewboyson 60:7cab896b0fd4 71 " elem = Ajax.getElementOrNull('ajax-trace-gps' ); if (elem) elem.setAttribute('dir', gpsTrace ? 'rtl' : 'ltr');\n"
andrewboyson 60:7cab896b0fd4 72 " elem = Ajax.getElementOrNull('ajax-trace-verbose'); if (elem) elem.setAttribute('dir', gpsVerbose ? 'rtl' : 'ltr');\n"
andrewboyson 60:7cab896b0fd4 73 " elem = Ajax.getElementOrNull('ajax-trace-msg' ); if (elem) elem.setAttribute('dir', msgTrace ? 'rtl' : 'ltr');\n"
andrewboyson 60:7cab896b0fd4 74 " elem = Ajax.getElementOrNull('ajax-trace-cmd' ); if (elem) elem.setAttribute('dir', cmdTrace ? 'rtl' : 'ltr');\n"
andrewboyson 48:9f1ab7784067 75 "\n"
andrewboyson 60:7cab896b0fd4 76 " elem = Ajax.getElementOrNull('ajax-position' ); if (elem) elem.textContent = degToString('N', 'S', lat) + ' ' +\n"
andrewboyson 60:7cab896b0fd4 77 " degToString('E', 'W', lng) + ' ' +\n"
andrewboyson 60:7cab896b0fd4 78 " hgtToString('H', 'D', hgt);\n"
andrewboyson 60:7cab896b0fd4 79 " elem = Ajax.getElementOrNull('ajax-msl-above-wgs'); if (elem) elem.textContent = hgtToString('H', 'D', mslAboveWgs);\n"
andrewboyson 60:7cab896b0fd4 80 " elem = Ajax.getElementOrNull('ajax-hgt-above-msl'); if (elem) elem.textContent = hgtToString('H', 'D', hgtAboveMsl);\n"
andrewboyson 60:7cab896b0fd4 81 " elem = Ajax.getElementOrNull('ajax-gnd-above-msl'); if (elem) elem.textContent = hgtToString('H', 'D', hgtAboveMsl - sensorHeight * NMEA_HGT_UNIT);\n"
andrewboyson 48:9f1ab7784067 82 "\n"
andrewboyson 60:7cab896b0fd4 83 " elem = Ajax.getElementOrNull('ajax-dop' ); if (elem) elem.textContent = dop / 100;\n"
andrewboyson 60:7cab896b0fd4 84 " elem = Ajax.getElementOrNull('ajax-sat-count' ); if (elem) elem.textContent = satCount;\n"
andrewboyson 60:7cab896b0fd4 85 " elem = Ajax.getElementOrNull('ajax-fix-quality' ); if (elem) elem.textContent = fixQuality;\n"
andrewboyson 48:9f1ab7784067 86 " \n"
andrewboyson 60:7cab896b0fd4 87 " elem = Ajax.getElementOrNull('ajax-sensor-hgt' ); if (elem) elem.value = sensorHeight;\n"
andrewboyson 60:7cab896b0fd4 88 " \n"
andrewboyson 60:7cab896b0fd4 89 " elem = Ajax.getElementOrNull('ajax-bucket-count' ); if (elem) elem.textContent = bucketCount;\n"
andrewboyson 60:7cab896b0fd4 90 " elem = Ajax.getElementOrNull('ajax-buckets' ); if (elem) elem.textContent = buckets;\n"
andrewboyson 48:9f1ab7784067 91 "}\n"
andrewboyson 48:9f1ab7784067 92 "\n"
andrewboyson 60:7cab896b0fd4 93 "Ajax.server = '/nmea-ajax';\n"
andrewboyson 60:7cab896b0fd4 94 "Ajax.onResponse = function() { parse(); display(); };\n"
andrewboyson 60:7cab896b0fd4 95 "Ajax.init();"