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more GPS config

pull/563/head
Gordon Williams 2020-09-22 09:07:53 +01:00
parent a0b2aa30d2
commit 8623bc7f96
1 changed files with 26 additions and 5 deletions
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31
testing/GPS-comms.js
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@ -1,13 +1,13 @@
Bangle.setGPSPower(1)
//Bangle.on('GPS',print);
/*Bangle.on('GPS-raw',function (d) {
Bangle.on('GPS-raw',function (d) {
if (d[0]=="$") return;
if (d.startsWith("\xB5\x62\x05\x01")) print("GPS ACK");
else if (d.startsWith("\xB5\x62\x05\x00")) print("GPS NACK");
// 181,98 sync chars
else print("GPS",E.toUint8Array(d).join(","));
});*/
});
function writeGPScmd(cmd) {
var d = [0xB5,0x62]; // sync chars
d = d.concat(cmd);
@ -91,9 +91,9 @@ function getUBX_CFG_GNSS() {
for (var i=4;i<a.length;i+=8) {
info.configs.push({
gnss : ["GPS","SBAS","Galileo","BeiDou","IMES","QZSS","GLONASS"][a[i+0]],
enabled : a[i+4]&1,
reservedCh : a[1+1],
maxCh : a[i+2],
enabled : a[i+4]&1,
sigCfgMask : a[i+6],
flags : [a[i+4],a[i+5],a[i+6],a[i+7]]
});
@ -107,14 +107,35 @@ function getUBX_CFG_NMEA() {
print("CFG_NMEA",a.join(","), a.length);
var info = {
filter : a[0],
nmeaVersion : {0x4b:4.11,0x41:4.1,0x40:4,0x23:2.3,0x21:2.1}[a[1]],
nmeaVersion : {0x4b:"4.11",0x41:"4.1",0x40:"4",0x23:"2.3",0x21:"2.1"}[a[1]],
flags : a[3]
};
print(info);
});
}
getUBX_CFG_NMEA();
function setUBX_MGA_INI_TIME_UTC() {
var a = new Uint8Array(4+24);
a.set([0x13,0x40,24,0]);
a.set([ 0x10, // 0: type
0, // 1: version
0, // 2: ref - none
0x80] ); // 3: leapsecs - unknown
var d = new Date();
d.setTime(d.getTime()+d.getTimezoneOffset()*60000); // get as UTC
var dv = new DataView(a.buffer, 4);
dv.setUint16(4, d.getFullYear());
dv.setUint8(6, d.getMonth()+1);
dv.setUint8(7, d.getDate());
dv.setUint8(8, d.getHours());
dv.setUint8(9, d.getMinutes());
dv.setUint8(10, d.getSeconds());
dv.setUint16(16, 10*60); // seconds part of accuracy - 10 minutes
writeGPScmd(a.slice());
}
setUBX_MGA_INI_TIME_UTC();
Bangle.on('GPS',print);
// UBX-MGA-INI-TIME_UTC looks promising for a start time