2018-03-04 11:05:52 +00:00
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<!DOCTYPE html>
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<html>
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<head>
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<link rel="stylesheet" href="ina2.css">
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<title>Get ADC data</title>
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<script type="text/javascript" src="dygraph.min.js"></script>
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</head>
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<body>
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<div style="height: auto; width: auto; text-align: center;">
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<div id="div_v" style="height:400px;"></div>
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<input type="button" id="butOnOff" value="Stop">
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<input type="radio" checked name='rm1' id="FixEnd"/>
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<label for="FixEnd">Fixed</label>
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<input type="radio" name='rm1' id="FixNone"/>
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<label for="FixNone">Float</label>
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<input type="button" id="butSave" value="Save data.csv"><br>
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Window: <span id='wdsize'>?</span> sec, Sample Rate: <span id='smprate'>?</span> smps
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<div id='labdiv' style=></div>
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</div>
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</body>
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<script type="text/javascript">
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var $ = function(id) {
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return document.getElementById(id);
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}
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var stg = 0;
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var smprate = 975; // adc1: 3900 sps, adc2: 1950 sps, adc4: 975 sps, adc8: 487.5 sps
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var smps = smprate;
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var sttim = 0;
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var cur_idx = 0;
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var old_idx = 0;
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var smpsa = [];
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function wsSmpRate() {
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var idx = cur_idx, tt = new Date().getTime();
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var sps = (idx - old_idx) * 1000/ (tt - sttim);
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sttim = tt; old_idx = idx;
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smpsa.push(sps);
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var len = smpsa.length;
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if(len > 100) { smpsa.shift(); len-- };
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var csps = 0;
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for (var i = 0; i < len; i++) csps += smpsa[i];
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csps = csps/len;
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$('smprate').innerHTML = csps.toFixed(1);
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}
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var samples = 10*smprate;
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var rend = 1;
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var oldblkid = 0;
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var rdnextflg = false;
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$("butOnOff").onclick = function() {
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if(rend) {rend = 0; $("butOnOff").value = "Run";}
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else {rend = 1; $("butOnOff").value = "Stop";}
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}
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var datau = [];
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var gu;
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function wsping() {
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clearTimeout(wstt);
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ws.send('adc*');
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wstt = setTimeout(wsping, 400);
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}
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var wsUri = 'ws://rtl871x1/web.cgi'
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//var wsUri = "ws://"+window.location.host.toString()+"/web.cgi";
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ws = new WebSocket(wsUri);
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ws.binaryType = 'arraybuffer';
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ws.onopen = function(){
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ws.send('user=rtl871x:supervisor');
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ws.send('adcz'); // drv deinit
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ws.send('adcy'); // mode 2 chnl
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ws.send('adc4'); // decimation
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ws.send('adcd'); // xclk
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ws.send('sys_debug=0'); // print off
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wstt = setTimeout(wsping,50);};
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ws.onmessage = function (event) {
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if(event.data instanceof ArrayBuffer) {
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clearTimeout(wstt);
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var wordarray = new Uint16Array(event.data);
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if(wordarray.length > 2) {
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var blksz = wordarray[0];
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if(wordarray.length == blksz*2 + 2) {
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if(!sttim) {
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sttim = new Date().getTime();
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setInterval(function(){wsSmpRate()}, 500);
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} else {
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var blkid = wordarray[1] & 0xFFFF;
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if(rdnextflg) cur_idx += (blkid - oldblkid) & 0xFFFF;
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else rdnextflg = true;
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oldblkid = blkid + blksz;
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for (var i=2; i<wordarray.length; i+=2) {
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if(rend) {
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2018-03-04 15:23:47 +00:00
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// datau.push([cur_idx/smprate,wordarray[i],wordarray[i+1]]);
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datau.push([cur_idx/smprate, (wordarray[i]-11460)*0.00007757, (wordarray[i+1]-11460)*0.00007757]);
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2018-03-04 11:05:52 +00:00
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}
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cur_idx++;
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}
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if(!stg) {
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gu = new Dygraph(
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$("div_v"),
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datau,
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{
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2018-03-04 15:23:47 +00:00
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title: 'RTL8195AM ADCs',
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2018-03-04 11:05:52 +00:00
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showRangeSelector: true,
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showRoller: true,
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xlabel: 'T(sec)',
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2018-03-04 15:23:47 +00:00
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ylabel: 'U2(V)',
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y2label: 'U1(V)',
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colors: ['green','red'],
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series : { 'U1': { axis: 'y2' } },
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2018-03-04 11:05:52 +00:00
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axes: {
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x: {valueFormatter: function(x){return this.getLabels()[0] + ': '+ x.toPrecision(5);}}},
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2018-03-04 15:23:47 +00:00
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labels: ['T', 'U2', 'U1'],
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2018-03-04 11:05:52 +00:00
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labelsDiv: $('labdiv'),
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legend: 'always', // "follow"
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digitsAfterDecimal: 3,
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});
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setInterval(function(){renderChart()}, 50);
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stg = 1;
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}
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} }
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wstt = setTimeout(wsping, 40);
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} } }
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function avg(arr) {
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var arrLen = arr.length, result = 0;
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for (var i = 0; i < arrLen; i++) result += arr[i];
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return result / arrLen;
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}
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var renderChart = function() {
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var dl;
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if (gu.dateWindow_) {
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dl = gu.dateWindow_[1] - gu.dateWindow_[0];
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if ($("FixEnd").checked) {
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var ls = datau.length - 1;
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gu.dateWindow_[1] = datau[ls][0];
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gu.dateWindow_[0] = datau[ls][0] - dl;
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} else if (gu.dateWindow_[0] < datau[0][0]) {
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gu.dateWindow_[0] = datau[0][0];
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gu.dateWindow_[1] = datau[0][0] + dl;
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}
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} else dl = datau.length/smprate;
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$("wdsize").innerHTML = dl.toFixed(3);
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if(rend) gu.updateOptions({'file': datau});
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}
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function convertArrayOfObjectsToCSV(value){
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var result, ctr, keys, columnDelimiter, lineDelimiter, data;
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data = value.data || null;
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if (data == null || !data.length) {return null;}
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columnDelimiter = value.columnDelimiter || ';';
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lineDelimiter = value.lineDelimiter || '\n';
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keys = Object.keys(data[1]);
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result = '';
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result += keys.join(columnDelimiter);
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result += lineDelimiter;
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data.forEach(function(item){
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ctr = 0;
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keys.forEach(function(key){
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if (ctr > 0)
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result += columnDelimiter;
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result += item[key];
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ctr++;
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});
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result += lineDelimiter;
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});
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return result;
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}
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$("butSave").onclick = function() {
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var csv = convertArrayOfObjectsToCSV({data: datau});
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if (!csv.match(/^data:text\/csv/i)) {csv = 'data:text/csv;charset=utf-8,' + csv;}
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var encodedUri = encodeURI(csv);
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var link = document.createElement('a');
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link.setAttribute('href', encodedUri);
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link.setAttribute('download',"data.csv");
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link.click();
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}
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if(window.innerHeight > 320) $('div_v').style.height = (window.innerHeight-80) + 'px';
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window.onresize = function(){
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if(window.innerHeight > 320) $('div_v').style.height = (window.innerHeight-80) + 'px';
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// $('div_v').style.width = (window.innerWidth-50) + 'px';
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}
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</script>
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</html>
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