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CCS/TMS320F28335: How can a time stamp prefix be added to DSS JavaScript console output?

Thomas Cox30
Prodigy 50 points
Part Number: TMS320F28335


Tool/software: Code Composer Studio

Our project uses CSS version7.4.0 under Windows. We are running JavaScript for test automation under DSS. I've tried several timestamp approaches recommended for JavaScript, and have not found one that is supported by DSS. DSS seems to not support the require function or console.log. 

Has anyone been successful at adding a timestamp with millisecond resolution to DSS running JavaScript in a WIndows command prompt environment? If so, could you provide the JavaScript code you use?

  • 0
    TI__Guru**** 471841 points
    Hi Thomas,
    Are you looking for a mechanism where all console output (including messages directly from the debugger) automatically have a timestamp prefix? That feature is not supported. You can manually add a timestamp to you own messages ( from print() or traceWrite() ) but not the messages from the debugger. Note that DSS xml logs do have timestamp information.

    Thanks
    ki
  • 0 in reply to Ki
    Prodigy 50 points
    Adding timestamps to the output from print() and traceWrite() will be sufficient for our purposes. How would I do that?
  • 0 in reply to Thomas Cox30
    TI__Guru**** 471841 points

    You can just use the javaScript Date object:

    https://www.w3schools.com/jsref/jsref_obj_date.asp

    I do something like the below in my scripts:

    date = new Date();

    script.traceWrite("START TIME: " + date.toTimeString() + "\n");

  • 0 in reply to Ki
    Prodigy 50 points
    I tested your method, and it does work. My question is based on the need to perform automated testing using DSS scripts, where the elapsed time between two events must be logged. The elegant way to do that would be to precede each output text line to the DSS console with a time tag of the form [HH:MM:SS:.mmm] . In other words, to incorporate the time tag mechanism into traceWrite and print calls. If I were to make your two-line example a function, I would still have to find a way to execute that function after every line of text printed on the console. I don't know a way to do that...
  • 0 in reply to Thomas Cox30
    TI__Guru**** 471841 points

    Thomas Cox30 said:
    where the elapsed time between two events must be logged. The elegant way to do that would be to precede each output text line to the DSS console with a time tag of the form [HH:MM:SS:.mmm]

    yes that is the ideal solution. It is supported in the xml log but not the console output.

    Thomas Cox30 said:
    . In other words, to incorporate the time tag mechanism into traceWrite and print calls. If I were to make your two-line example a function, I would still have to find a way to execute that function after every line of text printed on the console.

    Yes you would to get the current date/time each time before you printed it to the console

  • 0 in reply to Ki
    Prodigy 50 points

    I was finally able to create a time tag that is pre-pended to console output that uses the print() function.  I have attached the JavaScript source code.for timeStamp.js below.

    // timeStamp.js - Add a time stamp prefix to output from the print() function.

    // The time stamp appears in the format [13:23:05.380].

    var printLog = print;

    print = function () {

    var first_parameter = arguments[0];
    var other_parameters = Array.prototype.slice.call(arguments, 1);

    function formatTimeTag (date) {
    var hour = date.getHours();
    var minutes = date.getMinutes();
    var seconds = date.getSeconds();
    var milliseconds = date.getMilliseconds();

    return '[' +
    ((hour < 10) ? '0' + hour: hour) +
    ':' +
    ((minutes < 10) ? '0' + minutes: minutes) +
    ':' +
    ((seconds < 10) ? '0' + seconds: seconds) +
    '.' +
    ('00' + milliseconds).slice(-3) +
    '] ';

    }

    printLog.apply( print, [formatTimeTag(new Date()) + first_parameter].concat( other_parameters ));

    };