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user75013

Member since Mar 2017 • Last active Apr 2017
  • 2 conversations
  • 5 comments

Most recent activity

  • in Puck.js
    Avatar for user75013

    Thank you Gordon, you'r right, the problem disappears when I don't call jsvUnLock(parent);
    All works fine now.
    Thank you for your help.

  • in Puck.js
    Avatar for user75013

    Hi,

    I’m currently using a PUCKJS device, for which I have added a library for specific hardware support.
    The library is compiled and linked with Espruino.
    I am able to load the PUCK with this new code, and invoque some functions of this library from JavaScript code running on the Espruino WEB IDE.
    All of that works well, except that I can observe an abnormal memory consumption where all resources should be released.

    Basically, the library contains the following code in the jswrap source:

    /*JSON{
      "type" : "class",
      "class" : "MyContextClass"
    }
    */
    
    /*JSON{
        "type" : "staticmethod",
        "class" : "MYCLASS",
        "name" : "open",
        "generate" : "jswrap_myclass_open",
        "return" : ["JsVar", "A context object or null if any error"]
    }
    */
    JsVar *jswrap_myclass_open(void) {
        JsVar *context = jspNewObject(0, "MyContextClass");
        if (! context) {
            jsExceptionHere(JSET_ERROR, "myclass resource failure");
            return NULL;
        }
        return(context);
    }
    
    /*JSON{
        "type" : "method",
        "class" : "MyContextClass",
        "name" : "close",
        "generate" : "jswrap_myclass_close"
    }
    */
    void jswrap_myclass_close(JsVar *parent) {
        jsvRemoveAllChildren(parent);
        jsvUnLock(parent);
    }
    

    Then, under the WEB IDE, I repeatadly execute the following lines:

    myContext = MYCLASS.open();
    myContext.close();
    process.memory();
    

    At each iteration, the process.memory displays a decreasing value for the "free" field and an increasing value for the "usage" field.

    Is there something missing or wrong in the close function that could explain why resource is consumed ?

    Thank you for your help.

  • in Puck.js
    Avatar for user75013

    After correcting some installation issues, i can now correctly generate the .zip file and download to the PUCKJS device.
    Thank you for your advices.

  • in Puck.js
    Avatar for user75013

    Thank you for your help. I think you're right, the problem is probably due to an installation or provision issue. This may be related to my version of Linux, witch is a bit old and not very stable. I will revue the installation process and check all the dependencies as soon as possible. I'll keep you informed.
    Again thanks a lot for your commitment and the quickness of your answers.

  • in Puck.js
    Avatar for user75013

    Hi,
    I want to add a module to the Espruino system and load it on a Puck.js device. The module is written in C and has to be compiled and linked with Espruino.
    For now, i just try to build Espruino, which i downloaded from GitHub, on a Linux machine (OpenSUSE 12.2). I run:

    make clean;DFU_UPDATE_BUILD=1 BOARD=PUCKJS RELEASE=1 make
    

    Compilation and link seams to be Ok in spite of minor warnings. The .lst .hex and .elf files are properly generated.
    I get an error in the package generation:

    ...
    GEN espruino_1v91.599_puckjs.lst
    GEN espruino_1v91.599_puckjs.hex
    Not merging softdevice or bootloader with application
    # nrfutil  pkg generate --help
    nrfutil pkg generate espruino_1v91.599_puckjs.zip --application espruino_1v91.599_puckjs.hex --application-version 0xff --hw-version 52 --sd-req 0x8C --key-file targets/nrf5x_dfu/dfu_private_key.pem
    Traceback (most recent call last):
      File "/usr/local/bin/nrfutil", line 5, in <module>
        from pkg_resources import load_entry_point
      File "/usr/lib/python2.7/site-packages/pkg_re­sources.py", line 2735, in <module>
        working_set.require(__requires__)
      File "/usr/lib/python2.7/site-packages/pkg_re­sources.py", line 690, in require
        needed = self.resolve(parse_requirements(requirem­ents))
      File "/usr/lib/python2.7/site-packages/pkg_re­sources.py", line 588, in resolve
        raise DistributionNotFound(req)
    pkg_resources.DistributionNotFound: protobuf
    make: *** [espruino_1v91.599_puckjs.hex] Erreur 1
    make: *** Attente des tâches non terminées....
    

    Do you have an idea on this problem ? Is there any software component missing ?
    Thank you for your help.

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