Use PWM Output at J4-15

  • Hello,


    i find only a few hints to the registry settings and a file "pwm_sdh.h",
    this file was not fount on my system.
    Where do i find more information to the driver for PWM output ?


    Regards
    Thomas

  • Hello,

    Quote

    Where do i find more information to the driver for PWM output ?

    Please use Device Driver Document for FSVYBRID.
    You will it here https://www.fs-net.de/de/produkte/netdcu/netdcua5/ -> Documents.


    Quote

    ... a file "pwm_sdh.h", this file was not fount on my System.

    Which SDK have you installed? I found it in FSVybrid WEC7 and FS Vybrid WEC2013 SDK. Thereby the content:


    F&S Elektronik Systeme GmbH
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    Edited 2 times, last by fs-support_ZU ().

  • Hello,


    the SDK is Win CE 60 for NETDCUA5 with Visual Studio 2008


    please give me a sample to use the driver, like this:


    // open File handler
    hPWM = CreateFile(_T("PWM1:"), .................................);


    // write to set pwm output parameter
    WriteFile(hPWM, ...........................);



    is this file pwm_sdk.h ok to include to my project with win ce60 ?


    Thanks
    Thomas

  • Hello,


    the code is independend from the OS in use. Do you really need support for calling OS functions;). If registry value "Mode" is configured as "percent mode" following results a PWM with 40% high phase:


    Note, by default PWM is deactivated (registry value Flags=4). Please delete this value to activate the driver.
    Any problems? Which values return "GetLstError()"? Which Information si shown on the serial debug line (driver loaded)?

    F&S Elektronik Systeme GmbH
    As this is an international forum, please try to post in English.
    Da dies ein internationales Forum ist, bitten wir darum, Beiträge möglichst in Englisch zu verfassen.

  • Hello,


    thanks for the sample, it works.


    I need a tunable PWM Frequency from 50-70Hz, but the registry setting for PWM frequency lower than 1260 has no effect.
    The lowest Frequency is always 1260Hz.


    Is it possibility to set the PWM frequency in the range between 50-70Hz ?


    Thanks
    Thomas

  • Hello,


    i checked out:
    at the time PWM driver uses Vybrids Flex Timer Module and IPS Clock as source clock. This results in a minimal frequency of 1259.3Hz (=1260Hz)!
    For go below this limt a driver modification is needed.


    Any deadlines? At the time we are busy.

    F&S Elektronik Systeme GmbH
    As this is an international forum, please try to post in English.
    Da dies ein internationales Forum ist, bitten wir darum, Beiträge möglichst in Englisch zu verfassen.

  • Hello,


    there's no hurry,
    but it's important to tune the frequency with my application without reset windows.
    The best solution are, when i can set the output frequency in 1Hz steps from 45 to 100Hz.
    At this moment it is importent to know is it possible to modyfy the driver with this function ?


    Otherwise i must generate the signal with external Hardware.
    In the next Days i must finalize the hardware. For the Software they are another 4 weeks.


    kind regards
    Thomas

  • Sorry for delayed answer, i will try it latest at KW23/2016.

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  • Hello, attached you will find the pwm driver V1.5 for WCE6/WCE7.
    I test according the code below (unforunately under WEC2013 but this should be not significant). Does this driver fulfills your desire?

    Files

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  • Hello,
    any news about your tests?
    Does this driver fulfills your desire?

    F&S Elektronik Systeme GmbH
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    Da dies ein internationales Forum ist, bitten wir darum, Beiträge möglichst in Englisch zu verfassen.

  • Hello,
    nice that everything is working fine now. If any further issue about pwm features please come back to this thread.
    Thank you too for your patience.

    F&S Elektronik Systeme GmbH
    As this is an international forum, please try to post in English.
    Da dies ein internationales Forum ist, bitten wir darum, Beiträge möglichst in Englisch zu verfassen.