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EAGLE User Support (English) BeagleBone black
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BeagleBone black

Former Member
Former Member over 10 years ago

Hi,

2 weeks ago - I obtained BeagleBone black. I uninstalled completelly the following services:

cloud9.service

gateone.service

bonescript.service

bonescript.socket

bonescript-autorun.service

avahi-daemon.service

gdm.service

mpd.service

 

Following commands works well:

echo 39 > /sys/class/gpio/export 

echo out > /sys/class/gpio/gpio39/direction 

echo 1 > /sys/class/gpio/gpio39/value 

 

But the GPIO ports flashes with frequency approximatelly 2 HZ. I cannot stop that. The timers aren't initialized. Additionally - I tested with external MMC card and Amstrong image. The situation is the same. I suppose - the processor has hardware defect.

Can you advice me - how to proceed?

 

Best regards:

Darin Masov

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  • shabaz
    shabaz over 10 years ago in reply to Former Member +2
    I don't think discussions should be deleted unnecessarily - the information could help someone else if not you - I took effort creating my reply. Better to move the discussion to another location however…
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  • shabaz
    0 shabaz over 10 years ago

    Hi Darin,

     

    Your question is in the wrong thread (EAGLE is not related to Beaglebone). Anyway, you should be getting higher speed but it still doesn't sound like a hardware defect. You have not shown your code or script that caused 2Hz

    flash rate so it is hard to help further.

    Anyway, the BBB GPIO method described here allows for around 2MHz rate.

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  • Former Member
    0 Former Member over 10 years ago in reply to shabaz

    "You have not shown your code or script that caused 2Hz"

    That is the problem - I did not initialize any script to blink at 2 HZ. GPIO do not need to blink.

    Now I will try try to find the correct thread.

     

    p.s. I will be thankful if someone delete the discussion.

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  • Former Member
    0 Former Member over 10 years ago in reply to shabaz

    "You have not shown your code or script that caused 2Hz"

    That is the problem - I did not initialize any script to blink at 2 HZ. GPIO do not need to blink.

    Now I will try try to find the correct thread.

     

    p.s. I will be thankful if someone delete the discussion.

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  • shabaz
    0 shabaz over 10 years ago in reply to Former Member

    I don't think discussions should be deleted unnecessarily - the information could help someone else if not you - I took effort creating my reply.

    Better to move the discussion to another location however.

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