• State
  • Locked Locked
  • Replies 5 replies
  • Subscribers 82 subscribers
  • Views 455 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TMS320F28069M: Launchpad shuts off immediately after connecting

Prashant Mishra
Prodigy 100 points

Part Number: TMS320F28069M

Hello, 

My launchpad shuts off abruptly after connecting to the computer. I was working fine some moment ago. Can you suggest any probably issue and solution please. I checked it by connecting to some other computer as well. Please see the attached video. 

Thanks, 
Prashant

  • 0
    TI__Mastermind 45606 points

    Hi Prashant,

    Can you try some of the different BOOT modes listed below by setting S1 switch settings? See if the behavior is different at all.

    Do you have a power supply with current limiting capabilities you could try powering the board with instead of over 5V USB? You can remove shunts on JP1 and JP2 and then power the F2806x side of the board with 3.3V power (maybe ~500mA current cap on the supply).

    Best,

    Kevin

  • 0 in reply to Kevin Allen18
    Prodigy 100 points

    Thank you for response Kevin, 

    I tried it. It didn't work. it shuts off. I also noticed that C2000 chip is getting extremely hot instantly. 


    -Prashant

  • 0 in reply to Prashant Mishra
    TI__Mastermind 45606 points

    Hi Prashant,

    Did you try with a current limiting power supply like I mentioned? It sounds like the F2806x device is likely damaged and needs to be replaced. Or you'll need a new LaunchPad all-together.

    Before the LaunchPad stopped working were you doing any specific kind of testing? Maybe the board was dropped or touched that could cause ESD damage?

    Best,

    Kevin

  • 0 in reply to Kevin Allen18
    Prodigy 100 points

    Hello Kevin,

    I have not been able to check with the current limiting power supply. I too think that my F2806x device might have been damaged. I did a test with ADC and then transported the launchpad to employ in the experiment. It had stopped working. Perhaps ESD damage might have been a probable reason. 
    Any suggestions to prevent such accidents in future?

    Regards, 
    Prashant 

  • 0 in reply to Prashant Mishra
    TI__Mastermind 45606 points

    Hi Prashant,

    Prashant Mishra said:
    Perhaps ESD damage might have been a probable reason. 
    Any suggestions to prevent such accidents in future?

    Wearing an ESD strap while touching / working with the board is one of the best ways. At the least, avoid touching any ICs / circuits on the board itself.

    Prashant Mishra said:
    did a test with ADC and then transported the launchpad to employ in the experiment. It had stopped working.

    Can you provide some details on the experiment your conducting and the connections made to the LaunchPad? Another way the devices could get damaged is from EOS. It would be good to ensure the experiment is not causing potential EOS before conducting it again.

    Best,

    Kevin