> > Can you say more about this "IT kit"? I'm wondering if it was trying to > draw excessive current. The board itself can work off of USB power just as > well as the power jack, depending on what external hardware is connected. > basically it was just to say that I'm using a 5V / 2A quality source. It's from an IT development kit.
> Does the power LED come on? > The power led flash fast one time. unfortunately the board is dead :| I made some mistakes and I believe there was some leakage of some peripherals to the GPIOs while the bord was off or early in the power on sequence, since I had an acpe powered by the VDD_5V and not by the SYS_5V. Another problem I detected was a link in a transistor that drains between 5ma and 6ma when my limit should be 4ma. It was switch to a BJT or FET transistor with current drain in the house of micro amps, so I hope to eliminate this problem. Thank you for your attention. Em terça-feira, 12 de março de 2019 11:53:15 UTC-3, Jason Kridner escreveu: > > > > On Monday, March 11, 2019 at 5:31:56 PM UTC-4, Rogério Lucas wrote: >> >> Hello everyone, >> >> I need help and would be grateful for any help to understand what >> happened with a unit of my BBB wireless. I'm not looking for RMA, but only >> to understand what might have caused the board to burn. >> >> It happened the following: >> The board was plugged into an LCD and connected to a 5V - 2A power supply >> (it came from an IT kit with an am335x) and also connected with a USB cable >> on my Macbook; >> I had been using this board with no problem, and last night I execute a >> halt on the command line and went to sleep. In the morning I instead of >> unplugging the USB cable I just turned off the power supplying the 5V >> source and forgot to disconnect the USB cable, so I stayed for some time >> connected only by the USB port, but as I was in halt and nothing happened, >> so I turned on the 5V source again and then the board did not call anymore. >> > > Can you say more about this "IT kit"? I'm wondering if it was trying to > draw excessive current. The board itself can work off of USB power just as > well as the power jack, depending on what external hardware is connected. > > Does the power LED come on? > > Can you try booting from the image on http://beagleboard.org/latest-images > ? > > >> >> I had plans to create a custom version of the board with a onboard LCD >> input, a DAC and a few more components, but I'm scared to now. I'm in the >> middle of a very big project, i do not know what direction I should take >> now. I'm afraid to continue with the platform as the basis for my project. >> >> I do not know if there was a problem in the power source during the >> night, I'm very worried because the board just short circuit without using >> it, I'd be very happy if I knew I did something wrong, but it's not the >> case. >> >> I would also like recommendations to project a Surge Protection Device. >> Any help is welcome. >> >> Thanks in advance! >> > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/cd7024ae-47ed-4cf6-bbe9-1570d7543945%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
