On Monday, December 23, 2013 at 12:30:32 PM UTC-8, José Luis Redrejo wrote: > > I've made a power supply to power my BBB, but whenever I connect it > (to pins 5 & 1 of P9 connector for VDD & GND), the power led blinks > for some seconds and then it is off. > > The output comes from a 7805CKCT, which can provide up to 1.5A. > > It's a typical power supply from a rectifier + capacitors + regulator. > > What does this "blinking" mean? any ideas of what is going wrong? > > Regards > José L. > > This is an old thread, but I thought I'd add a solution. I found that the BBB would reset part way through booting when powering the BBB via the barrel connector or Vdd_5v pins. I needed to add a large capacitor. 10,000 uf did the job.
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