On Monday, July 27, 2015 at 10:27:52 AM UTC-6, dl4mea wrote: > > I meanwhile tried if a 1k resistor from Vbat-Sense to ground helps: No, > does not. > > Summarizing my feeling: Feeding +5V to the back side USB helps a little, > 1k resistor over Vbat-Sense does not help. > > You might want to try connecting TP5 (BAT) to TP6 (BAT_SENSE). You can use a resistor if you want, but BAT_SENSE is a high impedance input.
These terminals would normally be connected to each other at the battery. On the BBB they are not connected to anything. The PMIC sends test currents out the BAT pin and measures the resulting voltages on the BAT_SENSE pin. These functions can't work if they are not connected. The measured voltage on BAT_SENSE may drift depending upon the leakage currents at the floating input. Dennis Cote -- 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]. For more options, visit https://groups.google.com/d/optout.
