I have fought this same problem, thought it was resolved, and found it
again. I think the authoritative answer is in this TI app note:
https://www.ti.com/lit/an/slva901/slva901.pdf?ts=1597613555964_url=https%253A%252F%252Fwww.google.com%252F
Cutting to the chase, either ground the BAT terminal
] PocketBeagle Power Problems
There is something wonky with VIN_AC. If you physically remove power, then
things seem fine, but using PB for off and on can lead to a state where it
won't turn on. USB1_VIN works better for some reason.
Does anyone know how to read/change PMIC registers after
There is something wonky with VIN_AC. If you physically remove power, then
things seem fine, but using PB for off and on can lead to a state where it
won't turn on. USB1_VIN works better for some reason.
Does anyone know how to read/change PMIC registers after Linux has loaded?
i2ctools
Very recent PB’s. My power supply is a combo li ion battery and TI charge
boost converter which does glitch when switching from usb input to
battery. The bigger problem is when it won’t power on till I bleed the
voltage from Vbat. I have not seen this glitch mentioned anywhere. I have
found it
On 20/5/20 10:00 am, Pablo Rodriguez wrote:
> Vin on same pocket Beagle is bugged, havent seen any official statement but
> all My pb( like 6) have the same random reset when powered by Vin. Not when
> powered from vusb with the same power supply.
> Good luck
Are these recently purchased boards
Vin on same pocket Beagle is bugged, havent seen any official statement but
all My pb( like 6) have the same random reset when powered by Vin. Not when
powered from vusb with the same power supply.
Good luck
El mar., 19 de may. de 2020 7:02 PM, Paul Beam
escribió:
> I have been trying to work
I have been trying to work through some PocketBeagle power weirdness. I
have an external battery backed supply which outputs 5V. If I route power
into Vin (P1.1) I run into problems with glitches from my power supply when
I plug or unplug a USB charger. The worst problem seems to be that
