Raspberry 4 Charger for Pinephone?
#6
(12-26-2020, 07:51 PM)evilbunny Wrote:
(12-26-2020, 06:59 PM)jojuma Wrote: Hello,

I can't charge the Pinephone while it's powered on. 
Finding a power supply with the specified values (15W (5V 3A) USB -PD) and USB-C is not that easy.
So how about the power supply of the Raspberry Pi 4? It comes with USB-C and 5.1V/3A.
Does that 0.1V really make a difference?
If you don't recommend it, could you point me to a different one?
I'm in Europe btw...

Thanks for your help!

I had the same problem as you, it was fixed by blacklisting the anx7688 module


echo "blacklist anx7688" >> /etc/modprobe.d/blacklist.conf

I'm afraid I'm not expert enough to understand that. What exactly does that blacklisting do and how does that solve the problem?

(12-27-2020, 10:39 AM)wibble Wrote: Megous recommends basic chargers using the Battery Charging spec as being more reliable than ones supporting Power Delivery. The BC ones will 'Just Work'™ while the PD ones need the right combination of ANX firmware and kernel driver support. Details here: https://xnux.eu/devices/feature/anx7688.html

So I understand anx7688 is a driver handling the charging process. The description says:

Quote:In some configurations (with 3A USB-C PD charger) AXP803 resets the VBUS input current limit by itself to 500mA, so PP will not charge (much)
  • Forcing the input current limit back up leads to instability (looks like AXP is resetting the limit due to voltage drop on VBUS) and input current fluctuates between 0 and ~1.3A

Is there a way to check if that happened? And if so, it can't be fixed since fixing leads to instability? That means a problem, right?

Or am I wrong with this assumption?
  Reply


Messages In This Thread
Raspberry 4 Charger for Pinephone? - by jojuma - 12-26-2020, 06:59 PM
RE: Raspberry 4 Charger for Pinephone? - by jojuma - 12-30-2020, 06:47 PM

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