Edge2: Is there a charging IC on the board?

Which system do you use? Android, Ubuntu, OOWOW or others?

Android

Which version of system do you use? Khadas official images, self built images, or others?

self built images

Please describe your issue below:

Edge2: Is there a charging IC on the board?
for example:
BQ25890

There is no charging IC on the board.

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Thank you for your answer!!

In addition, this section involves fast charging PD, so which network identifier is outputted to power the system after inputting from type-c?

It is VBUS_TYPEC_P.

oops!
VBUS_ TYPEC_ P is the final effective voltage output by this chip
So VCONN12, VCONN_ 13->VCCA What is the output voltage of VCCA for?