Hi,
I’ve noticed that one of the differences between BeagleBone Enhanced and Black is the P9 pin 5 and 6. For Black, it’s VDD_5V whereas for Enhanced it’s changed to USB_DC.
VDD_5V in Black comes directly from the DC Barrel Input. However, I’m not sure where USB_DC came from, but I assume it’s coming from the USB input.
What is the proper way to power up the Enhanced board then, if I need to power it up using the expansion ports?
Thanks,
Mary
I’ve noticed that one of the differences between BeagleBone Enhanced and Black
is the P9 pin 5 and 6. For Black, it’s VDD_5V whereas for Enhanced it’s changed
to USB_DC.
on the schematic for the BBE (BeagleBoneEnhanced/V1G/SanCloud_BeagleBone_Enhanced_1G.PDF at master · SanCloudLtd/BeagleBoneEnhanced · GitHub) P9 pin 5+6 are
labelled ‘cape_5v’. they’re routed to the ‘AC’ input of the TPS65217 PMIC
chip, which is exactly the same setup as on the BBB schematic, regardless of the
label.
What is the proper way to power up the Enhanced board then, if I need to power
it up using the expansion ports?
on our bespoke cape/board all kinds of beagles are powered via
external 5v into pin5+6, and that definitely works
fine for BBB, BBBW(ireless), BBE(enhanced) and BBG(reen)G(ateway).