2021-10-11 10:19 AM
After reading through DS, RefMan, AN4879 and loads of html/pdf this is what still remains unclear.
-- In the DS this is written: "When VBUS sensing feature is enabled, PA9 should be left at its default state (floating
input), not as alternate function." --> I cannot find this "VBUS sensing feature" anywhere in the Reference Manual.
Is it possible that there is no hardware function for automatic pullup-Enable-after-VBus-sensed? The pin function table does not show this for PA9.
-- Could it be that my STM32G0B1 has to detect a host connection via USB-C lines like CC and so a USB type-B connector cannot be used?
Thanks in advance,
Andreas
2021-10-11 12:36 PM
You can detect VBUS using any input pin, properly voltage conditioned.
JW
PS The quoted line about VBUS appears to be an errorneous copy/paste from different STM32 model with the Synopsys USB OTG module, @Imen DAHMEN can you please have a look at it? Thanks.
2021-10-20 07:49 AM
Hello @Community member , @Andreas Böer
Thank you for pointing out this issue.
I escalated this topic internally to the document Owner to decide which implementation will be chosen finally.
I will come back to you soon with update on the actions that will be taken.
Thanks
Imen
2021-10-20 08:09 AM
Thanks, Imen.
JW