Hi there,
To put a little bit of context, I've designed a wearable that is now going towards pre-production (only some minors fix left to do). In the last iteration, we swapped the nRF52832 module for the nRF52840 for memory issues and to remove the UART interface we had since the nRF52840 has a USB feature.
Now, my mistakes was that I missed the part were the 5V USB pin was needed for the USB features and I don't have external pull-up for the USB lines.
So I was wondering if its possible to have a temporary workaround that would let us test & use the actual board until we fix the PCB in the next design.
I have a power management IC that detect the USB power as would the 5V USB Pin.
I thought of connecting the event generated by the PMIC to the event that the USB pin would generate and use internal pull-up for the USB pins?
Thing is, our board supply is 1.8V.
Do you think we can do something with that?
Also, our application is based on SDK15.3 and S140 6.1.1.
Many thanks,
