Hi all,
To keep this short and sweet:
I am programming an Cortex M0 nrf51822 MCU and has been going great on another of my projects, this project (in schematic) is causing trouble programing over swd.
Currently to program i am using a Keil Ulink PRO with a tc2032 tag connect to the board, i used to use the VCC from the u link/tc2032 for programing but omitted this as I can power the device by usb or LiPo while programing, however this seems to be causing issue.
If i use my previous board which allows to power via the ulink the board is recognized in keil, however if i remove the power and simply power by the usb or LiPo i get nothing.
Any ideas?
The schematic is attached.
EDIT: The TC2032 VCC was connected before to +3v3 and thus directly to the chip and not through LDO.