JLINK Connnects but cannot do anything

Question

I am bring up a custom board based on the DA14706 and cannot get JLINK connection working or uart serial booting

I can do a basic connection in jlink but it doesnt respond to any commands (mem, reset, halt, etc...)

Is there something I need to do to a new chip to get it started?

OV_Renesas · Answer

Hi There, Thank you for posting your question online. 
 dovoto said: I am bring up a custom board based on the DA14706 and cannot get JLINK connection working or uart serial booting 
 Did you follow the DA1470x HW Guidelines AN-B-087 when designing the board? Please refer on the User Manual DA14706 PRO Development Kit UM-B-148, on sections 4.2 USB to UART and 4.3 USB to Serial Wire Debug Port (SWD). Please also refer on the DA1470x Datasheet . I believe you have used the correct SWD pins for the Cortex-M33 Have you connected the Reset pin on your J-link probe? If yes, is it connected to the Flash as well? Best Regards, OV_Renesas