ERROR when programming my custom pcb with NRF51288 DK PCA10028

[miguebinario]

Hello everyone, I've been trying to solve this problem for several days.

Hello everyone, I've been trying to solve this problem for several days. I have developed a custom-built PCB based on the NRF51288 chip but I can not use the NRF51 DK evaluation kit to program through SW DEVICE.

I make the following connection: vteg -> vbat (target) SWDIO -> SWDIO (target) SWDCLK -> / SWDCLK (target) GND -> GND (target)

Commented that my custom PCB incorporates a 16Mhz quartz crystal and I have not put the other quartz crystal as in the design guides is optional.

If I do not connect my PCB as I can correctly program the NRF51DK KIT but when I connect my PCB to measure then it can not program my code.

I've also tried to program it using the uVision program and the exact same thing happens. In this case the program gives me error: SW Device not found.

001.PNG

When I feed my custom PCB it stops recognizing the SW device.

002.PNG

Routed PCB PCB.PNG

LOG J-LINK FLASH jlinkflash.PNG

[miguebinario]

My PCB is powered by a CR2032 battery and the VTEG pin transmits it to 2.85v. I have reviewed the schematic and routing of the PCB and apparently I have no short circuit and I have also checked the crystal checking that it is correct. When I do the baypass between VDD and VTEG (between the pins of the DK) when uploading the program the DK is reset and does not load the program on my custom pc.

I keep trying ...

I have purchased a JLINK to upload to the code, on Friday I receive it at home .... Can this be the solution?