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

[AmbystomaLabs]

Are you using p19 or p20 on the DK?

Having the JLINK will certainly rule out issues with the DK sensing your board and switching to the debug port.

[miguebinario]

I already received J-LINK EDU. I connected my board this way. link text

I edited the original message and added an image of my routed PCB in altium. if someone could help me...

[Turbo J]

A CR2032 with only ~2.8V output is not enough to program an NRF51x successfully - you will need a full cell or another voltage source.

[miguebinario]

I've applied 3.3v with a lab source and still can not program it.

[miguebinario]

ERROR: Communication timed out: Requested 20 bytes, received 0 bytes !