RE: NRF52832 Debugging with NRF54L15 PDK

Jared — Wed, 05 Mar 2025 10:14:52 GMT

Hi,

It's not a requirement to connect the RESET pin for debugging the your external board. Only SWDIO, SWDCLK, VDD from target board and GND is required.

RE: NRF52832 Debugging with NRF54L15 PDK

sines — Fri, 28 Feb 2025 14:01:58 GMT

There is a button on my RESET pin. Is it obligation to connect it?

RE: NRF52832 Debugging with NRF54L15 PDK

Charlie — Fri, 28 Feb 2025 10:20:54 GMT

Hi Simsek,

Thanks for reaching us about your question.

It is quite common to program external board(either another DK or custom board) with our DK which has JLINK-OB on it.You can use the Debug out connector (P19) on the nRF54L15 PDK to program and debug your external nRF52832-based board. Connect your custom board to P19 using a 10-pin flat cable as described in the nRF54L15 DK User Guide if you have. It seems you do not design your custom board with 10-pin debug port, but it is still the same when you connect the pins manually.

Connect the following pins from your custom nRF52832 board to the P19 connector on the nRF54L15 PDK:

SWDIO to SWD0_SWDIO (Pin 2)
SWDCLK to SWD0_SWDCLK (Pin 4)
GND to GND (Pin 5)
RESET to SWD0_RESET (Pin 10)
Connect SWD0_SELECT (Pin 3) to GND on your custom board

It's recommended to power your custom board separately from the PDK. The VDDIO voltage on your external board should be within the range of 1.8 V to 3.6 V. You don't need to cut the power to the nRF54L15 chip on the PDK.

Let me know if it works when you test with above connection.

Best regards,

Charlie