Programming nRF54L15 prototypes using nRF54L15DK

RE: Programming nRF54L15 prototypes using nRF54L15DK

PaKa — Mon, 27 Jan 2025 18:35:49 GMT

Make sure to use a short cable, shorter is better.

RE: Programming nRF54L15 prototypes using nRF54L15DK

krog1 — Mon, 27 Jan 2025 18:34:09 GMT

Thanks! That works great. Still having some issues flashing the device, but it looks like others have had the same issues, so I'll go through the answers on devzone for that. Much appreciated, Daniel.

RE: Programming nRF54L15 prototypes using nRF54L15DK

Daniel Chisholm — Mon, 27 Jan 2025 18:19:53 GMT

The voltage on the L15DK board is programmable, which is where I think the 1.8V you are seeing is coming from. Use the "Board Configurator" tool, which is available via "nRF Connect for Desktop", and you should be able to change it:

Looking at the schematic "PCA10156_Schematic_And_PCB.pdf" (from Hardware files For the nRF54L15 DK) and also the board outline and block diagram from Hardware Description, it would seem to me that picking up power from any of the "VDDIO" pins would be your best bet (see the "VDD_nRF supply buffer -> VDDIO" section in the schematic)

RE: Programming nRF54L15 prototypes using nRF54L15DK

krog1 — Mon, 27 Jan 2025 17:41:18 GMT

OK, thanks for the quick response.

Is there ~3V available anywhere on the DK? I'm only finding 5.2V and 1.8V.

Thanks,

Chris.

RE: Programming nRF54L15 prototypes using nRF54L15DK

PaKa — Mon, 27 Jan 2025 09:22:43 GMT

There are no such solderbridges on the nRF54L15 DK so power must be supplied some other way to your external target. You can tap one of the power rails on the DK but not supply it through the 10 pin cable.