How to program firmware to external SPI Flash of nRF54L15

Question

Hi Support Team

We follow the guidance of the following link to program firmware to external SPI Flash of nRF54L15,but it failed.

https://docs.nordicsemi.com/bundle/nrfutil/page/nrfutil-device/guides/programming_external_memory.html#example-for-spi-on-nrf54l15

The following screenshot is schematic of external flash connected with nRF54L15.

And the attachments are the .json file I used for the nRF Util command and the log. Could you help analyze this issue? Many thanks.

Fullscreen 0601.nrf54l15_spi_config.json Download

{
    "firmware_config": {
      "peripheral": "SPIM00"
    },
    "pins": {
      "sck": 26,
      "csn": 27,
      "io0": 6,
      "io1": 8,
      "io2": 67,
      "io3": 64
    },
    "flash_size": 8388608,
    "page_size": 4096,
    "sck_frequency": 8000000,
    "address_mode": "MODE24BIT"
  }

Fullscreen 2766.nordic_flash.txt Download

C:\mcDev\mc_code\l5_e1_sol\build_testuart>nrfutil device --x-ext-mem-config-file ./nrf54l15_spi_config.json program --firmware merged.hex --serial-number 69405822
error: unexpected argument '--x-ext-mem-config-file' found

  tip: a similar argument exists: '--x-qspi-config-file'

Usage: nrfutil device <--x-qspi-config-file <PATH>>

For more information, try '--help'.

C:\mcDev\mc_code\l5_e1_sol\build_testuart>

Application Ninja · Answer

OK, the documentation needs to be cleaned up a bit...

In one section it states the command is:

nrfutil device program --x-ext-mem-config-file <path_to_config_file> --firmware <hex_file> --serial-number <serial_number> [--options]

But just a few lines below it's is corrected as:

nrfutil device --x-ext-mem-config-file ../../nrf-probe/resources/firmware_config/nrf5340dk_qspi_config.json program --firmware data_going_to_external_flash.hex --serial-number 1050065027

With the note:

The --x-ext-mem-config-file option is available from the nrfutil device command level, hence program in this example appears after the flag.