Programming of external QSPI flash on nRF54L15

[Tommy F Kristensen]

Hi Nordic

Is the command:

nrfjprog -s 820100511 --qspiini Qspinrf54l15.ini --qspichiperase --program  nrf54l15_FILES.bin --log

We did use it for nRF52840, where able to preload the external QSPI flash with data. 

The file Qspinrf54l15.ini holds the hw config for the external flash

The file  nrf54l15_FILES.bin holds a image of the external flash

Best Regards 

Tommy F Kristensen

[Håkon Alseth]

Hi,

 

"nrfutil device" is able to interface a external flash device connected via a (supported) nRF device:

https://docs.nordicsemi.com/bundle/nrfutil/page/nrfutil-device/guides/programming_external_memory.html#programming-external-memory-command

Initial read from flash IC: 

nrfutil device --x-ext-mem-config-file nrf54l15_ext_mem.json read --address 0x10000000
1057706745
0x10000000: FFFFFFFF                              |....|

Writing "0xDEADBEEF" to the first address in the external flash and reading it back:

nrfutil device --x-ext-mem-config-file nrf54l15_ext_mem.json write --address 0x10000000 --value 0xDEADBEEF
✔️ Data written to 1057706745

nrfutil device --x-ext-mem-config-file nrf54l15_ext_mem.json read --address 0x10000000
1057706745
0x10000000: DEADBEEF                              |....|

 

I used the configuration as shown in the docs: https://docs.nordicsemi.com/bundle/nrfutil/page/nrfutil-device/guides/programming_external_memory.html#example-for-spi-on-nrf54l15

 

Kind regards,

Håkon