Out of the box error in samples/subsys/nvs with nRF52-PCA10040

[GerlichM]

Hello,

i want to use the subsys/nvs sample with the nRF52-PCA10040 board with Zephyr version 1.12
The (unedited) sample compiles fine with cmake and ninja but after flashing the following error messages occur:

***** Booting Zephyr OS 1.12.99 *****
Flash Init failed
No address found, adding 192.168.1.1 at id 1
No key found, adding it at id 2
No Reboot counter found, adding it at id 3
Id: 4 not found, adding it
Reboot counter history: Error, no Reboot counter

For some reason it cannot initialize the nvs in
...
rc = nvs_init(&fs, FLASH_DEV_NAME, STORAGE_MAGIC);
if (rc) {
printk("Flash Init failed\n");
}
...

The default configurations in prj.config are:
CONFIG_FLASH=y

CONFIG_NVS=y
CONFIG_NVS_LOG=y
CONFIG_NVS_LOG_LEVEL=4
CONFIG_REBOOT=y

Thanks!

[carlescufi]

CC @Laczen

[Laczen]

Hi @GerlichM , could you add the following line to the config file:
CONFIG_MPU_ALLOW_FLASH_WRITE=y

[GerlichM]

Hi @Laczen ,
thank you for your answer.
I added CONFIG_MPU_ALLOW_FLASH_WRITE=y to the config file,
the output still shows "flash init failed"

[Laczen]

Hi @GerlichM, I don't have a nrf52-PCA10040 board, so it is quite difficult for me to guide you.

However I have seen that the nrf52 has a flash page size of 4096, maybe this is the reason. Could you change the sample to: NVS_SECTOR_SIZE 4096 and retry.

[nashif]

not able to reproduce this with the mentioned board.