how to read the data from flashstorage which is written in flash

[ps_anu]

Hi folks,

I am working on ble_app_uart example program nRF52 SDK 15.2 Verion , in this case i am writing the data in flash for future use , Now i am to get the specific  data from flash, how to do that? 

guide me 

[Simonr]

Hi

That would be the function below. Then you can add a few lines to print the data using I.E. NRF_LOG_INFO to print the data you've just read.

static uint32_t number;
ret_code_t rc = nrf_fstorage_read(
    &my_instance,   /* The instance to use. */
    FLASH_ADDR,     /* The address in flash where to read data from. */
    &number,        /* A buffer to copy the data into. */
    sizeof(number)  /* Lenght of the data, in bytes. */
);
if (rc == NRF_SUCCESS)
{
    /* The operation was accepted. */
}
else
{
    /* Handle error.*/
}

Best regards,

Simon

[ps_anu]

char *name[80]="hello";
  char newname[80];
    rc = nrf_fstorage_write(&fstorage, 0x3f000, name, sizeof(name), NULL);
    APP_ERROR_CHECK(rc);
    
      printf("Write data \"%s\" to flash.\n", name);


 
    rc = nrf_fstorage_read(&fstorage, 0x3f000,&newname, sizeof(newname));
    APP_ERROR_CHECK(rc);
  printf("read data \"%s\" to flash.\n", &newname);

    wait_for_flash_ready(&fstorage);

In this above case, i can't able to print the read data , tell me if  i have done any mistake. my code is correct or not