Write to flash with softdevice and mesh S113

Question

Hi,

I try to write some data into the flash memory, but I always get a hardfault when I try to use the write function provided from the examples:

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uint32_t nrf_flash_write(uint32_t * p_dst, const uint32_t* p_src, uint32_t size)
{
    if (!IS_WORD_ALIGNED(p_dst) || !IS_WORD_ALIGNED(p_src))
    {
        return NRF_ERROR_INVALID_ADDR;
    }
    if (size == 0 || !IS_WORD_ALIGNED(size))
    {
        return NRF_ERROR_INVALID_LENGTH;
    }
#if !defined(HOST)
    size /= WORD_SIZE;
    /* Turn on flash write enable and wait until the NVMC is ready: */
    NRF_NVMC->CONFIG = (NVMC_CONFIG_WEN_Wen << NVMC_CONFIG_WEN_Pos);
    wait_for_ready();
    while (size--)
    {
        if (*p_src != FLASH_BLANK_WORD)
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

uint32_t nrf_flash_write(uint32_t * p_dst, const uint32_t* p_src, uint32_t size)
{
    if (!IS_WORD_ALIGNED(p_dst) || !IS_WORD_ALIGNED(p_src))
    {
        return NRF_ERROR_INVALID_ADDR;
    }
    if (size == 0 || !IS_WORD_ALIGNED(size))
    {
        return NRF_ERROR_INVALID_LENGTH;
    }
#if !defined(HOST)
    size /= WORD_SIZE;

    /* Turn on flash write enable and wait until the NVMC is ready: */
    NRF_NVMC->CONFIG = (NVMC_CONFIG_WEN_Wen << NVMC_CONFIG_WEN_Pos);

    wait_for_ready();

    while (size--)
    {
        if (*p_src != FLASH_BLANK_WORD)
        {
            *p_dst = *p_src;
            wait_for_ready();

        }
        p_dst++;
        p_src++;
    }

    /* Turn off flash write enable and wait until the NVMC is ready: */
    NRF_NVMC->CONFIG = (NVMC_CONFIG_WEN_Ren << NVMC_CONFIG_WEN_Pos);

    wait_for_ready();

#else
    memcpy(p_dst, p_src, size);
#endif
    return NRF_SUCCESS;
}

No I think this is because of the softdevice, that is stopped for an amount of time. There is also a mesh_flah.c available, but I don't see any functions for writing to the flash. What I actually need is some functionality, such that I can write a uint8_t array with specific length to the flash and then read it again.