Use nrf_fstorage_sd with nrf_sdh_ble_enable

[Automne]

Hi, I'm using SDK15.2.0 and A nRF52832 for my project.

I followed the "flash_fstorage" example give by Nordic, to write in the flash memory in my project. 

When I run my program the function nrf_fstorage_erase(&fstorage, address, 1, NULL); and nrf_fstorage_write(&fstorage, address, &data, sizeof(data), NULL); work perfectly but after I had called nrf_sdh_ble_enable(), the functions nrf_fstorage_erase() and nrf_fstorage_write() don't work anymore even if I don't use BLE.

The SVCALL is never called to write or erase the flash, I still stuck in nrf_fstorage_is_busy().

Do I need to change some priorities in sdk_config.h ?

Thanks, Automne

[Vidar Berg]

Glad to hear that you were able to make it work:) It sounds like you are satisfied with this solution but are you receiving any SoC events from the Softdevice when you use sd_flash* API directly?  

[Automne]

I wired the problem, the function sd_evt_get(uint32_t * p_evt_id) wasn't called after we get the event NRF_EVT_FLASH_OPERATION_SUCCESS to clear the flag is_busy.

[bgarrood]

Hello,

I am having the same problem.  In the end did you stay with this solution of using the sd functions directly?  Did you manage to get a callback confirming the operation was successful?  I don't fully understand your comment below "I wired the problem"  -did you manage to get fstorage working?  how?  

Seems to be a problem with the fstorage library right?  i know fds is the preferred route but seems like overkill for simple storage of a few settings.

many thanks

Barney

[Automne]

Hi Barley,

The fds was also too much for my use case. I continue to call the function directly.

In the example fstorage work properly, but in my code it isn't working, the flag is_busy isn't clear after the success of the operation, I don't know what's append inside Nordic code.

I call sd_evt_get(uint32_t * p_evt_id) when the operation flash/write return a success :

void flash_page_clear(uint32_t address)
{
    uint32_t i = 0, j = 0, evt_id = 0xff, err = 0xff;

    err = sd_flash_page_erase((uint32_t)(address/FLASH_PAGE_SIZE));
    log_dbg("sd_flash_page_erase, ret code : %d", __func__, err);
    for(j = FLASH_OP_MAX_RETRIES; j!=0 && evt_id != NRF_EVT_FLASH_OPERATION_SUCCESS; j--)
    {
        for(i = 1000;i != 0
        && evt_id != NRF_EVT_FLASH_OPERATION_SUCCESS
        && evt_id != NRF_EVT_FLASH_OPERATION_ERROR; i--)
        {
            delay_ms(1);
            err = sd_evt_get(&evt_id);
        }
   }
    delay_ms(1);
    log_dbg("i = %d, evt_id = %d", __func__, i, evt_id);
}

[Vidar Berg]

bgarrood, it might be better if you post a new question with more details about your setup in case your issue is caused by something else (whether you use the Softdevice or not, etc.).

Anyway, have you tried the sample code I posted above (link)?