RE: pstorage store issue

kk — Thu, 14 Aug 2014 07:38:53 GMT

I tried use the original example project "ble_app_template" and try again, and I successfully get into the cb_handler and load the data successfully, I think it might just because I modified the schedluer or something else in my project to cause the problem. Thank you very much!

RE: pstorage store issue

kk — Thu, 14 Aug 2014 06:43:21 GMT

Thanks again. Just as what you have said, I didn't store data successfully once because I never get into the example_cb_handler. Actually I didn't open the system_eve_handler in ble_stack_init();, does this cause the problem? But once I open it ,my code will run out of control, I really don't konw why.

RE: pstorage store issue

Nikita — Thu, 14 Aug 2014 05:56:43 GMT

pstorage_store(); funtion always returns NRF_SUCCESS, but never triggle the cb_handler, is that normal?

You need to init pstorage callback like this:

void mypstorage_init(void)
{
...
            p_example_param.cb          = example_cb_handler;
    pstorage_init();
...

void example_cb_handler(pstorage_handle_t *  p_handle,
                              uint8_t              op_code,
                              uint32_t             result,
                              uint8_t *            p_data,
                              uint32_t             data_len)
{
        ;
}

by the way, i just sucessfully store the data once and never success again.(the loaded data is 0xff)

You are doing it wrong, if you do it like this:

pstorage_store(&p_block_id,flash2,size,offset);
pstorage_load(myflash2,&p_block_id,size,offset);

Then when you call pstorage_store you just send request to store your data to pstorage and when this function will return with NRF_SUCCESS your data won't be stored in flash yet. It will be stored after a while and then pstorage will report this in callback example_cb_handler. And only after this you can try to load this stored data.

Read this.

UPD:

What do you mean by running out of control?

For the proper pstorage functioning you need to set sys events handler like this:

static void sys_evt_dispatch(uint32_t sys_evt)
{
    pstorage_sys_event_handler(sys_evt);
}

static void ble_stack_init(void)
{
...
    // Register with the SoftDevice handler module for SYS events.
    err_code = softdevice_sys_evt_handler_set(sys_evt_dispatch);
    APP_ERROR_CHECK(err_code);
}