Flash memory utilization

[Sébastien Despont]

Dear Nordic Support Team,

I am trying to write some information in the flash memory without success. In the ble_flash.h file, it is specified that the pages 0-127 are reserved to the soft device. So, I can use the next page to store my data, am I right?

Can you tell me why the following code crash ?

uint32_t page = 128;

uint8_t word_count = 1;
uint32_t data_array[2]={0};

err_code = ble_flash_page_write(page,(uint32_t *) &data_array,1);
APP_ERROR_CHECK(err_code);
														
err_code = ble_flash_page_read(page, (uint32_t *) & data_array, &word_count);
APP_ERROR_CHECK(err_code);

[Sébastien Despont]

Thanks for your answer.

I have tried this code as you suggest, but it still doesn't work. I don't get any error number, the code just crash and I don't understand why.

Could you have a look on my codebelow? I didn't find any example which explain how to use the flash memory in the SDK.

Best regards

uint32_t page = NRF_FICR->CODESIZE - 4;

uint8_t word_count = 1;
uint32_t data_array[2]={0};

err_code = ble_flash_page_write(page,(uint32_t *) &data_array,1);
APP_ERROR_CHECK(err_code);
														
err_code = ble_flash_page_read(page, (uint32_t *) & data_array, &word_count);
APP_ERROR_CHECK(err_code);

[Sébastien Despont]

Up, this code is still not working. How can I fix that?