Hi,
My setup:
* nRF52 DK
* nRF5_SDK_15.0.0_a53641a
* s132_nrf52_6.0.0
* SES V3.34b 64-bit.
I am struggling to properly use FDS module. I am using multiperipheral example, just for a training I would like to make something like this:
* write data to flash after button being pressed
* read data from flash after getting disconnected from a device.
I have followed lib_fds_usage and my code looks like this:
main.c
globals:
static fds_record_desc_t record_desc;
function definitions:
static void button_event_handler(uint8_t pin_no, uint8_t button_action)
{
ret_code_t err_code;
switch (pin_no)
{
case LEDBUTTON_BUTTON:
err_code = led_status_send_to_all(button_action);
if (err_code == NRF_SUCCESS)
{
NRF_LOG_INFO("Sent button state change to all connected centrals.");
/* ---- */
uint32_t const m_deadbeef = 0xDEADBEEF;
static char const m_hello[] = "Hello, world!";
fds_record_t record;
record.file_id = 0x0003;
record.key = 0x3111;
record.data.p_data = &m_deadbeef;
record.data.length_words = 1; // jedno slowo to 4 bajty
ret_code_t rc;
rc = fds_record_write(&record_desc, &record);
if(rc != FDS_SUCCESS)
{
NRF_LOG_INFO("write error");
}
/* ---- */ //[pawel]
}
break;
default:
APP_ERROR_HANDLER(pin_no);
break;
}
}
static void on_disconnected(ble_gap_evt_t const * const p_gap_evt)
{
ret_code_t err_code;
uint32_t periph_link_cnt = ble_conn_state_peripheral_conn_count(); // Number of peripheral links.
NRF_LOG_INFO("Connection 0x%x has been disconnected. Reason: 0x%X",
p_gap_evt->conn_handle,
p_gap_evt->params.disconnected.reason);
if (periph_link_cnt == 0)
{
bsp_board_led_off(CONNECTED_LED);
err_code = app_button_disable();
APP_ERROR_CHECK(err_code);
}
if (periph_link_cnt == (NRF_SDH_BLE_PERIPHERAL_LINK_COUNT - 1))
{
// Advertising is not running when all connections are taken, and must therefore be started.
advertising_start();
}
/* -------- */
fds_flash_record_t flash_record;
// fds_record_desc_t record_desc;
fds_find_token_t ftok;
//uint32_t *content;
uint32_t *content = (uint32_t *) malloc (sizeof(uint32_t));
uint8_t iter = 0;
/* It is required to zero the token before first use. */
memset(&ftok, 0x00, sizeof(fds_find_token_t));
/* Loop until all records with the given key and file ID have been found. */
while (fds_record_find(0x0003, 0x3111, &record_desc, &ftok) == FDS_SUCCESS)
{
iter++;
if (fds_record_open(&record_desc, &flash_record) != FDS_SUCCESS)
{
/* Handle error. */
NRF_LOG_INFO("error opening");
}
/* Access the record through the flash_record structure. */
content = (uint32_t *)(flash_record.p_data);
//memcpy(zawartosc, flash_record.p_data, sizeof(uint32_t*));
/* Close the record when done. */
if (fds_record_close(&record_desc) != FDS_SUCCESS)
{
/* Handle error. */
NRF_LOG_INFO("error closing");
}
}
NRF_LOG_INFO("content %d %x" , iter, *(content));
/* --------- */
}
I get no errors, my terminal log looks like this:
<info> app: Multiperipheral example started.
<info> app: Connection with link 0x0 established.
<info> app: Sent button state change to all connected centrals.
<info> app: Sent button state change to all connected centrals.
<info> app: Connection 0x0 has been disconnected. Reason: 0x13
<info> app: content 26 2000FEB8
Why is it 0x2000FEB8 instead of 0xDEADBEEF? Where do I make a mistake?
