Hello.
I am reading this manual infocenter.nordicsemi.com/index.jsp
and trying to compile but there is an error durring linkage phase,
Linkage nrf_init:
undefined symbol ble_conn_params_init
so my guess is that I need some binary file to pass this to linker because this is not compilation error meaning headers are fine but I'm missing library function. So my question is what should I do?
Here is the code:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "ble_conn_params.h"
#define FIRST_CONN_PARAMS_UPDATE_DELAY 5000 // 5 seconds delay before negotiation is initiated.
#define NEXT_CONN_PARAMS_UPDATE_DELAY 30000 // 30 seconds delay for subsequent request to be sent in case parameters are not updated as requested.
#define MAX_CONN_PARAMS_UPDATE_COUNT 3 // Number of times negotiation is attempted.
#define MIN_CONN_INTERVAL MSEC_TO_UNITS(7.5, UNIT_1_25_MS) // Minimum connection interval (7.5 ms).
#define MAX_CONN_INTERVAL MSEC_TO_UNITS(30, UNIT_1_25_MS) // Maximum connection interval (30 ms).
#define SLAVE_LATENCY 6 // Slave latency.
#define CONN_SUP_TIMEOUT MSEC_TO_UNITS(300, UNIT_10_MS) // Connection supervisory timeout (300 ms).
/*********************************************************************
*
* main()
*
* Function description
* Application entry point.
*/
int main(void)
{
ble_conn_params_init_t conn_param_init;
ble_gap_conn_params_t preferred_conn_param;
ret_code_t retval;
memset(&conn_param_init, 0, sizeof(ble_conn_params_init_t));
// Connection parameters preferred by the application.
preferred_conn_param.min_conn_interval = MIN_CONN_INTERVAL;
preferred_conn_param.max_conn_interval = MAX_CONN_INTERVAL;
preferred_conn_param.slave_latency = SLAVE_LATENCY;
preferred_conn_param.conn_sup_timeout = CONN_SUP_TIMEOUT;
conn_param_init.p_conn_params = &preferred_conn_param;
conn_param_init.first_conn_params_update_delay = FIRST_CONN_PARAMS_UPDATE_DELAY;
conn_param_init.next_conn_params_update_delay = NEXT_CONN_PARAMS_UPDATE_DELAY;
conn_param_init.max_conn_params_update_count = MAX_CONN_PARAMS_UPDATE_COUNT;
conn_param_init.start_on_notify_cccd_handle = BLE_GATT_HANDLE_INVALID;
conn_param_init.disconnect_on_fail = false;
conn_param_init.evt_handler = NULL;
conn_param_init.error_handler = NULL;
// Initialize and set up connection parameter negotiation module.
retval = ble_conn_params_init(&conn_param_init);
if(retval == NRF_SUCCESS)
{
// Procedure request succeeded. Connection parameters will be negotiated as requested.
// BLE_CONN_PARAMS_EVT_SUCCEEDED or BLE_CONN_PARAMS_EVT_FAILED
// will be notified if parameter negotiation is successful or not.
}
else
{
// Procedure request failed.
}
return 0;
}
I think I get it, there is no such thing like binary file of the library, everything I need from this libary I should compile manually. Am I right?
Best regards.
