I want to create a whitelist on the Central device. Because there is a lot of peripheral devices around and I just want to connect one peripheral device. First I register the address of the central device to the peripheral device. When I work with a single peripheral device and a single central device, I can send commands from the central device to the peripheral device. But when I have more than one peripheral device in the vicinity, I can not send commands to the peripheral device registered from the central device. So I decided to create whitelist on the central device to connect the peripheral device which I registered before. But I don't know how. Do you have any example? (except ble_app_hrs)
Function to start scanning code;
// Function to start scanning
void scan_start(void) {
ble_gap_whitelist_t whitelist;
ble_gap_addr_t * p_whitelist_addr[BLE_GAP_WHITELIST_ADDR_MAX_COUNT];
ble_gap_irk_t * p_whitelist_irk[BLE_GAP_WHITELIST_IRK_MAX_COUNT];
uint32_t err_code;
uint32_t count;
err_code = pstorage_access_status_get(&count);
APP_ERROR_CHECK(err_code);
if (count != 0)
{
m_memory_access_in_progress = true;
return;
}
// Initialize whitelist parameters.
whitelist.addr_count = BLE_GAP_WHITELIST_ADDR_MAX_COUNT;
whitelist.irk_count = 0;
whitelist.pp_addrs = p_whitelist_addr;
whitelist.pp_irks = p_whitelist_irk;
// Request creating of whitelist.
err_code = dm_whitelist_create(&m_dm_app_id,&whitelist);
APP_ERROR_CHECK(err_code);
if (((whitelist.addr_count == 0) && (whitelist.irk_count == 0)) ||
(m_scan_mode != BLE_WHITELIST_SCAN) ||
(m_whitelist_temporarily_disabled))
{
APPL_LOG("THERE IS NO WHITELIST\r\n"); //Debug Note
// No devices in whitelist, hence non selective performed.
m_scan_param.active = SCAN_ACTIVE; // Active scanning set.
m_scan_param.selective = SCAN_SELECTIVE; // Selective scanning not set.
m_scan_param.interval = SCAN_INTERVAL; // Scan interval.
m_scan_param.window = SCAN_WINDOW; // Scan window.
m_scan_param.p_whitelist = NULL; // No whitelist provided.
m_scan_param.timeout = 0x0000; // No timeout.
}
else
{
APPL_LOG("WHITELIST WAS FOUND\r\n"); //Debug Note
// Selective scanning based on whitelist first.
m_scan_param.active = 1; // Active scanning set.
m_scan_param.selective = 1; // Selective scanning not set.
m_scan_param.interval = SCAN_INTERVAL;// Scan interval.
m_scan_param.window = SCAN_WINDOW; // Scan window.
m_scan_param.p_whitelist = &whitelist; // Provide whitelist.
m_scan_param.timeout = 0x001E; // 30 seconds timeout.
m_scan_mode = BLE_WHITELIST_SCAN;
}
err_code = sd_ble_gap_scan_start(&m_scan_param);
APP_ERROR_CHECK(err_code);
}
