PM0237 datasheet(60/88 Pages) STMICROELECTRONICS

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Design an application using BlueNRG, BlueNRG-MS ACI APIs

PM0237

60/88

DocID027104 Rev 2

/* Start the general discovery procedure (active scan) using the

following

parameters:

Scan_Interval: 0x4000;

Scan_Window: 0x4000;

Own_address_type: 0x00 (public device address);

filterDuplicates: 0x00 (duplicate filtering disabled);

ret = aci_gap_start_general_discovery_proc(0x4000, 0x4000,0x00,0x00);

if (ret != BLE_STATUS_SUCCESS) PRINTF("Failure.\n")}

}

The responses of the procedure are given through the EVT_BLUE_GAP_DEVICE_FOUND

(BlueNRG) and EVT_LE_ADVERTISING_REPORT (BlueNRG-MS) events raised on

HCI_Event_CB()

callback (EVT_VENDOR as main event) . The end of the procedure is

indicated by EVT_BLUE_GAP_PROCEDURE_COMPLETE event on the HCI_Event_CB() callback

(EVT_VENDOR as main event):

void HCI_Event_CB(void *pckt)

{

hci_uart_pckt *hci_pckt = pckt;

hci_event_pckt *event_pckt = (hci_event_pckt*)hci_pckt->data;

if(hci_pckt->type != HCI_EVENT_PKT return;

switch(event_pckt->evt){

case EVT_VENDOR:

{

/* Get the vendor event data */

evt_blue_aci *blue_evt = (void*)event_pckt->data;

switch(blue_evt->ecode){

case EVT_BLUE_GAP_DEVICE_FOUND:

{

evt_gap_device_found *pr = (void*)blue_evt->data;

/* evt_gap_device_found parameters:

pr->evt_type: event type (advertising packets types);

pr->bdaddr_type: type of the peer address (PUBLIC_ADDR,RANDOM_ADDR);

pr->bdaddr: address of the peer device found during scanning;

pr->length: length of advertising or scan response data;

pr->data_RSSI[]:

length advertising or scan response data + RSSI.

RSSI is last octect (signed integer).

/* Add user code for decoding the evt_gap_device_found event data based on

the specific pr->evt_type

(ADV_IND, SCAN_RSP, ..)*/

………

}/* EVT_BLUE_GAP_DEVICE_FOUND */

break;

case EVT_BLUE_GAP_PROCEDURE_COMPLETE:

{

/* When the general discovery procedure is terminated

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