您好 Clement、
下面、我将在代码中附加 GAP 角色参数配置
我想知道调整这些参数可能有助于解决该问题吗？
在 GAPROLE_Advertise_OFF_TIME 期间关闭广播时、我们是否在外设侧得到任何指示？ (以便在此期间开始扫描)
最棒的
瓦伦
您好 Clement、
是的、我认为我们在同一页上。 感谢您的回复。 为了避免对讲机重叠、我希望在建立连接时禁用扫描。 但现在、我只能在建立连接并且连接没有问题之前禁用扫描。 但现在的问题是、扫描仅在建立连接后才开始。 但我们希望在后台进行扫描。 我要执行的操作与下图类似(在建立连接期间禁用、以红色表示)
因此、我使用以下事件在设备广播时取消扫描。 并在它不是时启动。 但不幸的是 、我再次遇到连接问题。
case GAP_MAKE_DISCOVERABLE_DONE_EVENT:
case GAP_END_DISCOVERABLE_DONE_EVENT:
{
gapMakeDiscoverableRspEvent_t *pPkt = (gapMakeDiscoverableRspEvent_t *)pMsg;
if ( pPkt->hdr.status == SUCCESS )
{
if ( pMsg->opcode == GAP_MAKE_DISCOVERABLE_DONE_EVENT )
{
gapRole_state = GAPROLE_ADVERTISING;
GAPObserverRole_CancelDiscovery();
}
else // GAP_END_DISCOVERABLE_DONE_EVENT
{
if ( gapRole_AdvertOffTime != 0 )
{
if ( ( gapRole_AdvEnabled ) )
{
GAPObserverRole_StartDiscovery( DEFAULT_DISCOVERY_MODE,DEFAULT_DISCOVERY_ACTIVE_SCAN,DEFAULT_DISCOVERY_WHITE_LIST );
VOID osal_start_timerEx( gapRole_TaskID, START_ADVERTISING_EVT, gapRole_AdvertOffTime );
}
}
else
{
// Since gapRole_AdvertOffTime is set to 0, the device should not
// automatically become discoverable again after a period of time.
// Set enabler to FALSE; device will become discoverable again when
// this value gets set to TRUE
gapRole_AdvEnabled = FALSE;
}
// In the Advertising Off period
gapRole_state = GAPROLE_WAITING;
}
}
else
{
gapRole_state = GAPROLE_ERROR;
}
notify = TRUE;
}
break;
uint16 scanduration = 1000U;
uint16 advertOffTime = 5000U;
uint16 advertisingduration = 5000;
uint8 enable_update_request = FALSE;//TRUE;
uint16 desired_min_interval = 20U;
uint16 desired_max_interval = 20U;
uint16 desired_slave_latency = 0U;
uint16 desired_conn_timeout = 1000U;
uint16 rssi_read_rate = 500U;
uint8 initial_advertising_enable = TRUE;
// Set the GAP Role Parameters
GAPRole_SetParameter( GAPROLE_ADVERT_ENABLED, sizeof( uint8 ), &initial_advertising_enable );
GAPRole_SetParameter( GAPROLE_ADVERT_OFF_TIME, sizeof( uint16 ), &advertOffTime );
GAPRole_SetParameter( GAPROLE_SCAN_RSP_DATA, scanResponseLength, scanRspData );
GAPRole_SetParameter( GAPROLE_ADVERT_DATA, sizeof( advertData ), advertData );
GAPRole_SetParameter( GAPROLE_PARAM_UPDATE_ENABLE, sizeof( uint8 ), &enable_update_request );
GAPRole_SetParameter( GAPROLE_MIN_CONN_INTERVAL, sizeof( uint16 ), &desired_min_interval );
GAPRole_SetParameter( GAPROLE_MAX_CONN_INTERVAL, sizeof( uint16 ), &desired_max_interval );
GAPRole_SetParameter( GAPROLE_SLAVE_LATENCY, sizeof( uint16 ), &desired_slave_latency );
GAPRole_SetParameter( GAPROLE_TIMEOUT_MULTIPLIER, sizeof( uint16 ), &desired_conn_timeout );
GAPRole_SetParameter( GAPROLE_RSSI_READ_RATE, sizeof( uint16 ), &rssi_read_rate );
//GAPRole_SetParameter( TGAP_LIM_DISC_SCAN, sizeof( uint16 ), &scanduration );
//GAPRole_SetParameter( TGAP_GEN_DISC_ADV_MIN, sizeof( uint16 ), &advertisingduration );
// Set the GAP Characteristics
GGS_SetParameter( GGS_DEVICE_NAME_ATT, GAP_DEVICE_NAME_LEN, attDeviceName );
GAP_SetParamValue( TGAP_GEN_DISC_ADV_MIN, advertisingduration );
// Set up the advertising interval
static const uint16 advInt = 300U; //500 before
GAP_SetParamValue( TGAP_LIM_DISC_ADV_INT_MIN, advInt );
GAP_SetParamValue( TGAP_LIM_DISC_ADV_INT_MAX, advInt );
GAP_SetParamValue( TGAP_GEN_DISC_ADV_INT_MIN, advInt );
GAP_SetParamValue( TGAP_GEN_DISC_ADV_INT_MAX, advInt );
// Initialise the observer
{
uint8 scanRes = 60;
GAPRole_SetParameter ( GAPOBSERVERROLE_MAX_SCAN_RES, sizeof( uint8 ), &scanRes );
}
// Setuo Scanning interval
GAP_SetParamValue( TGAP_LIM_DISC_SCAN, scanduration );
GAP_SetParamValue( TGAP_LIM_DISC_SCAN_INT, 160 ); //Interval between the start of two consecutive scan windows
GAP_SetParamValue( TGAP_LIM_DISC_SCAN_WIND, 128 ); // The duration in which the Link Layer scans on one channel
