Hello everyone!
I have succesfully connected my p2pRouter (it is a STM32WB5x) to a p2pServer (always STM32WB5x). On the Server there is an IMU and I want to send data from server to router via bluetooth.
If I connect my phone to the server with STBLESensorAPP and select accelerometer feature it works and I can see accelerometer data on my phone. But it doesn't happen the same when I do this with router.
Specifically, on server side, accelerometer data are stored in a service called My_P2PServer using the following functions:
ret = aci_gatt_add_service(UUID_TYPE_128,
(Service_UUID_t *) &uuid,
PRIMARY_SERVICE,
16,
&(CustomContext.CustomMy_P2PsHdle));
ret = aci_gatt_add_char(CustomContext.CustomMy_P2PsHdle,
UUID_TYPE_128, &uuid,
SizeAccel,
CHAR_PROP_NOTIFY,
ATTR_PERMISSION_NONE,
GATT_NOTIFY_ATTRIBUTE_WRITE,
0x10,
CHAR_VALUE_LEN_VARIABLE,
&(CustomContext.CustomAccelHdle));
And accelerometer data are updated like this:
ret = aci_gatt_update_char_value(CustomContext.CustomMy_P2PsHdle,
CustomContext.CustomAccelHdle,
0, /* charValOffset */
SizeAccel, /* charValueLen */
(uint8_t *) pPayload);
Finally, when the phone connects to the server, the server enters this function:
static SVCCTL_EvtAckStatus_t Custom_STM_Event_Handler(void *Event)
{
SVCCTL_EvtAckStatus_t return_value;
hci_event_pckt *event_pckt;
evt_blecore_aci *blecore_evt;
aci_gatt_attribute_modified_event_rp0 *attribute_modified;
Custom_STM_App_Notification_evt_t Notification;
return_value = SVCCTL_EvtNotAck;
event_pckt = (hci_event_pckt *)(((hci_uart_pckt*)Event)->data);
switch (event_pckt->evt)
{
case HCI_VENDOR_SPECIFIC_DEBUG_EVT_CODE:
blecore_evt = (evt_blecore_aci*)event_pckt->data;
switch (blecore_evt->ecode)
{
case ACI_GATT_ATTRIBUTE_MODIFIED_VSEVT_CODE:
attribute_modified = (aci_gatt_attribute_modified_event_rp0*)blecore_evt->data;
else if (attribute_modified->Attr_Handle == (CustomContext.CustomAccelHdle + CHARACTERISTIC_DESCRIPTOR_ATTRIBUTE_OFFSET))
{
return_value = SVCCTL_EvtAckFlowEnable;
switch (attribute_modified->Attr_Data[0])
{
/* Disabled Notification management */
case (!(COMSVC_Notification)):
Notification.Custom_Evt_Opcode = CUSTOM_STM_ACCEL_NOTIFY_DISABLED_EVT;
Custom_STM_App_Notification(&Notification);
break;
/* Enabled Notification management */
case COMSVC_Notification:
Notification.Custom_Evt_Opcode = CUSTOM_STM_ACCEL_NOTIFY_ENABLED_EVT;
Custom_STM_App_Notification(&Notification);
break;
default:
break;
}
}
to switch on the flag to enable the server to send notifications to the router.
I tried to enable the flag mentioned above calling the following function on router after the devices' connection:
aci_gatt_write_char_desc(BleApplicationContext.connectionHandleEndDevice1,
27,
2,
(uint8_t *)&enable);
Where 27 is the attribute handle of accelerometer characteristic that I foud debugging server side and enable=1.
Can someone help me?
