1.2.2.1.2.4.1 GATTC_DiscoverAllCharacteristics

uint16_t GATTC_DiscoverAllCharacteristics(uint16_t connHandle, uint16_t startHandle, uint16_t endHandle);

GATT Client starts discovery of all characteristics within the given handle range when this API is called.

Following events may be generated:

• Event GATTC_EVT_DISC_CHAR_RESP with procedureStatus in GATT_EvtDiscCharResp_T set to continue. This indicates characteristic declarations are found but the discovery is not yet complete (more declarations may be present). See p_attrData in GATT_EvtDiscCharResp_T for extracting the characteristic details.

• Event GATTC_EVT_DISC_CHAR_RESP with procedureStatus in GATT_EvtDiscCharResp_T set to Finish. This indicates termination of the procedure (Value handle of last found characteristic declaration is equal to end handle of input handle range)

• Event GATTC_EVT_ERROR_RESP with error code ATT_ERRCODE_ATTRIBUTE_NOT_FOUND is generated. This indicates termination of the procedure. (Last found Value handle is not same as end handle of the input handle range or no characteristic declaration found)

GATTC_EVT_ERROR_RESP Generated when characteristics not found or discovery procedure is end.

GATTC_EVT_DISC_CHAR_RESP Generated when characteristics discovered from remote.

ATT_EVT_TIMEOUT Generated when server does not respond the request.