case BLE_GAP_EVT_DISCONNECTED: { m_conn_handle = BLE_CONN_HANDLE_INVALID; break; } case BLE_GATTC_EVT_PRIM_SRVC_DISC_RSP: { ble_gattc_evt_prim_srvc_disc_rsp_t *p_response = &p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp; // Traverse all discovered services for (uint32_t i = 0; i < p_response->count; i++) { ble_uuid_t uuid = p_response->services[i].uuid; // Determine the service type based on the UUID if (ble_uuid_cmp(&uuid, &m_svc_uuid) == 0) { // Save the service handle m_svc_handle = p_response->services[i].handle_range.start_handle; } } break; } case BLE_GATTC_EVT_CHAR_DISC_RSP: { ble_gattc_evt_char_disc_rsp_t *p_response = &p_ble_evt->evt.gattc_evt.params.char_disc_rsp; // Traverse all discovered characteristics for (uint32_t i = 0; i < p_response->count; i++) { ble_uuid_t uuid = p_response->chars[i].uuid; // Determine the characteristic type based on the UUID if (ble_uuid_cmp(&uuid, &m_char_uuid) == 0) { // Save the characteristic handle m_char_handle = p_response->chars[i].handle_value; } } // Characteristic discovery completed, can perform read/write operations, etc. break; }
时间: 2024-02-14 10:23:47 浏览: 136
这段代码是关于 BLE(蓝牙低功耗)连接和服务/特征发现的处理。在第一个 case 中,处理 BLE 设备断开连接的事件。在第二个 case 中,处理主服务发现响应事件。代码通过遍历发现的服务列表,用 UUID 来确定服务类型,并保存服务句柄。在第三个 case 中,处理特征发现响应事件。代码通过遍历发现的特征列表,用 UUID 来确定特征类型,并保存特征句柄。在这个 case 结束时,特征发现已经完成,可以执行读/写等操作。
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