Index: yc_bt.h
===================================================================
--- /YC3121_SDK/fw/sdk/yc_bt.h	(revision 644)
+++ /YC3121_SDK/fw/sdk/yc_bt.h	(working copy)
@@ -60,24 +60,24 @@
 
 
 /*CMD*/
-#define HCI_CMD_SET_BT_ADDR               0x00
-#define HCI_CMD_SET_BLE_ADDR              0x01 
-#define HCI_CMD_SET_VISIBILITY            0x02
-#define HCI_CMD_SET_BT_NAME               0x03 
-#define HCI_CMD_SET_BLE_NAME              0x04 
-#define HCI_CMD_SEND_SPP_DATA             0x05 
-#define HCI_CMD_SEND_BLE_DATA             0x09 
-#define HCI_CMD_STATUS_REQUEST            0x0B 
-#define HCI_CMD_SET_PAIRING_MODE          0x0C 
-#define HCI_CMD_SET_PINCODE               0x0D 
-#define HCI_CMD_VERSION_REQUEST           0x10 
-#define HCI_CMD_BT_DISCONNECT             0x11 
-#define HCI_CMD_BLE_DISCONNECT            0x12 
-#define HCI_CMD_SET_NVRAM                 0x26 
-#define HCI_CMD_ENTER_SLEEP_MODE          0x27
-#define HCI_CMD_CONFIRM_GKEY              0x28 
+#define HCI_CMD_SET_BT_ADDR               0x00  //设置 BT3.0 地址
+#define HCI_CMD_SET_BLE_ADDR              0x01  //设置 BLE 地址
+#define HCI_CMD_SET_VISIBILITY            0x02  //设置可发现和广播
+#define HCI_CMD_SET_BT_NAME               0x03  //设置 BT3.0 名称
+#define HCI_CMD_SET_BLE_NAME              0x04  //设置 BLE 名称
+#define HCI_CMD_SEND_SPP_DATA             0x05  //发送 BT3.0（SPP）数据
+#define HCI_CMD_SEND_BLE_DATA             0x09  //发送 BLE 数据
+#define HCI_CMD_STATUS_REQUEST            0x0B  //请求蓝牙状态
+#define HCI_CMD_SET_PAIRING_MODE          0x0C  //设置配对模式
+#define HCI_CMD_SET_PINCODE               0x0D  //设置配对码
+#define HCI_CMD_VERSION_REQUEST           0x10  //查询模块固件版本
+#define HCI_CMD_BT_DISCONNECT             0x11  //断开 BT3.0 连接
+#define HCI_CMD_BLE_DISCONNECT            0x12  //断开 BLE 连接
+#define HCI_CMD_SET_NVRAM                 0x26  //下发 NV 数据
+#define HCI_CMD_ENTER_SLEEP_MODE          0x27  //进入睡眠模式
+#define HCI_CMD_CONFIRM_GKEY              0x28  //Numeric Comparison 配对方式中对密钥的比较（见HCI_EVENT_GKEY注释）
 #define HCI_CMD_GET_CREADIT_GIVEN         0x29
-#define HCI_CMD_PASSKEY_ENTRY             0x30
+#define HCI_CMD_PASSKEY_ENTRY             0x30  //passkey配对方式中对密钥的比较
 #define HCI_CMD_LE_SET_PAIRING            0x33
 #define HCI_CMD_LE_SET_ADV_DATA           0x34
 #define HCI_CMD_LE_SET_SCAN_DATA          0x35
@@ -89,24 +89,24 @@
 #define	HCI_CMD_DELETE_CUSTOMIZE_SERVICE	0x76
 #define	HCI_CMD_ADD_SERVICE_UUID					0x77
 #define	HCI_CMD_ADD_CHARACTERISTIC_UUID		0x78
-#define	HCI_CMD_SET_COD										0x15
+#define	HCI_CMD_SET_COD										0x15  //设置 COD
 
 
 /*EVENT*/
-#define HCI_EVENT_BT_CONNECTED            0x00
-#define HCI_EVENT_BLE_CONNECTED           0x02
-#define HCI_EVENT_BT_DISCONNECTED         0x03
-#define HCI_EVENT_BLE_DISCONNECTED        0x05
-#define HCI_EVENT_CMD_COMPLETE            0x06
-#define HCI_EVENT_SPP_DATA_RECEIVED       0x07
-#define HCI_EVENT_BLE_DATA_RECEIVED       0x08
-#define HCI_EVENT_I_AM_READY              0x09
-#define HCI_EVENT_STAUS_RESPONSE          0x0A
-#define HCI_EVENT_NVRAM_CHANGED           0x0D
-#define HCI_EVENT_GKEY                    0x0E
+#define HCI_EVENT_BT_CONNECTED            0x00  /**BT3.0 连接建立*/
+#define HCI_EVENT_BLE_CONNECTED           0x02  /**BLE 连接建立*/
+#define HCI_EVENT_BT_DISCONNECTED         0x03  /**BT3.0 连接断开*/
+#define HCI_EVENT_BLE_DISCONNECTED        0x05  /**BLE 连接断开*/
+#define HCI_EVENT_CMD_COMPLETE            0x06  /**命令已完成*/
+#define HCI_EVENT_SPP_DATA_RECEIVED       0x07  /**接收到 BT3.0 数据（SPP）*/
+#define HCI_EVENT_BLE_DATA_RECEIVED       0x08  /**接收到 BLE 数据*/
+#define HCI_EVENT_I_AM_READY              0x09  /**模块准备好*/
+#define HCI_EVENT_STAUS_RESPONSE          0x0A  /**状态回复*/
+#define HCI_EVENT_NVRAM_CHANGED           0x0D  /**上传 NVRAM 数据*/
+#define HCI_EVENT_GKEY                    0x0E  /**HCI 包格式错误*/
 #define HCI_EVENT_UART_EXCEPTION          0x0F  /*cmd format error*/
-#define HCI_EVENT_GET_PASSKEY             0x10
-#define HCI_EVENT_PAIRING_COMPLETED       0x11
+#define HCI_EVENT_GET_PASSKEY             0x10  /**PASSKEY 配对方式中通知MCU 返回密钥,MCU收到此事件后需发送HCI_CMD_PASSKEY_ENTRY指令回复蓝牙模块*/
+#define HCI_EVENT_PAIRING_COMPLETED       0x11  /**配对完成的事件，通知 MCU配对完成*/
 #define	HCI_EVENT_UUID_HANDLE							0x29
 
 /** 
@@ -428,7 +428,7 @@
 /**
   * @brief  add ble custom Service
   * @param  ble_service_uuid:
-	*														byte0�� uuid length(2 or 16)
+	*														byte0�� uuid length(2 or 16)
 	*														byte1-2(16): uuid
 	*					service_uuid_len: sizeof(ble_service_uuid)
   * @retval TRUE:success.