diff --git a/mcp_can.cpp b/mcp_can.cpp
index ca42bcd..d0a9b16 100644
--- a/mcp_can.cpp
+++ b/mcp_can.cpp
@@ -692,6 +692,24 @@ INT8U MCP_CAN::setMsg(INT32U id, INT8U ext, INT8U len, INT8U rtr, INT8U *pData)
     return MCP2515_OK;
 }
 
+
+/*********************************************************************************************************
+** Function name:           setMsg
+** Descriptions:            set can message, such as dlc, id, dta[] and so on
+*********************************************************************************************************/
+INT8U MCP_CAN::setMsg(INT32U id, INT8U ext, INT8U len, INT8U *pData)
+{
+    int i = 0;
+    m_nExtFlg = ext;
+    m_nID     = id;
+    m_nDlc    = len;
+    for(i = 0; i<MAX_CHAR_IN_MESSAGE; i++)
+    {
+        m_nDta[i] = *(pData+i);
+    }
+    return MCP2515_OK;
+}
+
 /*********************************************************************************************************
 ** Function name:           clearMsg
 ** Descriptions:            set all message to zero
@@ -754,6 +772,17 @@ INT8U MCP_CAN::sendMsgBuf(INT32U id, INT8U ext, INT8U rtr, INT8U len, INT8U *buf
     sendMsg();
 }
 
+/*********************************************************************************************************
+** Function name:           sendMsgBuf
+** Descriptions:            send buf
+*********************************************************************************************************/
+INT8U MCP_CAN::sendMsgBuf(INT32U id, INT8U ext, INT8U len, INT8U *buf)
+{
+    setMsg(id, ext, len, buf);
+    sendMsg();
+}
+
+
 /*********************************************************************************************************
 ** Function name:           readMsg
 ** Descriptions:            read message
diff --git a/mcp_can.h b/mcp_can.h
index 33acc68..3dfd6c0 100644
--- a/mcp_can.h
+++ b/mcp_can.h
@@ -90,6 +90,7 @@ private:
 */    
 
     INT8U setMsg(INT32U id, INT8U ext, INT8U len, INT8U rtr, INT8U *pData); /* set message                  */  
+    INT8U setMsg(INT32U id, INT8U ext, INT8U len, INT8U *pData); /* set message                  */  
     INT8U clearMsg();                                               /* clear all message to zero    */
     INT8U readMsg();                                                /* read message                 */
     INT8U sendMsg();                                                /* send message                 */
@@ -99,7 +100,8 @@ public:
     INT8U begin(INT8U speedset);                                    /* init can                     */
     INT8U init_Mask(INT8U num, INT8U ext, INT32U ulData);           /* init Masks                   */
     INT8U init_Filt(INT8U num, INT8U ext, INT32U ulData);           /* init filters                 */
-    INT8U sendMsgBuf(INT32U id, INT8U ext, INT8U rtr, INT8U len, INT8U *buf); /* send buf                     */
+    INT8U sendMsgBuf(INT32U id, INT8U ext, INT8U rtr, INT8U len, INT8U *buf);   /* send buf                     */
+    INT8U sendMsgBuf(INT32U id, INT8U ext, INT8U len, INT8U *buf);   /* send buf                     */
     INT8U readMsgBuf(INT8U *len, INT8U *buf);                       /* read buf                     */
     INT8U readMsgBufID(INT32U *ID, INT8U *len, INT8U *buf);         /* read buf with object ID      */
     INT8U checkReceive(void);                                       /* if something received        */