diff --git a/code/application/source/sf_app/code/source/systemMng/sf_commu_mcu.c b/code/application/source/sf_app/code/source/systemMng/sf_commu_mcu.c
index bba817877..2e4e8c88b 100755
--- a/code/application/source/sf_app/code/source/systemMng/sf_commu_mcu.c
+++ b/code/application/source/sf_app/code/source/systemMng/sf_commu_mcu.c
@@ -1197,10 +1197,11 @@ static void * sf_commu_mcu_task(void * argv)
 					}
 					else 
 					{
+                        mcubuf_reset();
 						memcpy(mcu_buf, &buffer[start], copy_size);
 						mcu_buf_len = copy_size;
 						sf_commu_parse_mcu_data(mcu_buf, mcu_buf_len);
-						mcubuf_reset();
+						
 					}
 					start = -1;
 					end = -1;
@@ -1326,7 +1327,8 @@ int sf_commu_set_mcu_many(unsigned char reg[], unsigned char val[], unsigned int
     int ret = -1;
     int retries = 0; // 重试次数
 	unsigned int i = 0;
-
+	unsigned char	tmpreg[3] = {0};
+	unsigned char	tmpval[3] = {0};
     if (gsfd == -1)
         sf_commu_mcu_open();
 
@@ -1351,7 +1353,12 @@ int sf_commu_set_mcu_many(unsigned char reg[], unsigned char val[], unsigned int
                 printf("%s:%d error\r\n", __FUNCTION__, __LINE__);
                 ret	= -1;
                 retries++; // 错误时增加重试次数
-
+                ret = sf_getRegFromMcu_depack(mcu_buf, mcu_buf_len, &tmpreg[0], &tmpval[0]);
+                if (ret > 0)
+                {
+                    MLOGD("MCU send 0x05, reg_value[%d,%d]\n\n",tmpreg[0], tmpval[0]);
+                    sf_getRegFromMcu_ack(tmpreg[0], tmpval[0]);
+                }
             }
             else 
             {
diff --git a/code/application/source/sf_app/code/source/systemMng/sf_commu_mcu_reg.c b/code/application/source/sf_app/code/source/systemMng/sf_commu_mcu_reg.c
index 7690d8305..d75194d76 100755
--- a/code/application/source/sf_app/code/source/systemMng/sf_commu_mcu_reg.c
+++ b/code/application/source/sf_app/code/source/systemMng/sf_commu_mcu_reg.c
@@ -97,14 +97,19 @@ UINT8 sf_mcu_write_multi(UINT8 reg[], UINT8 data[], UINT32 num)
 {
     UINT32 i;
     unsigned int pnum = num;
+    for(i = 0; i < num; i++)
+    {
+        printf("W_addr[%d]=0x%02x\n", reg[i], data[i]);
+    }
 	if(0 <= sf_commu_set_mcu_many(reg, data, &pnum))
 	{
-        for(i = 0; i < num; i++)
-    	{
-            printf("W_addr[%d]=0x%02x\n", reg[i], data[i]);
-    	}
+        // for(i = 0; i < num; i++)
+    	// {
+        //     printf("W_addr[%d]=0x%02x\n", reg[i], data[i]);
+    	// }
         return SUCCESS;
     }
+    printf("%s:%d FAIL write err\n", __FUNCTION__, __LINE__);
 	return FAIL;
 }