diff --git a/Core/Src/freertos.c b/Core/Src/freertos.c
index 9d6287d..35b83a5 100644
--- a/Core/Src/freertos.c
+++ b/Core/Src/freertos.c
@@ -196,7 +196,7 @@ void start_gpio_di_do_task(void const *argument)
         send_data_flag_cmd = 0;
       }
     }
-    vTaskDelay(200);
+    vTaskDelay(100);
   }
   /* USER CODE END start_gpio_di_do_task */
 }
diff --git a/MDK-ARM/remote_dido_unit.uvprojx b/MDK-ARM/remote_dido_unit.uvprojx
index 5b2a092..7a1875f 100644
--- a/MDK-ARM/remote_dido_unit.uvprojx
+++ b/MDK-ARM/remote_dido_unit.uvprojx
@@ -16,8 +16,8 @@
         <TargetCommonOption>
           <Device>STM32F407VGTx</Device>
           <Vendor>STMicroelectronics</Vendor>
-          <PackID>Keil.STM32F4xx_DFP.2.17.1</PackID>
-          <PackURL>https://www.keil.com/pack/</PackURL>
+          <PackID>Keil.STM32F4xx_DFP.2.16.0</PackID>
+          <PackURL>http://www.keil.com/pack/</PackURL>
           <Cpu>IRAM(0x20000000-0x2001BFFF) IRAM2(0x2001C000-0x2001FFFF) IROM(0x8000000-0x80FFFFF)  CLOCK(25000000) FPU2 CPUTYPE("Cortex-M4") TZ</Cpu>
           <FlashUtilSpec></FlashUtilSpec>
           <StartupFile></StartupFile>
@@ -186,6 +186,7 @@
             <RvdsVP>2</RvdsVP>
             <RvdsMve>0</RvdsMve>
             <RvdsCdeCp>0</RvdsCdeCp>
+            <nBranchProt>0</nBranchProt>
             <hadIRAM2>1</hadIRAM2>
             <hadIROM2>0</hadIROM2>
             <StupSel>8</StupSel>
diff --git a/User/application/src/tcpserverc.c b/User/application/src/tcpserverc.c
index 72b31d8..c010339 100644
--- a/User/application/src/tcpserverc.c
+++ b/User/application/src/tcpserverc.c
@@ -88,9 +88,8 @@ static err_t tcpecho_recv_control(void *arg, struct tcp_pcb *tpcb, struct pbuf *
 
             /*2. 判断所要执行的操作 读或写指令*/
             /*3. 对要发送的数据进行校验，组包，返回数据*/
-
-            pbuf_free(p);
         }
+        pbuf_free(p);
     }
     else if (err == ERR_OK) // 检测到对方主动关闭连接时，也会调用recv函数，此时p为空
     {