diff --git a/Bsp/Inc/Bsp.h b/Bsp/Inc/Bsp.h
index 13d7714..7706cd5 100644
--- a/Bsp/Inc/Bsp.h
+++ b/Bsp/Inc/Bsp.h
@@ -1,8 +1,6 @@
 #ifndef __BSP_H__
 #define __BSP_H__
 
-/* Voilet Bsp */
-#include "VoiletPort.h"
 /* Board */
 #include "Board.h"
 
diff --git a/Bsp/Inc/VoiletPort.h b/Bsp/Inc/VoiletPort.h
index 9651097..b657848 100644
--- a/Bsp/Inc/VoiletPort.h
+++ b/Bsp/Inc/VoiletPort.h
@@ -16,7 +16,23 @@
 typedef enum {
     false = 0,
     true  = 1,
-} bool_t;
+} BOOL_MAP_T;
+
+/* DI数字信号采集枚举 */
+enum {
+    DI_OFF = 0,
+    DI_ON
+};
+/* DO数字信号输出枚举 */
+enum {
+    DO_OFF = 0,
+    DO_ON
+};
+/* LED灯输出枚举 */
+enum {
+    LED_OFF = 0,
+    LED_ON
+};
 
 /* Interrupt Irq */
 typedef struct {
@@ -181,6 +197,8 @@ typedef struct {
 #define GPIO111 {RCC_APB2PeriphClockCmd, RCC_APB2Periph_GPIOG, {GPIOG, GPIO_Pin_15}}
 #endif
 
+// #define GPIO_NULL ((COM_CONFIG){0, 0, {0, 0}})
+
 /* COM */
 typedef struct {
     USART_TypeDef *UartId;
@@ -191,15 +209,19 @@ typedef struct {
     void (*ClockCmd)(uint32_t RccPeriph, FunctionalState State);
     unsigned int ClockTree;
     COM_PERIPH_T Periph;
+    // GPIO_MAP_T TxRxEn;              //收发使能
 } COM_MAP_T;
 
 typedef struct {
-    COM_MAP_T *ComX;
-    GPIO_MAP_T TxPort;
-    GPIO_MAP_T RxPort;
-    GPIOSpeed_TypeDef Speed;
+    COM_MAP_T *ComX;                //串口外设
+    GPIO_MAP_T TxPort;              //发送端口
+    GPIO_MAP_T RxPort;              //接收端口
+    unsigned char Rs485;            //是否是Rs485
+    GPIO_MAP_T TxRxEn;              //收发使能
+    GPIOSpeed_TypeDef Speed;        //IO口速度
 }COM_CONFIG;
 
+#define COM_NUM 5
 #ifdef USART1
 #define COM0   (&(COM_MAP_T){RCC_APB2PeriphClockCmd, RCC_APB2Periph_USART1, {USART1,USART1_IRQn}})
 #endif
diff --git a/Bsp/Src/Bsp.c b/Bsp/Src/Bsp.c
index c4dd95c..a07c6e6 100644
--- a/Bsp/Src/Bsp.c
+++ b/Bsp/Src/Bsp.c
@@ -25,8 +25,8 @@ const GPIO_CONFIG DO_PERIPH[] = {
 #endif
 //串口配置表
 const COM_CONFIG COM_PERIPH[] = {
-    {COM0,.TxPort = GPIO9, .RxPort =GPIO10, .Speed = GPIO_Speed_50MHz},
-    {COM1,.TxPort = GPIO2, .RxPort = GPIO3, .Speed = GPIO_Speed_50MHz},
+    {COM0,.TxPort = GPIO9, .RxPort =GPIO10, .Speed = GPIO_Speed_50MHz,.Rs485 = false},
+    {COM1,.TxPort = GPIO2, .RxPort = GPIO3, .Speed = GPIO_Speed_50MHz,.Rs485 = true,.TxRxEn = GPIO55},
 };
 
 void BspExtraInit(void);
@@ -80,6 +80,9 @@ void BspInit(void) {
     for (i = 0;i < ARRAY_LEN(COM_PERIPH);i++) {
         GpioConfig(&COM_PERIPH[i].TxPort, GPIO_Mode_AF_PP, COM_PERIPH[i].Speed);
         GpioConfig(&COM_PERIPH[i].RxPort, GPIO_Mode_IPU, COM_PERIPH[i].Speed);
+        if (COM_PERIPH[i].Rs485 == true) {
+            GpioConfig(&COM_PERIPH[i].TxRxEn, GPIO_Mode_AF_PP, COM_PERIPH[i].Speed);
+        }
     }
 
     INTERRUPT_ENABLE
diff --git a/Bsp/Src/Uart.c b/Bsp/Src/Uart.c
index bf2e2eb..2796a41 100644
--- a/Bsp/Src/Uart.c
+++ b/Bsp/Src/Uart.c
@@ -1,5 +1,7 @@
 #include "Bsp.h"
 
+extern const COM_CONFIG COM_PERIPH[];
+
 /**
  * @brief  初始化UART口外设的时钟
  * @note  void