更新：

1、HART连接模式的按键选择逻辑调整；
2、HART关闭的情况下补充对3个GPIO引脚的复位；

App/APP_WU/Inc/apps_gather.h

@@ -80,6 +80,13 @@ extern const lv_img_dsc_t * screen_main_ani_out_sign_imgs[4];
 #include "scr_setting_progam_out.h"
 #include "modbus_register_process.h"
 
+typedef struct
+{
+    HAL_StatusTypeDef ust_RS485;
+    HAL_StatusTypeDef ust_BLE;
+    HAL_StatusTypeDef ust_HART;
+}UARTS_STATUS;
+
 extern PHYSICAL_QUANTITY VOL[2];            //电压，VOL[0]-V, VOL[1]-mV
 extern PHYSICAL_QUANTITY CUR;               //电流，mA
 extern PHYSICAL_QUANTITY RES;               //电阻，Ω
@@ -89,6 +96,7 @@ extern PHYSICAL_QUANTITY RTD;               //热电阻
 extern OPERATIONS current_operation;        //当前操作
 extern SYSTEM_STATUS_WATCH system_sts;      //系统状态监控
 extern SIG_TRANSMISSION sig_trans;          //通讯模式
+extern UARTS_STATUS uarts_status; 
 
 //绝对值计算
 #define MY_ABS(pa) ( ( (pa) >= 0 )?( (pa) ):( 0 - (pa) ) ) 

App/APP_WU/Src/app_screen_setting.c

@@ -1017,7 +1017,14 @@ void set_communication_modify(uint8_t con, int8_t step)
         case TEXT_HART:
         {
             tabdata.hart_enable += step;
-            if(tabdata.hart_enable > 3) tabdata.hart_enable = 0;
+            if(tabdata.hart_enable > 200) 
+            {
+                tabdata.hart_enable = 3;
+            }
+            else if(tabdata.hart_enable > 3)
+            {
+                tabdata.hart_enable = 0;
+            }
 
             //通讯方式互斥
             if(tabdata.hart_enable)

App/APP_WU/Src/apps_gather.c

@@ -10,6 +10,7 @@ PHYSICAL_QUANTITY TC[8];                    //热电偶，共8种
 PHYSICAL_QUANTITY RTD;                      //热电阻
 SYSTEM_STATUS_WATCH system_sts;             //系统状态监控
 SIG_TRANSMISSION sig_trans = TRANS_NONE;    //通讯模式
+UARTS_STATUS uarts_status;                  //各个串口的状态
 
 // 热电偶真值表，电压mV
 // 行：[0,7]->[K, S, N, B, E, J, R, T]，列：[0,10]->[mV_Tmin,...,mV_Tmax](均分成10个间隔，11个端点)

App/APP_WU/Src/timer.c

@@ -102,7 +102,7 @@ void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart)
     scom1_hart.tx_len = 0;
 
     //PC--->SIG--->HART，重新开启485的DMA
-    HAL_UART_Receive_DMA(&huart2, scom2_rs485.rx_buff, BUFFER_SIZE);
+    uarts_status.ust_RS485 = HAL_UART_Receive_DMA(&huart2, scom2_rs485.rx_buff, BUFFER_SIZE);
   }
   else if(huart == &huart2)
   {
@@ -114,26 +114,26 @@ void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart)
     {
       case TRANS_HART_TO_PC:
       {
-        HAL_UART_Receive_DMA(&huart1, scom1_hart.rx_buff, BUFFER_SIZE);
+        uarts_status.ust_HART = HAL_UART_Receive_DMA(&huart1, scom1_hart.rx_buff, BUFFER_SIZE);
       }
       break;
 
       case TRANS_BLE_TO_PC:
       {
-        HAL_UART_Receive_DMA(&huart6, scom6_ble.rx_buff, BUFFER_SIZE);
+        uarts_status.ust_BLE = HAL_UART_Receive_DMA(&huart6, scom6_ble.rx_buff, BUFFER_SIZE);
       }
       break;
 
       case TRANS_MODBUS_PC_TO_SIG:
       {
-        HAL_UART_Receive_DMA(&huart2, scom2_rs485.rx_buff, BUFFER_SIZE);
+        uarts_status.ust_RS485 = HAL_UART_Receive_DMA(&huart2, scom2_rs485.rx_buff, BUFFER_SIZE);
       }
       break;
 
       case TRANS_MODBUS_SIG_TO_SLAVE:
       {
         mod_master.tx_flag = TX_OK;
-        HAL_UART_Receive_DMA(&huart2, scom2_rs485.rx_buff, BUFFER_SIZE);
+        uarts_status.ust_RS485 = HAL_UART_Receive_DMA(&huart2, scom2_rs485.rx_buff, BUFFER_SIZE);
         sig2slave_current_tick = 0;
       }
       break;
@@ -148,7 +148,7 @@ void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart)
     scom6_ble.tx_len = 0;
 
     //PC--->SIG--->BLE，重新开启485的DMA
-    HAL_UART_Receive_DMA(&huart2, scom2_rs485.rx_buff, BUFFER_SIZE);
+    uarts_status.ust_RS485 = HAL_UART_Receive_DMA(&huart2, scom2_rs485.rx_buff, BUFFER_SIZE);
   }
 
   //通讯模式清空，等待下一次接收

App/MODBUS/Src/modbus_485.c

@@ -236,7 +236,7 @@ void trans_modbus_sig2slave(void)
                 {
                     //修改剩余buff长度，继续接收
                     buffer_size_temp -= scom2_rs485.rx_len;
-                    HAL_UART_Receive_DMA(&huart2, scom2_rs485.rx_buff + sig2slave_data_length_total, buffer_size_temp);
+                    uarts_status.ust_RS485 = HAL_UART_Receive_DMA(&huart2, scom2_rs485.rx_buff + sig2slave_data_length_total, buffer_size_temp);
                 }
                 sig2slave_step++;
             }
@@ -258,7 +258,7 @@ void trans_modbus_sig2slave(void)
                 {
                     //继续接收
                     buffer_size_temp -= sig2slave_data_length_temp;
-                    HAL_UART_Receive_DMA(&huart2, scom2_rs485.rx_buff + sig2slave_data_length_total, buffer_size_temp);
+                    uarts_status.ust_RS485 = HAL_UART_Receive_DMA(&huart2, scom2_rs485.rx_buff + sig2slave_data_length_total, buffer_size_temp);
                 }
             }
             break;
@@ -289,7 +289,7 @@ void trans_modbus_sig2slave(void)
                 sig2slave_data_length_total = 0;
                 buffer_size_temp = BUFFER_SIZE;
 
-                HAL_UART_Receive_DMA(&huart2, scom2_rs485.rx_buff, BUFFER_SIZE);
+                uarts_status.ust_RS485 = HAL_UART_Receive_DMA(&huart2, scom2_rs485.rx_buff, BUFFER_SIZE);
             }
             break;
         

Core/Src/freertos.c

@@ -232,6 +232,10 @@ void start_task_hart(void const * argument)
           fre_set_hart = 0;
           frequence_output(fre_set_hart, 50, PWM_HART);
         }
+
+        HART_24V_DISABLE;
+        HART_VOUT_DISABLE;
+        HART_250OHM_DISABLE;
       }
       break;
 
@@ -331,9 +335,29 @@ void start_rs485(void const * argument)
   for (;;)
   {
     //当前通讯状态的更新
-    if( !(tabdata.bluetooth_enable||tabdata.hart_enable||tabdata.modbus_enable) )
+    if(sig_trans == TRANS_NONE)
     {
-      sig_trans = TRANS_NONE;
+      if(uarts_status.ust_RS485 != HAL_OK)
+      {
+        uarts_status.ust_RS485 = HAL_UART_Receive_DMA(&huart2, scom2_rs485.rx_buff, BUFFER_SIZE);
+      }
+
+      if(uarts_status.ust_HART != HAL_OK)
+      {
+        uarts_status.ust_HART = HAL_UART_Receive_DMA(&huart1, scom1_hart.rx_buff, BUFFER_SIZE);
+      }
+
+      if(uarts_status.ust_BLE != HAL_OK)
+      {
+        uarts_status.ust_BLE = HAL_UART_Receive_DMA(&huart6, scom6_ble.rx_buff, BUFFER_SIZE);
+      }
+    }
+    else
+    {
+      if( !(tabdata.bluetooth_enable||tabdata.hart_enable||tabdata.modbus_enable) )
+      {
+        sig_trans = TRANS_NONE;
+      }
     }
 
     //更新modbus的寄存器值

Core/Src/main.c

@@ -121,9 +121,9 @@ int main(void)
   HAL_TIM_Base_Start_IT(&htim8);
   
   #if RX_DMA_ENABLE
-  HAL_UART_Receive_DMA(&huart1, scom1_hart.rx_buff, BUFFER_SIZE);
+    uarts_status.ust_HART = HAL_UART_Receive_DMA(&huart1, scom1_hart.rx_buff, BUFFER_SIZE);
-  HAL_UART_Receive_DMA(&huart2, scom2_rs485.rx_buff, BUFFER_SIZE);
+    uarts_status.ust_RS485 = HAL_UART_Receive_DMA(&huart2, scom2_rs485.rx_buff, BUFFER_SIZE);
-  HAL_UART_Receive_DMA(&huart6, scom6_ble.rx_buff, BUFFER_SIZE);
+    uarts_status.ust_BLE = HAL_UART_Receive_DMA(&huart6, scom6_ble.rx_buff, BUFFER_SIZE);
   #endif
 
   /* USER CODE END 2 */

Core/Src/usart.c

@@ -540,8 +540,7 @@ void proc_huart_it(UART_HandleTypeDef *huart)
 
     sig_trans = TRANS_NONE;
     __HAL_UART_CLEAR_IDLEFLAG(huart);
-    HAL_UART_DMAStop(huart);
+    __HAL_UART_CLEAR_FLAG(huart, UART_FLAG_RXNE);
-    HAL_UART_Receive_DMA(huart, scom->rx_buff, BUFFER_SIZE);
 
     return;
   }
@@ -597,9 +596,22 @@ void proc_huart_it_dma(UART_HandleTypeDef *huart)
 
   //端口选择
   st_scom *scom;
-  if(huart == &huart1) scom = &scom1_hart;
+  HAL_StatusTypeDef *scom_sts;
-  if(huart == &huart6) scom = &scom6_ble;
+  if(huart == &huart1) 
-  if(huart == &huart2) scom = &scom2_rs485;
+  {
+    scom = &scom1_hart;
+    scom_sts = &uarts_status.ust_HART;
+  }
+  else if(huart == &huart6) 
+  {
+    scom = &scom6_ble;
+    scom_sts = &uarts_status.ust_BLE;
+  }
+  else if(huart == &huart2) 
+  {
+    scom = &scom2_rs485;
+    scom_sts = &uarts_status.ust_RS485;
+  }
   if( !scom ) return;
 
   //对应功能是否使能
@@ -611,7 +623,7 @@ void proc_huart_it_dma(UART_HandleTypeDef *huart)
     sig_trans = TRANS_NONE;
     __HAL_UART_CLEAR_IDLEFLAG(huart);
     HAL_UART_DMAStop(huart);
-    HAL_UART_Receive_DMA(huart, scom->rx_buff, BUFFER_SIZE);
+    *scom_sts = HAL_UART_Receive_DMA(huart, scom->rx_buff, BUFFER_SIZE);
 
     return;
   }

MDK-ARM/signal_generator.uvoptx

@@ -270,6 +270,11 @@
           <WinNumber>1</WinNumber>
           <ItemText>cali_paras</ItemText>
         </Ww>
+        <Ww>
+          <count>23</count>
+          <WinNumber>1</WinNumber>
+          <ItemText>uarts_status</ItemText>
+        </Ww>
       </WatchWindow1>
       <WatchWindow2>
         <Ww>