RS485 UART переделал на DMA по образцу HVD4

.mxproject

@@ -9,17 +9,17 @@ CDefines=USE_HAL_DRIVER;STM32F030x6;USE_HAL_DRIVER;USE_HAL_DRIVER;
 [PreviousGenFiles]
 AdvancedFolderStructure=true
 HeaderFileListSize=3
-HeaderFiles#0=Y:/Projects_Eagle/Ecros/RS485_Relay_V1R1/STM32/Relay_RS485/Core/Inc/stm32f0xx_it.h
+HeaderFiles#0=..\Core\Inc\stm32f0xx_it.h
-HeaderFiles#1=Y:/Projects_Eagle/Ecros/RS485_Relay_V1R1/STM32/Relay_RS485/Core/Inc/stm32f0xx_hal_conf.h
+HeaderFiles#1=..\Core\Inc\stm32f0xx_hal_conf.h
-HeaderFiles#2=Y:/Projects_Eagle/Ecros/RS485_Relay_V1R1/STM32/Relay_RS485/Core/Inc/main.h
+HeaderFiles#2=..\Core\Inc\main.h
 HeaderFolderListSize=1
-HeaderPath#0=Y:/Projects_Eagle/Ecros/RS485_Relay_V1R1/STM32/Relay_RS485/Core/Inc
+HeaderPath#0=..\Core\Inc
 HeaderFiles=;
 SourceFileListSize=3
-SourceFiles#0=Y:/Projects_Eagle/Ecros/RS485_Relay_V1R1/STM32/Relay_RS485/Core/Src/stm32f0xx_it.c
+SourceFiles#0=..\Core\Src\stm32f0xx_it.c
-SourceFiles#1=Y:/Projects_Eagle/Ecros/RS485_Relay_V1R1/STM32/Relay_RS485/Core/Src/stm32f0xx_hal_msp.c
+SourceFiles#1=..\Core\Src\stm32f0xx_hal_msp.c
-SourceFiles#2=Y:/Projects_Eagle/Ecros/RS485_Relay_V1R1/STM32/Relay_RS485/Core/Src/main.c
+SourceFiles#2=..\Core\Src\main.c
 SourceFolderListSize=1
-SourcePath#0=Y:/Projects_Eagle/Ecros/RS485_Relay_V1R1/STM32/Relay_RS485/Core/Src
+SourcePath#0=..\Core\Src
 SourceFiles=;
 

Core/Inc/board_logic.h

@@ -13,6 +13,6 @@
 #define REL_AUX_BIT    		(1u<<1)
 
 void loop_iterate();
-
+void timer1_ovf_isr(void);
 
 #endif 

Core/Inc/modbus_logic.h

@@ -24,7 +24,7 @@ enum send_state {SEND_IDLE, SEND_BUSY};
 
 void UART_RxCpltCallback(void);
 void UART_TxCpltCallback(void);
-
+void process_incoming_packet();
 void modbus_loop_iterate();
 uint8_t read_register(uint16_t address, uint16_t* value);
 uint8_t write_register(uint16_t address, uint16_t value);

Core/Inc/stm32f0xx_it.h

@@ -51,6 +51,7 @@ void HardFault_Handler(void);
 void SVC_Handler(void);
 void PendSV_Handler(void);
 void SysTick_Handler(void);
+void DMA1_Channel2_3_IRQHandler(void);
 void TIM1_BRK_UP_TRG_COM_IRQHandler(void);
 void TIM1_CC_IRQHandler(void);
 void USART1_IRQHandler(void);

Core/Inc/uart.h

@@ -1,13 +0,0 @@
-#ifndef __UART_H
-#define __UART_H
-#include <stdint.h>
-
-#define RET_OK          0
-#define RET_OVERFLOW    1
-#define RET_TIMEOUT     2
-
-uint8_t UART_Transmit_IT(uint8_t * data, uint16_t len, uint16_t timeout);
-uint8_t UART_Receive_IT(uint8_t * data, uint16_t len, uint16_t timeout);
-extern void UART_TxCpltCallback(void);
-extern void UART_RxCpltCallback(void);
-#endif

Core/Src/main.c

@@ -47,6 +47,8 @@ TIM_HandleTypeDef htim1;
 TIM_HandleTypeDef htim3;
 
 UART_HandleTypeDef huart1;
+DMA_HandleTypeDef hdma_usart1_rx;
+DMA_HandleTypeDef hdma_usart1_tx;
 
 /* USER CODE BEGIN PV */
 
@@ -55,6 +57,7 @@ UART_HandleTypeDef huart1;
 /* Private function prototypes -----------------------------------------------*/
 void SystemClock_Config(void);
 static void MX_GPIO_Init(void);
+static void MX_DMA_Init(void);
 static void MX_TIM3_Init(void);
 static void MX_USART1_UART_Init(void);
 static void MX_TIM1_Init(void);
@@ -95,11 +98,11 @@ int main(void)
 
   /* Initialize all configured peripherals */
   MX_GPIO_Init();
+  MX_DMA_Init();
   MX_TIM3_Init();
   MX_USART1_UART_Init();
   MX_TIM1_Init();
   /* USER CODE BEGIN 2 */
-  __HAL_UART_ENABLE_IT(&huart1, UART_IT_RXNE); // включить прерывания usart'a
   HAL_TIM_Base_Start_IT(&htim1);
 
   /* USER CODE END 2 */
@@ -290,6 +293,22 @@ static void MX_USART1_UART_Init(void)
 
 }
 
+/**
+  * Enable DMA controller clock
+  */
+static void MX_DMA_Init(void)
+{
+
+  /* DMA controller clock enable */
+  __HAL_RCC_DMA1_CLK_ENABLE();
+
+  /* DMA interrupt init */
+  /* DMA1_Channel2_3_IRQn interrupt configuration */
+  HAL_NVIC_SetPriority(DMA1_Channel2_3_IRQn, 2, 0);
+  HAL_NVIC_EnableIRQ(DMA1_Channel2_3_IRQn);
+
+}
+
 /**
   * @brief GPIO Initialization Function
   * @param None

Core/Src/modbus_logic.c

@@ -6,11 +6,13 @@
 
 #include <stdint.h>
 #include "main.h"
-#include "uart.h"
 #include "modbus_logic.h"
 
-volatile uint8_t recv_buffer[BUFFERS_SIZE];
+extern UART_HandleTypeDef huart1;
-volatile uint8_t send_buffer[BUFFERS_SIZE];
+extern DMA_HandleTypeDef hdma_usart1_rx;
+
+uint8_t recv_buffer[BUFFERS_SIZE];
+uint8_t send_buffer[BUFFERS_SIZE];
 
 uint16_t bytes_to_send = 0;
 uint16_t last_rx_time = 0xFFFF;
@@ -19,37 +21,37 @@ enum send_state cmd_sending = SEND_IDLE;
 uint16_t tranfer_errors_count;
 extern uint16_t led_time_act;
 
-static void process_incoming_packet();
+void process_incoming_packet();
 
-void UART_RxCpltCallback(void)
+#define TXEN_ON		HAL_GPIO_WritePin(TXEN_GPIO_Port, TXEN_Pin, GPIO_PIN_SET)
+#define TXEN_OFF	HAL_GPIO_WritePin(TXEN_GPIO_Port, TXEN_Pin, GPIO_PIN_RESET)
+
+void HAL_UARTEx_RxEventCallback(UART_HandleTypeDef *huart, uint16_t Size)
 {
-  uint16_t pdu_size;
+	if (huart->Instance == USART1)
-  uint16_t remaining_size;
-  if (cmd_receiving == RECV_READ_HEADER)
 	{
-      // Check destination address
 		  if (recv_buffer[5] != BOARD_ADRESS)
 		  {
 			  cmd_receiving = RECV_ERROR;
 			  return;
 		  }
-      
 		  // Check function code
 		  if (recv_buffer[6] == 3 || recv_buffer[6] == 4 || recv_buffer[6] == 6)
 		  {
-		  cmd_receiving = RECV_READ_COMPLETE;
+			  if(Size==MODBUS_HEADER_SIZE)cmd_receiving = RECV_READ_COMPLETE;
 			  return;
 		  }
 		  else if (recv_buffer[6] == 0x10)
 		  {
-		  cmd_receiving = RECV_READ_DATA;
+			  uint16_t pdu_size = *((uint16_t*)(recv_buffer + 2));
-		  pdu_size = *((uint16_t*)(recv_buffer + 2));
+			  uint16_t remaining_size = pdu_size - (MODBUS_HEADER_SIZE - 4) + 2;
-		  // Receive remaining PDU and checksum
+			  if (remaining_size + MODBUS_HEADER_SIZE == Size)
-		  remaining_size = pdu_size - (MODBUS_HEADER_SIZE - 4) + 2;
+				  cmd_receiving = RECV_READ_COMPLETE;
-		  if (remaining_size + MODBUS_HEADER_SIZE <= BUFFERS_SIZE)
-			  UART_Receive_IT(recv_buffer + MODBUS_HEADER_SIZE, remaining_size, 5000);
 			  else
+			  {
+				  cmd_receiving = RECV_ERROR;
 				  tranfer_errors_count++;
+			  }
 			  return;
 		  }
 		  else
@@ -59,15 +61,16 @@ void UART_RxCpltCallback(void)
 			  return;
 		  }
 	}
-  else if (cmd_receiving == RECV_READ_DATA)
-  {
-	  cmd_receiving = RECV_READ_COMPLETE;
-  }
 }
 
-void UART_TxCpltCallback()
+void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart)
 {
+	if (huart->Instance == USART1)
+	{
 		cmd_sending = SEND_IDLE;
+		TXEN_OFF;
+	}
+
 }
 
 void modbus_loop_iterate()
@@ -76,19 +79,22 @@ void modbus_loop_iterate()
 	{
 		if (cmd_receiving == RECV_ERROR)
 		{
-			//delay_ms(30); // poor man's way to synchronize packets
+			// poor man's way to synchronize packets
-            if(last_rx_time>=BUS_IDLE_TIME)
+            //if(last_rx_time>=BUS_IDLE_TIME)
-            {
+            //{
                 cmd_receiving = RECV_IDLE;
                 //TXEN_485 = 1;
                 //delay_us(10);
                 //TXEN_485 = 0;
-            }
+            //}
 		}
 		if (cmd_receiving == RECV_IDLE)
+		{
+			if(HAL_UARTEx_ReceiveToIdle_DMA(&huart1, recv_buffer, BUFFERS_SIZE)==HAL_OK)
 			{
 				cmd_receiving = RECV_READ_HEADER;
-			UART_Receive_IT(recv_buffer, MODBUS_HEADER_SIZE, 5000);
+				__HAL_DMA_DISABLE_IT(&hdma_usart1_rx, DMA_IT_HT);
+			}
 		}
 		else if (cmd_receiving == RECV_READ_COMPLETE)
 		{
@@ -98,7 +104,8 @@ void modbus_loop_iterate()
 	}
 	else if (cmd_sending == SEND_BUSY && bytes_to_send != 0)
 	{
-		UART_Transmit_IT(send_buffer, bytes_to_send, 1000);
+		TXEN_ON;
+		HAL_UART_Transmit_DMA(&huart1, send_buffer, bytes_to_send);
 		bytes_to_send = 0;
 	}
 }

Core/Src/stm32f0xx_hal_msp.c

@@ -23,6 +23,9 @@
 /* USER CODE BEGIN Includes */
 
 /* USER CODE END Includes */
+extern DMA_HandleTypeDef hdma_usart1_rx;
+
+extern DMA_HandleTypeDef hdma_usart1_tx;
 
 /* Private typedef -----------------------------------------------------------*/
 /* USER CODE BEGIN TD */
@@ -94,9 +97,9 @@ void HAL_TIM_Base_MspInit(TIM_HandleTypeDef* htim_base)
     /* Peripheral clock enable */
     __HAL_RCC_TIM1_CLK_ENABLE();
     /* TIM1 interrupt Init */
-    HAL_NVIC_SetPriority(TIM1_BRK_UP_TRG_COM_IRQn, 0, 0);
+    HAL_NVIC_SetPriority(TIM1_BRK_UP_TRG_COM_IRQn, 3, 0);
     HAL_NVIC_EnableIRQ(TIM1_BRK_UP_TRG_COM_IRQn);
-    HAL_NVIC_SetPriority(TIM1_CC_IRQn, 0, 0);
+    HAL_NVIC_SetPriority(TIM1_CC_IRQn, 3, 0);
     HAL_NVIC_EnableIRQ(TIM1_CC_IRQn);
   /* USER CODE BEGIN TIM1_MspInit 1 */
 
@@ -230,8 +233,41 @@ void HAL_UART_MspInit(UART_HandleTypeDef* huart)
     GPIO_InitStruct.Alternate = GPIO_AF1_USART1;
     HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
 
+    /* USART1 DMA Init */
+    /* USART1_RX Init */
+    hdma_usart1_rx.Instance = DMA1_Channel3;
+    hdma_usart1_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
+    hdma_usart1_rx.Init.PeriphInc = DMA_PINC_DISABLE;
+    hdma_usart1_rx.Init.MemInc = DMA_MINC_ENABLE;
+    hdma_usart1_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
+    hdma_usart1_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
+    hdma_usart1_rx.Init.Mode = DMA_NORMAL;
+    hdma_usart1_rx.Init.Priority = DMA_PRIORITY_LOW;
+    if (HAL_DMA_Init(&hdma_usart1_rx) != HAL_OK)
+    {
+      Error_Handler();
+    }
+
+    __HAL_LINKDMA(huart,hdmarx,hdma_usart1_rx);
+
+    /* USART1_TX Init */
+    hdma_usart1_tx.Instance = DMA1_Channel2;
+    hdma_usart1_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
+    hdma_usart1_tx.Init.PeriphInc = DMA_PINC_DISABLE;
+    hdma_usart1_tx.Init.MemInc = DMA_MINC_ENABLE;
+    hdma_usart1_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
+    hdma_usart1_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
+    hdma_usart1_tx.Init.Mode = DMA_NORMAL;
+    hdma_usart1_tx.Init.Priority = DMA_PRIORITY_LOW;
+    if (HAL_DMA_Init(&hdma_usart1_tx) != HAL_OK)
+    {
+      Error_Handler();
+    }
+
+    __HAL_LINKDMA(huart,hdmatx,hdma_usart1_tx);
+
     /* USART1 interrupt Init */
-    HAL_NVIC_SetPriority(USART1_IRQn, 0, 0);
+    HAL_NVIC_SetPriority(USART1_IRQn, 1, 0);
     HAL_NVIC_EnableIRQ(USART1_IRQn);
   /* USER CODE BEGIN USART1_MspInit 1 */
 
@@ -262,6 +298,10 @@ void HAL_UART_MspDeInit(UART_HandleTypeDef* huart)
     */
     HAL_GPIO_DeInit(GPIOA, GPIO_PIN_9|GPIO_PIN_10);
 
+    /* USART1 DMA DeInit */
+    HAL_DMA_DeInit(huart->hdmarx);
+    HAL_DMA_DeInit(huart->hdmatx);
+
     /* USART1 interrupt DeInit */
     HAL_NVIC_DisableIRQ(USART1_IRQn);
   /* USER CODE BEGIN USART1_MspDeInit 1 */

Core/Src/stm32f0xx_it.c

@@ -56,6 +56,8 @@
 
 /* External variables --------------------------------------------------------*/
 extern TIM_HandleTypeDef htim1;
+extern DMA_HandleTypeDef hdma_usart1_rx;
+extern DMA_HandleTypeDef hdma_usart1_tx;
 extern UART_HandleTypeDef huart1;
 /* USER CODE BEGIN EV */
 
@@ -141,6 +143,21 @@ void SysTick_Handler(void)
 /* please refer to the startup file (startup_stm32f0xx.s).                    */
 /******************************************************************************/
 
+/**
+  * @brief This function handles DMA1 channel 2 and 3 interrupts.
+  */
+void DMA1_Channel2_3_IRQHandler(void)
+{
+  /* USER CODE BEGIN DMA1_Channel2_3_IRQn 0 */
+
+  /* USER CODE END DMA1_Channel2_3_IRQn 0 */
+  HAL_DMA_IRQHandler(&hdma_usart1_tx);
+  HAL_DMA_IRQHandler(&hdma_usart1_rx);
+  /* USER CODE BEGIN DMA1_Channel2_3_IRQn 1 */
+
+  /* USER CODE END DMA1_Channel2_3_IRQn 1 */
+}
+
 /**
   * @brief This function handles TIM1 break, update, trigger and commutation interrupts.
   */
@@ -175,8 +192,6 @@ void TIM1_CC_IRQHandler(void)
 void USART1_IRQHandler(void)
 {
   /* USER CODE BEGIN USART1_IRQn 0 */
-	  USER_UART1_IRQHandler(&huart1);
-	  return;
 
   /* USER CODE END USART1_IRQn 0 */
   HAL_UART_IRQHandler(&huart1);

Core/Src/uart.c

@@ -1,102 +0,0 @@
-#include "uart.h"
-#include "main.h"
-#include <stdint.h>
-#include <string.h>
-#include <stdio.h> 
-
-uint8_t * uart_tx_buf;
-uint8_t uart_tx_busy=0;
-uint16_t uart_tx_counter=0;
-uint16_t uart_tx_len=0;
-
-uint8_t * uart_rx_buf;
-uint8_t uart_rx_busy=0;
-uint16_t uart_rx_counter=0;
-uint16_t uart_rx_len=0;
-extern uint16_t last_rx_time;
-
-extern UART_HandleTypeDef huart1;
-
-#define TXEN_ON		HAL_GPIO_WritePin(TXEN_GPIO_Port, TXEN_Pin, GPIO_PIN_SET)
-#define TXEN_OFF	HAL_GPIO_WritePin(TXEN_GPIO_Port, TXEN_Pin, GPIO_PIN_RESET)
-
-void USER_UART1_IRQHandler(UART_HandleTypeDef *huart)
-{
-    uint8_t data;
-
-    if((huart1.Instance->ISR & USART_ISR_RXNE) != RESET)
-		{
-		last_rx_time = 0;
-		data = (uint8_t)(huart1.Instance->RDR & (uint8_t)0x00FF); // читает байт из регистра
-		if(uart_rx_busy)
-			{
-			uart_rx_buf[uart_rx_counter]=data;
-			if(++uart_rx_counter == uart_rx_len)
-				{
-				uart_rx_busy = 0;
-				UART_RxCpltCallback();
-				}
-			}
-
-		}
-
-    if((uart_tx_busy)&&((huart1.Instance->ISR & USART_ISR_TC) != RESET))
-		{
-        if(++uart_tx_counter == uart_tx_len)
-            {
-        	TXEN_OFF;
-            uart_tx_busy = 0;
-            UART_TxCpltCallback();
-            __HAL_UART_DISABLE_IT(&huart1, UART_IT_TC);
-            }
-        else
-            //putchar(uart_tx_buf[uart_tx_counter]);
-        	huart->Instance->TDR=uart_tx_buf[uart_tx_counter];
-		}
-    huart->Instance->ICR=0xFFFFFFFF;
-}
-
-uint8_t UART_Receive_IT(uint8_t * data, uint16_t len, uint16_t timeout)
-{
-    uint16_t i;
-      
-    //if(len>UART_RX_LEN)return RET_OVERFLOW;
-    for(i=0;i<timeout;i++)
-    {
-        if(uart_rx_busy!=0)
-            HAL_Delay(1);
-        else
-            break;
-    }
-    if(i==timeout) return RET_TIMEOUT;        
-    uart_rx_counter = 0;
-    uart_rx_len = len;
-    uart_rx_buf = data;
-    uart_rx_busy = 1;
-    return RET_OK;
-}
-
-
-uint8_t UART_Transmit_IT(uint8_t * data, uint16_t len, uint16_t timeout)
-{
-    uint16_t i;
-    
-    for(i=0;i<timeout;i++)
-    {
-        if(uart_tx_busy!=0)
-            HAL_Delay(1);
-        else
-            break;
-    }
-    if(i==timeout) return RET_TIMEOUT;        
-    uart_tx_busy = 1;
-    TXEN_ON;
-    HAL_Delay(1);
-    uart_tx_buf = data;
-    uart_tx_counter = 0;
-    uart_tx_len = len;
-	huart1.Instance->TDR=uart_tx_buf[0];
-    //putchar(uart_tx_buf[0]);
-    __HAL_UART_ENABLE_IT(&huart1, UART_IT_TC);
-    return RET_OK;
-}

Relay_RS485 Debug.launch

@@ -38,7 +38,7 @@
     <stringAttribute key="com.st.stm32cube.ide.mcu.debug.stlink.stlink_txt_serial_number" value=""/>
     <stringAttribute key="com.st.stm32cube.ide.mcu.debug.stlink.watchdog_config" value="none"/>
     <booleanAttribute key="com.st.stm32cube.ide.mcu.debug.stlinkenable_rtos" value="false"/>
-    <stringAttribute key="com.st.stm32cube.ide.mcu.debug.stlinkrestart_configurations" value="{&quot;fItems&quot;:[{&quot;fDisplayName&quot;:&quot;Reset&quot;,&quot;fIsSuppressible&quot;:false,&quot;fResetAttribute&quot;:&quot;Software system reset&quot;,&quot;fResetStrategies&quot;:[{&quot;fDisplayName&quot;:&quot;Software system reset&quot;,&quot;fLaunchAttribute&quot;:&quot;system_reset&quot;,&quot;fGdbCommands&quot;:[&quot;monitor reset\r\n&quot;],&quot;fCmdOptions&quot;:[&quot;-g&quot;]},{&quot;fDisplayName&quot;:&quot;Hardware reset&quot;,&quot;fLaunchAttribute&quot;:&quot;hardware_reset&quot;,&quot;fGdbCommands&quot;:[&quot;monitor reset hardware\r\n&quot;],&quot;fCmdOptions&quot;:[&quot;-g&quot;]},{&quot;fDisplayName&quot;:&quot;Core reset&quot;,&quot;fLaunchAttribute&quot;:&quot;core_reset&quot;,&quot;fGdbCommands&quot;:[&quot;monitor reset core\r\n&quot;],&quot;fCmdOptions&quot;:[&quot;-g&quot;]},{&quot;fDisplayName&quot;:&quot;None&quot;,&quot;fLaunchAttribute&quot;:&quot;no_reset&quot;,&quot;fGdbCommands&quot;:[],&quot;fCmdOptions&quot;:[&quot;-g&quot;]}],&quot;fGdbCommandGroup&quot;:{&quot;name&quot;:&quot;Additional commands&quot;,&quot;commands&quot;:[]}}]}"/>
+    <stringAttribute key="com.st.stm32cube.ide.mcu.debug.stlinkrestart_configurations" value="{&quot;fVersion&quot;:1,&quot;fItems&quot;:[{&quot;fDisplayName&quot;:&quot;Reset&quot;,&quot;fIsSuppressible&quot;:false,&quot;fResetAttribute&quot;:&quot;Software system reset&quot;,&quot;fResetStrategies&quot;:[{&quot;fDisplayName&quot;:&quot;Software system reset&quot;,&quot;fLaunchAttribute&quot;:&quot;system_reset&quot;,&quot;fGdbCommands&quot;:[&quot;monitor reset\r\n&quot;],&quot;fCmdOptions&quot;:[&quot;-g&quot;]},{&quot;fDisplayName&quot;:&quot;Hardware reset&quot;,&quot;fLaunchAttribute&quot;:&quot;hardware_reset&quot;,&quot;fGdbCommands&quot;:[&quot;monitor reset hardware\r\n&quot;],&quot;fCmdOptions&quot;:[&quot;-g&quot;]},{&quot;fDisplayName&quot;:&quot;Core reset&quot;,&quot;fLaunchAttribute&quot;:&quot;core_reset&quot;,&quot;fGdbCommands&quot;:[&quot;monitor reset core\r\n&quot;],&quot;fCmdOptions&quot;:[&quot;-g&quot;]},{&quot;fDisplayName&quot;:&quot;None&quot;,&quot;fLaunchAttribute&quot;:&quot;no_reset&quot;,&quot;fGdbCommands&quot;:[],&quot;fCmdOptions&quot;:[&quot;-g&quot;]}],&quot;fGdbCommandGroup&quot;:{&quot;name&quot;:&quot;Additional commands&quot;,&quot;commands&quot;:[]},&quot;fStartApplication&quot;:true}]}"/>
     <booleanAttribute key="com.st.stm32cube.ide.mcu.rtosproxy.enableRtosProxy" value="false"/>
     <stringAttribute key="com.st.stm32cube.ide.mcu.rtosproxy.rtosProxyCustomProperties" value=""/>
     <stringAttribute key="com.st.stm32cube.ide.mcu.rtosproxy.rtosProxyDriver" value="threadx"/>

Relay_RS485.ioc

@@ -1,15 +1,38 @@
 #MicroXplorer Configuration settings - do not modify
+Dma.Request0=USART1_RX
+Dma.Request1=USART1_TX
+Dma.RequestsNb=2
+Dma.USART1_RX.0.Direction=DMA_PERIPH_TO_MEMORY
+Dma.USART1_RX.0.Instance=DMA1_Channel3
+Dma.USART1_RX.0.MemDataAlignment=DMA_MDATAALIGN_BYTE
+Dma.USART1_RX.0.MemInc=DMA_MINC_ENABLE
+Dma.USART1_RX.0.Mode=DMA_NORMAL
+Dma.USART1_RX.0.PeriphDataAlignment=DMA_PDATAALIGN_BYTE
+Dma.USART1_RX.0.PeriphInc=DMA_PINC_DISABLE
+Dma.USART1_RX.0.Priority=DMA_PRIORITY_LOW
+Dma.USART1_RX.0.RequestParameters=Instance,Direction,PeriphInc,MemInc,PeriphDataAlignment,MemDataAlignment,Mode,Priority
+Dma.USART1_TX.1.Direction=DMA_MEMORY_TO_PERIPH
+Dma.USART1_TX.1.Instance=DMA1_Channel2
+Dma.USART1_TX.1.MemDataAlignment=DMA_MDATAALIGN_BYTE
+Dma.USART1_TX.1.MemInc=DMA_MINC_ENABLE
+Dma.USART1_TX.1.Mode=DMA_NORMAL
+Dma.USART1_TX.1.PeriphDataAlignment=DMA_PDATAALIGN_BYTE
+Dma.USART1_TX.1.PeriphInc=DMA_PINC_DISABLE
+Dma.USART1_TX.1.Priority=DMA_PRIORITY_LOW
+Dma.USART1_TX.1.RequestParameters=Instance,Direction,PeriphInc,MemInc,PeriphDataAlignment,MemDataAlignment,Mode,Priority
 File.Version=6
 GPIO.groupedBy=
 KeepUserPlacement=false
+Mcu.CPN=STM32F030K6T6
 Mcu.Family=STM32F0
-Mcu.IP0=NVIC
+Mcu.IP0=DMA
-Mcu.IP1=RCC
+Mcu.IP1=NVIC
-Mcu.IP2=SYS
+Mcu.IP2=RCC
-Mcu.IP3=TIM1
+Mcu.IP3=SYS
-Mcu.IP4=TIM3
+Mcu.IP4=TIM1
-Mcu.IP5=USART1
+Mcu.IP5=TIM3
-Mcu.IPNb=6
+Mcu.IP6=USART1
+Mcu.IPNb=7
 Mcu.Name=STM32F030K6Tx
 Mcu.Package=LQFP32
 Mcu.Pin0=PF0-OSC_IN
@@ -34,15 +57,16 @@ Mcu.UserConstants=
 Mcu.UserName=STM32F030K6Tx
 MxCube.Version=6.4.0
 MxDb.Version=DB.6.0.40
+NVIC.DMA1_Channel2_3_IRQn=true\:2\:0\:true\:false\:true\:false\:true\:true
 NVIC.ForceEnableDMAVector=true
-NVIC.HardFault_IRQn=true\:0\:0\:false\:false\:true\:false\:false
+NVIC.HardFault_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
-NVIC.NonMaskableInt_IRQn=true\:0\:0\:false\:false\:true\:false\:false
+NVIC.NonMaskableInt_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
-NVIC.PendSV_IRQn=true\:0\:0\:false\:false\:true\:false\:false
+NVIC.PendSV_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
-NVIC.SVC_IRQn=true\:0\:0\:false\:false\:true\:false\:false
+NVIC.SVC_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:true
-NVIC.SysTick_IRQn=true\:0\:0\:false\:false\:true\:false\:true
+NVIC.SysTick_IRQn=true\:0\:0\:false\:false\:true\:false\:true\:false
-NVIC.TIM1_BRK_UP_TRG_COM_IRQn=true\:0\:0\:false\:false\:true\:true\:true
+NVIC.TIM1_BRK_UP_TRG_COM_IRQn=true\:3\:0\:true\:false\:true\:true\:true\:true
-NVIC.TIM1_CC_IRQn=true\:0\:0\:false\:false\:true\:true\:true
+NVIC.TIM1_CC_IRQn=true\:3\:0\:true\:false\:true\:true\:true\:true
-NVIC.USART1_IRQn=true\:0\:0\:false\:false\:true\:true\:true
+NVIC.USART1_IRQn=true\:1\:0\:true\:false\:true\:true\:true\:true
 PA10.Locked=true
 PA10.Mode=Asynchronous
 PA10.Signal=USART1_RX
@@ -115,7 +139,7 @@ ProjectManager.StackSize=0x400
 ProjectManager.TargetToolchain=STM32CubeIDE
 ProjectManager.ToolChainLocation=
 ProjectManager.UnderRoot=true
-ProjectManager.functionlistsort=1-MX_GPIO_Init-GPIO-false-HAL-true,2-SystemClock_Config-RCC-false-HAL-false,3-MX_TIM3_Init-TIM3-false-HAL-true,4-MX_USART1_UART_Init-USART1-false-HAL-true,5-MX_TIM1_Init-TIM1-false-HAL-true
+ProjectManager.functionlistsort=1-MX_GPIO_Init-GPIO-false-HAL-true,2-SystemClock_Config-RCC-false-HAL-false,3-MX_DMA_Init-DMA-false-HAL-true,4-MX_TIM3_Init-TIM3-false-HAL-true,5-MX_USART1_UART_Init-USART1-false-HAL-true,6-MX_TIM1_Init-TIM1-false-HAL-true
 RCC.AHBFreq_Value=48000000
 RCC.APB1Freq_Value=48000000
 RCC.APB1TimFreq_Value=48000000