更新：

1、电阻输出功能调试完成；
2、问题修复：ads1220和dac7811的SPI配置不同，应该使用不同的初始化程序；
3、电阻输出暂时使用了粗略的校准；

App/ADS1220/ads1220.c

@@ -40,6 +40,7 @@ static void ads1220_cs(cs_state_type state)
 
 static void fun_ads1220_spi1_init(void)
 {
+	// 空闲电平为低，下降沿读取，SPI数据8位
 	// hspi1.Instance = SPI1;
 	// hspi1.Init.Mode = SPI_MODE_MASTER;
 	// hspi1.Init.Direction = SPI_DIRECTION_2LINES;
@@ -314,8 +315,8 @@ void ads1220_operation(uint8_t channel, float32 *data_pv)
 	}
 
 	ads1220_cs(CS_L);
-	//vTaskDelay(10);
+	vTaskDelay(10);
-	HAL_Delay(10);
+	//HAL_Delay(10);
 	// if (channel == CH2_OUT_CUR)
 	// {
 	// 	ads1220_reset();
@@ -340,8 +341,8 @@ void ads1220_operation(uint8_t channel, float32 *data_pv)
 	// else if (channel == CH10_IN_TC)
 	// {
 		ads1220_reset();
-		HAL_Delay(5);
+		//HAL_Delay(5);
-		//vTaskDelay(5);
+		vTaskDelay(5);
 		setup_ads1220(
 			ADS1220_MUX_AIN0_AIN1,			// 输入多路复用器配置
 			ADS1220_OP_MODE_NORMAL,			// 工作模式选择
@@ -354,14 +355,14 @@ void ads1220_operation(uint8_t channel, float32 *data_pv)
 			ADS1220_IDAC_CURRENT_OFF,		// IDAC电流设置
 			ADS1220_VREF_EXT_REF0_PINS,		// 基准电压选择*
 			ADS1220_TEMP_SENSOR_OFF);		// 温度传感器
-		//vTaskDelay(5);
+		vTaskDelay(5);
-		HAL_Delay(5);
+		//HAL_Delay(5);
 		ads1220_start();
-		HAL_Delay(30);
+		//HAL_Delay(30);
-		//vTaskDelay(30);
+		vTaskDelay(30);
 		ads1220_get_conversion_data(data_pv);
 	// }
 	ads1220_cs(CS_H);
-	//vTaskDelay(5);
+	vTaskDelay(5);
-	HAL_Delay(5);
+	//HAL_Delay(5);
 }

App/DAC7811/dac7811.c

@@ -10,79 +10,92 @@ BOOL dac7811_spi_init_flag = FALSE;
 
 void fun_dac7811_spi1_init()
 {
-    // hspi1.Instance = SPI1;
+  //空闲电平为高，下降沿读取/写入，SPI数据16位
-    // hspi1.Init.Mode = SPI_MODE_MASTER;
+  hspi1.Instance = SPI1;
-    // hspi1.Init.Direction = SPI_DIRECTION_2LINES;
+  hspi1.Init.Mode = SPI_MODE_MASTER;
-    // hspi1.Init.DataSize = SPI_DATASIZE_16BIT;
+  hspi1.Init.Direction = SPI_DIRECTION_2LINES;
-    // hspi1.Init.CLKPolarity = SPI_POLARITY_HIGH;
+  hspi1.Init.DataSize = SPI_DATASIZE_16BIT;
-    // hspi1.Init.CLKPhase = SPI_PHASE_1EDGE;
+  hspi1.Init.CLKPolarity = SPI_POLARITY_HIGH;
-    // hspi1.Init.NSS = SPI_NSS_SOFT;
+  hspi1.Init.CLKPhase = SPI_PHASE_2EDGE;
-    // hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_8;
+  hspi1.Init.NSS = SPI_NSS_SOFT;
-    // hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB;
+  hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_8;
-    // hspi1.Init.TIMode = SPI_TIMODE_DISABLE;
+  hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB;
-    // hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
+  hspi1.Init.TIMode = SPI_TIMODE_DISABLE;
-    // hspi1.Init.CRCPolynomial = 10;
+  hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
-    // if (HAL_SPI_Init(&hspi1) != HAL_OK)
+  hspi1.Init.CRCPolynomial = 10;
-    // {
+  if (HAL_SPI_Init(&hspi1) != HAL_OK)
-    //     Error_Handler();
+  {
-    // }
+      Error_Handler();
-    MX_SPI1_Init();
+  }
-    ADS1220_CS(GPIO_PIN_SET);
+
-    DAC7811_CS(GPIO_PIN_RESET);
+  ADS1220_CS(GPIO_PIN_SET);
+  DAC7811_CS(GPIO_PIN_RESET);
 }
 
 void fun_dac7811_operate(float32 *data_sv)
 {
-    if (data_sv == NULL) return;
+  if (data_sv == NULL) return;
 
-    if(*data_sv > 4000)
+  if(*data_sv > 4000)
-    {
+  {
-        *data_sv = 4000;
+      *data_sv = 4000;
-    }
+  }
-    else if (*data_sv < 0)
+  else if (*data_sv < 0)
-    {
+  {
-        *data_sv = 0;
+      *data_sv = 0;
-    }
+  }
 
-    float32 temp = *data_sv;
+  float32 temp = *data_sv;
-    /**********在此处进行电阻输出（Ω）校准，temp为目标值**********/
+  /**********在此处进行电阻输出（Ω）校准，temp为目标值**********/
-    temp = calibrate_res_ohm_out(temp);
+  temp = calibrate_res_ohm_out(temp);
 
-    if(temp > 4000)
+  if(temp > 4000)
-    {
+  {
-        temp = 4000;
+      temp = 4000;
-    }
+  }
-    else if (temp < 0)
+  else if (temp < 0)
-    {
+  {
-        temp = 0;
+      temp = 0;
-    }
+  }
-    mux_signal.sv_calibrated = temp;
+  mux_signal.sv_calibrated = temp;
-    /**********************************************************/
+  /**********************************************************/
 
-    uint16_t reg_data = (uint16_t)(temp);
+  //实际输出与设定值之间存在倍数关系
-    reg_data |= 0x1000;
+  if(temp <= 1000)
-    reg_data &= 0x1fff;
+  {
+    temp /= 1.4f;
+  }
+  else if(temp <= 2000)
+  {
+    temp /= 1.2f;
+  }
+  else if(temp <= 3000)
+  {
+    temp /= 1.1f;
+  }
+
+  uint16_t reg_data = (uint16_t)(temp);
+  reg_data |= 0x1000;
+  reg_data &= 0x1fff;
+
+  if (dac7811_spi_init_flag == FALSE)
+  {
+      fun_dac7811_spi1_init();
+      ads1220_spi_init_flag = FALSE;
+      dac7811_spi_init_flag = TRUE;
+      vTaskDelay(10);
+  }
+
+  DAC7811_CS(GPIO_PIN_RESET);
+  HAL_SPI_Transmit(&hspi1, (uint8_t *)(&reg_data), 1, 1000);
+  DAC7811_CS(GPIO_PIN_SET);
 
-    if (dac7811_spi_init_flag == FALSE)
-    {
-        fun_dac7811_spi1_init();
-        ads1220_spi_init_flag = FALSE;
-        dac7811_spi_init_flag = TRUE;
-    }
-    else
-    {
-      DAC7811_CS(GPIO_PIN_RESET);
-      vTaskDelay(100);
-      HAL_SPI_Transmit(&hspi1, (uint8_t *)(&reg_data), 1, 1000);
-      vTaskDelay(100);
-      DAC7811_CS(GPIO_PIN_SET);
-    }
 }
 
 uint8_t resohm_out_cal_enable = 0;
 float32 calibrate_res_ohm_out(float32 raw)
 {
-    float result = 0;
+  float result = 0;
 
   switch (resohm_out_cal_enable)
   {

App/HART/hart.h

@@ -6,6 +6,12 @@
 #define RTS_ON GPIO_PIN_RESET
 #define RTS_OFF GPIO_PIN_SET
 
+#define HART_24V_ENABLE HAL_GPIO_WritePin(RS_EN_GPIO_Port, RS_EN_Pin, GPIO_PIN_RESET)
+#define HART_24V_DISABLE HAL_GPIO_WritePin(RS_EN_GPIO_Port, RS_EN_Pin, GPIO_PIN_SET)
+
+#define HART_250OHM_ENABLE HAL_GPIO_WritePin(RP_EN_GPIO_Port, RP_EN_Pin, GPIO_PIN_RESET)
+#define HART_250OHM_DISABLE HAL_GPIO_WritePin(RP_EN_GPIO_Port, RP_EN_Pin, GPIO_PIN_SET)
+
 void hart_send(UART_HandleTypeDef *huart, uint8_t *data);
 void hart_communicate(st_scom *scom);
 

App/MUX_SIGNAL/mux_signal.c

@@ -280,8 +280,8 @@ void mux_signal_switch(st_mux_signal *mux_signal)
         break;
 
         case CH4_OUT_RES:
-            //if(mux_set_flag) fun_dac7811_operate(&mux_signal->data_sv);         //设定
+            if(mux_set_flag) fun_dac7811_operate(&mux_signal->data_sv);         //设定
-            fun_dac7811_operate(&mux_signal->data_sv);
+            //fun_dac7811_operate(&mux_signal->data_sv);
         break;
 
         case CH5_EMPTY:

Core/Src/freertos.c

@@ -217,32 +217,57 @@ void start_task_hart(void const * argument)
   /* Infinite loop */
   for (;;)
   {
-    //该任务用于设置HART芯片所需频率、驱动验证
+    if( (fre_set_hart != 460800)&&(tabdata.hart_enable) )
-    if(tabdata.hart_enable == 1)
     {
-      if(fre_set_hart != 460800)
+      fre_set_hart = 460800;
-      {
+      frequence_output(fre_set_hart, 50, PWM_HART);
-        fre_set_hart = 460800;
-        frequence_output(fre_set_hart, 50, PWM_HART);
-      }
-
-      //驱动验证，DEVICE <--- HART ---> SIG
-      if(hart_test == 1)
-      {
-        hart_test = 0;
-
-        scom1_hart.tx_flag = TRUE;
-        hart_communicate(&scom1_hart);
-      }
     }
-    else
+
+    switch (tabdata.hart_enable)
     {
-      if(fre_set_hart != 0)
+      case HART_DISABLE:
       {
-        fre_set_hart = 0;
+        if(fre_set_hart != 0)
-        frequence_output(fre_set_hart, 50, PWM_HART);
+        {
+          fre_set_hart = 0;
+          frequence_output(fre_set_hart, 50, PWM_HART);
+        }
       }
+      break;
+
+      case HART_LISTEN:
+      {
+        HART_24V_DISABLE;
+        HART_250OHM_DISABLE;
+      }
+      break;
+
+      case HART_INTERNAL_24V:
+      {
+        HART_24V_ENABLE;
+        HART_250OHM_DISABLE;
+      }
+      break;
+
+      case HART_INTERNAL_250OHM:
+      {
+        HART_250OHM_ENABLE;
+        HART_24V_DISABLE;
+      }
+      break;
+    
+      default:
+      break;
     }
+
+    //驱动验证，DEVICE <--- HART ---> SIG
+    // if(hart_test == 1)
+    // {
+    //   hart_test = 0;
+
+    //   scom1_hart.tx_flag = TRUE;
+    //   hart_communicate(&scom1_hart);
+    // }
    
     system_sts.hart_stack_consume = HART_STACK_SIZE_WORD - uxTaskGetStackHighWaterMark(NULL);
     osDelay(HART_TASK_PERIOD);