存档：

ADS1220，MISO低电平为1.65V

.vscode/settings.json

@@ -44,7 +44,8 @@
     "modbus_register_process.h": "c",
     "modbus_rtu_master.h": "c",
     "dac7811.h": "c",
-    "sig24130.h": "c"
+    "sig24130.h": "c",
+    "array": "c"
   },
   "C_Cpp.errorSquiggles": "disabled",
   "idf.pythonInstallPath": "F:\\Espressif\\tools\\idf-python\\3.11.2\\python.exe",

App/ADS1220/ads1220.c

@@ -40,24 +40,25 @@ static void ads1220_cs(cs_state_type state)
 
 static void fun_ads1220_spi1_init(void)
 {
-	hspi1.Instance = SPI1;
+	// hspi1.Instance = SPI1;
-	hspi1.Init.Mode = SPI_MODE_MASTER;
+	// hspi1.Init.Mode = SPI_MODE_MASTER;
-	hspi1.Init.Direction = SPI_DIRECTION_2LINES;
+	// hspi1.Init.Direction = SPI_DIRECTION_2LINES;
-	hspi1.Init.DataSize = SPI_DATASIZE_8BIT;
+	// hspi1.Init.DataSize = SPI_DATASIZE_8BIT;
-	hspi1.Init.CLKPolarity = SPI_POLARITY_LOW;
+	// hspi1.Init.CLKPolarity = SPI_POLARITY_LOW;
-	hspi1.Init.CLKPhase = SPI_PHASE_2EDGE;
+	// hspi1.Init.CLKPhase = SPI_PHASE_2EDGE;
-	hspi1.Init.NSS = SPI_NSS_SOFT;
+	// hspi1.Init.NSS = SPI_NSS_SOFT;
-	hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_8;
+	// hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_8;
-	hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB;
+	// hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB;
-	hspi1.Init.TIMode = SPI_TIMODE_DISABLE;
+	// hspi1.Init.TIMode = SPI_TIMODE_DISABLE;
-	hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
+	// hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
-	hspi1.Init.CRCPolynomial = 10;
+	// hspi1.Init.CRCPolynomial = 10;
-	if (HAL_SPI_Init(&hspi1) != HAL_OK)
+	// if (HAL_SPI_Init(&hspi1) != HAL_OK)
-	{
+	// {
-		Error_Handler();
+	// 	Error_Handler();
-	}
+	// }
+	MX_SPI1_Init();
 	ADS1220_CS(GPIO_PIN_RESET);
-	//DAC7811_CS(GPIO_PIN_SET);
+	DAC7811_CS(GPIO_PIN_SET);
 }
 
 // static void spi_write_byte(uint8_t data)
@@ -255,22 +256,34 @@ static void ads1220_start(void)
 //	uint8_t cmd = ADS1220_POWERDOWN_CMD;
 //	spi_write_read(&cmd, RcvData, 1);
 //}
-
+uint8_t in_data_1220[3] = {0};
+int data_1220_raw = 0;
+long data_1220 = 0;
 static void ads1220_get_conversion_data(float32 *conversionData)
 {
 	uint8_t out_data[3] = {0xff, 0xff, 0xff};
-	uint8_t in_data[3] = {0};
+	// uint8_t in_data[3] = {0};
-	long data = 0;
+	// long data = 0;
 
-	spi_write_read(out_data, in_data, 3);
+	// spi_write_read(out_data, in_data, 3);
-	data = (((long)in_data[0] << 16) + ((long)in_data[1] << 8) + (long)in_data[2]);
+	// data = (((long)in_data[0] << 16) + ((long)in_data[1] << 8) + (long)in_data[2]);
-	if (data & 0x800000)
+	// if (data & 0x800000)
+	// {
+	// 	data ^= 0x00FFFFFF;
+	// 	data += 1;
+	// }
+
+	spi_write_read(out_data, in_data_1220, 3);
+	data_1220_raw = data_1220;
+	data_1220 = (((long)in_data_1220[0] << 16) + ((long)in_data_1220[1] << 8) + (long)in_data_1220[2]);
+	if (data_1220 & 0x800000)
 	{
-		data ^= 0x00FFFFFF;
+		data_1220 ^= 0x00FFFFFF;
-		data += 1;
+		data_1220 += 1;
 	}
+
 	//mv
-	*conversionData = 1000 * (float32)data * 2.5f / 8388608;
+	*conversionData = 1000 * (float32)data_1220 * 2.5f / 8388608;
 }
 
 //static void ads1220_get_rtd_conversion_data_calibrated(volatile long *code)
@@ -299,7 +312,8 @@ void ads1220_operation(uint8_t channel, float32 *data_pv)
 	}
 
 	ads1220_cs(CS_L);
-	vTaskDelay(10);
+	//vTaskDelay(10);
+	HAL_Delay(10);
 	// if (channel == CH2_OUT_CUR)
 	// {
 	// 	ads1220_reset();
@@ -324,24 +338,28 @@ void ads1220_operation(uint8_t channel, float32 *data_pv)
 	// else if (channel == CH10_IN_TC)
 	// {
 		ads1220_reset();
-		vTaskDelay(5);
+		HAL_Delay(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
 			ADS1220_CONVERSION_SINGLE_SHOT, // 转换模式*
 			ADS1220_DATA_RATE_45SPS,		// 数据速率*
-			ADS1220_GAIN_1,					// 增益配置*
+			ADS1220_GAIN_8,					// 增益配置*
 			ADS1220_PGA_BYPASS,				// 禁止/启用可编程增益放大器
 			ADS1220_IDAC1_DISABLED,			// 选择IDAC1将路由到的通道
 			ADS1220_IDAC2_DISABLED,			// 选择IDAC2将路由到的通道
 			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);
 		ads1220_start();
-		vTaskDelay(30);
+		HAL_Delay(30);
+		//vTaskDelay(30);
 		ads1220_get_conversion_data(data_pv);
 	// }
 	ads1220_cs(CS_H);
-	vTaskDelay(5);
+	//vTaskDelay(5);
+	HAL_Delay(5);
 }

Core/Inc/gpio.h

@@ -166,7 +166,7 @@ extern "C" {
 
 #define ADS1220_CS(CS) HAL_GPIO_WritePin(ADS1220_CS_GPIO_Port, ADS1220_CS_Pin, CS)
 
-//#define DAC7811_CS(CS) HAL_GPIO_WritePin(DAC7811_CS_GPIO_Port, DAC7811_CS_Pin, CS)
+#define DAC7811_CS(CS) HAL_GPIO_WritePin(DAC7811_SYNC_GPIO_Port, DAC7811_SYNC_Pin, CS)
 
 /* USER CODE END Private defines */
 

MDK-ARM/signal_generator.uvoptx

@@ -270,6 +270,31 @@
           <WinNumber>1</WinNumber>
           <ItemText>cali_paras</ItemText>
         </Ww>
+        <Ww>
+          <count>23</count>
+          <WinNumber>1</WinNumber>
+          <ItemText>in_data_1220</ItemText>
+        </Ww>
+        <Ww>
+          <count>24</count>
+          <WinNumber>1</WinNumber>
+          <ItemText>data_1220_raw</ItemText>
+        </Ww>
+        <Ww>
+          <count>25</count>
+          <WinNumber>1</WinNumber>
+          <ItemText>data_1220</ItemText>
+        </Ww>
+        <Ww>
+          <count>26</count>
+          <WinNumber>1</WinNumber>
+          <ItemText>ads1220spi_status_watch</ItemText>
+        </Ww>
+        <Ww>
+          <count>27</count>
+          <WinNumber>1</WinNumber>
+          <ItemText>RcvData</ItemText>
+        </Ww>
       </WatchWindow1>
       <WatchWindow2>
         <Ww>
@@ -292,7 +317,7 @@
       <DebugFlag>
         <trace>0</trace>
         <periodic>1</periodic>
-        <aLwin>1</aLwin>
+        <aLwin>0</aLwin>
         <aCover>0</aCover>
         <aSer1>0</aSer1>
         <aSer2>0</aSer2>

MDK-ARM/signal_generator.uvprojx

@@ -315,7 +315,7 @@
           </ArmAdsMisc>
           <Cads>
             <interw>1</interw>
-            <Optim>3</Optim>
+            <Optim>1</Optim>
             <oTime>1</oTime>
             <SplitLS>0</SplitLS>
             <OneElfS>1</OneElfS>

signal_generator.ioc

@@ -659,7 +659,8 @@ SPI1.BaudRatePrescaler=SPI_BAUDRATEPRESCALER_64
 SPI1.CLKPhase=SPI_PHASE_2EDGE
 SPI1.CalculateBaudRate=648.0 KBits/s
 SPI1.Direction=SPI_DIRECTION_2LINES
-SPI1.IPParameters=VirtualType,Mode,Direction,CalculateBaudRate,CLKPhase,BaudRatePrescaler
+SPI1.FirstBit=SPI_FIRSTBIT_MSB
+SPI1.IPParameters=VirtualType,Mode,Direction,CalculateBaudRate,CLKPhase,BaudRatePrescaler,FirstBit
 SPI1.Mode=SPI_MODE_MASTER
 SPI1.VirtualType=VM_MASTER
 SPI2.BaudRatePrescaler=SPI_BAUDRATEPRESCALER_32