8通道

lib/ADS1256.h

@@ -1,7 +1,7 @@
 /*
         ADS1256.h - Arduino Library for communication with Texas Instrument ADS1256 ADC
         Written by Adien Akhmad, August 2015
-	Modifified  Jan 2019 by Axel Sepulveda for ATMEGA328
+    Modifified  Jan 2019 by Axel Sepulveda for ATMEGA328
 */
 
 #ifndef ADS1256_h
@@ -9,32 +9,32 @@
 
 #if defined(__AVR_ATmega328P__) || defined(__AVR_ATmega168__)
 
-    #define pinDRDY 9
+#define pinDRDY 9
-    #define pinRST  8
+#define pinRST 8
-    #define pinCS   10 
+#define pinCS 10
-    
+
 #elif defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
 
-    #define pinDRDY 49
+#define pinDRDY 49
-    #define pinRST  48
+#define pinRST 48
-    #define pinCS   53 
+#define pinCS 53
-	
- // Contributions are welcome   
-#elif   defined(ARDUINO_ARCH_ESP8266)
-//https://esp8266-shop.com/esp8266-guide/esp8266-nodemcu-pinout/
-    #define pinDRDY D0
-    #define pinRST  D1
-    #define pinCS   D8 // D8 Hw Cs in esp8266
 
-#elif   defined(ARDUINO_ARCH_ESP32)
+// Contributions are welcome
-	// Contributions are welcome
+#elif defined(ARDUINO_ARCH_ESP8266)
-    //https://circuits4you.com/wp-content/uploads/2018/12/ESP32-Pinout.jpg
+// https://esp8266-shop.com/esp8266-guide/esp8266-nodemcu-pinout/
-    #define pinDRDY 17
+#define pinDRDY D0
-    #define pinRST  16
+#define pinRST D1
-    #define pinCS   5 //  
+#define pinCS D8 // D8 Hw Cs in esp8266
-#else 
+
-	// Contributions are welcome
+#elif defined(ARDUINO_ARCH_ESP32)
-	#warning  "Oops! Pins for your board are not defined: pinDRDY, pinRST, pinCS"
+// Contributions are welcome
+// https://circuits4you.com/wp-content/uploads/2018/12/ESP32-Pinout.jpg
+#define pinDRDY 17
+#define pinRST 16
+#define pinCS 5 //
+#else
+// Contributions are welcome
+#warning "Oops! Pins for your board are not defined: pinDRDY, pinRST, pinCS"
 #endif
 
 // ADS1256 Register address
@@ -123,34 +123,35 @@
 #include "Arduino.h"
 #include "SPI.h"
 
-class ADS1256 {
+class ADS1256
- public:
+{
-  ADS1256(float clockspdMhz, float vref, bool useresetpin);
+public:
-  void writeRegister(unsigned char reg, unsigned char wdata);
+    ADS1256(float clockspdMhz, float vref, bool useresetpin);
-  unsigned char readRegister(unsigned char reg);
+    void writeRegister(unsigned char reg, unsigned char wdata);
-  void sendCommand(unsigned char cmd);
+    unsigned char readRegister(unsigned char reg);
-  float readCurrentChannel();
+    void sendCommand(unsigned char cmd);
-  long readCurrentChannelRaw();
+    float readCurrentChannel();
-  void setConversionFactor(float val);
+    long readCurrentChannelRaw();
-  void setChannel(byte channel);
+    void setConversionFactor(float val);
-  void setChannel(byte AIP, byte AIN);
+    void setChannel(byte channel);
-  void begin(unsigned char drate, unsigned char gain, bool bufferenable);
+    void setChannel(byte AIP, byte AIN);
-  void begin();
+    void begin(unsigned char drate, unsigned char gain, bool bufferenable);
-  uint8_t getStatus();  
+    void begin();
-  void waitDRDY();
+    uint8_t getStatus();
-  boolean isDRDY();
+    void waitDRDY();
-  void setGain(uint8_t gain);
+    boolean isDRDY();
-  void readTest();
+    void setGain(uint8_t gain);
+    void readTest();
 
- private:
+private:
-  void CSON();
+    void CSON();
-  void CSOFF();
+    void CSOFF();
-  unsigned long read_uint24();
+    unsigned long read_uint24();
-  long read_int32();
+    long read_int32();
-  float read_float32();
+    float read_float32();
-  byte _pga;
+    byte _pga;
-  float _VREF;
+    float _VREF;
-  float _conversionFactor;
+    float _conversionFactor;
 };
 
 #endif

src/adc1256.cpp

@@ -9,20 +9,23 @@ void adc1256_init(void)
 {
     SPI.begin();
     sleep(0.5);
+
     SPI.beginTransaction(
         SPISettings(clockMHZ * 1000000 / 4, MSBFIRST, SPI_MODE1));
     sleep(0.5);
     adc.begin(ADS1256_DRATE_15SPS, ADS1256_GAIN_1, false);
+    adc.sendCommand(ADS1256_CMD_SDATAC);
+}
 
-    Serial.println("ADC Started");
+void adc1256_dinit(void)
-
+{
-    // Set MUX Register to AINO-AIN1 so it start doing the ADC conversion
+    adc.sendCommand(ADS1256_CMD_SDATAC);
-    adc.setChannel(3);
+    SPI.end();
+    Serial.println("ADC Stopped");
 }
 
 void adc1256_reset(void)
 {
-    adc.reset();
 }
 
 void adc1256_set_channel(uint8_t ch)
@@ -33,18 +36,23 @@ void adc1256_set_channel(uint8_t ch)
 
 float adc1256_read(void)
 {
+    adc.readRegister(ADS1256_RADD_MUX);
     return adc.readCurrentChannel();
 }
 
 void adc1256_loop(void)
 {
-    float rst;
+    for (int i = 0; i < 8; ++i)
-    adc.waitDRDY();                 // wait for DRDY to go low before changing multiplexer register
+    {
-    adc.setChannel(3);              // Set the MUX for differential between ch2 and 3
+        adc.waitDRDY();
-    rst = adc.readCurrentChannel(); // DOUT arriving here are from MUX AIN0 and AIN1
+        adc.setChannel(i);
+        Serial.print("Current Channel: ");
 
-    Serial.print(rst, 6);
+        Serial.print(i);
-    Serial.print("\n");
+        Serial.print(" MUX: ");
-
+        Serial.print(adc.readRegister(ADS1256_RADD_MUX), BIN); // Read the Input Multiplexer Control Register to see the current active channels
-    delay(1000);
+        Serial.print(" ADC Value: ");
+        Serial.print(adc.readCurrentChannel());
+        Serial.println();
+    }
 }

src/adc1256.h

@@ -3,6 +3,7 @@
 
 // Function declarations
 void adc1256_init(void);
+void adc1256_dinit(void);
 void adc1256_reset(void);
 void adc1256_loop(void);
 float adc1256_read(void);

src/board.cpp

@@ -11,4 +11,5 @@ void board_init(void)
     Serial.println("ADS1256 - 2023-12-22");
     adc1256_init();
     motor_init();
+    Serial.println("初始化完成");
 }

src/main.cpp

@@ -33,7 +33,7 @@ String fenge(String str, String fen, int index)
 
 void task_ads(void *pt)
 {
-  float array[1000]; // 存储数据
+  float array[8]; // ´æ´¢Êý¾Ý
 
   uint16_t i = 0, j = 0;
   float temp = 0;
@@ -74,16 +74,35 @@ void task_ads(void *pt)
       {
         motor_limit_on();
       }
+      else if (read_val == "rst")
+      {
+        // ESP32¸´Î»
+        ESP.restart();
+      }
       else
       {
         Serial.println("¿ªÊ¼¶ÁÈ¡ADC ...");
         String part01 = fenge(read_val, ",", 0);
         String part02 = fenge(read_val, ",", 1);
         String part03 = fenge(read_val, ",", 2);
-        if (part01 == "r")
+        if (part01 == "R")
         {
-          adc1256_set_channel(3);
+          for (i = 0; i < 8; i++)
-          Serial.printf("r,%.4f", adc1256_read());
+          {
+            adc1256_set_channel(i);
+            vTaskDelay(100); // ÑÓʱ100ms
+            array[i] = adc1256_read();
+          }
+
+          for (i = 0; i < 8; i++)
+          {
+            Serial.printf("%d\t", i);
+          }
+          Serial.println();
+          for (i = 0; i < 8; i++)
+          {
+            Serial.printf("%.4f\t", array[i]);
+          }
         }
       }
 
@@ -170,12 +189,11 @@ void setup()
 
   xTaskCreate(task_serial, "task_serial", 1024 * 4, NULL, 1, NULL);
   xTaskCreate(task_ads, "task_ads", 1024 * 8, NULL, 1, NULL);
-  xTaskCreate(task_motor, "task_motor", 1024 * 8, NULL, 1, NULL);
+  // xTaskCreate(task_motor, "task_motor", 1024 * 8, NULL, 1, NULL);
 }
 
 void loop()
 {
   // put your main code here, to run repeatedly:
-
+  vTaskDelay(3000);
-  vTaskDelay(1000);
 }