README.md

@@ -58,5 +58,5 @@ The user can input different commands to the ATM-system using the serial interfa
 ## References
 - [adf4351](https://github.com/dfannin/adf4351) by David Fannin was modified to be used with an ESP32 microcontroller. 
 - [TMC2130Stepper](https://github.com/teemuatlut/TMC2130Stepper) by teemuatlut was used for the TMC2130 Stepper drivers.
+- [AD5593R](https://github.com/LukasJanavicius/AD5593R-Arduino-ESP32-Library) by LukasJanavicius was used for the AD5593R ADC.
 - [ArduiTaM](https://doi.org/10.5194/mr-1-105-2020) by Jouda et al. was an inspiration for the implementation. 
-

src/ATM.ino

@@ -4,8 +4,10 @@
 #include "commands/FrequencySweep.h"
 #include "commands/TuneMatch.h"
 #include "commands/Homing.h"
+#include "commands/SetVoltages.h"
 #include "commands/MeasureReflection.h"
 
+
 #define DEBUG
 
 #include "Debug.h"
@@ -16,6 +18,7 @@ CommandManager commandManager;
 FrequencySweep frequencySweep;
 TuneMatch tuneMatch;
 Homing homing;
+SetVoltages setVoltages;
 MeasureReflection measureReflection;
 
 // Frequency Settings
@@ -23,6 +26,7 @@ MeasureReflection measureReflection;
 #define START_FREQUENCY 50000000U // 50MHz
 #define STOP_FREQUENCY 110000000  // 110MHz
 
+
 ADF4351 adf4351(SCLK_PIN, MOSI_PIN, LE_PIN, CE_PIN); // declares object PLL of type ADF4351
 
 TMC2130Stepper tuning_driver = TMC2130Stepper(EN_PIN_M1, DIR_PIN_M1, STEP_PIN_M1, CS_PIN_M1, MOSI_PIN, MISO_PIN, SCLK_PIN);
@@ -36,6 +40,7 @@ Stepper tuner = {tuning_stepper, tuning_driver, DIAG1_PIN_M1, "Tuner"};
 Stepper matcher = {matching_stepper, matching_driver, DIAG1_PIN_M2, "Matcher"};
 
 // ADC DAC Module
+
 AD5593R adac = AD5593R(23, I2C_SDA, I2C_SCL);
 bool DACs[8] = {0, 0, 1, 1, 0, 0, 0, 0};
 bool ADCs[8] = {1, 1, 0, 0, 0, 0, 0, 0};
@@ -50,6 +55,7 @@ void setup()
   commandManager.registerCommand('f', &frequencySweep);
   commandManager.registerCommand('d', &tuneMatch);
   commandManager.registerCommand('h', &homing);
+  commandManager.registerCommand('v', &setVoltages);
   commandManager.registerCommand('m', &measureReflection);
 
   pinMode(MISO_PIN, INPUT_PULLUP); // Seems to be necessary for SPI to work
@@ -116,6 +122,8 @@ void setup()
   adac.set_DAC_max_2x_Vref();
   adac.set_ADC_max_2x_Vref();
   adac.configure_DACs(DACs);
+  adac.write_DAC(VM, 0.0);
+  adac.write_DAC(VT, 0.0);
 
   adac.configure_ADCs(ADCs);
 

src/commands/FrequencySweep.h

@@ -8,6 +8,10 @@
 */
 class FrequencySweep : public Command {
 public:
+    /**
+     * @brief This function performs a frequency sweep
+     * @param input_line The input line from the serial monitor. The syntax is f<start frequency>f<stop frequency>f<frequency step>.
+    */
     void execute(String input_lne) override;
     void printResult() override;
     void printHelp() override;

src/commands/SetVoltages.cpp

@@ -0,0 +1,25 @@
+#include "Utilities.h"
+#include "SetVoltages.h"
+
+void SetVoltages::execute(String input_line){
+    char delimiter = 'v';
+    int VMIndex = input_line.indexOf(delimiter) + 1;
+    int VTIndex = input_line.indexOf(delimiter, VMIndex) + 1;
+
+    float VMVoltage = input_line.substring(VMIndex, VTIndex - 1).toFloat();
+    float VTVoltage = input_line.substring(VTIndex).toFloat();
+
+    adac.write_DAC(VM, VMVoltage);
+    adac.write_DAC(VT, VTVoltage);
+}
+
+void SetVoltages::printResult(){
+    printInfo("Voltages set successfully");
+}
+
+void SetVoltages::printHelp(){
+    Serial.println("Set voltages command");
+    Serial.println("Syntax: v<VM voltage>v<VT voltage>");
+    Serial.println("Example: v0.5v0.5");
+    Serial.println("This will set the VM and VT voltages to 0.5 V");
+}

src/commands/SetVoltages.h

@@ -0,0 +1,20 @@
+#ifndef SETVOLTAGES_H
+#define SETVOLTAGES_H
+
+#include "Command.h"
+
+/**
+ * @brief This class is used to set the voltages of the ADAC module
+*/
+class SetVoltages : public Command {
+public:
+    /**
+     * @brief This function sets the voltages of the ADAC module
+     * @param input_line The input line from the serial monitor. The syntax is v<VM voltage>v<VT voltage>.
+    */
+    void execute(String input_line) override;
+    void printResult() override;
+    void printHelp() override;
+};
+
+#endif

src/global.h

@@ -12,6 +12,12 @@
 #include "Stepper.h"
 #include "Positions.h" // Calibrated frequency positions are defined her
 
+// Global variables for the adac module
+#define MAGNITUDE 0
+#define PHASE 1
+#define VT 2
+#define VM 3
+
 // We want these objects to be accessible from all files
 extern ADF4351 adf4351;
 extern Stepper tuner;