Added the template test files I made before.

+Mocking of ADC.
+Mocking of timer
+Mocking of Register editing.
+tests for all the above

inc/RegEdit.h

@@ -0,0 +1,71 @@
+/**
+ * @brief Module/Interface for editing AVR registers 
+ * @details This file is an interface to AVR registers or the avr/io.h
+ * @author Jake G 
+ * @date 2024 
+ * @copyright None
+ * @file RegEdit.h
+ */
+
+#ifndef REGEDIT_H
+#define REGEDIT_H
+
+#include <stdint.h>
+#include <stdbool.h>
+
+
+/**
+ * @brief Sets the value of the register to 0xFF.
+ * @param reg A pointer to a register 
+ */
+void RegEdit_SetRegister(void *reg);
+
+/**
+ * @brief Sets the value of the register to 0x00. 
+ * @param reg A pointer to a register 
+ */
+void RegEdit_ClearRegister(void *reg);
+
+/**
+ * @brief Sets a single bit in the register.
+ * @param reg A pointer to a register 
+ * @param The bit's index or number in the register
+ */
+void RegEdit_SetBit(void *reg, uint8_t bit_num);
+
+/**
+ * @brief Clears a single bit in the register.
+ * @param reg A pointer to a register 
+ * @param The bit's index or number in the register
+ */
+void RegEdit_ClearBit(void *reg, uint8_t bit_num);
+
+/**
+ * @brief Checks if a single bit is set in the register.
+ * @param reg A pointer to a register 
+ * @param The bit's index or number in the register
+ */
+bool RegEdit_IsBitSet(void *reg, uint8_t bit_num);
+
+/**
+ * @brief Preforms logical OR Equals with the passed num.
+ * @param reg A pointer to a register 
+ * @param The bit's index or number in the register
+ */
+void RegEdit_OR_Num(void *reg, uint8_t num);
+
+/**
+ * @brief Preforms logical AND Equals with the passed num.
+ * @param reg A pointer to a register 
+ * @param The bit's index or number in the register
+ */
+void RegEdit_AND_Num(void *reg, uint8_t num);
+
+/**
+ * @brief Sets the register to the passed number value.
+ * @param reg A pointer to a register 
+ * @param The bit's index or number in the register
+ */
+void RegEdit_SetNum(void *reg, uint8_t num);
+
+#endif //REGEDIT_H

inc/config.h

@@ -0,0 +1,60 @@
+/**
+ * @file config.h 
+ * @author Jake G
+ * @date 15 June 2024
+ * @brief File contains the project configuration values 
+ *
+ * This file contains the user changable parameters. Most the values are 
+ * constants that will change the behavior of the system.
+ *
+ * For these changes to take affect you must recompile/rebuild the project 
+ * after you have changed the values.
+ */
+
+#ifndef CONFIG_H
+#define CONFIG_H
+
+#include <stdint.h>
+
+#define ADC_LOAD1 4
+#define ADC_LOAD2 5
+#define ADC_LOAD3 6
+
+/**
+ * @brief Positive Zero Crossing Trigger Value
+ * The 10 bit value at which the program triggers the ISR to handle 
+ * the zero crossing event.
+ *
+ * You can adjust this to change when the program will start the timer.
+ */
+const uint16_t TriggerValue = 512; 
+
+
+/**
+ * @brief Triac Gate Pulse Quantity
+ *
+ * Contains the number of pulses that the micro-controller will send to the 
+ * gates of the triac.
+ *
+ * This number should match the quantity of timings inside the pulse/duration
+ * array.
+ */
+const int GatePulsesQty = 5;
+
+/**
+ * @brief Gate Pulses Array
+ *
+ * The gate pulses array holds the duration of pulses in microseconds for the
+ * triacs gates. The length of the array must be matched with the 
+ * GatePulsesQuantity parameter.
+ */
+const uint16_t GatePulses[5] = {250, 500, 750, 1000, 1250};
+
+/**
+ * @brief The time constant.
+ */
+const double Tau = 8250;
+
+
+
+#endif //CONFIG_H

src/ADC/ADC.c

@@ -0,0 +1,99 @@
+/*
+ * Author: username
+ * Date: 2024
+ * filename: ADC.c
+ * description: module_purpose
+ */
+
+#ifndef __AVR_ATtiny404__
+#define __AVR_ATtiny404__
+#endif
+
+#include "ADC.h"
+#include "RegEdit.h"
+#include "avr/io.h"
+
+#define MAX_PIN_NUM 7
+
+static bool IsInvalidPin(uint8_t pin_num) {
+  if (pin_num > MAX_PIN_NUM) {
+    return true;
+  }
+  return false;
+}
+
+void ADC_Setup(void) {
+  // Clears control register A for ADC0
+  RegEdit_SetNum((void *)&ADC0.CTRLA, 0x00);
+
+  // Sets The sample accumulation number to 32.
+  RegEdit_SetNum((void *)&ADC0.CTRLB, 0x5);
+
+  // Sets the voltage reference to VDD or VCC.
+  RegEdit_SetBit((void *)&ADC0.CTRLC, 4);
+
+  // Sets the pre-scalar for the adc sample rate.
+  RegEdit_SetBit((void *)&ADC0.CTRLC, 2);
+
+  // Setup an Initalization delay.
+  RegEdit_OR_Num((void *)&ADC0.CTRLD, (2 << 5));
+
+  // Set the bit for ADC variation during readings.
+  RegEdit_SetBit((void *)&ADC0.CTRLD, 4);
+}
+
+void ADC_Init(uint8_t pin_num) {
+
+  if (IsInvalidPin(pin_num)) {
+    return;
+  }
+
+  // set the direction to input
+  RegEdit_ClearBit((void *)&PORTA.DIR, pin_num);
+
+  // Disable the pull-up resistor
+  RegEdit_ClearBit((void *)&PORTA.OUT, pin_num);
+
+  // Disable input buffer
+  // We do some kinda nasty address addition but it saves
+  // memory and means we don't need a switch statment.
+  RegEdit_SetBit((void *)(&PORTA.PIN0CTRL) + pin_num,
+                 PORT_ISC_INPUT_DISABLE_gc);
+}
+
+void ADC_Enable(void) {
+  // Set the enable bit in the CTRLA register
+  RegEdit_SetBit((void *)&ADC0.CTRLA, 0);
+}
+
+void ADC_Disable() {
+  // Clear the enable ADC flag
+  RegEdit_ClearBit((void *)&ADC0.CTRLA, 0);
+}
+
+void ADC_SetPin(uint8_t pin_num) {
+  if (IsInvalidPin(pin_num)) {
+    return;
+  }
+  RegEdit_ClearRegister((void *)&ADC0.MUXPOS);
+  RegEdit_SetNum((void *)&ADC0.MUXPOS, pin_num);
+}
+
+uint16_t ADC_ReadValue_Impl(uint8_t pin_num) {
+  RegEdit_SetNum((void *)&ADC0.COMMAND, ADC_STCONV_bm);
+
+  /* Wait until ADC conversion done */
+  while (!(ADC0.INTFLAGS & ADC_RESRDY_bm)) {
+    ;
+  }
+
+  /* Clear the interrupt flag by writing 1: */
+  ADC0.INTFLAGS = ADC_RESRDY_bm;
+
+  uint16_t adc_val = (uint16_t)ADC0.RES;
+  adc_val = adc_val >> 5;
+  return adc_val;
+}
+
+// Set the default for the function pointer.
+uint16_t (*ADC_ReadValue)(uint8_t pin_num) = ADC_ReadValue_Impl;

src/ADC/ADC.h

@@ -0,0 +1,68 @@
+/**
+ * @brief Interface to the AVR ADC hardware.
+ * @details This file is...
+ * @author Jake G
+ * @date 2024
+ * @copyright None
+ * @file ADC.h
+ */
+
+#ifndef ADC_H
+#define ADC_H
+
+#include <stdbool.h>
+#include <stdint.h>
+
+/**
+ * @brief Initializes the AVR hardware in order to accept
+ * Input for ADC usage.
+ * @param pin_num The number of the pin 0-7 you are initializing.
+ *
+ * This function only makes use of PORTA by default. It sets the direction
+ * register to input, disables the pull-up resistor and also diables interrupts
+ * alongside the input buffer(digital).
+ *
+ * This in turn helps reduce noise when using the ADC.
+ *
+ */
+void ADC_Init(uint8_t pin_num);
+
+/**
+ * @brief Enables the ADC
+ */
+void ADC_Enable(void);
+
+/**
+ * @brief Disables the ADC
+ */
+void ADC_Disable();
+
+/**
+ * @brief Reads ADC value into variable
+ *
+ * @param pin_num The bin number of the ADC pin being read.
+ *
+ * This function depends on the ADC already being initialized and enabled
+ * before being called.
+ */
+extern uint16_t (*ADC_ReadValue)(uint8_t pin_num);
+
+/**
+ * @brief Sets up the ADC
+ *
+ * This function sets up the ADC to take and accumulate 32 samples. It also
+ * sets the inital delay to 32 ADC clock cycles, and sets the VREF to VDD or
+ * VCC.
+ *
+ * This function should only need to be called once.
+ */
+void ADC_Setup(void);
+
+/**
+ * @brief Sets the pin used in the MUX for ADC0.
+ *
+ * @param pin_num The number of the pin in Port A.
+ */
+void ADC_SetPin(uint8_t pin_num);
+
+#endif // ADC_H

src/ADC/CMakeLists.txt

@@ -0,0 +1,17 @@
+add_library(ADC STATIC
+    ADC.c
+)
+target_include_directories(ADC PUBLIC
+    ${CMAKE_CURRENT_LIST_DIR}
+)
+
+if(UNIT_TESTING)
+    target_link_libraries(ADC
+        MockRegEdit
+    )
+
+else()
+    target_link_libraries(ADC
+        RegEdit 
+    )
+endif()

src/CMakeLists.txt

@@ -2,6 +2,11 @@ add_executable(${PROJECT_NAME}
     main.c    
 )
 
+target_link_libraries(${PROJECT_NAME}
+    RegEdit
+    timer
+)
+
 # Ensure the build rules are defined
 set_target_properties(${PROJECT_NAME} PROPERTIES SUFFIX ".elf")
 
@@ -38,3 +43,10 @@ add_custom_target(upload ALL
     DEPENDS hex
 )
 endif()
+
+
+add_subdirectory(RegEdit)
+add_subdirectory(timer)
+add_subdirectory(SuperLoop)
+add_subdirectory(ADC)
+add_subdirectory(load)

src/RegEdit/CMakeLists.txt

@@ -0,0 +1,7 @@
+add_library(RegEdit STATIC
+    RegEdit.c
+)
+
+target_include_directories(RegEdit PUBLIC
+    ${CMAKE_CURRENT_LIST_DIR}
+)

src/RegEdit/RegEdit.c

@@ -0,0 +1,53 @@
+/*
+ * Author: username
+ * Date: 2024
+ * filename: RegEdit.c
+ * description: module_purpose
+ */
+
+#include "RegEdit.h"
+
+void RegEdit_SetRegister(void *reg) {
+  uint8_t *reg_ptr = (uint8_t *)reg;
+  *reg_ptr = 0xFF;
+}
+
+void RegEdit_ClearRegister(void *reg) {
+  uint8_t *reg_ptr = (uint8_t *)reg;
+  *reg_ptr = 0x00;
+}
+
+void RegEdit_SetBit(void *reg, uint8_t bit_num) {
+  uint8_t *reg_ptr = (uint8_t *)reg;
+  *reg_ptr |= (uint8_t)(1 << bit_num);
+}
+
+void RegEdit_ClearBit(void *reg, uint8_t bit_num) {
+  uint8_t *reg_ptr = (uint8_t *)reg;
+  *reg_ptr &= ~(1 << bit_num);
+}
+
+bool RegEdit_IsBitSet(void *reg, uint8_t bit_num) {
+  uint8_t *reg_ptr = (uint8_t *)reg;
+  return *reg_ptr & (1 << bit_num);
+}
+
+void RegEdit_OR_Num(void *reg, uint8_t num) {
+  uint8_t *reg_ptr = (uint8_t *)reg;
+  *reg_ptr |= num;
+}
+
+void RegEdit_AND_Num(void *reg, uint8_t num) {
+  uint8_t *reg_ptr = (uint8_t *)reg;
+  *reg_ptr &= num;
+}
+
+void RegEdit_SetNum(void *reg, uint8_t num) {
+  uint8_t *reg_ptr = (uint8_t *)reg;
+  *reg_ptr = num;
+}
+
+uint8_t RegEdit_ReadReg(void *reg) {
+  uint8_t *reg_ptr = (uint8_t *)reg;
+  return *reg_ptr;
+}

src/RegEdit/RegEdit.h

@@ -0,0 +1,77 @@
+/**
+ * @brief Register Editing Interface
+ * @details This file is an abstraction to all the bitwise operations
+ * @author Jake G
+ * @date 2024
+ * @copyright None
+ * @file MockRegEdit.h
+ */
+
+#ifndef REGEDIT_H
+#define REGEDIT_H
+
+#include <stdbool.h>
+#include <stdint.h>
+
+/**
+ *
+ * @param reg The register address.
+ */
+void RegEdit_SetRegister(void *reg);
+
+/**
+ *
+ * @param reg The register address.
+ */
+void RegEdit_ClearRegister(void *reg);
+
+/**
+ *
+ * @param reg The register address.
+ * @param bit_num The bit location.
+ */
+void RegEdit_SetBit(void *reg, uint8_t bit_num);
+
+/**
+ *
+ * @param reg The register address.
+ * @param bit_num The bit location.
+ */
+void RegEdit_ClearBit(void *reg, uint8_t bit_num);
+
+/**
+ *
+ * @param reg The register address.
+ * @param bit_num The bit location.
+ * @return
+ */
+bool RegEdit_IsBitSet(void *reg, uint8_t bit_num);
+
+/**
+ *
+ * @param reg The register address.
+ * @param num The bit location.
+ */
+void RegEdit_OR_Num(void *reg, uint8_t num);
+
+/**
+ *
+ * @param reg The register address.
+ * @param num The bit location.
+ */
+void RegEdit_AND_Num(void *reg, uint8_t num);
+
+/**
+ *
+ * @param reg The register address.
+ * @param num The bit location.
+ */
+void RegEdit_SetNum(void *reg, uint8_t num);
+
+/**
+ *
+ * @param reg The register address.
+ */
+uint8_t RegEdit_ReadReg(void *reg);
+
+#endif // REGEDIT_H

src/SuperLoop/CMakeLists.txt

@@ -0,0 +1,7 @@
+add_library(SuperLoop STATIC
+    SuperLoop.c
+)
+
+target_include_directories(SuperLoop PUBLIC
+    ${CMAKE_CURRENT_LIST_DIR}
+)

src/SuperLoop/SuperLoop.c

@@ -0,0 +1,40 @@
+/*
+ * Author: Jake G
+ * Date: 2024-09-01
+ * filename: SuperLoop.c
+ * description: The RT super loop.
+ */
+
+#include "SuperLoop.h"
+#include <stdbool.h>
+
+static uint8_t iteration_target = 0;
+
+/*
+ * ####################################
+ * PRIVATE FUNCTIONS
+ * ####################################
+ */
+
+static bool continue_looping(uint8_t idx) {
+  if (iteration_target == 0 || idx <= iteration_target) {
+    return true;
+  }
+  return false;
+}
+
+/*
+ * ####################################
+ * PUBLIC FUNCTIONS
+ * ####################################
+ */
+
+void SuperLoop_SetIterations(uint8_t n) { iteration_target = n; }
+
+uint8_t SuperLoop_Run(void) {
+  uint8_t i;
+  for (i = 0; continue_looping(i); i++) {
+    continue;
+  }
+  return i - 1;
+}

src/SuperLoop/SuperLoop.h

@@ -0,0 +1,29 @@
+/**
+ * @brief The Systems superloop that handles all the tasks.
+ * @details This file is the main program's logic that loops endlessly
+ * @author Jake G
+ * @date 2024-09-01
+ * @copyright None
+ * @file SUPERLOOP.h
+ */
+
+#ifndef SUPERLOOP
+#define SUPERLOOP
+
+#include <stdint.h>
+
+/**
+ * A function that allows the user to set the number of loop iterations for
+ * testing purposes.
+ * @param n The number of times it will loop before breaking. (Zero is endless)
+ */
+void SuperLoop_SetIterations(uint8_t n);
+
+/**
+ * The super loop; it runs the main code in a loop endlessly unless the number
+ * of iterations are set.
+ * @return The number of loops completed in iteration mode.
+ */
+uint8_t SuperLoop_Run(void);
+
+#endif // SUPERLOOP

src/timer/CMakeLists.txt

@@ -0,0 +1,17 @@
+add_library(timer STATIC
+    timer.c
+)
+
+target_include_directories(timer PUBLIC
+    ${CMAKE_CURRENT_LIST_DIR}
+)
+
+if(UNIT_TESTING)
+    target_link_libraries(timer
+        MockRegEdit
+    )
+else()
+    target_link_libraries(timer
+        RegEdit 
+    )
+endif()

src/timer/timer.c

@@ -0,0 +1,75 @@
+/**
+ * @brief PUT_TEXT_HERE
+ * @details This file is...
+ * @author username
+ * @date todays_date
+ * @copyright None
+ * @file module_name.h
+ */
+
+// Used during testing and for the LSP
+#ifndef __AVR_ATtiny404__
+#define __AVR_ATtiny404__
+#endif
+
+#include "timer.h"
+#include <avr/interrupt.h>
+#include <avr/io.h>
+
+#define FCLK_PER 3333333UL
+#define DIV8 0x3
+#define PERIOD_VALUE 40
+
+// These are expiremential found values that account for overhead
+// for smaller durations.
+#define OVERHEAD_ONE 226
+#define OVERHEAD_TWO 151
+#define OVERHEAD_THREE 75
+
+static uint16_t overflow_count = 0;
+
+uint16_t Timer_GetOverflowCount(void) { return overflow_count; }
+
+void Timer_Start(void) {
+  // clear the overflow event count
+  overflow_count = 0;
+
+  sei();
+
+  // Enable the overflow Interrupt.
+  TCA0.SINGLE.INTCTRL = TCA_SINGLE_OVF_bm;
+
+  // set Normal mode.
+  TCA0.SINGLE.CTRLB = TCA_SINGLE_WGMODE_NORMAL_gc;
+
+  // Disable event counting.
+  TCA0.SINGLE.EVCTRL &= ~(TCA_SINGLE_CNTEI_bm);
+
+  // Set the Period Value
+  TCA0.SINGLE.PER = PERIOD_VALUE;
+
+  // set the Timer to divide FCLK_PER by 8.
+  TCA0.SINGLE.CTRLA |= (DIV8 << 1);
+
+  // Enable the Timer
+  TCA0.SINGLE.CTRLA |= TCA_SINGLE_ENABLE_bm;
+}
+
+void Timer_Disable(void) {
+  cli();
+  TCA0.SINGLE.CTRLA &= ~(1 << 0);
+  TCA0.SINGLE.CTRLESET |= ((0x3) << 2);
+}
+
+// Triggered on the overflow of the timer A's counter.
+ISR(TCA0_OVF_vect) {
+  cli();
+
+  // Increment the Overflow counter.
+  overflow_count += 1;
+
+  // The interrupt flag has to be cleared manually
+  TCA0.SINGLE.INTFLAGS = TCA_SINGLE_OVF_bm;
+
+  sei();
+}

src/timer/timer.h

@@ -0,0 +1,32 @@
+/**
+ * @brief The AVR Timer module
+ * @details This file is used to interact with the hardware timers.
+ * @author Jake G
+ * @date 2024
+ * @copyright None
+ * @file TIMER.h
+ */
+
+#ifndef TIMER
+#define TIMER
+
+#include "inttypes.h"
+#include "stdbool.h"
+
+/**
+ * Starts up the AVR timer using a 10KHz frequency
+ */
+void Timer_Start(void);
+
+/**
+ * Stops the AVR timer.
+ */
+void Timer_Stop(void);
+
+/**
+ * Get the number of times the timer's counter setup for 10kHz overflowed.
+ * @return A uint16_t holding the number of counter overflow events.
+ */
+uint16_t Timer_GetOverflowCount(void);
+
+#endif // TIMER

tests/ADC/CMakeLists.txt

@@ -0,0 +1,17 @@
+# TEST_RUNNER
+add_library(test_ADC
+    test_ADC.cpp    
+)
+
+target_link_libraries(test_ADC
+    ${CPPUTEST_LIBRARIES}/libCppUTest.a
+    ${CPPUTEST_LIBRARIES}/libCppUTestExt.a
+    ADC
+    MockRegEdit
+)
+
+#Needed for the tests to function
+include_directories(
+    /usr/local/avr/include/avr
+    #/usr/lib/avr/include/avr
+)

tests/ADC/test_ADC.cpp

@@ -0,0 +1,192 @@
+/*
+ * Author: Jake G 
+ * Date: 2024 
+ * filename: test_ADC.c
+ * description: module_purpose
+ */
+
+#include "CppUTest/CommandLineTestRunner.h"
+#include "CppUTestExt/MockSupport.h"
+#include <cstdint>
+
+//This define allows us to dircetly include the device header without error.
+#define _AVR_IO_H_
+
+
+extern "C" 
+{
+#include <iotn404.h> //ATtiny404 header fille.
+#include "ADC.h"
+}
+
+TEST_GROUP(test_ADC)
+{
+    void setup()
+    {
+
+    }
+    void teardown()
+    {
+        mock().checkExpectations();
+        mock().clear();
+    }
+};
+
+TEST(test_ADC, FirstTest)
+{
+   CHECK(true);
+}
+
+
+TEST(test_ADC, ADC_SetupSetsRegisters)
+{
+    //Clears control register A for ADC0
+    mock().expectOneCall("RegEdit_SetNum")
+        .withPointerParameter("reg", (void *) &ADC0.CTRLA)
+        .withUnsignedIntParameter("num", 0x00);
+
+    //Sets The sample accumulation number to 32.
+    mock().expectOneCall("RegEdit_SetNum")
+        .withPointerParameter("reg", (void *) &ADC0.CTRLB)
+        .withUnsignedIntParameter("num", 0x5);
+
+    //Sets the voltage reference to VDD or VCC.
+    mock().expectOneCall("RegEdit_SetBit")
+        .withPointerParameter("reg", (void *) &ADC0.CTRLC)
+        .withUnsignedIntParameter("bit_num", 4);
+
+    //Sets the pre-scalar for the adc sample rate.
+    mock().expectOneCall("RegEdit_SetBit")
+        .withPointerParameter("reg", (void *) &ADC0.CTRLC)
+        .withUnsignedIntParameter("bit_num", 2);
+
+    //Setup an Initalization delay.
+    mock().expectOneCall("RegEdit_OR_Num")
+        .withPointerParameter("reg", (void *) &ADC0.CTRLD)
+        .withUnsignedIntParameter("num", (2<<5));
+
+    //Set the bit for ADC variation during readings.
+    mock().expectOneCall("RegEdit_SetBit")
+        .withPointerParameter("reg", (void *) &ADC0.CTRLD)
+        .withUnsignedIntParameter("bit_num", 4);
+
+    ADC_Setup();     
+}
+
+TEST(test_ADC, ADC_InitPortAPin7UsesCorrectRegisters)
+{
+    //Check for setting the direction to input.
+    mock().expectOneCall("RegEdit_ClearBit")
+        .withPointerParameter("reg", (void *) &PORTA.DIR)
+        .withUnsignedIntParameter("bit_num", 7);
+ 
+    //Check that the pullup is off 
+    mock().expectOneCall("RegEdit_ClearBit")
+        .withPointerParameter("reg", (void *) &PORTA.OUT)
+        .withUnsignedIntParameter("bit_num", 7);
+
+    //Set the ISC(input sense config) to disable digital input
+    //buffering and reduce the noise on ADC usage.
+    mock().expectOneCall("RegEdit_SetBit")
+        .withPointerParameter("reg", (void *) &PORTA.PIN7CTRL)
+        .withUnsignedIntParameter("bit_num", PORT_ISC_INPUT_DISABLE_gc);
+
+
+    ADC_Init(7);
+}
+
+TEST(test_ADC, ADC_InitPortAPin0UsesCorrectRegisters)
+{
+
+    //Check for setting the direction to input.
+    mock().expectOneCall("RegEdit_ClearBit")
+        .withPointerParameter("reg", (void *) &PORTA.DIR)
+        .withUnsignedIntParameter("bit_num", 0);
+ 
+    //Check that the pullup is off 
+    mock().expectOneCall("RegEdit_ClearBit")
+        .withPointerParameter("reg", (void *) &PORTA.OUT)
+        .withUnsignedIntParameter("bit_num", 0);
+
+    //Set the ISC(input sense config) to disable digital input
+    //buffering and reduce the noise on ADC usage.
+    mock().expectOneCall("RegEdit_SetBit")
+        .withPointerParameter("reg", (void *) &PORTA.PIN0CTRL)
+        .withUnsignedIntParameter("bit_num", PORT_ISC_INPUT_DISABLE_gc);
+
+
+    ADC_Init(0);
+}
+
+TEST(test_ADC, ADC_InitDoesNothingOnHighPinNumbers)
+{
+    mock().expectNoCall("RegEdit_SetBit");
+    ADC_Init(8);
+}
+
+TEST(test_ADC, ADC_EnablePasses)
+{
+
+    mock().expectOneCall("RegEdit_SetBit")
+        .withPointerParameter("reg", (void *) &ADC0.CTRLA)
+        .withUnsignedIntParameter("bit_num", 0);
+
+    ADC_Enable();
+
+}
+
+TEST(test_ADC, ADC_DisablePasses)
+{
+    mock().expectOneCall("RegEdit_ClearBit")
+        .withPointerParameter("reg", (void *) &ADC0.CTRLA)
+        .withUnsignedIntParameter("bit_num", 0);
+
+    ADC_Disable();
+}
+
+TEST(test_ADC, ADC_SetPinSetsRightRegisters)
+{
+    //It clears existing MUXPOS register values.
+    mock().expectOneCall("RegEdit_ClearRegister")
+        .withPointerParameter("reg", (void *) &ADC0.MUXPOS);
+
+    //It Correctly sets the pin number.
+    mock().expectOneCall("RegEdit_SetNum")
+        .withPointerParameter("reg", (void *) &ADC0.MUXPOS)
+        .withUnsignedIntParameter("num", 4);
+
+    ADC_SetPin(4);
+}
+
+
+TEST(test_ADC, ADC_SetPinFailsOnInvalidPin)
+{
+    ADC_SetPin(8);
+}
+
+
+static uint16_t ADC_ReadValueFake(uint8_t pin_num)
+{
+    return 512;
+}
+
+TEST_GROUP(test_ADCRead)
+{
+    void setup()
+    {
+        UT_PTR_SET(ADC_ReadValue, ADC_ReadValueFake);
+    }
+
+    void teardown()
+    {
+
+    }
+};
+
+TEST(test_ADCRead, FunctionPointerSwapWorks)
+{
+    uint16_t value = ADC_ReadValue(0);
+    
+    LONGS_EQUAL(512, value);
+}
+

tests/AllTests.cpp

@@ -3,6 +3,10 @@
 
 //ImportTestGroups
 IMPORT_TEST_GROUP(simple_test);
+IMPORT_TEST_GROUP(test_SuperLoop);
+IMPORT_TEST_GROUP(test_ADC);
+IMPORT_TEST_GROUP(test_RegEdit);
+
 
 //START: main
 int main(int argc, char** argv)

tests/CMakeLists.txt

@@ -1,7 +1,13 @@
 project(Tests)
 
 # TEST_DIRS 
+add_subdirectory(SuperLoop)
+add_subdirectory(ADC)
+add_subdirectory(MockADC)
+add_subdirectory(RegEdit)
+add_subdirectory(MockRegEdit)
 add_subdirectory(simple_test)
+#add_subdirectory(timer)
 
 # TEST_RUNNER
 add_executable(AllTests
@@ -12,5 +18,19 @@ target_link_libraries(AllTests
     ${CPPUTEST_LIBRARIES}/libCppUTest.a
     ${CPPUTEST_LIBRARIES}/libCppUTestExt.a
     # TEST_LINKS
+	test_SuperLoop
+    test_ADC
+    test_RegEdit
     simple_test
 )
+
+add_executable(Mock_Tests
+    MockTests.cpp    
+)
+
+target_link_libraries(Mock_Tests
+    ${CPPUTEST_LIBRARIES}/libCppUTest.a
+    ${CPPUTEST_LIBRARIES}/libCppUTestExt.a
+	test_MockRegEdit
+    test_MockADC
+)

tests/MockADC/CMakeLists.txt

@@ -0,0 +1,10 @@
+# TEST_RUNNER
+add_library(test_MockADC
+    test_MockADC.cpp    
+)
+
+target_link_libraries(test_MockADC
+    ${CPPUTEST_LIBRARIES}/libCppUTest.a
+    ${CPPUTEST_LIBRARIES}/libCppUTestExt.a
+    MockADC
+)

tests/MockADC/test_MockADC.cpp

@@ -0,0 +1,94 @@
+/*
+ * Author: Jake G 
+ * Date: 2024 
+ * filename: test_MockADC.c
+ * description: 
+ */
+
+#include "CppUTest/CommandLineTestRunner.h"
+#include "CppUTestExt/MockSupport.h"
+#include <cstdint>
+
+extern "C" 
+{
+#include "MockADC.h"
+}
+
+TEST_GROUP(test_MockADC)
+{
+    void setup()
+    {
+
+    }
+    void teardown()
+    {
+        mock().checkExpectations();
+        mock().clear();
+    }
+};
+
+TEST(test_MockADC, ADC_InitExpects)
+{
+    mock().expectOneCall("ADC_Init")
+        .withUnsignedIntParameter("pin_num", 7);
+
+    ADC_Init(7);
+}
+
+TEST(test_MockADC, ADC_EnableExpects)
+{
+    mock().expectOneCall("ADC_Enable");
+
+    ADC_Enable();
+}
+
+
+TEST(test_MockADC, ADC_DisableExpect)
+{
+    mock().expectOneCall("ADC_Disable");
+
+    ADC_Disable();
+}
+
+TEST(test_MockADC, ADC_ReadValue)
+{
+    MockADC_ZeroIndex();
+    MockADC_PushValue(512);
+ 
+    mock().expectOneCall("ADC_ReadValue_Impl")
+        .withUnsignedIntParameter("pin_num", 0x2);
+
+    uint16_t val = ADC_ReadValue(0x2);
+    LONGS_EQUAL(512, val);
+    
+}
+
+TEST(test_MockADC, ADC_ReadValueReturnsZeroOnEmptyBuffer)
+{
+    MockADC_ZeroIndex();
+    
+    mock().expectOneCall("ADC_ReadValue_Impl")
+        .withUnsignedIntParameter("pin_num", 0x2)
+        .andReturnValue(0x0000);
+
+    uint16_t val = ADC_ReadValue(0x2);
+    LONGS_EQUAL(0, val);
+}
+
+TEST(test_MockADC, MockADC_PushValueDoesntOverflowArray)
+{
+    MockADC_ZeroIndex();
+    for(int i = 0; i < 257; i++){
+        MockADC_PushValue(512+i); 
+        CHECK_TRUE(MockADC_GetIndex() <= 255);
+    }
+}
+
+TEST(test_MockADC, MockADC_SetupSetsGlobal)
+{
+    CHECK_FALSE(MockADC_IsSetup());
+    
+    ADC_Setup();
+
+    CHECK_TRUE(MockADC_IsSetup());
+}

tests/MockRegEdit/CMakeLists.txt

@@ -0,0 +1,11 @@
+# TEST_RUNNER
+add_library(test_MockRegEdit
+    test_MockRegEdit.cpp    
+)
+
+target_link_libraries(test_MockRegEdit
+    ${CPPUTEST_LIBRARIES}/libCppUTest.a
+    ${CPPUTEST_LIBRARIES}/libCppUTestExt.a
+    MockRegEdit
+)
+

tests/MockRegEdit/test_MockRegEdit.cpp

@@ -0,0 +1,168 @@
+/*
+ * Author: username
+ * Date: todays_date 
+ * filename: test_MockRegEdit.c
+ * description: module_purpose
+ */
+
+#include "CppUTest/CommandLineTestRunner.h"
+#include "CppUTestExt/MockSupport.h"
+#include <cstdint>
+
+extern "C" 
+{
+#include "MockRegEdit.h"
+}
+
+
+
+
+TEST_GROUP(test_MockRegEdit)
+{
+    void setup()
+    {
+    }
+    void teardown()
+    {
+        mock().clear();
+    }
+};
+
+
+TEST(test_MockRegEdit, RegEdit_ClearRegisterExpectedCallPasses)
+{
+    uint8_t a;
+    uint8_t *b = &a;
+
+    mock().expectOneCall("RegEdit_ClearRegister")
+        .withPointerParameter("reg", b);
+
+    RegEdit_ClearRegister(b);
+
+    mock().checkExpectations();
+}
+
+
+TEST(test_MockRegEdit, RegEdit_SetRegisterExpectedCallPasses)
+{
+
+    uint8_t a;
+    uint8_t *b = &a;
+
+    mock().expectOneCall("RegEdit_SetRegister")
+        .withPointerParameter("reg", b);
+    
+    RegEdit_SetRegister(b);
+    
+    mock().checkExpectations();
+}
+
+
+TEST(test_MockRegEdit, RegEdit_SetBitExpectedCallPasses)
+{
+
+    uint8_t a;
+    uint8_t *b = &a;
+
+    mock().expectOneCall("RegEdit_SetBit")
+        .withPointerParameter("reg", b)
+        .withUnsignedIntParameter("bit_num", 5);
+    
+    RegEdit_SetBit(b, 5);
+    
+    mock().checkExpectations();
+}
+
+
+TEST(test_MockRegEdit, RegEdit_ClearBitExpectedCallPasses)
+{
+
+    uint8_t a;
+    uint8_t *b = &a;
+
+    mock().expectOneCall("RegEdit_ClearBit")
+        .withPointerParameter("reg", b)
+        .withUnsignedIntParameter("bit_num", 5);
+    
+    RegEdit_ClearBit(b, 5);
+    
+    mock().checkExpectations();
+}
+
+TEST(test_MockRegEdit, RegEdit_IsBitSetExpectedCallPasses)
+{
+    uint8_t a = 0xFF;
+    uint8_t *b = &a;
+
+    mock().expectOneCall("RegEdit_IsBitSet")
+        .withPointerParameter("reg", b)
+        .withUnsignedIntParameter("bit_num", 5)
+        .andReturnValue(true);
+    
+    CHECK_TRUE(RegEdit_IsBitSet(b, 5));
+    
+    mock().checkExpectations();
+}
+
+
+TEST(test_MockRegEdit, RegEdit_IsBitSetExpectedCallPassesWithFalse)
+{
+    uint8_t a = 0xFF;
+    uint8_t *b = &a;
+
+    mock().expectOneCall("RegEdit_IsBitSet")
+        .withPointerParameter("reg", b)
+        .withUnsignedIntParameter("bit_num", 5)
+        .andReturnValue(false);
+    
+    CHECK_FALSE(RegEdit_IsBitSet(b, 5));
+    
+    mock().checkExpectations();
+}
+
+TEST(test_MockRegEdit, RegEdit_OR_NumExpectedWorks)
+{
+    uint8_t a = 0xFF;
+    uint8_t *b = &a;
+
+    mock().expectOneCall("RegEdit_OR_Num")
+        .withPointerParameter("reg", b)
+        .withUnsignedIntParameter("num", 0x4)
+        .andReturnValue(false);
+    
+    RegEdit_OR_Num(b, 0x4);
+    
+    mock().checkExpectations();
+
+
+}
+
+TEST(test_MockRegEdit, RegEdit_SetNumPasses)
+{
+    uint8_t a = 0xFF;
+    uint8_t *b = &a;
+
+    mock().expectOneCall("RegEdit_SetNum")
+        .withPointerParameter("reg", b)
+        .withUnsignedIntParameter("num", 0x4)
+        .andReturnValue(false);
+    
+    RegEdit_SetNum(b, 0x4);
+    
+    mock().checkExpectations();
+}
+
+TEST(test_MockRegEdit, RegEdit_ReadRegPasses)
+{
+    uint8_t a = 0xFF;
+    uint8_t *b = &a;
+
+    mock().expectOneCall("RegEdit_ReadReg")
+        .withPointerParameter("reg", b)
+        .andReturnValue(0xFF);
+   
+    uint8_t reg_val = RegEdit_ReadReg(b);
+    LONGS_EQUAL(0xFF, reg_val); 
+    
+    mock().checkExpectations();
+}

tests/MockTests.cpp

@@ -0,0 +1,13 @@
+#include "CppUTest/CommandLineTestRunner.h"
+
+
+//ImportTestGroups
+IMPORT_TEST_GROUP(test_MockRegEdit);
+IMPORT_TEST_GROUP(test_MockADC);
+
+//START: main
+int main(int argc, char** argv)
+{
+    return RUN_ALL_TESTS(argc, argv);
+}
+//END: main

tests/RegEdit/CMakeLists.txt

@@ -0,0 +1,10 @@
+# TEST_RUNNER
+add_library(test_RegEdit
+    test_RegEdit.cpp    
+)
+
+target_link_libraries(test_RegEdit
+    ${CPPUTEST_LIBRARIES}/libCppUTest.a
+    ${CPPUTEST_LIBRARIES}/libCppUTestExt.a
+    RegEdit
+)

tests/RegEdit/test_RegEdit.cpp

@@ -0,0 +1,32 @@
+/*
+ * Author: username
+ * Date: todays_date 
+ * filename: test_RegEdit.c
+ * description: module_purpose
+ */
+
+#include "CppUTest/CommandLineTestRunner.h"
+
+extern "C" 
+{
+#include "RegEdit.h"
+}
+
+TEST_GROUP(test_RegEdit)
+{
+    void setup()
+    {
+
+    }
+    void teardown()
+    {
+
+    }
+};
+
+TEST(test_RegEdit, FirstTest)
+{
+   //FAIL("Fail me!");
+   CHECK(true);
+}
+