adc_task.h File Reference

Header file for the ADC task system. More...

#include <stdlib.h>
#include <stdio.h>
#include "stm32f4xx_hal.h"
#include <stdint.h>

Go to the source code of this file.

Data Structures
struct	ADCTask
	Structure that represents the ADC task state and configuration. More...

Typedefs
typedef struct ControllerTask	ControllerTask
	Forward declaration for ControllerTask.
typedef struct PhotoresistorTask	PhotoresistorTask
	Forward declaration for PhotoresistorTask.
typedef struct ADCTask	ADCTask
	Forward declaration for ADCTask.
typedef void(*	adc_fcn_t) (ADCTask *adc_task)
	Function pointer type for ADC state functions.

Functions
void	adc_task_state_0_init (ADCTask *adc_task)
	Initializes the ADC task (state 0).
void	adc_task_run (ADCTask *adc_task)
	Executes the current ADC task state.
void	adc_task_state_1_read (ADCTask *adc_task)
	Reads and assigns values from the ADC DMA buffer (state 1).

Detailed Description

Header file for the ADC task system.

Author

Andrew Carr

Created on: Jun 5, 2025

Typedef Documentation

adc_fcn_t

typedef void(* adc_fcn_t) (ADCTask *adc_task)

Function pointer type for ADC state functions.

Each state function must take a pointer to ADCTask as its argument.

ControllerTask

typedef struct ControllerTask ControllerTask

Forward declaration for ControllerTask.

Forward declaration of ControllerTask structure.

PhotoresistorTask

typedef struct PhotoresistorTask PhotoresistorTask

Forward declaration for PhotoresistorTask.

Forward declaration of PhotoresistorTask structure.

Function Documentation

adc_task_run()

void adc_task_run

(

ADCTask *

adc_task

)

Executes the current ADC task state.

Parameters

adc_task

Pointer to the ADCTask instance.

Executes the current ADC task state.

This function checks the validity of the current state, then calls the corresponding state handler from the state's function pointer list.

Parameters

adc_task

Pointer to the ADCTask structure containing state and hardware info.

adc_task_state_0_init()

void adc_task_state_0_init

(

ADCTask *

adc_task

)

Initializes the ADC task (state 0).

Parameters

adc_task

Pointer to the ADCTask instance.

Initializes the ADC task (state 0).

Sets the task's state to 1 and starts the ADC with DMA to fill the dma_buffer.

Parameters

adc_task

Pointer to the ADCTask structure.

adc_task_state_1_read()

void adc_task_state_1_read

(

ADCTask *

adc_task

)

Reads and assigns values from the ADC DMA buffer (state 1).

Parameters

adc_task

Pointer to the ADCTask instance.

Reads and assigns values from the ADC DMA buffer (state 1).

This function maps each DMA buffer value to its corresponding sensor's adc_val.

Parameters

adc_task

Pointer to the ADCTask structure.