AnalogSensor.h File Reference

#include "stm32f7xx.h"
#include "stm32f7xx_hal.h"
#include "stm32f7xx_hal_adc.h"
#include "stm32f7xx_hal_dma.h"
#include "stm32f7xx_hal_uart.h"
#include <stdio.h>
#include <string.h>
#include <stdint.h>
#include "Sensor.h"

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Classes
struct	AnalogSensor

Functions
void	initAnalogSensor (AnalogSensor *analogSensor, const char *name, int hz, int channel, void *child)
	Initializes an analog sensor and configures the corresponding GPIO pin. More...
void	ProcessADCData (uint32_t *adc1_buffer, uint32_t *adc2_buffer, uint32_t *adc3_buffer)
	Processes ADC data from all three ADCs and stores it in the circular buffer. More...
float	getAnalogSensorData (AnalogSensor *sensor)
	Retrieves analog sensor data for a specific channel. More...

Variables
ADC_HandleTypeDef	hadc1
ADC_HandleTypeDef	hadc2
ADC_HandleTypeDef	hadc3
DMA_HandleTypeDef	hdma_adc1
DMA_HandleTypeDef	hdma_adc2
DMA_HandleTypeDef	hdma_adc3
uint32_t	adc1_buffer [7]
uint32_t	adc2_buffer [7]
uint32_t	adc3_buffer [8]

Function Documentation

getAnalogSensorData()

float getAnalogSensorData

(

AnalogSensor *

sensor

)

Retrieves analog sensor data for a specific channel.

Parameters

sensor

Pointer to the AnalogSensor structure

Returns

int The current ADC value for the specified channel

This function returns the latest ADC value for the channel specified in the AnalogSensor structure. If an invalid channel is specified, it returns 0.

Parameters

sensor

Pointer to the AnalogSensor structure

Returns

int The current ADC value for the specified channel

This function returns the latest ADC value for the channel specified in the AnalogSensor structure. If an invalid channel is specified, it returns 0.

Definition at line 89 of file AnalogSensor.c.

                                                {
    if (sensor->channel >= 0 && sensor->channel < ADC_CHANNELS) {
        return ((float)adc_samples[sensor->channel]/4096)*ADC_VREF;
    }
    printf("Invalid channel specified for AnalogSensor %s\r\n", sensor->sensor.updateable.name);
    return 0; // Default return for invalid channels
}

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initAnalogSensor()

void initAnalogSensor	(	AnalogSensor *	analogSensor,
		const char *	name,
		int	hz,
		int	channel,
		void *	child
	)

Initializes an analog sensor and configures the corresponding GPIO pin.

Parameters

sensor	Pointer to the AnalogSensor structure to initialize
name	Name of the sensor (string)
hz	Sampling frequency in Hertz
channel	ADC channel number for the sensor (0-16)

This function initializes the base sensor properties, sets the ADC channel, and configures the corresponding GPIO pin based on the channel number.

Parameters

sensor	Pointer to the AnalogSensor structure to initialize
name	Name of the sensor (string)
hz	Sampling frequency in Hertz
channel	ADC channel number for the sensor (0-16)

This function initializes the base sensor properties, sets the ADC channel, and configures the corresponding GPIO pin based on the channel number.

Definition at line 42 of file AnalogSensor.c.

                                                                                                      {
    initSensor(&analogSensor->sensor, name, hz, s_ANALOG, analogSensor);
    analogSensor->channel = channel;
    analogSensor->child = child;
}

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ProcessADCData()

void ProcessADCData	(	uint32_t *	adc1_buffer,
		uint32_t *	adc2_buffer,
		uint32_t *	adc3_buffer
	)

Processes ADC data from all three ADCs and stores it in the circular buffer.

Parameters

adc1_data	Pointer to ADC1 data buffer (channels 0-5)
adc2_data	Pointer to ADC2 data buffer (channels 6-11)
adc3_data	Pointer to ADC3 data buffer (channels 12-15)

This function combines data from all three ADCs into a single ADCSample and adds it to the circular buffer. It also sends debug information via UART.

Parameters

adc1_data	Pointer to ADC1 data buffer (channels 0-5)
adc2_data	Pointer to ADC2 data buffer (channels 6-11)
adc3_data	Pointer to ADC3 data buffer (channels 12-15)

This function combines data from all three ADCs into a single ADCSample and adds it to the circular buffer. It also sends debug information via UART.

Definition at line 58 of file AnalogSensor.c.

                                                                                         {
 
    // Channels 0, 2, 6, 8, 19, 12, 14 on ADC1
    for (int i = 0; i < ADC1_CHANNEL_SIZE; i++) {
        adc_samples[i] = adc1_buffer[i];
    }
 
    // Channels 1, 3, 7, 9, 10, 13, 15 on ADC2
    for (int i = ADC1_CHANNEL_SIZE; i < ADC1_CHANNEL_SIZE+ADC2_CHANNEL_SIZE; i++) {
        adc_samples[i] = adc2_buffer[i-7];
    }
 
    // Channels 4, 5, 6, 7, 8, 9, 14, 15 on ADC3
    for (int i = ADC1_CHANNEL_SIZE+ADC2_CHANNEL_SIZE; i < ADC_CHANNELS; i++) {
        adc_samples[i] = adc3_buffer[i-14];
    }
 
//    printf("8: %10d, 4: %10d, 12: %10d, 19: %10d, 21: %10d, 18: %10d, 10: %10d\r\n, 5: %10d\r\n, 6: %10d\r\n",
//           adc_samples[8], adc_samples[4], adc_samples[12], adc_samples[19], adc_samples[21], adc_samples[18], adc_samples[10], adc_samples[5], adc_samples[6]);
 
}

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Variable Documentation

adc1_buffer

uint32_t adc1_buffer[7]

extern

Definition at line 113 of file main.c.

adc2_buffer

uint32_t adc2_buffer[7]

extern

Definition at line 114 of file main.c.

adc3_buffer

uint32_t adc3_buffer[8]

extern

Definition at line 115 of file main.c.

hadc1

ADC_HandleTypeDef hadc1

extern

Definition at line 60 of file main.c.

hadc2

ADC_HandleTypeDef hadc2

Definition at line 68 of file AnalogSensor.h.

hadc3

ADC_HandleTypeDef hadc3

Definition at line 68 of file AnalogSensor.h.

hdma_adc1

DMA_HandleTypeDef hdma_adc1

extern

Definition at line 63 of file main.c.

hdma_adc2

DMA_HandleTypeDef hdma_adc2

Definition at line 69 of file AnalogSensor.h.

hdma_adc3

DMA_HandleTypeDef hdma_adc3

Definition at line 69 of file AnalogSensor.h.