App.c File Reference

#include "../../../Inc/Sensors/AnalogSensors/App.h"
#include <stdio.h>

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Functions
void	initApp (App *app, int hz, int channel)
	Initializes the APP with the given frequency and channel. More...
float	getAppPosition (App *app)
	Gets the current position of the APP. More...
void	updateApp (App *app)
	Updates the APP data. More...
float	transferFunctionApp (float rawVal)
	Converts raw APP data to a meaningful position value. More...

Function Documentation

getAppPosition()

float getAppPosition

(

App *

app

)

Gets the current position of the APP.

Parameters

app	Pointer to the App structure to query.

Returns

The current position of the APP.

Definition at line 11 of file App.c.

                               {
    return app->position;
}

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initApp()

void initApp	(	App *	app,
		int	hz,
		int	channel
	)

Initializes the APP with the given frequency and channel.

Parameters

app	Pointer to the App structure to initialize.
hz	The frequency in Hertz at which the APP operates.
channel	The analog channel the APP is connected to.

Definition at line 5 of file App.c.

                                            {
    initAnalogSensor(&app->base, "App", hz, channel, app);
    app->position = 0;
    app->base.sensor.updateable.update = updateApp;
}

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transferFunctionApp()

float transferFunctionApp

(

float

rawVal

)

Converts raw APP data to a meaningful position value.

Parameters

rawVal

The raw data from the APP.

Returns

The converted APP position value.

Definition at line 21 of file App.c.

                                        {
    // This is a +-45 degree sensor
    if (rawVal < 0.5) {
        printf("App::transfer_function rawValue is too low\r\n");
        return -1;
    }
    else if (rawVal > 4.5) {
        printf("App::transfer_function rawValue is too high\r\n");
        return -1;
    }
    return (rawVal - 0.5)/4.0;
}

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updateApp()

void updateApp

(

App *

app

)

Updates the APP data.

Parameters

app	Pointer to the App structure to update.

Definition at line 15 of file App.c.

                         {
    // FIXME: Implement APP connection with stm
    float rawData = getAnalogSensorData(&app->base);
    app->position = transferFunctionApp(rawData);
}

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