AnalogPin Class Reference

A class to represent a single pin configured for analog input. More...

#include <analog_pin.h>

Public Member Functions
void	init (AnalogDigitalConverter *adc, GPIO_TypeDef *basePort, uint16_t pin, uint8_t adc_channel)
	Initializes a pin to read analog values. More...
double	read () const
	Get the last reading of the pin, in volts. More...
uint16_t	read_raw () const
	Get the most recent reading of the pin, directly from the ADC. See AnalogDigitalConverter.read for the details on interpreting this value. More...

Private Attributes
AnalogDigitalConverter *	adc_
GPIO	gpio_
uint8_t	index_

Detailed Description

A class to represent a single pin configured for analog input.

This class manages the connection to the ADC, and does some of the math for reading. This class does not initialize the ADC.

Definition at line 44 of file analog_pin.h.

Member Function Documentation

void AnalogPin::init	(	AnalogDigitalConverter *	adc,
		GPIO_TypeDef *	basePort,
		uint16_t	pin,
		uint8_t	adc_channel
	)

Initializes a pin to read analog values.

This initialization includes configuring the GPIO, and adding a channel to the ADC. This does not configure the ADC. ADC configuration must happen before

Parameters

adc	The ADC this pin is to use
basePort	The GPIO definition for this pin to use
pin	The GPIO number for the pin
adc_channel	The ADC channel number for the pin, defined by the hardware

Definition at line 34 of file analog_pin.cpp.

double AnalogPin::read

(

)

const

Get the last reading of the pin, in volts.

Returns

The most recent reading, in volts

Definition at line 41 of file analog_pin.cpp.

uint16_t AnalogPin::read_raw

(

)

const

Get the most recent reading of the pin, directly from the ADC. See AnalogDigitalConverter.read for the details on interpreting this value.

Returns

The most recent raw reading

Definition at line 46 of file analog_pin.cpp.

Member Data Documentation

AnalogDigitalConverter* AnalogPin::adc_

private

Definition at line 71 of file analog_pin.h.

GPIO AnalogPin::gpio_

private

Definition at line 70 of file analog_pin.h.

uint8_t AnalogPin::index_

private

Definition at line 72 of file analog_pin.h.

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The documentation for this class was generated from the following files:

• analog_pin.h
• analog_pin.cpp