Probe Class Reference

The Probe provides a convenient class that can be used to observe behavior of programs. It may be used with a logical analyser. The one used here has eight channels, numbered from 0 to 7. More...

#include <probe.h>

Collaboration diagram for Probe:

Public Member Functions
	Probe (uint _channel)
	Construct a new Probe object.
void	hi ()
	Generates a HI logical level on the GPIO.
void	lo ()
	Generates a LO logical level on the GPIO.
void	pulse_us (uint _duration=1)
	Generates a HI level pulse on the GPIO during _duration µs.
void	copy (bool _value)
	Used to copy the boolean _value on th GPIO.
void	pulse_train (uint nb)
	Generates a train of 10 us pulses on the GPIO.

Private Attributes
uint	_gpio
	this is the GPIO output on wich signals will be generated. The numbers are those of Raspberry Pi Pico.

Static Private Attributes
static constexpr int	_channel_map [8] = {6, 7, 8, 9, 16, 17, 21, 26}
	this is the mapping of GPIO number to the logic analyser channel. The choice of GPIO number is arbitrar. It will depends on free outputs on your specific hardware implementation.

Detailed Description

The Probe provides a convenient class that can be used to observe behavior of programs. It may be used with a logical analyser. The one used here has eight channels, numbered from 0 to 7.

Constructor & Destructor Documentation

Probe()

Probe::Probe

(

uint

_channel

)

Construct a new Probe object.

The Probe provides a convenient class that can be used to observe behavior of programs. It may be used with a logical analyser. The one used here has eight channel, numbered from 0 to 7.

Parameters

_channel

the channel number as it appears on the logic analyser display

Member Function Documentation

copy()

void Probe::copy

(

bool

_value

)

Used to copy the boolean _value on th GPIO.

Parameters

_value

pulse_train()

void Probe::pulse_train

(

uint

nb

)

Generates a train of 10 us pulses on the GPIO.

Parameters

nb	Number of pulses to generate.

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pulse_us()

void Probe::pulse_us

(

uint

_duration = 1

)

Generates a HI level pulse on the GPIO during _duration µs.

Parameters

_duration

default to 1

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

• probe.h
• probe.cpp