Subsystem for configuring general-purpose IOs (GPIOs). More...

#include <tmc9660.hpp>

Collaboration diagram for tmc9660::TMC9660< CommType >::GPIO:

Public Member Functions
bool	setMode (uint8_t pin, bool output, bool pullEnable=false, bool pullUp=true) noexcept
	Configure a GPIO pin as input or output.

bool	writePin (uint8_t pin, bool value) noexcept
	Write a digital value to a configured output pin.

bool	readDigital (uint8_t pin, bool &value) noexcept
	Read a digital input pin.

bool	readAnalog (uint8_t pin, uint16_t &value) noexcept
	Read an analog input (e.g. external temperature or potentiometer).

Private Member Functions
	GPIO (TMC9660 &parent) noexcept

Private Attributes
TMC9660 &	driver

Friends
class	TMC9660

Detailed Description

template<typename CommType>
struct tmc9660::TMC9660< CommType >::GPIO

Subsystem for configuring general-purpose IOs (GPIOs).

Pins can be configured as digital inputs, digital outputs, or analog inputs. The input pull-up/down resistors and output state can also be controlled.

Refer to the GPIO section and TMCL commands SIO / GIO (Table 18). See datasheet page 19.

Constructor & Destructor Documentation

◆ GPIO()

template<typename CommType >

tmc9660::TMC9660< CommType >::GPIO::GPIO ( TMC9660 & parent )

inlineexplicitprivatenoexcept

Member Function Documentation

◆ readAnalog()

template<typename CommType >

bool tmc9660::TMC9660< CommType >::GPIO::readAnalog	(	uint8_t	pin,
		uint16_t &	value )

noexcept

Read an analog input (e.g. external temperature or potentiometer).

Parameters

	pin	ADC input index
[out]	value	Raw ADC value (typically 0–65535)

Returns: true on success

Analog reads typically apply to AIN3, used with external thermistors.

◆ readDigital()

template<typename CommType >

bool tmc9660::TMC9660< CommType >::GPIO::readDigital	(	uint8_t	pin,
		bool &	value )

noexcept

Read a digital input pin.

Parameters

	pin	GPIO pin index
[out]	value	Logic level read from the pin

Returns: true on successful read

◆ setMode()

template<typename CommType >

bool tmc9660::TMC9660< CommType >::GPIO::setMode	(	uint8_t	pin,
		bool	output,
		bool	pullEnable = false,
		bool	pullUp = true )

noexcept

Configure a GPIO pin as input or output.

Parameters

pin	GPIO index (e.g. GPIO0..GPIO18)
output	Set to true to make the pin output, false = input
pull_enable	Enable pull resistor
pull_up	true = pull-up, false = pull-down