Defines all types and constants specific to support ATtinyX4 MCU targets. More...

Enumerations
enum class	Port : uint8_t { PORT_A = 0 , PORT_B , NONE = UINT8_MAX }
	Defines all available ports of ATtinyX4. More...

enum class	DigitalPin : uint8_t { D0_PA0 = 0 , D1_PA1 , D2_PA2 , D3_PA3 , D4_PA4 , D5_PA5 , D6_PA6 , D7_PA7 , D8_PB0 , D9_PB1 , D10_PB2 , LED = D7_PA7 , NONE = UINT8_MAX }
	Defines all available digital input/output pins of ATtinyX4, with additional pin imaginary numbering (as for an Arduino board). More...

enum class	AnalogClock : uint8_t { MAX_FREQ_50KHz = 0 , MAX_FREQ_100KHz , MAX_FREQ_200KHz , MAX_FREQ_500KHz , MAX_FREQ_1MHz }
	Defines available clocks of ATtinyX4, used for analog input. More...

enum class	AnalogReference : uint8_t { AREF = 0 , AVCC , INTERNAL_1_1V }
	Defines available voltage references of ATtinyX4, used for analog input. More...

enum class	AnalogPin : uint8_t { A0 = 0 , A1 , A2 , A3 , A4 , A5 , A6 , A7 , TEMP , BANDGAP , NONE = UINT8_MAX }
	Defines all available analog input pins of ATtinyX4, with reference to AVR ATtinyX4 pins. More...

enum class	PWMPin : uint8_t { D10_PB2_OC0A = 0 , D7_PA7_OC0B , D6_PA6_OC1A , D5_PA5_OC1B , NONE = UINT8_MAX }
	Defines all digital output pins of ATtinyX4, capable of PWM output. More...

enum class	ExternalInterruptPin : uint8_t { D10_PB2_EXT0 = 0 }
	Defines all digital output pins of ATtinyX4, usable as direct external interrupt pins. More...

enum class	InterruptPin : uint8_t { D0_PA0_PCI0 = uint8_t(DigitalPin::D0_PA0) , D1_PA1_PCI0 = uint8_t(DigitalPin::D1_PA1) , D2_PA2_PCI0 = uint8_t(DigitalPin::D2_PA2) , D3_PA3_PCI0 = uint8_t(DigitalPin::D3_PA3) , D4_PA4_PCI0 = uint8_t(DigitalPin::D4_PA4) , D5_PA5_PCI0 = uint8_t(DigitalPin::D5_PA5) , D6_PA6_PCI0 = uint8_t(DigitalPin::D6_PA6) , D7_PA7_PCI0 = uint8_t(DigitalPin::D7_PA7) , D8_PB0_PCI1 = uint8_t(DigitalPin::D8_PB0) , D9_PB1_PCI1 = uint8_t(DigitalPin::D9_PB1) , D10_PB2_PCI1 = uint8_t(DigitalPin::D10_PB2) }
	Defines all digital output pins of ATtinyX4, usable as pin change interrupt (PCI) pins. More...

enum class	USART : uint8_t
	Defines all USART modules of ATtinyX4, actually none at all. More...

enum class	Timer : uint8_t { TIMER0 = 0 , TIMER1 = 1 }
	Defines all timers available for ATtinyX4. More...

enum class	SleepMode : uint8_t { IDLE = SLEEP_MODE_IDLE , ADC_NOISE_REDUCTION = SLEEP_MODE_ADC , POWER_DOWN = SLEEP_MODE_PWR_DOWN , POWER_SAVE = SLEEP_MODE_PWR_SAVE , STANDBY = SLEEP_MODE_PWR_SAVE , EXTENDED_STANDBY = SLEEP_MODE_PWR_SAVE }
	Defines all available sleep modes for ATmega328P. More...

Functions
static void	init ()
	Performs special initialization for ATtinyX4, actually nothing at all. More...

Detailed Description

Defines all types and constants specific to support ATtinyX4 MCU targets.

Enumeration Type Documentation

◆ Port

enum class board::Port : uint8_t

strong

Defines all available ports of ATtinyX4.

Enumerator
PORT_A	Port A (8 IO)
PORT_B	Port B (3 IO)

Definition at line 55 of file attiny_x4.h.

◆ DigitalPin

enum class board::DigitalPin : uint8_t

strong

Defines all available digital input/output pins of ATtinyX4, with additional pin imaginary numbering (as for an Arduino board).

Each symbol is in the form Dxx_Pyz, where xx is the imaginary pin number, y is the port letter (B, C or D) and z is the bit number for that pin within its port.

Enumerator
D0_PA0	Pin PA0 (D0)
D1_PA1	Pin PA1 (D1)
D2_PA2	Pin PA2 (D2)
D3_PA3	Pin PA3 (D3)
D4_PA4	Pin PA4 (D4)
D5_PA5	Pin PA5 (D5)
D6_PA6	Pin PA6 (D6)
D7_PA7	Pin PA6 (D7)
D8_PB0	Pin PB0 (D8)
D9_PB1	Pin PB1 (D9)
D10_PB2	Pin PB2 (D10)
LED	Shortcut for LED pin, arbitrarily chosen to be D7.

Definition at line 72 of file attiny_x4.h.

◆ AnalogClock

enum class board::AnalogClock : uint8_t

strong

Defines available clocks of ATtinyX4, used for analog input.

Definition at line 105 of file attiny_x4.h.

◆ AnalogReference

enum class board::AnalogReference : uint8_t

strong

Defines available voltage references of ATtinyX4, used for analog input.

Enumerator
AREF	Voltage reference is given by the `AREF` (PA0) pin.
AVCC	Voltage reference is given by the `Vcc` pin.
INTERNAL_1_1V	Voltage reference is internal 1.1V reference, generated from the internal bandgap reference.

Definition at line 117 of file attiny_x4.h.

◆ AnalogPin

enum class board::AnalogPin : uint8_t

strong

Defines all available analog input pins of ATtinyX4, with reference to AVR ATtinyX4 pins.

Note that this includes also other sources than pin, e.g. the internal bandgap reference or the temperature sensor.

Enumerator
A0	Pin ADC0 (PA0)
A1	Pin ADC1 (PA1)
A2	Pin ADC2 (PA2)
A3	Pin ADC3 (PA3)
A4	Pin ADC4 (PA4)
A5	Pin ADC5 (PA5)
A6	Pin ADC6 (PA6)
A7	Pin ADC7 (PA7)
TEMP	Temperature sensor.
BANDGAP	Bandgap reference.

Definition at line 134 of file attiny_x4.h.

◆ PWMPin

enum class board::PWMPin : uint8_t

strong

Defines all digital output pins of ATtinyX4, capable of PWM output.

Each symbol is in the form Dxx_Pyz_OCuv, where xx is the imaginary pin number , y is the port letter (B, C or D), z is the bit number for that pin within its port, u is the number of the timer used by this PWM pin and v the letter indicating which compare register of the timer this PWM pin is mapped to.

Definition at line 168 of file attiny_x4.h.

◆ ExternalInterruptPin

enum class board::ExternalInterruptPin : uint8_t

strong

Defines all digital output pins of ATtinyX4, usable as direct external interrupt pins.

Each symbol is in the form Dxx_Pyz_EXTu, where xx is the imaginary pin number , y is the port letter (B, C or D), z is the bit number for that pin within its port and u is the number of the interrupt for that pin.

Definition at line 186 of file attiny_x4.h.

◆ InterruptPin

enum class board::InterruptPin : uint8_t

strong

Defines all digital output pins of ATtinyX4, usable as pin change interrupt (PCI) pins.

Each symbol is in the form Dxx_Pyz_PCIu, where xx is the imaginary pin number, y is the port letter (B, C or D), z is the bit number for that pin within its port and u is the number of the PCI vector for that pin.

Definition at line 199 of file attiny_x4.h.

◆ USART

enum class board::USART : uint8_t

strong

Defines all USART modules of ATtinyX4, actually none at all.

Definition at line 218 of file attiny_x4.h.

◆ Timer

enum class board::Timer : uint8_t

strong

Defines all timers available for ATtinyX4.

Enumerator
TIMER0	Timer0 (8 bits)
TIMER1	Timer1 (16 bits)

Definition at line 227 of file attiny_x4.h.

◆ SleepMode

enum class board::SleepMode : uint8_t

strong

Defines all available sleep modes for ATmega328P.

Enumerator
IDLE	In this mode, CPU is stopped but all other peripherals and interrupts work normally. In this mode, current consumption is reduced to about 25% of active mode consumption.
ADC_NOISE_REDUCTION	In this mode, CPU is stopped but other peripherals and interrupts work normally, except IO. This mode is actually very similar to `IDLE`.
POWER_DOWN	In this mode, everything is stopped (including oscillator) but external interrupts, I2C slave (if enabled) and Watchdog Timer (if enabled). This is lowest current consumption mode, typically a few uA, depending on other factors (voltage, watchdog enabled or not). Waking up from this mode may take significant time until internal oscillator is restarted and stabilized; refer to datasheet for more detailed data (look for `Start-up times`).
POWER_SAVE	This mode is similar to `POWER_DOWN`, except Timer2 is still running if enabled. Waking up from this mode may take significant time until internal oscillator is restarted and stabilized; refer to datasheet for more detailed data (look for `Start-up times`).
STANDBY	This mode is exactly the same `POWER_DOWN`.
EXTENDED_STANDBY	This mode is exactly the same `POWER_SAVE`.

Definition at line 242 of file attiny_x4.h.

Function Documentation

◆ init()

static void board::init ( )

inlinestatic

Performs special initialization for ATtinyX4, actually nothing at all.

This must be called first in your main() function, even before sei(). In general you should ALWAYS call this function at the beginning of your main() even if you know it will not do anything; this will prevent strange behaviors when you want to port your code to another MCU target for which init() does perform important initialization, e.g. ATmega32u4 (Arduino LEONARDO).

Definition at line 50 of file attiny_x4.h.

Enumerations

Functions

Detailed Description

Enumeration Type Documentation

◆ Port

◆ DigitalPin

◆ AnalogClock

◆ AnalogReference

◆ AnalogPin

◆ PWMPin

◆ ExternalInterruptPin

◆ InterruptPin

◆ USART

◆ Timer

◆ SleepMode

Function Documentation

◆ init()