board Namespace Reference

Defines all types and constants specific to support Arduino MEGA board (ATmega644 MCU target). More...

Enumerations
enum class	Port : uint8_t {   PORT_A = 0 ,   PORT_B ,   PORT_C ,   PORT_D ,   NONE = UINT8_MAX }
	Defines all available ports of ATmega644. 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 ,   D11_PB3 ,   D12_PB4 ,   D13_PB5 ,   D14_PB6 ,   D15_PB7 ,   D16_PC0 ,   D17_PC1 ,   D18_PC2 ,   D19_PC3 ,   D20_PC4 ,   D21_PC5 ,   D22_PC6 ,   D23_PC7 ,   D24_PD0 ,   D25_PD1 ,   D26_PD2 ,   D27_PD3 ,   D28_PD4 ,   D29_PD5 ,   D30_PD6 ,   D31_PD7 ,   LED = D8_PB0 ,   NONE = 0XFF }
	Defines all available digital input/output pins of ATmega644, with reference to Arduino MEGA pins. 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 ATmega644, used for analog input. More...
enum class	AnalogReference : uint8_t {   AREF = 0 ,   AVCC ,   INTERNAL_1_1V ,   INTERNAL_2_56V }
	Defines available voltage references of ATmega644, used for analog input. More...
enum class	AnalogPin : uint8_t {   A0 = 0 ,   A1 ,   A2 ,   A3 ,   A4 ,   A5 ,   A6 ,   A7 ,   BANDGAP ,   NONE = UINT8_MAX }
	Defines all available analog input pins of ATmega644, with reference to Arduino MEGA pins. More...
enum class	PWMPin : uint8_t {   D11_PB3_OC0A = 0 ,   D12_PB4_OC0B ,   D28_PD4_OC1B ,   D29_PD5_OC1A ,   D30_PD6_OC2B ,   D31_PD7_OC2A ,   D14_PB6_OC3A ,   D15_PB7_OC3B ,   NONE = UINT8_MAX }
	Defines all digital output pins of ATmega644, capable of PWM output. More...
enum class	ExternalInterruptPin : uint8_t {   D26_PD2_EXT0 = 0 ,   D27_PD3_EXT1 ,   D10_PB2_EXT2 }
	Defines all digital output pins of ATmega644, 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) ,   D11_PB3_PCI1 = uint8_t(DigitalPin::D11_PB3) ,   D12_PB4_PCI1 = uint8_t(DigitalPin::D12_PB4) ,   D13_PB5_PCI1 = uint8_t(DigitalPin::D13_PB5) ,   D14_PB6_PCI1 = uint8_t(DigitalPin::D14_PB6) ,   D15_PB7_PCI1 = uint8_t(DigitalPin::D15_PB7) ,   D16_PC0_PCI2 = uint8_t(DigitalPin::D16_PC0) ,   D17_PC1_PCI2 = uint8_t(DigitalPin::D17_PC1) ,   D18_PC2_PCI2 = uint8_t(DigitalPin::D18_PC2) ,   D19_PC3_PCI2 = uint8_t(DigitalPin::D19_PC3) ,   D20_PC4_PCI2 = uint8_t(DigitalPin::D20_PC4) ,   D21_PC5_PCI2 = uint8_t(DigitalPin::D21_PC5) ,   D22_PC6_PCI2 = uint8_t(DigitalPin::D22_PC6) ,   D23_PC7_PCI2 = uint8_t(DigitalPin::D23_PC7) ,   D24_PD0_PCI3 = uint8_t(DigitalPin::D24_PD0) ,   D25_PD1_PCI3 = uint8_t(DigitalPin::D25_PD1) ,   D26_PD2_PCI3 = uint8_t(DigitalPin::D26_PD2) ,   D27_PD3_PCI3 = uint8_t(DigitalPin::D27_PD3) ,   D28_PD4_PCI3 = uint8_t(DigitalPin::D28_PD4) ,   D29_PD5_PCI3 = uint8_t(DigitalPin::D29_PD5) ,   D30_PD6_PCI3 = uint8_t(DigitalPin::D30_PD6) ,   D31_PD7_PCI3 = uint8_t(DigitalPin::D31_PD7) }
	Defines all digital output pins of ATmega644, usable as pin change interrupt (PCI) pins. More...
enum class	USART : uint8_t {   USART0 = 0 ,   USART1 = 1 }
	Defines all USART modules of ATmega644. More...
enum class	Timer : uint8_t {   TIMER0 = 0 ,   TIMER1 = 1 ,   TIMER2 = 2 ,   TIMER3 = 3 }
	Defines all timers available for ATmega644. 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_STANDBY ,   EXTENDED_STANDBY = SLEEP_MODE_EXT_STANDBY }
	Defines all available sleep modes for ATmega644. More...

Functions
static void	init ()
	Performs special initialization for ATmega644, actually nothing at all. More...

Detailed Description

Defines all types and constants specific to support Arduino MEGA board (ATmega644 MCU target).

Enumeration Type Documentation

Port

enum class board::Port : uint8_t

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Defines all available ports of ATmega644.

Enumerator
PORT_A	Port A (8 IO)
PORT_B	Port B (8 IO)
PORT_C	Port C (8 IO)
PORT_D	Port D (8 IO)

Definition at line 54 of file atmega_xx4.h.

DigitalPin

enum class board::DigitalPin : uint8_t

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Defines all available digital input/output pins of ATmega644, with reference to Arduino MEGA pins.

Only Arduino MEGA pins are listed here. Each symbol is in the form Dxx_Pyz, where xx is the pin number on Arduino, y is the port letter and z is the bit number for that pin within its port.

Enumerator
D0_PA0	Pin PA0 (ADC0/PCINT0)
D1_PA1	Pin PA1 (ADC1/PCINT1)
D2_PA2	Pin PA2 (ADC2/PCINT2)
D3_PA3	Pin PA3 (ADC3/PCINT3)
D4_PA4	Pin PA4 (ADC4/PCINT4)
D5_PA5	Pin PA5 (ADC5/PCINT5)
D6_PA6	Pin PA6 (ADC6/PCINT6)
D7_PA7	Pin PA7 (ADC7/PCINT7)
D8_PB0	Pin PB0 (PCINT8)
D9_PB1	Pin PB1 (PCINT9)
D10_PB2	Pin PB2 (PCINT10/INT2)
D11_PB3	Pin PB3 (PCINT11/OC0A)
D12_PB4	Pin PB4 (PCINT12/OC0B/SS)
D13_PB5	Pin PB5 (PCINT13/MOSI)
D14_PB6	Pin PB6 (PCINT14/MISO)
D15_PB7	Pin PB7 (PCINT15/SCK)
D16_PC0	Pin PC0 (PCINT16/SCL)
D17_PC1	Pin PC1 (PCINT17/SDA)
D18_PC2	Pin PC2 (PCINT18)
D19_PC3	Pin PC3 (PCINT19)
D20_PC4	Pin PC4 (PCINT20)
D21_PC5	Pin PC5 (PCINT21)
D22_PC6	Pin PC6 (PCINT22)
D23_PC7	Pin PC7 (PCINT23)
D24_PD0	Pin PD0 (PCINT24/RX0)
D25_PD1	Pin PD1 (PCINT25/TX0)
D26_PD2	Pin PD2 (PCINT26/RX1/INT0)
D27_PD3	Pin PD3 (PCINT27/TX1/INT1)
D28_PD4	Pin PD4 (PCINT28/OC1B)
D29_PD5	Pin PD5 (PCINT29/OC1A)
D30_PD6	Pin PD6 (PCINT30/OC2B/ICP)
D31_PD7	Pin PD7 (PCINT31/OC2A)
LED	Shortcut for LED pin (PB0 on pin 1 for ATmega644 PDIP)

Definition at line 75 of file atmega_xx4.h.

AnalogClock

enum class board::AnalogClock : uint8_t

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Defines available clocks of ATmega644, used for analog input.

Definition at line 154 of file atmega_xx4.h.

AnalogReference

enum class board::AnalogReference : uint8_t

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Defines available voltage references of ATmega644, used for analog input.

Enumerator
AREF	Voltage reference is given by the AREF pin.
AVCC	Voltage reference is given by the AVcc pin.
INTERNAL_1_1V	Voltage reference is internal 1.1V reference, generated from the internal bandgap reference.
INTERNAL_2_56V	Voltage reference is internal 2.56V reference, generated from the internal bandgap reference.

Definition at line 166 of file atmega_xx4.h.

AnalogPin

enum class board::AnalogPin : uint8_t

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Defines all available analog input pins of ATmega644, with reference to Arduino MEGA pins.

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

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)
BANDGAP	Bandgap reference.

Definition at line 186 of file atmega_xx4.h.

PWMPin

enum class board::PWMPin : uint8_t

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Defines all digital output pins of ATmega644, capable of PWM output.

Each symbol is in the form Dxx_Pyz_OCuv, where xx is the pin number on Arduino, y is the port letter, 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 218 of file atmega_xx4.h.

ExternalInterruptPin

enum class board::ExternalInterruptPin : uint8_t

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Defines all digital output pins of ATmega644, usable as direct external interrupt pins.

Each symbol is in the form Dxx_Pyz_EXTu, where xx is the pin number on Arduino, y is the port letter, 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 243 of file atmega_xx4.h.

InterruptPin

enum class board::InterruptPin : uint8_t

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Defines all digital output pins of ATmega644, usable as pin change interrupt (PCI) pins.

Each symbol is in the form Dxx_Pyz_PCIu, where xx is the pin number on Arduino, y is the port letter, 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 258 of file atmega_xx4.h.

USART

enum class board::USART : uint8_t

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Defines all USART modules of ATmega644.

Enumerator
USART0	USART0 is connected to pins D24_PD0 (RX0) and D25_PD1 (TX0).
USART1	USART1 is connected to pins D26_PD2 (RX1) and D27_PD3 (TX1).

Definition at line 304 of file atmega_xx4.h.

Timer

enum class board::Timer : uint8_t

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Defines all timers available for ATmega644.

Enumerator
TIMER0	Timer0 (8 bits)
TIMER1	Timer1 (16 bits)
TIMER2	Timer2 (8 bits)
TIMER3	Timer3 (16 bits)

Definition at line 315 of file atmega_xx4.h.

SleepMode

enum class board::SleepMode : uint8_t

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Defines all available sleep modes for ATmega644.

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 similar to POWER_DOWN, except the oscillator is kept running, hence waking up from this mode takes only 6 clock cycles.
EXTENDED_STANDBY	This mode is similar to POWER_SAVE, except the oscillator is kept running, hence waking up from this mode takes only 6 clock cycles.

Definition at line 332 of file atmega_xx4.h.

Function Documentation

init()

static void board::init ( )

inlinestatic

Performs special initialization for ATmega644, 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 49 of file atmega_xx4.h.