niktob560 / avr-api

API library for Atmel AVR

AVR-API [WIP]

Basic API library for Atmel AVR that can replace Arduino library

GPIO module

Example of single pin blink

gpio::setMode(&PORTB, PB7, gpio::OUTPUT);
while(1)
{
  gpio::setState(&PORTB, {PB7, gpio::State::TOGGLE});
  delay(100);
}

Example of many pins blinking

gpio::setMode(&PORTB, PB7, gpio::OUTPUT);
gpio::setMode(&PORTB, PB5, gpio::OUTPUT);
gpio::setMode(&PORTB, PB3, gpio::OUTPUT);
gpio::setMode(&PORTB, PB1, gpio::OUTPUT);
while(1)
{
  gpio::setStates(&PORTB, {{PB1, gpio::State::TOGGLE},
                           {PB3, gpio::State::TOGGLE},
                           {PB5, gpio::State::TOGGLE},
                           {PB7, gpio::State::TOGGLE}});
  delay(100);
}

USART module

Example using USART0 on 115200 baud

usart::begin<0>(115200);
sei();
usart::println<0>();
long i = 0;
while(1)
{
    usart::print<0>("NICE");    
    usart::println<0>(i);
    i++;
    delay(200);
}

Timers and interrupts module

Warning: timers module is under refactor now, methods Will be changed

void schedule(void)
{
  //foo
}

int main() 
{
  interrupt::set(interrupt::TC0_COMPA, schedule);
  TIMER0Init(TIMER0_COMA_NPWM_NORMAL, TIMER0_WF_CTC, TIMER0_CLK_SRC_1024);
  TIMER0EnableCOMPAInterrupt();
  TIMER0SetA(255);
  while(1) asm("NOP");
}

ADC module

adc::init();
adc::setRef(adc::ref::AREF);
sei();
adc::analogRead(0);

avr-api's Issues

Bad names

Names of files are bad (using .c instead of .cpp in C++ sources and .h instead of .hpp)

USART lag on filled memory

Calling USART0Print(int) causes lag

Timer modes

Timer modes table corrupted

No PWM

No PWM available in timer settings

Bad file names

File names don't reflect a sense

Can't test timers functionality

I have no hardware now and can't test that, but I also can't wait to push timers-testing branch into master

Strange behavior of usart bin output

Converting int to binary num in char array is broken

Support of another MC

Bad support for another controllers (as ATMega8 and smaller)

ADC

ADC is broken

[BUG] Only one ADC mode working

Only background mode of sampling working using ADC module
adc::mode::DEADLINE and adc::mode::MANUAL are not supported and there is no way to set mode

ATMega128 failed compilation

Does not compiles timers, watchdogs

Broken func input protector

FUNC_INPUT_PROTECTOR module is actually broken, bad timer regs