/* ATmega328P/ATmega2560   AtmelStudio  -std=c++14 */
#define F_CPU 16000000UL

#include <avr/io.h>
#include <avr/interrupt.h>
#include "E:\lib\src\AVR\GPIO.h"
#include "E:\AVR_PWM\Timers328(test)\src\TimerHelpers.h"

// Частота регулируется предделителем. Режим 1
// для F_CPU 16000000
// clk/1    - 31,4 kHz,
// clk/8    - 3,9  kHz,    16000000/8    = 2000000 Hz
// clk/64   - 490  Hz,     16000000/64   =  250000 Hz
// clk/256  - 122  Hz,     16000000/256  =   62500 Hz
// clk/1024 -  30  Hz      16000000/1024 =   15625 Hz

TimerHelper16<1, PRESCALE::Tn_RISING, (PORT::SET_A_ON_COMPARE | PORT::SET_B_ON_COMPARE)> timer1;
   
 GPIO<BOARD::OC1A> OC1A;  // PinB1
 GPIO<BOARD::OC1B> OC1B;  // PinB2
 GPIO<BOARD::T1> T1;      // PinD5

int main(void){
   
// Порты на вывод
OC1A.output();
OC1B.output();

T1.input();
T1.high();

timer1.setMode<TimerControlRegister::TCCR_1A, TimerControlRegister::TCCR_1B>();
TCNT1 = 0; // 256 max

OCR1A = 200;
OCR1B = 200;

  while (1) {  }
      
return 0;   
}

#include <tiny2313.h>
#include <math.h>
#include <io.h>
#include <delay.h>

#define F_CPU (8000000)
#define   VFG_TIMER_MAX (65535)
#define   VFG_PIN0 PORTB0
#define   VFG_PIN1 PORTB1
#define   VFG_PIN2 PORTB2
#define   VFG_DDR DDRB
#define   VFG_PORT PORTB

unsigned int fG=100;
unsigned char nG;
unsigned int N[]={1,8,64,256,1024};

void Tim1Init(void)
{
    VFG_DDR = (1<<VFG_PIN0); // set pin as OUTPUT
    TCCR1A = (1<<COM1A0); //toggle on compare
    TCCR1B = (1<<WGM12)|(1<<CS12)|(1<<CS10); // set timer CTC mode
    TIMSK = (1<<OCIE1A);
    //SetUpTim1A(0);
    #asm("sei")   
}

void SetUpTim1A(unsigned int Foc)    //set value OCR1A register
{
 unsigned int TimDiv;
 unsigned char ClockSelect=0;
 unsigned char i=0;
 for(i=0;i<=4;i++) {
    TimDiv=(F_CPU/(2*Foc*N[i])-1);
    if(TimDiv >= 0 && TimDiv<VFG_TIMER_MAX){
     ClockSelect=i+1;
     break;
     OCR1A = TimDiv;
     TCCR1B = (1<<WGM12) | ClockSelect;
    }
    }
}

interrupt [TIM1_COMPA] void timer1_compa_isr(void)
{
    VFG_PORT ^= (1<<VFG_PIN0);
}

void main(void)
{
 unsigned char nG;
 Tim1Init();

   
#asm("sei")
while(1)
{
        fG=200;
        SetUpTim1A(fG);
        delay_ms(50);
        }
}

interrupt [TIM1_COMPA] void timer1_compa_isr(void)
{
    VFG_PORT ^= (1<<VFG_PIN0);
}

#include <tiny2313.h>
#include <math.h>
#include <io.h>
#include <delay.h>

#define F_CPU (8000000)
#define   VFG_TIMER_MAX (65535)
#define   VFG_PIN0 PORTB0
#define   VFG_PIN1 PORTB1
#define   VFG_PIN2 PORTB2
#define   VFG_DDR DDRB
#define   VFG_PORT PORTB

unsigned int fG=100;
unsigned char nG;
unsigned int N[]={1,8,64,256,1024};

void Tim1Init(void)
{
    TCCR1A = (1<<COM1A0); //toggle on compare
    TCCR1B = (1<<WGM12)|(1<<CS12)|(1<<CS10); // set timer CTC mode
    TIMSK = (1<<OCIE1A);
    //SetUpTim1A(0);
    #asm("sei")   
}

void SetUpTim1A(unsigned int Foc)    //set value OCR1A register
{
 unsigned int TimDiv, OCRnx_calc=0;
 unsigned int ret_OCRnx=0;
 unsigned char ClockSelect=0;
 unsigned char i=0;
 for(i=0;i<=4;i++) {
    TimDiv = (F_CPU/(2*16*Foc*N[i])-1);
    OCRnx_calc = TimDiv;
    if(OCRnx_calc >= 0 && OCRnx_calc<VFG_TIMER_MAX){
     ClockSelect=i+1;
     break;
    }
 }
    ret_OCRnx = (unsigned int)OCRnx_calc;
    OCR1A = ret_OCRnx;
    TCCR1B = (1<<WGM12) | (ClockSelect<<CS10);
}

void UpdateTim1A(unsigned int freq) //хранение старого значения
{
   static unsigned int fG_old = 0;

   if (fG_old != freq)
   {
      SetUpTim1A(freq);
      fG_old = freq;
   }
}

interrupt [TIM1_COMPA] void timer1_compa_isr(void){
unsigned char msc=(1<<nG);
VFG_DDR = msc;
VFG_PORT = (VFG_PORT^msc)&(msc);
}

void main(void)
{
 static unsigned int fG_old = 0;
 Tim1Init();
 UpdateTim1A(fG);
 
#asm("sei")
for(;;) {
 if (fG_old != fG) {   //проверка, не изменилось ли старое значение
    SetUpTim1A(fG);
    fG_old = fG;
 }
 nG=0; //номер генератора
 fG=4;  //частота генератора
 SetUpTim1A(fG);
 delay_ms(50);
 }
}