unsigned char i;
flash unsigned char sin_wave[256]={
127, 130, 133, 136, 139, 143, 146, 149,
152, 155, 158, 161, 164, 167, 170, 173,
176, 178, 181, 184, 187, 190, 192, 195,
198, 200, 203, 205, 208, 210, 212, 215,
217, 219, 221, 223, 225, 227, 229, 231,
233, 234, 236, 238, 239, 240, 242, 243,
244, 245, 247, 248, 249, 249, 250, 251,
252, 252, 253, 253, 253, 254, 254, 254,
254, 254, 254, 254, 253, 253, 253, 252,
252, 251, 250, 249, 249, 248, 247, 245,
244, 243, 242, 240, 239, 238, 236, 234,
233, 231, 229, 227, 225, 223, 221, 219,
217, 215, 212, 210, 208, 205, 203, 200,
198, 195, 192, 190, 187, 184, 181, 178,
176, 173, 170, 167, 164, 161, 158, 155,
152, 149, 146, 143, 139, 136, 133, 130,
127, 124, 121, 118, 115, 111, 108, 105,
102, 99, 96, 93, 90, 87, 84, 81,
78, 76, 73, 70, 67, 64, 62, 59,
56, 54, 51, 49, 46, 44, 42, 39,
37, 35, 33, 31, 29, 27, 25, 23,
21, 20, 18, 16, 15, 14, 12, 11,
10, 9, 7, 6, 5, 5, 4, 3,
2, 2, 1, 1, 1, 0, 0, 0,
0, 0, 0, 0, 1, 1, 1, 2,
2, 3, 4, 5, 5, 6, 7, 9,
10, 11, 12, 14, 15, 16, 18, 20,
21, 23, 25, 27, 29, 31, 33, 35,
37, 39, 42, 44, 46, 49, 51, 54,
56, 59, 62, 64, 67, 70, 73, 76,
78, 81, 84, 87, 90, 93, 96, 99,
102, 105, 108, 111, 115, 118, 121, 124
};
// Timer 1 overflow interrupt service routine
interrupt [TIM1_OVF] void timer1_ovf_isr(void)
{
//Выбор частоты генерации
TCNT1H=0x98;
TCNT1L=0xe1;
// Place your code here
PORTB=sin_wave[i];
i++;
}
// Declare your global variables here
void main(void)
{
// Declare your local variables here
// Crystal Oscillator division factor: 1
#pragma optsize-
CLKPR=0x80;
CLKPR=0x00;
#ifdef _OPTIMIZE_SIZE_
#pragma optsize+
#endif
// Input/Output Ports initialization
// Port A initialization
// Func2=Out Func1=Out Func0=Out
// State2=0 State1=0 State0=0
PORTA=0x00;
DDRA=0x07;
// Port B initialization
// Func7=Out Func6=Out Func5=Out Func4=Out Func3=Out Func2=Out Func1=Out Func0=Out
// State7=0 State6=0 State5=0 State4=0 State3=0 State2=0 State1=0 State0=0
PORTB=0x00;
DDRB=0xFF;
// Port D initialization
// Func6=Out Func5=Out Func4=Out Func3=In Func2=In Func1=In Func0=In
// State6=0 State5=0 State4=0 State3=P State2=P State1=P State0=P
PORTD=0x0F;
DDRD=0x70;
// Timer/Counter 0 initialization
// Clock source: System Clock
// Clock value: Timer 0 Stopped
// Mode: Normal top=FFh
// OC0A output: Disconnected
// OC0B output: Disconnected
TCCR0A=0x00;
TCCR0B=0x00;
TCNT0=0x00;
OCR0A=0x00;
OCR0B=0x00;
// Timer/Counter 1 initialization
// Clock source: System Clock
// Clock value: 6000,000 kHz
// Mode: Normal top=FFFFh
// OC1A output: Discon.
// OC1B output: Discon.
// Noise Canceler: Off
// Input Capture on Falling Edge
// Timer 1 Overflow Interrupt: On
// Input Capture Interrupt: Off
// Compare A Match Interrupt: Off
// Compare B Match Interrupt: Off
TCCR1A=0x00;
TCCR1B=0x01;
//Выбор частоты генерации
TCNT1H=0x98;
TCNT1L=0xe1;
ICR1H=0x00;
ICR1L=0x00;
OCR1AH=0x00;
OCR1AL=0x00;
OCR1BH=0x00;
OCR1BL=0x00;
// External Interrupt(s) initialization
// INT0: Off
// INT1: Off
// Interrupt on any change on pins PCINT0-7: Off
GIMSK=0x00;
MCUCR=0x00;
// Timer(s)/Counter(s) Interrupt(s) initialization
TIMSK=0x80;
// Universal Serial Interface initialization
// Mode: Disabled
// Clock source: Register & Counter=no clk.
// USI Counter Overflow Interrupt: Off
USICR=0x00;
// Analog Comparator initialization
// Analog Comparator: Off
// Analog Comparator Input Capture by Timer/Counter 1: Off
ACSR=0x80;
i=0;
// Global enable interrupts
#asm("sei")
while (1)
{
// Place your code here
};
}
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