Версия 13:08, 9 февраля 2010

@@ Строка 1: / Строка 1: @@
- #include <stdint.h>
- #include <avr/io.h>
- #include <avr/interrupt.h>
- //MISO - RCK;
- #define LATCH 0x40
-                                  /*0*/ /*1*/ /*2*/ /*3*/ /*4*/ /*5*/ /*6*/ /*7*/ /*8*/ /*9*/ /*.*/
- static const uint8_t LEDS[11] = {~0x5f,~0x42,~0x37,~0x76,~0x6a,~0x7c,~0x7d,~0x46,~0x7f,~0x7e,~0x00 };
- static volatile uint8_t i = 0;
- void Indicate (void)
- {
-    SPCR |= _BV(SPE);
-    register uint8_t k;
-    for (k = 0; k < 9; k++)
-    {
-        SPDR = i == k  ? LEDS[k+1] : 0xFF;
-        while (!(SPSR & _BV(SPIF)));
-    }
-    SPCR &= ~_BV(SPE);
-    PORTB |= LATCH;
-    PORTB &= ~LATCH;
- }
- ISR (TIMER1_COMPA_vect)
- {
-    Indicate();
-    if (i++ == 9)
-        i = 0;
- }
- int main (void)
- {
-    DDRB  = 0xff;
-    PORTB = 0x00;
-    SPCR  = _BV(SPE) | _BV(MSTR) | _BV(SPR1);
-    TCCR1B = _BV(WGM12) | _BV(CS12);
-    TIMSK  = _BV(OCIE1A);
-    OCR1A  = 11250;
-    sei();
-    while (1);
- }