avr單片機(jī)的數(shù)碼管顯示時(shí)鐘設(shè)計(jì)

avr單片機(jī)的數(shù)碼管顯示時(shí)鐘設(shè)計(jì)//數(shù)碼管數(shù)據(jù)P0口，數(shù)碼管控制P2口#include#include#includePACe.h》#include#include

#definecodePROGMEM#defineucharunsignedchar#defineuintunsignedintcodeconstucharLED_7［16］={0x28，0x7E，0xA2，0x62，0x74，0x61，0x21，0x7A，0x20，0x60，0xff};//commonof+codeconstucharposition［8］={0x7f，0xbf，0xdf，0xef，0xf7，0xfb，0xfd，0xfe};uchartime［4］;//時(shí)間計(jì)數(shù)volatileuchardisp_buff［8］;//顯示緩沖區(qū)volatileuchartime_count=0;volatileucharpoint_on=0;volatileucharposit=0;volatileuchartime_10ms_ok=0;voidtime_to_dispbuff（void）;voidtime1_init（void）;voidtime0_init（void）;voiddisplay（void）;intmain（void）{PORTA=0xff;DDRA=0xff;PORTC=0xff;DDRC=0xff;time［0］=00;//1/10sectime［1］=30;//sectime［2］=59;//minutetime［3］=23;//hourtime_to_dispbuff（）;time1_init（）;sei（）;while（1）{if（time_10ms_ok）{time_10ms_ok=0;if（++time［0］》=100）{time［0］=0;point_on=~point_on;if（++time［1］》=60）{time［1］=0;if（++time［2］》=60）{time［2］=0;if（++time［3］》=24）{time［3］=0;}}}}time_to_dispbuff（）;}}}voidtime0_init（void）{TCCR0=0x05;TCNT0=0xea;TIFR|=0x02;TIMSK|=0x02;}voidtime1_init（void）{TCCR1A=0x00;TCCR1B=0x01;TCNT1=0xa99a;//TCNT1H=0xa9;//TCNT1L=0x9a;TIFR|=0x80;TIMSK|=0x80;}SIGNAL（SIG_OVERFLOW1）{TCNT1=0xa99a;display（）;if（++time_count》=5）{time_10ms_ok=1;time_count=0;}}voiddisplay（void）{PORTC=0xff;PORTA=pgm_read_byte（&led_7［disp_buff［posit］］）;if（point_on&&（（posit==2）||（posit==4）||（posit==6）））PORTA&=0x7f;PORTC=pgm_read_byte（&position［posit］）;if（++posit》=8）posit=0;}voidtime_to_dispbuff（void）{uchari，j=0