多功能at89c2051倒計時器-資料下載頁

　　

【正文】 010B。2db 11010110B。3db 10110100B。4db 01110110B。5db 01111110B。6db 11000100B。7db 11111110B。8db 11110110B。9DB 00000000B。BLACK=0aHDB 01111000B。f=bdB 11101100B。e=CDB 00110000B。1,=D。**********************************。delay。********************************timer_1ms:push bmov r2,01ha_1: mov b,020hb_1: djnz b,b_1djnz r2,a_1pop bret。******************。 TOT1_INT T1定時器完成100毫秒定時(6M晶振)。******************T1: setb tr0PUSH ACC 。程序參數保護PUSH b 。push psw inc time_led1mov a,time_led1cjne a,5d,t1_n1。判斷time_led1中是否滿5?mov time_led1,00hcpl timer_50ms。滿50毫秒后對50毫秒標志位取反。 mov a,timers。 cjne a,10d ,t1_n11。判斷timers中是否滿10?。t1_n12: 。 clr timer_1s。滿1秒后對1秒標志位取反sjmp t1_n1。*********************************t1_end_2: ajmp t1_end_1。********************************。t1_n11: jc t1_n12 。 setb timer_1st1_n1: djnz timers ,t1_end_2 mov timers,tisinc time_led3mov a,time_led3cjne a,03d,t1_secmov time_led3,00hcpl timer_3s t1_sec: inc secmov a,seccjne a,60d ,t1_endmov sec,00djnb al1_f ,t1_al1mov a,al1_min_tmov b,al1_hour_tmov c ,aal1_facall al_allmov al1_min_t,amov al1_hour_t,bmov aal1_f,ct1_al1:jnb al2_f ,t1_al2mov a,al2_min_tmov b,al2_hour_tmov c ,aal2_facall al_allmov al2_min_t,amov al2_hour_t,bmov aal2_f,ct1_al2:jnb al3_f ,t1_al3mov a,al3_min_tmov b,al3_hour_tmov c ,aal3_facall al_allmov al3_min_t,amov al3_hour_t,bmov aal3_f,ct1_al3:T1_END: t1_end_1:。************************************ sub t0 timerclr cclr tr0mov b,timer_nomov a,tiladd a,tl0addc a,b 。*******have 5 ordermov tl1 ,amov a,tihaddc a, th0mov th1,amov th0,00hmov tl0,00hsetb tr1 pop pswpop b 。pop acc 。RETI 。************************************beep:clr hamov r6,060hbee_2: mov r4,0ffhbee_1:djnz r4 ,bee_1djnz r6,bee_2setb haret。***************************************stop: mov a,0ffhmov p1,amov p3,amov a,pconorl a,00000010bmov pcon,aretal_out_way:jnb aal1_f ,al_out1mov r3,0ffhpnp_3: mov b,060h pnp_4:push bacall led_jmp_1。led_timesmov c,timer_50msmov ha ,cpop bdjnz b ,pnp_4djnz r3 ,pnp_3mov c,al2_forl c,al3_fjc al_out54 acall stop al_out54:clr aal1_fclr al1_fsjmp al_out4al_out1:jnb aal2_f ,al_out2clr pnp1mov r3,0ffhpnp_1: mov b,020h pnp_2:push bacall led_jmp_1。led_timespop bdjnz b ,pnp_2djnz r3 ,pnp_1setb pnp1 mov c,al1_forl c,al3_fjc al_out64 acall stop al_out64:clr aal2_fclr al2_fsjmp al_out4al_out2:jnb aal3_f ,al_out3clr pnp2 al_out3:jnb turn_f ,al_out4acall stopal_out4:ret。*******************************************al_all:jc al_all_1dec ajnz al_all_1mov a,bjz al_all_3dec bsjmp al_all_2al_all_3:setb csjmp al_all_1al_all_2: mov a,60dal_all_1:ret。看懂別人寫的匯編程序是很困難的事情,我希望有興趣的網友能幫我完成這段程序的中文注釋,這樣可以使初學者能夠更加容易學會編程. 這是上面程序匯編以后獲得的編程器燒寫文件：下載燒寫文件的方法：將鼠標移到燒寫文件的超級鍵連處，點擊鼠標的右鍵，選擇“目標另存為（A）...”保存文件類型中不要選擇“文本文件”，應該選擇“所有文件”，這樣就能獲得*.hex文件了。 相關鍵連：AT89C2051的智能時鐘相關鍵連：MEAPC可自編程嵌入式控制器相關鍵連：AT89C2051的倒計時器