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@@ -35,8 +35,8 @@
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.def msrH = r15
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.def temp = r16 ; ðàáî÷àÿ ïåðåìåííàÿ
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.def tmp1 = r17
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-.def cnt1 = r18 ; ðàáî÷èé ñ÷¸ò÷èê
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-.def cnt2 = r19 ; ñ÷¸ò÷èê öèêëîâ ÀÖÏ
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+.def cnt1 = r18 ; ðàáî÷èé ñ÷¸ò÷èê, ñ÷¸ò÷èê öèêëîâ ÀÖÏ
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+.def cnt2 = r19 ; ñ÷¸ò÷èê öèêëîâ Led_Out
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.def LEDN = r20
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; r21
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; r22
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@@ -68,8 +68,9 @@
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.equ SCK = 0
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.equ DATA = 1
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.equ LOCK = 2
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-.equ T1DIVL = 0x8F
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-.equ T1DIVH = 0xFD ; 0x10000-8MHz/64/200Hz
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+;.equ T1DIVL = 0x8F
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+;.equ T1DIVH = 0xFD ; 0x10000-8MHz/64/200Hz
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+.equ T0DIV = 0x83 ; 0x100-8MHz/256/250Hz
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.equ VREF = 500 ; îïîðíîå íàïðÿæåíèå * 10 ìÂ
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.equ SPH = 0x3e
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.equ DOT_BIT = 5 ; bit5 -- òî÷êà
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@@ -119,10 +120,10 @@ Buffer: .byte 2*BuffSize
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reti;jmp TIM1_CAPT ; Timer1 Capture Handler
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reti;jmp TIM1_COMPA ; Timer1 Compare A Handler
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reti;jmp TIM1_COMPB ; Timer1 Compare B Handler
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- rjmp TIM1_OVF ; Timer1 Overflow Handler
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+ reti;jmp TIM1_OVF ; Timer1 Overflow Handler
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reti;jmp TIM0_COMPA ; Timer0 Compare A Handler
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reti;jmp TIM0_COMPB ; Timer0 Compare B Handler
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- reti;jmp TIM0_OVF ; Timer0 Overflow Handler
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+ rjmp TIM0_OVF ; Timer0 Overflow Handler
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reti;jmp ANA_COMP ; Analog Comparator Handler
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rjmp ADCC ; ADC Conversion Handler
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; rjmp EE_RDY ; EEPROM Ready Handler
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@@ -136,25 +137,38 @@ RESET:
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out SPH,temp
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ldi temp,low(RAMEND)
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out SPL,temp; Set Stack Pointer to top of RAM
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-; âûêë. àíàëîã, êîìïàðàòîð
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+
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+;;; âûêë. àíàëîã, êîìïàðàòîð
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ldi temp,1<<ACD
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out ACSR,temp
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-; íàñòðîèì ÀÖÏ. îïîðà - Vcc, êàíàë 1, íåïðåðûâíîå ïðåîáðàçîâàíèå. temp=0b00100010
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+
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+;;; íàñòðîèì ÀÖÏ. îïîðà - Vcc, êàíàë 1, íåïðåðûâíîå ïðåîáðàçîâàíèå. temp=0b00100010
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ldi temp,1<<MUX0
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out ADMUX,temp
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ldi temp,(1<<ADEN)|(1<<ADSC)|(6<<ADPS0)
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out ADCSRA,temp
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-; timer1 - ÷àñòîòà 200 ãö, ïðè òàêòîâîé 8ÌÃö, ïðåñêàëåð=64
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- ldi temp,(3<<CS10)
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- out TCCR1B,temp
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- ldi temp,T1DIVH
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- out TCNT1H,temp
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- ldi temp,T1DIVL
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- out TCNT1L,temp ; çàïóñòèëè òàéìåð 1
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+
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+;;; òàéìåð0 èíòåðâàëû â 4 ìñåê (250 Hz). ïðåñêàëåð = 256
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+ ldi temp,(1<<CS02)
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+ out TCCR0B,temp
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+ ldi temp,T0DIV
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+ out TCNT0,temp ; çàïóñòèëè òàéìåð
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+; ïðåðûâàíèÿ îò òàéìåðîâ
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+ ldi temp,(1<<TOIE0)
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+ out TIMSK0,temp ; ðàçðåøèì ïðåðûâàíèå ïî ïåðåïîëíåíèþ
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+
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+;; timer1 - ÷àñòîòà 200 ãö, ïðè òàêòîâîé 8ÌÃö, ïðåñêàëåð=64
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+; ldi temp,(3<<CS10)
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+; out TCCR1B,temp
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+; ldi temp,T1DIVH
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+; out TCNT1H,temp
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+; ldi temp,T1DIVL
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+; out TCNT1L,temp ; çàïóñòèëè òàéìåð 1
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; ðàçðåøàåì ïðåðûâàíèå îò òàéìåðà
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- ldi temp,1<<TOIE1
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- out TIMSK1,temp
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-; init
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+; ldi temp,1<<TOIE1
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+; out TIMSK1,temp
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+
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+;;; init
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ldi LEDN,0b11101111 ; ïåðâûé èíäèêàòîð
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ldi temp,IND_LA
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out DISP_DDR,temp
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@@ -170,7 +184,8 @@ RESET:
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mov LED4,temp
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ldi bAddr,low(Buffer)
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clr bIdx
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-; Enable interrupts
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+
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+;;; Enable interrupts
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sei
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;******************************
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;;;;; Îñíîâíàÿ ïðîãðàììà
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@@ -178,14 +193,16 @@ BEGIN:
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;;; çàïóñêàåì èçìåðåíèÿ è ïðåîáðàçîâàíèÿ
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clr msrL
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clr msrH ; î÷èñòèëè õðàíèëèùå ðåçóëüòàòà
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- ldi cnt2,16 ; çàãðóçèëè ñ÷¸ò÷èê èçìåðåíèé
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+ ldi cnt1,16 ; çàãðóçèëè ñ÷¸ò÷èê èçìåðåíèé
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sbi ADCSRA,ADATE ; çàïóñê free running mode
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sbi ADCSRA,ADIE ; ðàçðåøàåì ïðåðûâàíèÿ îò ÀÖÏ
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sbi ADCSRA,ADSC ; çàïóñê íîâ. ïðåîáðàçîâàíèÿ
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+
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ML1:
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; rjmp PC+1 ; nop x 2 -- 1 world 2 takta. èëè sleep?
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- rcall WAIT_IRQ
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- tst cnt2 ; ãîíÿåì ïóñòîé öèêë ïîêà áóäóò ïðîèñõîäèòü 16 èçìåðåíèé
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+ rcall WAIT_IRQ ; îäèí öèêë èçìåðåíèÿ, ÅÌÍÈÏ áîëüøå 100 ìêñ...
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+ tst cnt1 ; ãîíÿåì ïóñòîé öèêë ïîêà áóäóò ïðîèñõîäèòü 16 èçìåðåíèé
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+
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brne ML1
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cbi ADCSRA,ADIE ; çàïðåùàåì ïðåðûâàíèÿ îò ÀÖÏ
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cbi ADCSRA,ADATE ; stop free running mode
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@@ -294,6 +311,7 @@ MakeDigit2:
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rcall OUT_NIBBL ; íèááë 0, ñîòûå
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;;; Êîíåö öèêëà
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+ rcall WAIT_IRQ
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rjmp BEGIN
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;******************************
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@@ -309,21 +327,6 @@ WAIT_IRQ:
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out MCUCR,temp ; ñî ñíà
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ret
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-;******************************
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-; âûäà¸ò â ïîðò 8 áèò èç temp, ïîðòèò cnt1
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-LEDOUT:
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- ldi cnt1,8 ; ñ÷åò÷èê áèò
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-LO1: cbi SER_PORT,SCK ; SCK=0
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- lsl temp ; ñòàðøèé áèò â ïåðåíîñ
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- brcc LO0 ; åñëè â ïåðåíîñå 0 — ïåðåéòè
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- sbi SER_PORT,DATA ; âûäàëè 1
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- rjmp LOE
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-LO0: cbi SER_PORT,DATA ; âûäàëè 0
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-LOE: sbi SER_PORT,SCK ; SCK=1, ñäâèã äàííûõ
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- dec cnt1
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- brne LO1
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- ret
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-
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;******************************
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;** ïåðåâîäèì ìëàäøèé íèááë temp â êîä äëÿ 7-ñãì èíä è êëàä¸ì åãî â îçó ïî àäð X
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OUT_NIBBL:
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@@ -393,13 +396,14 @@ bBCDx_3:ld temp,-Z ;get (Z) with pre-decrement
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;;;;; Îáðàáîò÷èêè ïðåðûâàíèé
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;******************************
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-; Timer1 Overflow Handler
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-TIM1_OVF:
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+; Timer0 Overflow Handler
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+TIM0_OVF:
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; âûâîäèì äàííûå íà 7-ìè ñåãìåíòíûå èíäèêàòîðû
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-; îòñ÷èòûâàåì 100 ìñåê èíòåðâàë äëÿ çàïóñêà èçìåðåíèé
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PUSHF
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-T1L1:
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+ ldi temp,T0DIV
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+ out TCNT0,temp ; ïåðåçàïóñòèëè òàéìåð 0
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+
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;***************************
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; âûâîä íà èíäèêàòîð î÷åðåäíîé öèôðû
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in temp,DISP_PORT
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@@ -407,22 +411,30 @@ T1L1:
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out DISP_PORT,temp ; ïîãàñèëè âñå èíäèêàòîðû
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cbi SER_PORT,LOCK ; ïîäãòîâèëè çàù¸ëêó
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ld temp,Y+ ; â òåìï - òåêóùàÿ öèôðà, àäðåñ=+1
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- rcall LEDOUT ; âûïèõíóëè î÷åðåäíîé áàéò â ðåãèñòð
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+
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+;;; âûïèõíåì î÷åðåäíîé áàéò â ðåãèñòð
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+ ldi cnt2,8 ; ñ÷åò÷èê áèò
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+LO1: cbi SER_PORT,SCK ; SCK=0
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+ lsl temp ; ñòàðøèé áèò â ïåðåíîñ
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+ brcc LO0 ; åñëè â ïåðåíîñå 0 — ïåðåéòè
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+ sbi SER_PORT,DATA ; âûäàëè 1
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+ rjmp LOE
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+LO0: cbi SER_PORT,DATA ; âûäàëè 0
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+LOE: sbi SER_PORT,SCK ; SCK=1, ñäâèã äàííûõ
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+ dec cnt2
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+ brne LO1
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+
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sbi SER_PORT,LOCK ; èç 0 â 1 -- çàù¸ëêèâàíèå äàííûõ â ðåãèñòðå
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in temp,DISP_PORT
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ori temp,IND_LA
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and temp,LEDN
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out DISP_PORT,temp ; âêëþ÷àåì î÷åðåäíîé èíäèêàòîð
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lsl LEDN ; ñäâèíóëè - ñëåäóþùèé èíäèêàòîð
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- brlo T1L2 ; âûøëè çà ãðàíèöû? ïðîâåðêà
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+ brlo T0L2 ; âûøëè çà ãðàíèöû? ïðîâåðêà
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ldi LEDN,0b11101111 ; äà, çàãðóæàåì íà÷àëüíîå çíà÷åíèå
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ldi YL,AtLED1 ; çàãðóæàåì àäðåñ 1-ãî èíäèêàòîðà
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-T1L2:
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- ldi temp,T1DIVH
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- out TCNT1H,temp
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- ldi temp,T1DIVL
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- out TCNT1L,temp ; ïåðåçàïóñòèëè òàéìåð 1
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+T0L2:
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POPF
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reti
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@@ -435,7 +447,7 @@ ADCC:
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add msrL,temp
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in temp,ADCH
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adc msrH,temp
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- dec cnt2
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+ dec cnt1
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reti
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;***************************
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@@ -465,13 +477,13 @@ TIM1_COMPA: ; Timer1 Compare A Handler
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TIM1_COMPB: ; Timer1 Compare B Handler
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reti
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-TIM0_COMPA: ; Timer0 Compare A Handler
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+TIM1_OVF: ; Timer1 Overflow Handler
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reti
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-TIM0_COMPB: ; Timer0 Compare B Handler
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+TIM0_COMPA: ; Timer0 Compare A Handler
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reti
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-TIM0_OVF: ; Timer0 Overflow Handler
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+TIM0_COMPB: ; Timer0 Compare B Handler
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reti
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ANA_COMP: ; Analog Comparator Handler
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Vladimir N. Shilov