【文章內(nèi)容簡介】 o setW_Second1check2 btfsc porta,0 。測開關(guān)sw1按下否？是，跳過下條指令 goto setW_Minute 。否！則循環(huán)檢測 call delay btfsc porta,0 。再次測開關(guān)sw1按下否？是，跳過下條指令 goto check2 。否！則循環(huán)檢測 incf W_Minute,1 。分針加1 movlw d39。6039。 subwf W_Minute,0 ?？词欠竦扔?0 btfsc status,Z clrf W_Minute movf W_Minute,0 movwf portc check3 btfss porta,0 。測開關(guān)sw1斷開否？是，跳過下條指令 goto check3 。否！則循環(huán)檢測 call delay btfss porta,0 。再次測開關(guān)sw1斷開否？是，跳過下條指令 goto check3 。否！則循環(huán)檢測 goto setW_Minute 。返回setW_Second1 btfss porta,1 goto setW_Second1 call delay btfss porta,1 goto setW_Second1setW_Second btfss porta,1 。sw2是否按下 goto begincheck4 btfsc porta,0 。測開關(guān)sw1按下否？是，跳過下條指令 goto setW_Second 。否！則循環(huán)檢測 call delay btfsc porta,0 。再次測開關(guān)sw1按下否？是，跳過下條指令 goto check4 。否！則循環(huán)檢測 incf W_Second,1 。秒針加1 movlw d39。6039。 subwf W_Second,0 ?？词欠竦扔?0 btfsc status,Z clrf W_Second movf W_Second,0 movwf portc check5 btfss porta,0 。測開關(guān)sw1斷開否？是，跳過下條指令 goto check5 。否！則循環(huán)檢測 call delay btfss porta,0 。再次測開關(guān)sw1斷開否？是，跳過下條指令 goto check5 。否！則循環(huán)檢測 goto setW_Second 。返回begin call tbcd。顯示時間。 call Set_DS1302rsrn movlw d39。2039。 movwf readn。20圈讀一次時間 show movlw d39。2039。 subwf readn,0 btfsc status,Z call Get_DS1302 call bcdt decf readn,1 clrf counter。指針位置計(jì)數(shù)器清零 judge call clearc。清表盤 movlw d39。11939。 subwf counter,0 btfsc status,Z goto rsrn 。判斷指針位置計(jì)數(shù)器是否達(dá)到119。***************是否顯示刻度*************** movlw d39。039。 subwf counter,0 btfsc status,Z call draw2_0 movlw d39。139。 subwf counter,0 btfsc status,Z call draw2_1 movlw d39。239。 subwf counter,0 btfsc status,Z call draw2_2 movlw d39。339。 subwf counter,0 btfsc status,Z call draw2_3 movlw d39。1039。 subwf counter,0 btfsc status,Z call drawgra movlw d39。2039。 subwf counter,0 btfsc status,Z call drawgra movlw d39。2739。 subwf counter,0 btfsc status,Z call draw3_0 movlw d39。2839。 subwf counter,0 btfsc status,Z call draw3_1 movlw d39。2939。 subwf counter,0 btfsc status,Z call draw3_2 movlw d39。3039。 subwf counter,0 btfsc status,Z call draw3_3 movlw d39。3139。 subwf counter,0 btfsc status,Z call draw3_4 movlw d39。3239。 subwf counter,0 btfsc status,Z call draw3_5 movlw d39。3339。 subwf counter,0 btfsc status,Z call draw3_6 movlw d39。4039。 subwf counter,0 btfsc status,Z call drawgra movlw d39。5039。 subwf counter,0 btfsc status,Z call drawgra movlw d39。5839。 subwf counter,0 btfsc status,Z call draw6_0 movlw d39。5939。 subwf counter,0 btfsc status,Z call draw6_1 movlw d39。6039。 subwf counter,0 btfsc status,Z call draw6_2 movlw d39。6139。 subwf counter,0 btfsc status,Z call draw6_3 movlw d39。6239。 subwf counter,0 btfsc status,Z call draw6_4 movlw d39。7039。 subwf counter,0 btfsc status,Z call drawgra movlw d39。8039。 subwf counter,0 btfsc status,Z call drawgra movlw d39。8739。 subwf counter,0 btfsc status,Z call draw9_0 movlw d39。8839。 subwf counter,0 btfsc status,Z call draw9_1 movlw d39。8939。 subwf counter,0 btfsc status,Z call draw9_2 movlw d39。9039。 subwf counter,0 btfsc status,Z call draw9_3 movlw d39。9139。 subwf counter,0 btfsc status,Z call draw9_4 movlw d39。9239。 subwf counter,0 btfsc status,Z call draw9_5 movlw d39。9339。 subwf counter,0 btfsc status,Z call draw9_6 movlw d39。10039。 subwf counter,0 btfsc status,Z call drawgra movlw d39。11039。 subwf counter,0 btfsc status,Z call drawgra movlw d39。11639。 subwf counter,0 btfsc status,Z call draw1_0 movlw d39。11739。 subwf counter,0 btfsc status,Z call draw1_1 movlw d39。11839。 subwf counter,0 btfsc status,Z call draw1_2。***************是否顯示秒針*************** movf sec,0 movwf se addwf se,1 movf se,0 subwf counter,0 btfsc status,Z call drawsec clrf se btfss jumpdec,0 goto dec_min goto sd04。***************是否顯示分針***************dec_min movf min,0 movwf minn addwf minn,1 movf minn,0 subwf counter,0 btfsc status,Z call drawmin clrf min