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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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STC89LE52RC 数据表(PDF) 108 Page - STCmicro Technology Co,.Ltd |
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STC89LE52RC 数据表(HTML) 108 Page - STCmicro Technology Co,.Ltd |
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108 / 165 page  ACALL SET_T2_OUT_SPEED ACALL DELAY ACALL PAUSE ;Pause in order to observation WAIT2: SJMP WAIT2 ;dynamic stop ;------------------------------------------------------------------------------- DELAY: MOV R1, #0 MOV R2, #0 MOV R3, #30 DELAY_LOOP: DJNZ R1, DELAY_LOOP DJNZ R2, DELAY_LOOP DJNZ R3, DELALY_LOOP RET ;------------------------------------------------------------------------------- SET_T2_OUT_MODE: ;Set Timer2 as pulse output mode MOV T2CON, #0 ;Set Timer 2 as "timer" mode MOV T2MOD, #02 ;0000,0010, enable ;Timer 2 overflow pulse outputting on P1.0 ;------------------------------------------------------------------------------- SET_T2_OUT_SPEED: ;Set Timer 2 pulse output velocity CLR TR2 ;Disable Timer 2 MOV RCAP2H, DPH MOV RCAP2L, DPL SETB TR2 ;Triggle Timer 2 RET ;------------------------------------------------------------------------------- PAUSE: ;Close Timer 2 function CLR TR2 MOV P1, #0FFH ;turn off P1 port LED ACALL DELAY RET ;------------------------------------------------------------------------------- END ;------------------------------------------------------------------------------- 108 |
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