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STC12LE5616AD Datasheet(PDF) 148 Page - STCmicro Technology Co,.Ltd |
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STC12LE5616AD Datasheet(HTML) 148 Page - STCmicro Technology Co,.Ltd |
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148 / 377 page  2. Demostrate the Power-Down Mode waked up by Falling Edge of External Interrupt 0 C program /*------------------------------------------------------------------------------------*/ /* --- STC MCU International Limited ---------------------------------------*/ /* --- STC 1T Series MCU Power-Down wakeup by INT0 Demo -------*/ /* article, please specify in which data and procedures from STC -------*/ /*-------------------------------------------------------------------------------------*/ #include "reg51.h" #include "intrins.h" //External interrupt0 service routine void exint0( ) interrupt 0 //INT0, interrupt 0 (location at 0003H) { } void main() { IT0 = 1; //set INT0 interrupt type (1:Falling 0:Low level) EX0 = 1; //enable INT0 interrupt EA = 1; //open global interrupt switch while (1) { INT0 = 1; //ready read INT0 port while (!INT0); //check INT0 _nop_(); _nop_(); PCON = 0x02; //MCU power down _nop_(); _nop_(); P1++; } } 148 |
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