/*-------------------------------------------------------------------------------
www.ECA.ir
LPC1768 Dev Board Rev.A
--------------------------------------------------------------------------------*/
#include "lpc17xx.h"
unsigned int j;
void delay(){
int i=3000000;
while(i--);
}
void EINT0_IRQHandler(void){
LPC_SC->EXTINT = 1;
j++;
if ( j & 0x01 )
{
LPC_GPIO2->FIOSET = 0x30;
LPC_GPIO2->FIOCLR = 0xC0;
}
else
{
LPC_GPIO2->FIOSET = 0xC0;
LPC_GPIO2->FIOCLR = 0x30;
}
}
int main(){
LPC_PINCON->PINSEL4 = 1<<20;
LPC_GPIO2->FIODIR = 0x000000FF;
LPC_GPIO2->FIOCLR = 0x000000FF;
LPC_SC->EXTMODE = 1 ;
LPC_SC->EXTPOLAR = 0 ;
NVIC_EnableIRQ(EINT0_IRQn);
while(1){
LPC_GPIO2->FIOSET0 = 0x0f ;
delay();
LPC_GPIO2->FIOCLR0 = 0x0f ;
delay();
}
}
LPC_SC->EXTINT = 1;
void EINT3_IRQHandler()
{
LPC_SC->EXTINT = 0x00000008;
LED_Off();
}
void EINT2_IRQHandler()
{
LPC_SC->EXTINT = 0x00000004;
LED_Off();
}
دیدگاه