#include"stm32f10x.h"
void delay(unsigned int i)
{
unsigned int a,b;
for(a=0;a++;a<i)
for(b=0;b++;b<i);
}
int main(void)
{
RCC_APB2ENR |=((1)<<3);
GPIOB->CRL&=((0x0f) <<(4*0));
GPIOB->CRL|=((1)<<(4*0));
while(1)
{
GPIOB->OD&=~(1<<0);
delay(0xffff);
GPIOB->ODR|=(1<<0);
}
} |
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