这个是中端处理
void Buttom_conf(void)
{
//PD_DDR&=0x1f;/*设置数据方向寄存器 1为输出,0为输入*/
//PD_CR1|=0xe0;/*设置上拉输入*/
//PD_CR2|=0xe0;/*设置中断*/
//EXTI_CR1 &= (uint8_t)(~MASK_EXTI_CR1_PDIS);
//EXTI_CR1 |= (uint8_t)((uint8_t)(0x02) << 6);/*设置为下降沿触发中断*/
PD_DDR&=0xef;
PD_CR1|=0x80;
PD_CR2&=0xef;
EXTI_CR2=0x00;
EXTI_CR2 |=0x02;
PD_CR2 |= 0x80;
}
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