stm32f10x_exti.cpp

来自「STM32 USB HID」· C++ 代码 · 共 28 行

#include"stm32f10x_rcc.h"
#include"stm32f10x_nvic.h"
#include"stm32f10x_gpio.h"
//-----------------------------------------------------------------------------
#include"stm32f10x_exti.hpp"
#include"stdio.h"
//-----------------------------------------------------------------------------
void EXTI_Configuration()
{	
	RCC_APB2ENR_BITS[GPIOA_EN] =1;
	
	//相应引脚配置
	{	//输入浮空
		GPIOA_CRL_BITS[CNF2_1] =0;
		GPIOA_CRL_BITS[CNF2_0] =1;
		
		GPIOA_CRL_BITS[MODE2_1]=0;
		GPIOA_CRL_BITS[MODE2_0]=0;
	}
	
	//EXIT
	EXTI_IMR_BITS[MR2] =1;
	EXTI_FTSR_BITS[TR2]=1;
	
	//相应中断使能
	NVIC_SETENA0|=EN_EXTI_2;
}