STM32F4XX与STM32F0XX编程差别

STM32F0与F4 GPIO初始化及中断设置

最新推荐文章于 2024-03-04 14:52:19 发布

转载最新推荐文章于 2024-03-04 14:52:19 发布 · 369 阅读

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原文链接：http://www.cnblogs.com/luckytimor/p/5403174.html

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#嵌入式

本文介绍了STM32F0和STM32F4系列微控制器中GPIO管脚的初始化配置过程，包括普通管脚与中断管脚的设置方法。通过具体的代码示例展示了如何进行GPIO的初始化，并设置了不同优先级的中断。

//普通管脚初始化

/*****************************************************************************
STM32F0
******************************************************************************/
void BELL_Init(void)
{

GPIO_InitTypeDef GPIO_InitStruct;
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_2;
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_Level_2;
GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_Init(GPIOA, &GPIO_InitStruct);

GPIO_ResetBits(GPIOA, GPIO_Pin_2);
}

/*stm32f4*/
void BEEP_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;

RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOF, ENABLE);//Ê¹ÄÜGPIOFÊ±ÖÓ
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;//ÆÕÍ¨Êä³öÄ£Ê½
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;//ÍÆÍìÊä³ö
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;//100MHz
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_DOWN;//ÏÂÀ
GPIO_Init(GPIOF, &GPIO_InitStructure);//³õÊ¼»¯GPIO

GPIO_ResetBits(GPIOF,GPIO_Pin_8); //·äÃùÆ÷¶ÔÓ¦Òý½ÅGPIOF8ÀµÍ£¬
}

//中断管脚初始化

//F0

NVIC_InitStructure.NVIC_IRQChannel=TIM3_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPriority=0x00;
NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE;
NVIC_Init(&NVIC_InitStructure);

//F4

NVIC_InitStructure.NVIC_IRQChannel=TIM3_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=0x01;
NVIC_InitStructure.NVIC_IRQChannelSubPriority=0x03;
NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE;
NVIC_Init(&NVIC_InitStructure);

转载于:https://www.cnblogs.com/luckytimor/p/5403174.html