隨著學(xué)習(xí)的深入，漸漸發(fā)現(xiàn)，編程時(shí)更多的工作是不斷的配置寄存器，做著許多重復(fù)的工作。所以就感覺(jué)很有必要把經(jīng)常使用的寄存器、配置結(jié)構(gòu)羅列出來(lái)，以方便使用?。∵@是其中的一部分，其他的慢慢來(lái)
本文引用地址：http://butianyuan.cn/article/201611/321616.htm本頁(yè)所包含的配置函數(shù)有：
void SysTick_Configuration(void)；
void GPIO_Configuration(void)；
void EXTI_Configuration(void)；
void NVIC_Configuration(void)；
void RCC_Configuration(void)；
void IWDG_Configuration(void)；
//同時(shí)需要配置的結(jié)構(gòu)體變量
GPIO_InitTypeDef GPIO_InitStructure;
EXTI_InitTypeDef EXTI_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
*******//Cortex系統(tǒng)定時(shí)器（SysTick）*********************
*******************************************************
*******************************************************
void SysTick_Configuration(void)
{
/
//選擇系統(tǒng)定時(shí)器（SysTick）的時(shí)鐘源
SysTick_CLKSourceConfig(SysTick_CLKSource_HCLK);
SysTick_SetReload(72000);
SysTick_ITConfig(ENABLE);
}
*********///GPIO的配置程序***************************************
******************************************************************
*******************************************************************
void GPIO_Configuration(void) void RCC_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6|GPIO_Pin_7|GPIO_Pin_8|GPIO_Pin_9;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(GPIOC, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOB, &GPIO_InitStructure);
}
//中斷線路初始化
void EXTI_Configuration(void)
{
EXTI_InitStructure.EXTI_Line = EXTI_Line9;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
EXTI_InitStructure.EXTI_Line = EXTI_Line13;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
}
///嵌套中斷向量NVIC**********************************
/
GPIO_EXTILineConfig(GPIO_PortSourceGPIOB, GPIO_PinSource9);
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
NVIC_InitStructure.NVIC_IRQChannel=EXTI0_IRQChannel;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority=0;
NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE;
NVIC_Init(&NVIC_InitStructure);
//為EXTI_Line9使能并配置中斷向量
//為EXTI_Line0使能并配置中斷向量
GPIO_EXTILineConfig(GPIO_PortSourceGPIOB, GPIO_PinSource9);
NVIC_InitStructure.NVIC_IRQChannel=EXTI9_5_IRQChannel;
NVIC_Init(&NVIC_InitStructure);
//為EXTI_Line9使能并配置中斷向量
//為EXTI_Line13使能并配置中斷向量
GPIO_EXTILineConfig(GPIO_PortSourceGPIOB, GPIO_PinSource9);
NVIC_InitStructure.NVIC_IRQChannel=EXTI15_10_IRQChannel;
NVIC_Init(&NVIC_InitStructure);
}
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