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ecol 2020-05-14 21:50:35 +08:00
parent b4038be235
commit 42bd64a755
12 changed files with 2857 additions and 93 deletions
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2
USER/Delay/Delay.c
View File

@ -1,6 +1,6 @@
#include "Delay.h"
/*有参数延时函数*/
/*有参数延时函数*/
void delay(__IO uint32_t nCount)
{
for (; nCount != 0; nCount--);

2
USER/Delay/Delay.h
View File

@ -3,7 +3,7 @@
#include "stm32f10x.h"
void delay(__IO uint32_t nCount); //有参数的延时函数
void delay(__IO uint32_t nCount); //有参数的延时函数

63
USER/Key/Key.c
View File

@ -1,12 +1,14 @@
#include "Key.h"
#include "Delay.h"
#include "bsp_usart.h"
u8 flag = 0;
/**-------------------------------------------------------
* @函数名 KEY_INIT
* @功能 按键初始化
* @返回值 无
* @函数名 KEY_INIT
* @功能 按键初始化
* @返回值 无
***------------------------------------------------------*/
void KEY_INIT()
{
@ -15,23 +17,23 @@ void KEY_INIT()
}
/**-------------------------------------------------------
* @函数名 KEY_GPIO_INIT
* @功能 按键GPIO初始化
* @返回值 无
* @函数名 KEY_GPIO_INIT
* @功能 按键GPIO初始化
* @返回值 无
***------------------------------------------------------*/
void KEY_GPIO_INIT(){
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(KEY_CLOCK, ENABLE); //使能对应端口时钟
RCC_APB2PeriphClockCmd(KEY_CLOCK, ENABLE); //使能对应端口时钟
GPIO_InitStructure.GPIO_Pin = KEY_Pin;//KEY_Pin
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; //设置成上拉输入
GPIO_Init(KEY_PORT, &GPIO_InitStructure);//初始化key_GPIO
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; //设置成上拉输入
GPIO_Init(KEY_PORT, &GPIO_InitStructure);//初始化key_GPIO
}
/**-------------------------------------------------------
* @函数名 KEY_NVIC_INIT
* @功能 按键按下时为低电平0
* @返回值 无
* @函数名 KEY_NVIC_INIT
* @功能 按键按下时为低电平0
* @返回值 无
***------------------------------------------------------*/
void KEY_NVIC_INIT()
{
@ -40,56 +42,57 @@ void KEY_NVIC_INIT()
/* 初始化KEY按键为中断模式 */
/* 初始化KEY按键为中断模式 */
/* Connect Button EXTI Line to Button GPIO Pin */
/* 将KEY按键对应的管脚连接到内部中断线 */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO,ENABLE); //使能复用功能时钟
/* 将KEY按键对应的管脚连接到内部中断线 */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO,ENABLE); //使能复用功能时钟
//GPIOE.2 中断线以及中断初始化配置 下降沿触发
//GPIOE.2 中断线以及中断初始化配置 下降沿触发
GPIO_EXTILineConfig(KEY_PORT_SOURCE,KEY_PIN_SOURCE);
EXTI_InitStructure.EXTI_Line=KEY_EXIT_LINE; //KEY2
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure); //根据EXTI_InitStruct中指定的参数初始化外设EXTI寄存器
EXTI_Init(&EXTI_InitStructure); //根据EXTI_InitStruct中指定的参数初始化外设EXTI寄存器
/* Enable and set Button EXTI Interrupt to the lowest priority */
NVIC_InitStructure.NVIC_IRQChannel = KEY_NVIC_IRQChannel; //使能按键WK_UP所在的外部中断通道
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x02; //抢占优先级2，
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x00; //子优先级0
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //使能外部中断通道
NVIC_InitStructure.NVIC_IRQChannel = KEY_NVIC_IRQChannel; //使能按键WK_UP所在的外部中断通道
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x02; //抢占优先级2，
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x00; //子优先级0
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //使能外部中断通道
NVIC_Init(&NVIC_InitStructure);
}
/**-------------------------------------------------------
* @函数名 EXTI3_IRQHandler
* @功能 处理外部中断线3的中断，按键1中断处理函数
* @参数 无
* @返回值 无
* @函数名 EXTI3_IRQHandler
* @功能 处理外部中断线3的中断，按键1中断处理函数
* @参数 无
* @返回值 无
***------------------------------------------------------*/
void KEY_NVIC_Handler(void) /* Key 1 */
{
if(EXTI_GetITStatus(KEY_EXIT_LINE) != RESET)
{
/* 延迟去抖 */
/* 延迟去抖 */
delay(150);
if(KEY == 0)
{
/* 改变指示灯状态 */
/* 改变指示灯状态 */
flag = !flag;
printf("\r\n开关状态改变为：%d\r\n",!flag);
}
/* 等待按键释放 */
/* 等待按键释放 */
while(KEY == 0);
/* 延迟去抖 */
/* 延迟去抖 */
delay(150);
/* Clear the EXTI Line 4 */
/* 清除中断挂起标志位，否则会被认为中断没有被处理而循环再次进入中断 */
/* 清除中断挂起标志位，否则会被认为中断没有被处理而循环再次进入中断 */
EXTI_ClearITPendingBit(KEY_EXIT_LINE);
}
}

8
USER/Key/Key.h
View File

@ -7,7 +7,7 @@
#define KEY_Pin GPIO_Pin_6
#define KEY_PORT GPIOA
#define KEY_CLOCK RCC_APB2Periph_GPIOA
#define KEY GPIO_ReadInputDataBit(KEY_PORT,KEY_Pin)//读取按键0
#define KEY GPIO_ReadInputDataBit(KEY_PORT,KEY_Pin)//读取按键0
#define KEY_EXIT_LINE EXTI_Line6
#define KEY_PIN_SOURCE GPIO_PinSource6
@ -17,9 +17,9 @@
extern u8 flag;
void KEY_INIT(void); //按键初始化
void KEY_NVIC_INIT(void); //按键中断初始化
void KEY_GPIO_INIT(void); //按键GPIO初始化
void KEY_INIT(void); //按键初始化
void KEY_NVIC_INIT(void); //按键中断初始化
void KEY_GPIO_INIT(void); //按键GPIO初始化
#endif

20
USER/Sys/Sys.c
View File

@ -1,27 +1,27 @@
#include "Sys.h"
/*RCC时钟初始化*/
/*RCC时钟初始化*/
void RCC_Configuration(void)
{
RCC_DeInit(); //重设RCC寄存器为缺省值
/* 开启HSI 即内部晶振时钟 */
RCC_DeInit(); //重设RCC寄存器为缺省值
/* 开启HSI 即内部晶振时钟 */
RCC->CR |= (uint32_t)0x00000001;
/*选择HSI为PLL的时钟源HSI必须2分频给PLL*/
/*选择HSI为PLL的时钟源HSI必须2分频给PLL*/
RCC->CFGR |= (uint32_t)RCC_CFGR_PLLSRC_HSI_Div2;
/*PLLCLK=8/2*10=40MHz 设置倍频得到时钟源PLL的频率*/
/*PLLCLK=8/2*10=40MHz 设置倍频得到时钟源PLL的频率*/
RCC->CFGR |= (uint32_t)RCC_CFGR_PLLMULL10;
/* PLL不分频输出 */
/* PLL不分频输出 */
RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1;
/* 使能 PLL时钟 */
/* 使能 PLL时钟 */
RCC->CR |= RCC_CR_PLLON;
/* 等待PLL时钟就绪*/
/* 等待PLL时钟就绪*/
while((RCC->CR & RCC_CR_PLLRDY) == 0)
{
}
/* 选择PLL为系统时钟的时钟源 */
/* 选择PLL为系统时钟的时钟源 */
RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW));
RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL;
/* 等到PLL成为系统时钟的时钟源*/
/* 等到PLL成为系统时钟的时钟源*/
while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08)
{
}

3
USER/Tim/Tim.c
View File

@ -54,7 +54,8 @@ void TIM2_IRQHandler(void) //TIM2中断
{
TIM_ClearITPendingBit(TIM2, TIM_IT_Update ); //清除TIMx更新中断标志
if(flag){
LED_OFF();
//LED_OFF();
LED_ON(leddat<3?++leddat:(leddat=0));
}else{
LED_ON(leddat>0?--leddat:(leddat=3));

46
USER/main.c.dump
View File

@ -1,46 +0,0 @@
/**
******************************************************************************
* 内容：SY1
* 作者：zhangsan
* 版本：v1.0
* 日期：2020.04
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f10x.h"
#include "Delay.h"
#include "Tim.h"
#include "Led.h"
#include "Key.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
int main(void)
{
u16 led0pwmval=0;
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2); //设置NVIC中断分组2:2位抢占优先级，2位响应优先级
LED_GPIO_INIT();
KEY_INIT();
TIM2_INIT(499,7199);
TIM3_PWM_INIT(9,499);
while (1)
{
delay(100000);
led0pwmval+=1;
if(led0pwmval>9)led0pwmval=0;
TIM_SetCompare2(TIM3,led0pwmval);
}
}
/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/