求一个STM32的8个流水灯

ID:1151234 · 发表于 2025-5-22 00:42

通过按键能够实现对灯光的启动、关闭、效果花样切换功能 3.设计要求至少控制8盏LED灯，能够完成至少四种花样的切换加分项：能够实现灯光能与蜂鸣器的配合

ID:1155444 · 发表于 2025-6-27 09:31

#include "stm32f10x.h"

// 硬件定义
#define LED_PORT GPIOA
#define LED_PINS (GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_2 | GPIO_Pin_3 | \
               GPIO_Pin_4 | GPIO_Pin_5 | GPIO_Pin_6 | GPIO_Pin_7)

#define KEY_PORT GPIOB
#define KEY_PIN GPIO_Pin_0

#define BEEP_PORT GPIOB
#define BEEP_PIN GPIO_Pin_1

// 系统状态
typedef enum {
SYSTEM_OFF,
SYSTEM_RUNNING
} SystemState;

// 灯光模式
typedef enum {
MODE_1_RIGHT_LEFT,
MODE_2_LEFT_RIGHT,
MODE_3_INSIDE_OUT,
MODE_4_BLINK_ALL,
MODE_COUNT
} LightMode;

// 全局变量
volatile SystemState sysState = SYSTEM_OFF;
volatile LightMode currentMode = MODE_1_RIGHT_LEFT;
uint8_t ledPosition = 0;
uint16_t delayCounter = 0;
uint8_t blinkState = 0;

// 函数原型
void RCC_Configure(void);
void GPIO_Configure(void);
void TIM_Configure(void);
void SysTick_Handler(void);
void UpdateLEDs(void);
void Beep(uint16_t duration, uint8_t times);
void ProcessKey(void);

int main(void) {
// 初始化
RCC_Configure();
GPIO_Configure();
TIM_Configure();

// 系统启动提示
Beep(100, 2);

while(1) {
      ProcessKey();
      __WFI();  // 进入低功耗模式等待中断
}
}

// 时钟配置
void RCC_Configure(void) {
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB |
                        RCC_APB2Periph_AFIO, ENABLE);

RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);
}

// GPIO配置
void GPIO_Configure(void) {
GPIO_InitTypeDef GPIO_InitStructure;

// LED配置 - PA0~PA7
GPIO_InitStructure.GPIO_Pin = LED_PINS;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(LED_PORT, &GPIO_InitStructure);
LED_PORT->ODR = 0x00;  // 初始关闭所有LED

// 按键配置 - PB0 (外部上拉)
GPIO_InitStructure.GPIO_Pin = KEY_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
GPIO_Init(KEY_PORT, &GPIO_InitStructure);

// 蜂鸣器配置 - PB1
GPIO_InitStructure.GPIO_Pin = BEEP_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(BEEP_PORT, &GPIO_InitStructure);
GPIO_ResetBits(BEEP_PORT, BEEP_PIN);
}

// 定时器配置 - 10ms中断一次
void TIM_Configure(void) {
TIM_TimeBaseInitTypeDef TIM_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;

TIM_InitStructure.TIM_Period = 1000 - 1;    // 自动重装载值
TIM_InitStructure.TIM_Prescaler = 720 - 1;    // 72MHz/720 = 100kHz
TIM_InitStructure.TIM_ClockDivision = 0;
TIM_InitStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM2, &TIM_InitStructure);

TIM_ITConfig(TIM2, TIM_IT_Update, ENABLE);
TIM_Cmd(TIM2, ENABLE);

// 配置中断
NVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}

// 蜂鸣器控制
void Beep(uint16_t duration, uint8_t times) {
for(uint8_t i = 0; i < times; i++) {
      GPIO_SetBits(BEEP_PORT, BEEP_PIN);
      for(volatile uint32_t j = 0; j < duration * 1000; j++);
      GPIO_ResetBits(BEEP_PORT, BEEP_PIN);
      for(volatile uint32_t j = 0; j < 10000; j++); // 短暂间隔
}
}

// 处理按键
void ProcessKey(void) {
static uint8_t keyLastState = 1;  // 假设初始高电平
static uint32_t pressTime = 0;

uint8_t currentState = GPIO_ReadInputDataBit(KEY_PORT, KEY_PIN);

// 检测按键按下 (下降沿)
if((keyLastState == 1) && (currentState == 0)) {
      pressTime = 0;
}

// 检测按键释放 (上升沿)
if((keyLastState == 0) && (currentState == 1)) {
      if(pressTime < 50) {  // 短按 (<0.5s)
         if(sysState == SYSTEM_OFF) {
            sysState = SYSTEM_RUNNING;  // 启动系统
            Beep(100, 1);
         } else {
            // 切换灯光模式
            currentMode = (currentMode + 1) % MODE_COUNT;
            Beep(150, currentMode + 1);
            ledPosition = 0;  // 重置灯光位置
         }
      } else {  // 长按 (>0.5s)
         sysState = (sysState == SYSTEM_OFF) ? SYSTEM_RUNNING : SYSTEM_OFF;
         Beep(100, (sysState == SYSTEM_ON) ? 1 : 2);
         LED_PORT->ODR = 0x00;  // 关闭所有LED
      }
}

keyLastState = currentState;
pressTime++;
}

// 更新LED显示
void UpdateLEDs(void) {
if(sysState != SYSTEM_RUNNING) return;

if(delayCounter++ < 10) return;  // 100ms延迟
delayCounter = 0;

switch(currentMode) {
      case MODE_1_RIGHT_LEFT:  // 从左向右流水灯
         LED_PORT->ODR = (1 << ledPosition);
         ledPosition = (ledPosition + 1) % 8;
         break;

      case MODE_2_LEFT_RIGHT:  // 从右向左流水灯
         LED_PORT->ODR = (0x80 >> ledPosition);
         ledPosition = (ledPosition + 1) % 8;
         break;

      case MODE_3_INSIDE_OUT:  // 从中间向两边扩展
         if(ledPosition < 4) {
            LED_PORT->ODR = (1 << (3 - ledPosition)) | (1 << (4 + ledPosition));
         } else {
            LED_PORT->ODR = 0;
         }
         ledPosition = (ledPosition + 1) % 5;
         break;

      case MODE_4_BLINK_ALL:  // 所有LED同步闪烁
         LED_PORT->ODR = blinkState ? 0xFF : 0x00;
         blinkState = !blinkState;
         break;
}
}

// 定时器中断 (10ms)
void TIM2_IRQHandler(void) {
if(TIM_GetITStatus(TIM2, TIM_IT_Update) != RESET) {
      TIM_ClearITPendingBit(TIM2, TIM_IT_Update);
      UpdateLEDs();
      ProcessKey();
}
}

ID:1152291 · 发表于 2025-6-27 14:47

这种的程序网上开源的很多，你需要去网上找找，在这个网站学习STM32完全不够用的哦，你要去别的网站再去搜寻点STM32的资料哦

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求一个STM32的8个流水灯

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