標題: 求一個STM32的8個流水燈 [打印本頁]
作者: HHHHRRR    時間: 2025-5-22 00:42
標題: 求一個STM32的8個流水燈
通過按鍵能夠?qū)崿F(xiàn)對燈光的啟動、關(guān)閉、效果花樣切換功能 3.設(shè)計要求至少控制8盞LED燈，能夠完成至少四種花樣的切換加分項：能夠?qū)崿F(xiàn)燈光能與蜂鳴器的配合
作者: 阿莎·    時間: 2025-6-27 09:31
#include "stm32f10x.h"

// 硬件定義
#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

// 系統(tǒng)狀態(tài)
typedef enum {
    SYSTEM_OFF,
    SYSTEM_RUNNING
} SystemState;

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

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

// 函數(shù)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();
   
    // 系統(tǒng)啟動提示
    Beep(100, 2);
   
    while(1) {
        ProcessKey();
        __WFI();  // 進入低功耗模式等待中斷
    }
}

// 時鐘配置
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;  // 初始關(guān)閉所有LED
   
    // 按鍵配置 - PB0 (外部上拉)
    GPIO_InitStructure.GPIO_Pin = KEY_PIN;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
    GPIO_Init(KEY_PORT, &GPIO_InitStructure);
   
    // 蜂鳴器配置 - 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);
}

// 定時器配置 - 10ms中斷一次
void TIM_Configure(void) {
    TIM_TimeBaseInitTypeDef TIM_InitStructure;
    NVIC_InitTypeDef NVIC_InitStructure;
   
    TIM_InitStructure.TIM_Period = 1000 - 1;      // 自動重裝載值
    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);
   
    // 配置中斷
    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);
}

// 蜂鳴器控制
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++); // 短暫間隔
    }
}

// 處理按鍵
void ProcessKey(void) {
    static uint8_t keyLastState = 1;  // 假設(shè)初始高電平
    static uint32_t pressTime = 0;
   
    uint8_t currentState = GPIO_ReadInputDataBit(KEY_PORT, KEY_PIN);
   
    // 檢測按鍵按下 (下降沿)
    if((keyLastState == 1) && (currentState == 0)) {
        pressTime = 0;
    }
   
    // 檢測按鍵釋放 (上升沿)
    if((keyLastState == 0) && (currentState == 1)) {
        if(pressTime < 50) {  // 短按 (<0.5s)
            if(sysState == SYSTEM_OFF) {
                sysState = SYSTEM_RUNNING;  // 啟動系統(tǒng)
                Beep(100, 1);
            } else {
                // 切換燈光模式
                currentMode = (currentMode + 1) % MODE_COUNT;
                Beep(150, currentMode + 1);
                ledPosition = 0;  // 重置燈光位置
            }
        } else {  // 長按 (>0.5s)
            sysState = (sysState == SYSTEM_OFF) ? SYSTEM_RUNNING : SYSTEM_OFF;
            Beep(100, (sysState == SYSTEM_ON) ? 1 : 2);
            LED_PORT->ODR = 0x00;  // 關(guān)閉所有LED
        }
    }
   
    keyLastState = currentState;
    pressTime++;
}

// 更新LED顯示
void UpdateLEDs(void) {
    if(sysState != SYSTEM_RUNNING) return;
   
    if(delayCounter++ < 10) return;  // 100ms延遲
    delayCounter = 0;
   
    switch(currentMode) {
        case MODE_1_RIGHT_LEFT:  // 從左向右流水燈
            LED_PORT->ODR = (1 << ledPosition);
            ledPosition = (ledPosition + 1) % 8;
            break;
            
        case MODE_2_LEFT_RIGHT:  // 從右向左流水燈
            LED_PORT->ODR = (0x80 >> ledPosition);
            ledPosition = (ledPosition + 1) % 8;
            break;
            
        case MODE_3_INSIDE_OUT:  // 從中間向兩邊擴展
            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同步閃爍
            LED_PORT->ODR = blinkState ? 0xFF : 0x00;
            blinkState = !blinkState;
            break;
    }
}

// 定時器中斷 (10ms)
void TIM2_IRQHandler(void) {
    if(TIM_GetITStatus(TIM2, TIM_IT_Update) != RESET) {
        TIM_ClearITPendingBit(TIM2, TIM_IT_Update);
        UpdateLEDs();
        ProcessKey();
    }
}
作者: 單片機重購    時間: 2025-6-27 14:47
這種的程序網(wǎng)上開源的很多，你需要去網(wǎng)上找找，在這個網(wǎng)站學習STM32完全不夠用的哦，你要去別的網(wǎng)站再去搜尋點STM32的資料哦
作者: SHYKH    時間: 2025-6-27 17:21
Hi! Your project sounds like a fun and practical challenge—controlling 8 LEDs with multiple switching patterns using a button, and even syncing with a buzzer for bonus points. I'd be happy to offer some ideas to help you get started.  ✅ Suggested Approach: &#128257; 1. Use a Microcontroller (like Arduino or STM32): It’s the easiest way to handle multiple LEDs, button input, and a buzzer with flexible logic.  &#128280; 2. Button-Control Logic: Use one button to cycle through 4 different modes.  Each press can increment a mode counter (0–3), and after the 4th, reset back to 0.  c Copy Edit // Pseudocode for button press logic if (buttonPressed) {   mode = (mode + 1) % 4; } &#128161; LED Pattern Ideas (at least 4): All LEDs ON  Chase effect (like running lights, one LED on at a time in sequence)  Blink all LEDs together  Even/Odd pattern (alternate between even-numbered and odd-numbered LEDs)  &#128276; Bonus: Add Buzzer Coordination You can sync a short beep with every button press or  Make the buzzer follow the LED pattern (e.g., beep when LEDs blink)  c Copy Edit // Example: Turn on buzzer with LED digitalWrite(buzzerPin, HIGH); delay(100); digitalWrite(buzzerPin, LOW); &#129504; Additional Tips: Use debounce logic or delay() after button press to avoid false triggers.  Store the mode state in a variable and use a switch or if statements to control LED patterns.  You could even add PWM dimming if you want to level up!  Let me know what platform or microcontroller you’re using—I’d be glad to share example code or schematics tailored to your setup. Good luck with your design!



歡迎光臨 (http://www.torrancerestoration.com/bbs/) Powered by Discuz! X3.1