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RGB三色呼吸灯跑马

news 2025/9/29 13:41:05

//#include "stm32f0xx.h"
#include "head.h"// #include "bsp.h"
// ========== 用户可修改的宏定义 ==========
#define LED_NUM 4 // RGB灯数量
#define BREATH_CYCLE 1200//2000 // 呼吸周期(ms)，范围500-3000
#define PHASE_DELAY 100 // 灯间延迟(ms)
#define xdata const
unsigned char xdata sine_tab[130] = { //正弦呼吸表
7, 13, 19, 25, 31, 37, 43, 49, 56, 62, 67, 73, 79, 85, 91, 97, 102, 108, 114, 119, 124, 130, 135, 140, 145, 150, 155, 160, 165, 170, 174, 179, 183, 187, 191, 195, 199, 203, 207, 210, 214, 217, 220, 223, 226, 229, 232, 234, 237, 239, 241, 243, 245, 247, 248, 249, 251, 252, 253, 254, 254, 255, 255, 255, 255, 255, 255, 255, 254, 254, 253, 252, 251, 249, 248, 247, 245, 243, 241, 239, 237, 234, 232, 229, 226, 223, 220, 217, 214, 210, 207, 203, 199, 195, 191, 187, 183, 179, 174, 170, 165, 160, 155, 150, 145, 140, 135, 130, 124, 119, 114, 108, 102, 97, 91, 85, 79, 73, 67, 62, 56, 49, 43, 37, 31, 25, 19, 13, 7, 1
};
#define GPIO_t GPIO_InitTypeDef//
#define GPIO_PIN_SET 1
#define GPIO_PIN_RESET 0
#define HAL_GPIO_WritePin(GPIOx,GPIO_Pin_x,val) GPIO_WriteBit((GPIO_TypeDef*)GPIOx,GPIO_Pin_x,val)// val?(GPIOx->ODR |=GPIO_Pin_x):(GPIOx->ODR &=GPIO_Pin_x)// std_gpio_set_pin(GPIOx,GPIO_Pin_x)
#define HAL_GPIO_Init GPIO_Init //std_gpio_get_pin_mode(GPIOx,GPIO_Pin_x);std_gpio_set_pin_output_type(GPIOx,GPIO_Pin_x, GPIO_OUTPUT_PUSHPULL)

// GPIO配置数组（用户需根据实际电路修改）
GPIO_TypeDef* port[LED_NUM][3] = { // ... 填充所有LED的端口
{GPIOB, GPIOB, GPIOB}, // 灯1: R,G,B
{GPIOA, GPIOA, GPIOA}, // 灯2: R,G,B
{GPIOA, GPIOA, GPIOA}, // 灯3: R,G,B
{GPIOF, GPIOB, GPIOF}, // 灯4: R,G,B
};

uint16_t pin[LED_NUM][3] = { // ... 填充所有LED的引脚
{GPIO_PIN_2,GPIO_PIN_0, GPIO_PIN_1, }, // 灯1引脚 R G B
{GPIO_PIN_9, GPIO_PIN_8, GPIO_PIN_10}, // 灯2引脚
{GPIO_PIN_12, GPIO_PIN_11, GPIO_PIN_15},// 灯3引脚
{GPIO_PIN_0, GPIO_PIN_8, GPIO_PIN_1}, // 灯4引脚

};

// ========== 全局变量 ==========
volatile uint32_t global_tick = 0; // 200us计时器
uint8_t pwm_counter = 0; // PWM周期计数器(0-100)
int16_t pwm_val[LED_NUM][3] = {0}; // 各灯RGB当前PWM值

// ========== GPIO初始化 ==========
void GPIO_init_led() {
RCC->AHBENR |= RCC_AHBENR_GPIOAEN|RCC_AHBENR_GPIOBEN|RCC_AHBENR_GPIOCEN|RCC_AHBENR_GPIODEN|RCC_AHBENR_GPIOFEN; // 启用GPIOA时钟(按需添加其他端口)
//   for(int i=0; i<LED_NUM; i++) {
// for(int j=0; j<3; j++) {
//               std_gpio_set_pin_mode(port[i][j], pin[i][j], GPIO_MODE_OUTPUT); }}
for(int i=0; i<LED_NUM; i++) {
for(int j=0; j<3; j++) {
GPIO_t gpio = {0};
gpio.GPIO_Pin = pin[i][j];//gpio.Pin = pin[i][j];
gpio.GPIO_Mode = GPIO_MODE_OUTPUT;// gpio.Mode = GPIO_MODE_OUTPUT_PP;
//gpio.Speed = GPIO_SPEED_FREQ_HIGH;
gpio.GPIO_PuPd = GPIO_PuPd_NOPULL;
HAL_GPIO_Init(port[i][j], &gpio);
HAL_GPIO_WritePin(port[i][j], pin[i][j], GPIO_PIN_RESET);
}
}
}

// ========== 定时器配置(200us中断) ==========
void TIM_Init(TIM_TypeDef * TIMx) {

if(TIMx==TIM14)
{

RCC->APB1ENR |= RCC_APB1ENR_TIM14EN; // 启用TIM14时钟
NVIC_EnableIRQ(TIM14_IRQn); // 使能中断
NVIC_SetPriority(TIM14_IRQn, 0); // 最高优先级
}
else if(TIMx==TIM3)
{

RCC->APB1ENR |= RCC_APB1ENR_TIM3EN; // 启用TIM3时钟
NVIC_EnableIRQ(TIM3_IRQn); // 使能中断
NVIC_SetPriority(TIM3_IRQn, 0); // 最高优先级=0;最低=3；
}
else if(TIMx==TIM1)
{

RCC->APB2ENR |= RCC_APB2Periph_TIM1; // 启用TIM1时钟
NVIC_EnableIRQ(TIM1_BRK_UP_TRG_COM_IRQn); // 使能中断
NVIC_SetPriority(TIM1_BRK_UP_TRG_COM_IRQn, 0); // 最高优先级
}
TIMx->PSC = 48 - 1; // 48MHz/48 = 1MHz
TIMx->ARR = 200 - 1; // 1MHz/200 = 5kHz (200us)
TIMx->DIER |= TIM_DIER_UIE; // 使能更新中断
TIMx->CR1 |= TIM_CR1_CEN; // 启动定时器

}

// HSV转RGB函数（输入H:0-360 颜色, S:0-1饱和度, V:0-1 亮度；输出R/G/B:0-255）
void HSV2RGB(float h, float s, float v, uint8_t *r, uint8_t *g, uint8_t *b) {
float c = v * s;
float x = c * (1 - fabs(fmod(h/60, 2) - 1));
float m = v - c;

float rt, gt, bt;
if (h < 60) { rt = c; gt = x; bt = 0; }
else if (h < 120) { rt = x; gt = c; bt = 0; }
else if (h < 180) { rt = 0; gt = c; bt = x; }
else if (h < 240) { rt = 0; gt = x; bt = c; }
else if (h < 300) { rt = x; gt = 0; bt = c; }
else { rt = c; gt = 0; bt = x; }

*r = (rt + m) * 255;
*g = (gt + m) * 255;
*b = (bt + m) * 255;
}

// 呼吸效果主循环（示例）
void breathing_effect() {
// float time = get_system_time(); // 获取时间
// float h = fmod(time * 60, 360); // 色相每秒变化60°
// float v = (sin(time * 2) + 1) * 0.5; // 亮度呼吸频率2Hz

// uint8_t r, g, b;
// HSV2RGB(h, 1.0, v, &r, &g, &b); // 固定饱和度100%
// set_led_color(r, g, b); // 更新LED颜色
}

// ========== 中断服务函数 ==========
void TIM3_IRQHandler() {
if(TIM3->SR & TIM_SR_UIF) {
TIM3->SR &= ~TIM_SR_UIF; // 清除中断标志
//void rgb_bright(){
global_tick++; // 全局时间+200us
pwm_counter = (pwm_counter + 1) % 100; // PWM周期计数

// 每10ms更新一次PWM目标值（降低计算频率）
if(global_tick % 50 == 0) { // 50*200us=10ms

for(int i=0; i<LED_NUM; i++) {
// 计算带延迟的本地时间
uint32_t local_time = global_tick - (i * PHASE_DELAY * 5);
float cycle_pos = (local_time % (BREATH_CYCLE * 5)) / (float)(BREATH_CYCLE * 5);

// 分三段计算RGB值
int segment = (int)(cycle_pos * 3);
float seg_pos = (cycle_pos * 3) - segment;

#if 1
switch(segment) {
case 0: // 红灯↑ 绿灯↓
pwm_val[i][0] = (int)(seg_pos * 100);
pwm_val[i][1] = 100 - (int)(seg_pos * 100);
pwm_val[i][2] = 0;
break;
case 1: // 蓝灯↑ 红灯↓
pwm_val[i][2] = (int)(seg_pos * 100);
pwm_val[i][0] = 100 - (int)(seg_pos * 100);
pwm_val[i][1] = 0;
break;
case 2: // 绿灯↑ 蓝灯↓
pwm_val[i][1] = (int)(seg_pos * 100);
pwm_val[i][2] = 100 - (int)(seg_pos * 100);
pwm_val[i][0] = 0;
break;
}
#else
float time = global_tick;//get_system_time(); // 获取时间
float h = fmod(time * 60, 360); // 色相每秒变化60°
float v = 1;//(sin(time * 2) + 1) * 0.5; // 亮度呼吸频率2Hz

uint8_t r, g, b;
//HSV2RGB(h, 1.0, v, &r, &g, &b); // 固定饱和度100%
//HSV2RGB(h, 1.0, v, &pwm_val[i][0], &pwm_val[i][1], &pwm_val[i][2]);
switch(segment) {
case 0: HSV2RGB(h, 1.0, v, &pwm_val[i][0], &pwm_val[i][1], 0); break;
case 1: HSV2RGB(h, 1.0, v, &pwm_val[i][0], 0, &pwm_val[i][2]); break;
case 2: HSV2RGB(h, 1.0, v, 0, &pwm_val[i][1], &pwm_val[i][2]); break;
}
#endif
}
}

// 更新所有GPIO状态
for(int i=0; i<LED_NUM; i++) {
for(int j=0; j<3; j++) {
std_gpio_set_pin_mode(port[i][j], pin[i][j], GPIO_MODE_OUTPUT);
if(pwm_counter < pwm_val[i][j]) {
HAL_GPIO_WritePin(port[i][j], pin[i][j], GPIO_PIN_SET);
} else {
HAL_GPIO_WritePin(port[i][j], pin[i][j], GPIO_PIN_RESET);
}
}
}
// }
}

//// ========== 主函数 ==========
int main() {
HAL_Init();
GPIO_init_led();
TIM_Init(TIM3);

while(1) {
__WFI(); // 进入低功耗模式
}
}