Stm32代码实现Rgb颜色盘逐渐变色

您好，以下是实现RGB颜色盘逐渐变色的STM32代码：
#include "stm32f10x.h"

#define PWM_FREQ 100 // PWM频率
#define DELAY_MS 10 // 变化时间间隔

void RCC_Configuration(void);
void GPIO_Configuration(void);
void TIM_Configuration(void);

int main(void)
{
RCC_Configuration();
GPIO_Configuration();
TIM_Configuration();

while (1)
{
int i;
for (i = 0; i < 360; i += 5)
{
TIM_SetCompare1(TIM2, (sin(i * M_PI / 180) + 1) / 2 * 4095);
TIM_SetCompare2(TIM2, (sin((i + 120) * M_PI / 180) + 1) / 2 * 4095);
TIM_SetCompare3(TIM2, (sin((i + 240) * M_PI / 180) + 1) / 2 * 4095);
Delay(DELAY_MS);
}
}
}

void RCC_Configuration(void)
{
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE); // 使能TIM2时钟
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE); // 使能GPIOA时钟
}

void GPIO_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_2;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
}

void TIM_Configuration(void)
{
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
TIM_OCInitTypeDef TIM_OCInitStructure;

TIM_TimeBaseStructure.TIM_Period = 4095;
TIM_TimeBaseStructure.TIM_Prescaler = SystemCoreClock / (4096 * PWM_FREQ) - 1; // 自动计算分频器的值
TIM_TimeBaseStructure.TIM_ClockDivision = 0;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure);

TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_Pulse = 0;
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
TIM_OC1Init(TIM2, &TIM_OCInitStructure);
TIM_OC2Init(TIM2, &TIM_OCInitStructure);
TIM_OC3Init(TIM2, &TIM_OCInitStructure);

TIM_Cmd(TIM2, ENABLE);
}

void Delay(__IO u32 nTime)
{
u32 TimingDelay = 0x00;

TimingDelay = nTime;

while(TimingDelay != 0)
{
TimingDelay--;
}
}

这段代码利用正弦函数来实现RGB颜色盘的逐渐变化，核心代码为：
TIM_SetCompare1(TIM2, (sin(i * M_PI / 180) + 1) / 2 * 4095);
TIM_SetCompare2(TIM2, (sin((i + 120) * M_PI / 180) + 1) / 2 * 4095);
TIM_SetCompare3(TIM2, (sin((i + 240) * M_PI / 180) + 1) / 2 * 4095);

同时，需要利用定时器 TIM2 来实现 PWM 信号的输出，以达到控制 LED 灯颜色的目的。详细请参考代码注释。