WS2812B hal PWM STM32F030k6 tim1_1
时间: 2024-04-21 12:24:50 浏览: 92
STM32用PWM +DMA驱动 WS2812.txt
对于使用STM32F030K6和TIM1通道1来控制WS2812B RGB LED的PWM HAL程序,可以参考以下示例代码:
```c
#include "stm32f0xx_hal.h"
#define NUM_LEDS 8
TIM_HandleTypeDef htim1;
void WS2812_Init(void)
{
// 初始化PWM定时器
htim1.Instance = TIM1;
htim1.Init.Prescaler = 0;
htim1.Init.CounterMode = TIM_COUNTERMODE_UP;
htim1.Init.Period = 89; // 对应WS2812B的周期
htim1.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
HAL_TIM_PWM_Init(&htim1);
TIM_OC_InitTypeDef sConfigOC;
sConfigOC.OCMode = TIM_OCMODE_PWM1;
sConfigOC.Pulse = 0;
sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH;
sConfigOC.OCFastMode = TIM_OCFAST_ENABLE;
HAL_TIM_PWM_ConfigChannel(&htim1, &sConfigOC, TIM_CHANNEL_1);
HAL_TIM_PWM_Start(&htim1, TIM_CHANNEL_1);
}
void WS2812_SetColor(uint8_t red, uint8_t green, uint8_t blue)
{
// 设置PWM占空比
__HAL_TIM_SET_COMPARE(&htim1, TIM_CHANNEL_1, green);
HAL_Delay(1); // 调整延时以适应WS2812B的时序要求
__HAL_TIM_SET_COMPARE(&htim1, TIM_CHANNEL_1, red);
HAL_Delay(1); // 调整延时以适应WS2812B的时序要求
__HAL_TIM_SET_COMPARE(&htim1, TIM_CHANNEL_1, blue);
HAL_Delay(1); // 调整延时以适应WS2812B的时序要求
}
void WS2812_SetAll(uint8_t red, uint8_t green, uint8_t blue)
{
for (int i = 0; i < NUM_LEDS; i++)
{
WS2812_SetColor(red, green, blue);
}
}
int main(void)
{
HAL_Init();
WS2812_Init();
while (1)
{
WS2812_SetAll(255, 0, 0); // 设置所有LED为红色
HAL_Delay(1000);
WS2812_SetAll(0, 255, 0); // 设置所有LED为绿色
HAL_Delay(1000);
WS2812_SetAll(0, 0, 255); // 设置所有LED为蓝色
HAL_Delay(1000);
}
}
```
以上代码使用了STM32Cube HAL库来初始化和控制TIM1通道1的PWM信号,以控制WS2812B LED的颜色。请根据实际硬件进行适当的配置和修改。
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