#ifndef _PWM_H #define _PWM_H #include "stm32f4xx.h" /*---------------------- 配置 ------------------------*/ #define LCD_PWM_PORT GPIOD #define LCD_PWM_CLK RCC_AHB1Periph_GPIOD #define LCD_PWM_PIN GPIO_Pin_13 #define LCD_PWM_AF GPIO_AF_TIM4 #define LCD_PWM_PinSource GPIO_PinSource13 #define LCD_TIM_CLK RCC_APB1Periph_TIM4 #define LCD_TIM TIM4 /*-------------------- 函数声明 ----------------------*/ void LCD_PWMinit(u8 pulse); //PWM初始化 void LCD_PwmSetPulse (u8 pulse); //设置占空比 //获取屏幕亮度 u8 LCD_PwmGetPulse (void); #endif