使用STM32F4的TIM3来产生PWM 输出，使用 TIM14的通道1来产生PWM来控制DS0的亮度。-Use the STM32F4 s TIM3 to generate the PWM output and use PWM1 channel 1 to generate a PWM to control the brightness of the DS0.

stm32030 HAL库驱动 oled +4路adc采集+中间值滤波算法(stm32f030 oled adc his file provides firmware functions to manage the following functionalities of the Analog to Digital Convertor (ADC) peripheral:)