ARM, RISC-V контроллеры

Вот как я инициализировал timer2 для работы в режиме ШИМ  Инициализировал порт А RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE); // включил порт GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_2 | GPIO_Pin_3; //PA0-PA3 выход TIM2_CH1-TIM2_CH3 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_Init(GPIOA, &GPIO_InitStructure); Конфигурирую Timer2 в режим ШИМ четыре канала TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE); // Time Base configuration TIM_TimeBaseStructure.TIM_Period = 10000; // период ШИМ TIM_TimeBaseStructure.TIM_Prescaler = 2; TIM_TimeBaseStructure.TIM_ClockDivision = 0; TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure); //--------------- Channel 1, 2,3 and 4 Configuration in PWM mode -------------------- // PWM1 Mode configuration: Channel1 TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1; TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; TIM_OCInitStructure.TIM_Pulse = 400; // заполнение периода ШИМ TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High; TIM_OC1Init(TIM2, &TIM_OCInitStructure); // ---------PWM1 Mode configuration: Channel2 ------------------ TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; TIM_OCInitStructure.TIM_Pulse = 800; TIM_OC2Init(TIM2, &TIM_OCInitStructure); //----------- PWM1 Mode configuration: Channel3 ----------------- TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; TIM_OCInitStructure.TIM_Pulse = 1600; TIM_OC3Init(TIM2, &TIM_OCInitStructure); //----------- PWM1 Mode configuration: Channel4 ---------------------- TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; TIM_OCInitStructure.TIM_Pulse = 3200; TIM_OC4Init(TIM2, &TIM_OCInitStructure); //---------- TIM1 enable counter -------------- TIM_Cmd(TIM2, ENABLE); //---------- TIM1 Main Output Enable ---------- TIM_CtrlPWMOutputs(TIM2, ENABLE);