Запускаю все как в примере, а генерации нет, в чем проблема? Помогите с кодом пожалуйста 
Код: Выделить всё
GPIO_InitTypeDef GPIO_InitStructure;
TIM_TimeBaseInitTypeDef TIM_TimeBase_InitStructure;
TIM_OCInitTypeDef TIM_OC_InitStructure;
//Initialize clocks for TIM2
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);
//Initialize clocks for GPIOA, AFIO
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
//Configure pin TIM2 CH4 = PA3 as alternative function push-pull
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
//Configure TIM2 time base
TIM_TimeBase_InitStructure.TIM_ClockDivision = TIM_CKD_DIV1;
TIM_TimeBase_InitStructure.TIM_CounterMode = TIM_CounterMode_CenterAligned1;
TIM_TimeBase_InitStructure.TIM_Period = 1024-1; //11kHz with F100RB, 35kHz with F103RB
TIM_TimeBase_InitStructure.TIM_Prescaler = 0;
TIM_TimeBaseInit(TIM2, &TIM_TimeBase_InitStructure);
//Configure TIM2 waveform
TIM_OC_InitStructure.TIM_OCMode = TIM_OCMode_PWM1;
TIM_OC_InitStructure.TIM_OCIdleState = TIM_OCIdleState_Reset;
TIM_OC_InitStructure.TIM_OCNIdleState = TIM_OCNIdleState_Reset;
TIM_OC_InitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
TIM_OC_InitStructure.TIM_OCNPolarity = TIM_OCNPolarity_High;
TIM_OC_InitStructure.TIM_OutputState = TIM_OutputState_Disable;
TIM_OC_InitStructure.TIM_OutputNState = TIM_OutputNState_Disable;
TIM_OC_InitStructure.TIM_Pulse = 512;
TIM_OC4Init(TIM2, &TIM_OC_InitStructure);
TIM_Cmd(TIM2, ENABLE);
