TIM3->CCER |= TIM_CCER_CC3E | TIM_CCER_CC4E;
TIM2->CCER |= TIM_CCER_CC2E;
TIM3->BDTR |= TIM_BDTR_MOE;
TIM2->CR1 |= TIM_CR1_CEN;


TIM15->SMCR |= TIM_SMCR_SMS_1 | TIM_SMCR_SMS_2;

DMAMUX1_RequestGenerator0->RGCR |= DMAMUX_RGxCR_GE;
DMAMUX1_RequestGenerator2->RGCR |= DMAMUX_RGxCR_GE;

TIM15->SR &= 0x00;
TIM3->SR &= 0x00;

TIM3->CR1 |= TIM_CR1_CEN;