Programujeme STM32 bez knihoven Ing. Vojtěch Skřivánek TIM2->ARR = 499U; TIM2->CR2 |= TIM_CR2_MMS_1; TIM2->CR1 |= TIM_CR1_CEN;
DMA1_Channel5->CCR |= (DMA_CCR_MINC | DMA_CCR_CIRC); DMA1_Channel5->CNDTR = 5U; DMA1_Channel5->CPAR = &(USART2->RDR); DMA1_Channel5->CMAR = Data;
RCC->IOPENR |= RCC_IOPENR_IOPAEN; GPIOA->MODER &= ~(GPIO_MODER_MODE2 | GPIO_MODER_MODE3); GPIOA->MODER |= (GPIO_MODER_MODE2_1 | GPIO_MODER_MODE3_1);
RCC->APB1ENR |=RCC_APB1ENR_USART2EN; USART2->BRR = 1666U; USART2->CR3 |= USART_CR3_DMAR; USART2->CR1 |= (USART_CR1_UE | USART_CR1_RE); Za podpory firem
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