ARM, RISC-V контроллеры

В типовом HAL API бывает примерно такая шняга:

typedef struct
{
  uint32_t NVIC_IRQChannel;
  uint32_t NVIC_IRQChannelPreemptionPriority;
  uint32_t NVIC_IRQChannelSubPriority;
  FunctionalState NVIC_IRQChannelCmd;
} NVIC_InitTypeDef;
 
void NVIC_Init(NVIC_InitTypeDef* NVIC_InitStruct);

Соответственно в коде:

    NVIC_InitTypeDef NVIC_InitStructure;

    NVIC_InitStructure.NVIC_IRQChannel = DMA1_Channel4_IRQn;
    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2;
    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;

    NVIC_Init(&NVIC_InitStructure);