STM32H743 TIM4_CH4 PWM不能配置DMA

逆行者

报错：../../User/Src/stm32h7xx_hal_msp.c(432): error: use of undeclared identifier 'DMA_REQUEST_TIM4_CH4'

查看头文件stm32h7xx_hal_dma.h里面没有DMA_REQUEST_TIM4_CH4，有没有大师知道怎么配置TIM4_CH4，PWM DMA
#define DMA_REQUEST_TIM4_CH1         29U  /*!< DMAMUX1 TIM4 CH1 request  */
#define DMA_REQUEST_TIM4_CH2         30U  /*!< DMAMUX1 TIM4 CH2 request  */
#define DMA_REQUEST_TIM4_CH3         31U  /*!< DMAMUX1 TIM4 CH3 request  */
#define DMA_REQUEST_TIM4_UP          32U  /*!< DMAMUX1 TIM4 UP request   */

逆行者

    /* tim4_CH4 Init */
    hdma_tim4_ch4.Instance = DMA1_Stream7;
    hdma_tim4_ch4.Init.Request = DMA_REQUEST_TIM4_CH4;  //这里报错了
    hdma_tim4_ch4.Init.Direction = DMA_MEMORY_TO_PERIPH;
    hdma_tim4_ch4.Init.PeriphInc = DMA_PINC_DISABLE;
    hdma_tim4_ch4.Init.MemInc = DMA_MINC_ENABLE;
    hdma_tim4_ch4.Init.PeriphDataAlignment = DMA_PDATAALIGN_WORD;
    hdma_tim4_ch4.Init.MemDataAlignment = DMA_MDATAALIGN_WORD;
    hdma_tim4_ch4.Init.Mode = DMA_CIRCULAR;
    hdma_tim4_ch4.Init.Priority = DMA_PRIORITY_LOW;
    hdma_tim4_ch4.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
    if (HAL_DMA_Init(&hdma_tim4_ch4) != HAL_OK)
    {
      Error_Handler(__FILE__, __LINE__);
    }

    __HAL_LINKDMA(tim_pwmHandle,hdma[TIM_DMA_ID_CC4],hdma_tim4_ch4);