STM32CubeMX DMA中断使用详解：SPI DMA中断的作用及关闭后的影响

SPI's DMA interrupt is used to signal the completion of a DMA transfer, triggering the necessary processing when required. Disabling the interrupt can cause the program to hang because the completion of the DMA transfer is not handled promptly, preventing the program from proceeding. It's recommended to keep the interrupt enabled when using DMA to ensure timely processing of the transfer completion event.