AT32的DMA中断符号含义

 DMA1_GL1_FLAG：DMA1_GL1_FLAG is a constant that represents a flag for the DMA1 global interrupt associated with channel 1. This flag indicates whether the interrupt associated with DMA1 channel 1 has occurred or not. It is typically used in microcontroller programming to trigger specific actions or events when data transfer using DMA1 channel 1 is complete.DMA1_GL1_FLAG是一个常量，表示与通道1相关联的DMA1全局中断的标志。该标志指示与DMA1通道1相关联的中断是否发生。它通常用于微控制器编程，当使用DMA1通道1的数据传输完成时触发特定的动作或事件。

        - DMA1_FDT1_FLAG：The DMA1_FDT1_FLAG is a flag bit in the DMA1 channel 1 FIFO data transfer (FDT) register. It indicates the status of the DMA transfer operation for channel 1. When this flag is set, it indicates that the DMA transfer for channel 1 has completed. The DMA controller uses these flags to notify the processor about the status of the transfer operation. The processor can then take appropriate actions based on this status.

DMA1_FDT1_FLAG是DMA1通道1 FIFO数据传输(FDT)寄存器中的一个标志位。表示通道1的DMA传输操作的状态。当设置这个标志时，它表明通道1的DMA传输已经完成。DMA控制器使用这些标志通知处理器有关传输操作的状态。然后处理器可以根据此状态采取适当的操作。

        - DMA1_HDT1_FLAG：DMA1_HDT1_FLAG is a flag that is set when the first half of a DMA transfer is complete on DMA1 channel 1. This flag is used to indicate that the DMA transfer has reached the first half of the destination buffer. This flag can be cleared by software by writing 0 to the corresponding bit in the DMA1_HIFCR register.

DMA1_HDT1_FLAG是在DMA1通道1上完成DMA传输的前半部分时设置的标志。这个标志用来指示DMA传输已经到达目标缓冲区的前半部分。该标志可以通过软件将0写入DMA1_HIFCR寄存器的相应位来清除。

        - DMA1_DTERR1_FLAG：

DMA1_DTERR1_FLAG is a programming term that refers to a flag bit in the DMA1 (Direct Memory Access 1) controller of a microcontroller. The DMA controller is a specialized hardware that allows data transfers between memory and peripherals without the intervention of the CPU.

The DMA1_DTERR1_FLAG is a flag bit that indicates an error condition in the DMA1 controller. Specifically, it indicates that a data transfer operation has encountered an error while trying to read or write data to a peripheral device. When such an error occurs, the DMA controller will generate an interrupt request to the CPU to handle the error condition.

In summary, DMA1_DTERR1_FLAG is part of the DMA controller's error reporting mechanism, and it signals to the CPU that a data transfer error has occurred.

DMA1_DTERR1_FLAG是一个编程术语，指的是微控制器的DMA1(直接内存访问1)控制器中的一个标志位。DMA控制器是一种专用硬件，它允许在内存和外设之间进行数据传输，而无需CPU的干预。

DMA1_DTERR1_FLAG是表示DMA1控制器中出现错误情况的标志位。具体来说，它表明数据传输操作在试图读取或写入数据到外围设备时遇到了错误。当这种错误发生时，DMA控制器将生成一个中断请求到CPU来处理错误情况。

总之，DMA1_DTERR1_FLAG是DMA控制器错误报告机制的一部分，它向CPU发出数据传输错误发生的信号。