DMA_MemoryInc = DMA_MemoryInc_Enable; /** ADC DR数据大小为半字,即两个字节*/ DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord; /** 存储器数据大小为半字*/ DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord; DMA_InitStructure.DMA_Mode = DMA_Mode_Circula...
DMA_PeripheralDataSize_HalfWord 数据宽度为 16 位 DMA_PeripheralDataSize_Word 数据宽度为32 位 DMA_MemoryDataSize DMA_MemoryDataSize 设定了外设数据宽度。 DMA_MemoryDataSize_Byte 数据宽度为 8 位 DMA_MemoryDataSize_HalfWord 数据宽度为 16 位 DMA_MemoryDataSize_Word 数据宽度为32 位 DMA_Mode DMA_Mode ...
DMA_MemoryDataSize设定了外设数据宽度。 DMA_MemoryDataSize_Byte数据宽度为8位 DMA_MemoryDataSize_HalfWord数据宽度为16位 DMA_MemoryDataSize_Word数据宽度为32位 DMA_Mode DMA_Mode设置了CAN的工作模式 DMA_Mode_Circular工作在循环缓存模式 DMA_Mode_Normal工作在正常缓存模式 DMA_Priority DMA_Priority设定DMA通道x...
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord; 上面的这句是设置DMA在访问时每次操作的数据长度。有三种数据长度类型,前面已经讲过了,这里不在叙述。 DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord; 与上面雷同。在此不再说明。 DMA_InitStructure.DMA_Mode = DMA...
DMA_PeripheralDataSize_Word //字 (9)DMA_MemoryDataSize:存储器数据宽度,可选字节(8位)、半字(16位)和字(32位),和外设数据宽度相对应。该值在标准库中可供选择的参数值如下: DMA_MemoryDataSize_Byte //字节 DMA_MemoryDataSize_HalfWord //半字 ...
//Transfer completed memory address increment DMA_InitStruct.DMA_MemoryInc = DMA_MemoryInc_Enable; DMA_InitStruct.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord; DMA_InitStruct.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord; DMA_InitStruct.DMA_Mode = DMA_Mode_Circular; ...
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord; /*设定DMA工作再循环缓存模式,即告诉DMA要不停的搬运,不能偷懒*/ DMA_InitStructure.DMA_Mode = DMA_Mode_Circular; /*设定DMA选定的通道软件优先级*/ DMA_InitStructure.DMA_Priority = DMA_Priority_High; ...
DMA_InitInstructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord; DMA_InitInstructure.DMA_Mode = DMA_Mode_Circular;//不断地传输,有数据就传输 DMA_InitInstructure.DMA_Priority = DMA_Priority_High;//DMA优先级 DMA_InitInstructure.DMA_M2M = DMA_M2M_Disable; ...
or DMA_MemoryDataSize members depending in the transfer direction. */ uint32_t DMA_PeripheralInc; /*!< Specifies whether the Peripheral address register should be incremented or not. This parameter can be a value of @ref DMA_peripheral_incremented_mode */ ...
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord; DMA_InitStructure.DMA_Mode = DMA_Mode_Circular; DMA_InitStructure.DMA_Priority = DMA_Priority_High; DMA_InitStructure.DMA_M2M = DMA_M2M_Disable; DMA_Init(DMA1_Channel1, &DMA_InitStructure); ...