DMA_MemoryDataSize = DMA_MemoryDataSize_Word; SDDMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Byte; SDDMA_InitStructure.DMA_Mode = DMA_Mode_Normal; SDDMA_InitStructure.DMA_Priority = DMA_Priority_VeryHigh; SDDMA_InitStructure.DMA_FIFOMode = DMA_FIFOMode_Enable; Binary file modified ...
DMA_PeripheralDataSize_Byte 数据宽度为 8 位 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...
DMA_InitSturcture.DMA_MemoryDataSize = DMA_MemoryDataSize_Word; # 如上DMA会将第一个采集到的数据放到ADC_DualConvertedValueTab[0]的低16位,下一个数据放到ADC_DualConvertedValueTab[0]的高16位,因此`DMA_InitSturcture.DMA_BufferSize`就可以设置为开启通道数的一半,这样扫描一圈,缓存就刚好使用完 # 如果...
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable; 上面的这句是设置DMA的内存递增模式,DMA访问多个内存参数时,需要使用DMA_MemoryInc_Enable,当DMA只访问一个内存参数时,可设置成:DMA_MemoryInc_Disable。 DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord; 上面的这句是设置DMA在...
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word; DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Word; DMA_InitStructure.DMA_Mode = DMA_Mode_Circular; DMA_InitStructure.DMA_Priority = DMA_Priority_High; DMA_InitStructure.DMA_M2M = DMA_M2M_Disable; ...
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 ...
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_...
DMA_MemoryInc：存储器地址是否递增，DMA_SxCR: MINC。DMA_PeripheralDataSize：外设数据宽度，可选字节 ...
uint32_t DMA_MemoryDataSize; /*!< Specifies the Memory data width. This parameter can be a value of @ref DMA_memory_data_size */ uint32_t DMA_Mode; /*!< Specifies the operation mode of the DMAy Streamx. This parameter can be a value of @ref DMA_circular_normal_mode ...