STM32 DMA中的DMA_BufferSize和DMA_MemoryDataSize 示例代码1 采集2通道ADC数据 查看代码 externuint16_tADC3ConvertedValue[2];/* DMA2 Stream0 channel2 配置 ***/DMA_InitStructure.DMA_Channel=DMA_Channel_2;DMA_InitStructure.DMA_PeripheralBaseAddr=(uint32_t)ADC3_DR_ADDRESS;DMA_InitStructure.DMA_Memory0...
I have been using the FX3 example code SlaveFifoSync provided for 32bit GPIF interface.I have a doubt regarding the DMA buffer count and DMA buffer size. In the example design, the header file cyfxslfifosync.h is assigning CY_FX_SLFIFO_DMA_BUF_COUNT to 2 by default per channel and in...
uint32_t total_dma_buf_size; /*!< Total size of all the allocated DMA buffers * - 0 if the channel has not been initialized * - non-zero if the channel has been initialized */ } i2s_chan_info_t; /**0 comments on commit e87f799 Please sign in to comment. Footer...
You either: don't have the permissions, do not have enough free memory under 4GB, or the hypervisor memory is too fragmented! (rc:-12) Kernel panic - not syncing: Failed to get contiguous memory for DMA from Xen! You either: don't have the permissions, do not have enough free memory...
Increasing the DMA buffer size in WindowsWhat the DMA buffer provides Microsoft Windows and how to configure the DMA buffer size are discussed.AnonymousInside Microsoft Windows
A USB controller with a DMA mode thus allows for a significant reduction in the buffer size of a USB transmit or receive buffer. A USB device having a controller with a DMA mode handles USB data as fast as the USB host can ... ...
BF707 SPORT DMA buffer size issue Hello, I have observed an anomaly with respect to submitted buffer size for BF707 SPORTs when receiving data via DMA. In short, it appears thatI must submitbuffers that areone word longer than the data being r...
I am trying to change the buffer size for DMA and number of buffers. I'm talking about CyU3PDmaMultiChannelCreate function. Right now we have about 36k buffer size and 3 as buffer count. We want to decrease size and increase count. Thanks in advance! David Like Subscribe ...
I am trying to change the buffer size for DMA and number of buffers. I'm talking about CyU3PDmaMultiChannelCreate function. Right now we have about 36k buffer size and 3 as buffer count. We want to decrease size and increase count. Thanks in advance! David Like Subs...