中断处理函数最后会调用 spi-sunxi.c 中 dma 结束后的 callback,callback 的设置是这个 staticintsunxi_spi_config_dma_rx(structsunxi_spi*sspi,structspi_transfer*t){dma_desc->callback=sunxi_spi_dma_cb_rx;dma_desc->callback_param=(void*)sspi;dmaengine_submit(dma_desc);}staticvoidsunxi_spi_dma...
C:\Program Files\Microsoft Data Migration Assistant\dmacmd.exe /Action=Assess /AssessmentConfiguration= C:\Demo\ScaleAssessment\Assess-for-AzureSQLMI.xml 示例Assess-for-AzureSQLMI.xml 的内容定义用于评估 SQL 托管实例目标的 SQL Server 实例的元素:XML...
DIF=前12日价格平均值-前26日价格平均值。 MACD(亦称DEA):指数平滑异同移动平均线,是DIF的9天的平均值(相当于DIF的9日均线)。 BAR=DIF-MACD。1、判断大势:DIF、MACD为正值时,大势为多头市场,反之为空头市场。2、DIF和MACD发生黄金交叉时是买入时机,发生死亡交叉时是卖出时机。3、正BAR由...
以N日威廉指标为例,WR(N) = 100 * [ HIGH(N)-C ] / [ HIGH(N)-LOW(N) ]C:当日收盘价 HIGH(N):N日内的最高价 LOW(n):N日内的最低价 vol 股市中的VOL是成交量指标,成交量是指个股和大盘的成交总手,在形态上用一根立式的柱子来表示。左面的坐标值与柱子的横向对应处,就是当...
Your Answer Post Your Answer By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy. Not the answer you're looking for? Browse other questions tagged c network-programming linux-kernel kernel dma or ask your own question. The...
DACA: Try to avoid some crashes/hangs for the most crazy code so we c… March 31, 2020 11:33 cmake add a "run-clang-tidy" CMake target when the executable exists (danma… April 2, 2020 13:55 cve-test-suite cve test suite: Add a download script October 6, 2018 11:36 dem...
代码位置:drivers\net\ethernet\intel\igb\igb_main.c # 内核源码中对dma_alloc_coherent 的调用,在linux网络缓冲区-发送队列设置这块。 参考代码如下: 2. 大页内存的优势 A:减少 TLB 缓存未命中: TLB(Translation Lookaside Buffer)是一个小型缓存,用于存储最近使用的虚拟地址到物理地址的映射关系。 当使用标准...
方法/步骤 1 确定硬盘是否真出现问题,可用多个软件检测一下,如图所示 2 查看软件对这个错误警告的提示,是什么原因导致的,这里提示是通信错误,可能是由一个损坏电缆引起的 3 简单点来说,就是接口稍微有点松动或者接触不良,就会出现数据,可以重新拔插一下硬盘的数据线,使其接触良好 4 同样可以使用酒精或者橡皮...
I've downloaded the altpciechdma.c driver for the Altera Arria GX dev kit. The char part of it is not yet finished (due to the comments). And a module is missign "mapper_user_to_sg.h". Smb has tried to finish this part of the driver by himself? Or maybe I've missed...
I'm using a STM32F4 for receiving data from a FPGA (now it only relays data from a PC) using DMA UART. The DMA UART is working as it should, but it can only give an interrupt when the buffer for the UART it is half full or full. The problem is that I want to know if I ...