axis data fifo是一个常用的IP核,是具有axis接口的fifo IP核,这里主要介绍该IP核的packet mode属性的特征。 实验内容 介绍axis data fifi IP核的packet mode属性的特征。 实验步骤 创建工程文件,添加axis_data_fifo IP核,工程中添加了axis_data_fifo的两个IP核,一个为非packet mode模式,一个为packet mode模式...
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@(posedgeS_AXIS_tready);//等待FIFO准备好@(posedges_axis_aclk);//对齐时钟S_AXIS_tvalid =1;//写有效S_AXIS_tkeep =2'b11;for(i=0;i<512;i=i+1)//写512个数据begin@(posedges_axis_aclk) S_AXIS_tdata = S_AXIS_tdata +1;end@(posedges_axis_aclk) S_AXIS_tlast =1;//写最后一...
所述FWFT FIFO用于完成零延迟FIFO数据读取功能,所述FIF02AXIS转换单元用于完成用户Stream到ZYNQ处理器MemoryMap端的AXIS接口协议tval id信号与FIFO接口协议empty信号之间的转换、AXIS接口协议tvalid信号逻辑与tready信号后输出的信号与FIFO接口协议rd_en信号之间的转换,以及AXIS接口协议tdata与FIFO接口协议dout信号之间的转换...
wire [(WIDTH - 1):0] m_axis_tdata; wire [(WIDTH/8 - 1):0] m_axis_tkeep; wire m_axis_tlast; wire pc_asserted_s, pc_asserted_m; wire [(WIDTH - 1):0] pc_status_m, pc_status_s; reg areset_n; axis_fifo DUT(.aclk(clk), .areset_n(areset_n), .s_axis_tvalid(s...
所有地址切片好后,与对应的数据以及控制信号一起发送到fifo。 fifo2axi.v:接受从ahb返回到fifo的数据,比如rdata,resp,id,读写状态,是否为last,并拼装成axi的格式,这部分主要的难度在于读与写的区分,b channel和r channel数据不要混淆就行,难度不高,看看代码就懂了,就不用细讲了。
memoryStoreEvictionPolicy:当达到maxElementsInMemory限制时,Ehcache将会根据指定的策略去清理内存。默认策略是LRU(最近最少使用)。也可以设置为FIFO(先进先出)或是LFU(较少使用)。 clearOnFlush:内存数量最大时是否清除。 memoryStoreEvictionPolicy:可选策略有:LRU(最近最少使用,默认策略)、FIFO(先进先出)、LFU(最少...
8. OVERRUN is set when new data has replaced unread data. The precise operation of OVERRUN depends on the operation mode of FIFO. In bypass mode, OVERRUN is set when new data replaces unread data in the DATAX, DATAY, and DATAZ registers. In all other modes, OVERRUN is set when the...
The processor only needs to fetch data from the ADXL345 every 0.2 s; it can be awakened by watermark interrupt. The other functions of the FIFO are also very useful. Using trigger mode, the FIFO can let us know what happens before the interrupt. Since the proposed solution does not use ...
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