m_sequencer为当前的seq启动时默认使用的sqr,如在实例化一个seq后,通过该seq的start函数启动,传入参数为m_sequencer。m_sequencer本质为uvm_sequencer_item类型。有时候需要将其$cast转换为sqr类型,则可以使用uvm_declare_p_sequencer的宏,其中参数为sqr。然后在seq的task body中,引用p_sequencer,即为m_sequencer对应...
(2)set_sequencer函数会使m_sequencer句柄指向执行当前sequence的sequencer,即指向env.vsqr. //src/seq/uvm_sequence_base.svhvirtualtaskstart(uvm_sequencer_base sequencer, uvm_sequence_base parent_sequence=null,intthis_priority=-1, bit call_pre_post=1); ... set_sequencer(sequencer); ... endtask/...
seq类的**body**中使用(random_seq.body.do_sequence_kind是调用seq.start) `uvm_do() 或者 start_item()/finish_item `uvm_do -> `uvm_do_on_pri_with(SEQ_OR_ITEM,sqr,priority=-1,CONSTRAINTS) { uvm_create_on(item,sqr); if(seq == null) start_item(item,priority); if(seq == null) ...
Illumina (San Diego, CA) offers a number of sequencers that vary in output, maximum reads per run, and read length.17Currently, the most popular sequencer for HLA genotyping is theIllumina MiSeq, which has gained widespread acceptance because of low error rates, including homopolymer regions of...
The rate of index hopping varies depending on the type of sequencer. The sequencers that have a nonpatterned flow cell, including MiSeq and NextSeq, showed lower levels of index hopping than those that have a patterned flow cell, including Hiseq X and NovaSeq29. Thus, we used MiSeq for ...
start_item src/seq/uvm_sequence_base.svh中的源代码 finish_item实现将sequence中的数据发送到sequencer,而与之通常配对的start_item里都做了什么呢?它又是与sequencer做了哪些交互? 默认是用的是m_sequencer,即sequence启动时指定的sequencer。 这里主要执行操作就是994行等待sequencer的授权。 put_response src/seq...
Libraries with distinct adapter indexes were multiplexed and, after cluster generation on FlowCell, were sequenced for 50 bp in the single read mode on a HiSeq 2000 sequencer at the IEO Genomic Unit in Milan. RNA sequencing For high-throughput sequencing, cDNA libraries were prepared from ...
my_sequencer为例: my_env: my_env中启动代码清单 首先创建一个my_sequence的实例seq,之后调用start任务。start任务的参数是一个sequencer指针,如果不指明此指针,则sequence不知道将产生的transaction交给哪个sequencer。在UVM中,objection一般伴随着sequence,通常只在sequence出现的地方才提起和撤销 ...
For best results it is always advised to create your own profiles from a dataset very closely matching the desired sequencer, chemistry, fragmentation, adapters, PCR cycles, etc. Furthermore, training on the same or a closely related species, is best to be sure that the necessary profile space...
uvm_sequencer::get_next_item m_select_sequence m_set_arbitration_completed()与start_item的wait_for_gant呼应,然后start_item执行完毕。 m_choose_next_request():就是通过仲裁算法以及lock/is_relevant等得到可以用的sequence_item。 m_wait_for_available_sequence()是在没有有效的sequence以后调用wait_for_...