- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
配置CPRI-IP之后,Generate Example Design 工程中会自动生成0GE_MAC,Native-PHY.
5.3 仿真所使用的Questasim版本为 “Questasim SE-64 10.6f”
仿真时的时序图:
tx_valid为高电平期间,tx_sop与tx_eop为高电平期间,发送C面的IE信息应该保持不变,为什么tx_valid &tx_sop ==1,与 tx_valid & tx_eop == 1的位置字段数据跳变?
Link Copied
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
追加描述如下:
修改C面数据包生成模块bug,如下图所示:
在此基础上仿真工程设置C面、U面使能,压缩/解压缩使能,压扩方法采用块浮点算法,设置压缩后数据位宽为8bit如下图所示:
整个例子工程仿真:C面回环完全正确。U面数据出现如下问题:
oran ip tx发送侧信号输入时序为:avst_sink_u_valid,avst_sink_startofpacket,avst_sink_endofpacket使能期间,tx_u_frameid,tx_u_subframeid,tx_u_slotID,tx_u_symbolid等信号均保持不变,但在rx接受侧相应信号解析的时序出现错误:
rx_u_frameid,rx_u_subframeid,rx_u_slotID,rx_u_symbolid等信号在avst_source_u_valid,avst_source_startofpacket,avst_source_endofpacket使能期间发生跳变;
更改仿真程序为:oran IP在AVST侧自回环,如下图所示,U面数据时序问题依然存在。
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
继续追加仿真描述:
目前仿真只做U面数据仿真,禁止C面数据,与C/U同时使能现象出现的时序问题一致。
仿真例程ehernet phy IP收发回环:
修改为o-ran IP AVST收发自回环:
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
此问题单关闭
原因已经定位:o-ran的user guide手册,时序图与文档描述不完全一致,rx_sec_hdr_valid信号么有体现出来,rx_u_dataDirection等字段信息没体现出don't care
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hi @yufuliang , thanks for update your result
冒犯打搅一下: 我们也在尝试英特尔 "eCPRI + ORAN IP" 来验证 ORAN 7-2 的方案,但遇到了跟你一样问题 (仿真工程中 C Plane 有数据,但 U Plane 一直没有数据出来~)。 是否是 Intel ORAN User Guide 文档有啥参数遗漏了, 您能讲下这个问题是具体怎么解决的吗 ?
( 另外. 如果您能分享下最终正常仿真的 oran simulation 工程,那就太好了 ( 1684392931@qq.com )。
非常感谢 ~
Thanks & Best Regards
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hi,
Please check if the top level testbench file has ENABLE_UPLANE parameter set to 1 or 0.
Regards
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
As there is no further response to the case, opening this case for community responses.
Regards
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page