OpenXiangShan / OpenXiangShan/ChiselAIA

【csr_wdata_vld 时序是怎样的?】

Open
#1 0 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Dominant language
Scala
Stars
13
Forks
7
PR merge metrics
No merged PRs in 30d

Description

IMSIC接口时序上,南湖与昆明湖项目是否是一致的?现在看到南湖IP:i_csr_wdata_vld与i_csr_addr_vld同时存在,昆明湖只有一个vld,两者时序是是否一致?
若两个信号的时序是一样的,如下内部有一块是illegal的访问,预期会有bug:
image
image

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by locating the IMSIC interface and the handling of i_csr_wdata_vld and i_csr_addr_vld in the ChiselAIA sources. Compare the Nanhu timing, where both signals exist, with the Kunminghu single-vld timing, then inspect the illegal-access case illustrated in the attached images; done means the timing relationship and any resulting bug are documented or corrected.

Written by the indexing model from the issue text.

Assessment

Tech stack
scala
Domain
embedded-iot
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.