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humility 0.13.0.699 failed to write cosmo-os QSPI on alfred

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难度
4/5
预计耗时
3-5 天
新手友好度
48/100
Issue 类型
缺陷
描述清晰度
基本清楚
活跃度
冷清
技术栈
rust
领域
devtools, embedded-iot

调研方向

从 qspi 命令路径及其 CMSIS-DAP/probe-rs 传输处理入手，使用在 cosmo-os 上提供的复现命令 h qspi -D ...。将 humility 0.13.0.699 与成功运行的 0.13.0 二进制文件进行比较，作为基线。完成的标准是当前版本能够反复写入镜像，且不会出现传输错误或 USB 超时错误。

由索引模型根据 Issue 内容生成。

描述

I was trying to write a new host phase1 to flash on cosmo-os from alfred, and three attempts in a row failed with
variants of this.

alfred(cosmo-os)% h qspi -D /staff/andy/os/cosmo.rom && cycle
humility: attached to 1fc9:0143:WTECYVHYHSQD4 via CMSIS-DAP V1
humility: Using existing slot settings
2026-06-23T16:47:17.459592Z ERROR probe_rs::probe::cmsisdap::commands::transfer: Transfer count larger than requested number of transfers
2026-06-23T16:47:17.459834Z  WARN probe_rs::session: Could not clear all hardware breakpoints: An ARM specific error occurred.

Caused by:
    0: The debug probe encountered an error.
    1: An error which is specific to the debug probe in use occurred.
    2: Error handling CMSIS-DAP command Transfer.
    3: Unexpected answer to command.
2026-06-23T16:47:17.461481Z  WARN probe_rs::probe::cmsisdap: CMSIS_DAP: Only 1/2 transfers were executed, but no error was reported.
2026-06-23T16:47:17.461579Z  WARN probe_rs::session: Failed to deconfigure device during shutdown: Arm(Other("Possible error in CMSIS-DAP probe: Only 1/2 transfers were executed, but no error was reported."))
2026-06-23T16:47:17.461974Z  WARN probe_rs::probe::cmsisdap: CMSIS_DAP: Only 2/3 transfers were executed, but no error was reported.
humility qspi failed: An ARM specific error occurred.

Caused by:
    0: The debug probe encountered an error.
    1: An error which is specific to the debug probe in use occurred.
    2: Error handling CMSIS-DAP command Transfer.
    3: Timeout in USB communication.

alfred(cosmo-os)% h qspi -D /staff/andy/os/cosmo.rom && cycle
humility: attached to 1fc9:0143:WTECYVHYHSQD4 via CMSIS-DAP V1
humility: Using existing slot settings
humility: skipping sector 0
humility: erased 9.88 MiB in 12 seconds
2026-06-23T16:59:29.475567Z  WARN probe_rs::session: Could not clear all hardware breakpoints: An ARM specific error occurred.

Caused by:
    0: The debug probe encountered an error.
    1: An error which is specific to the debug probe in use occurred.
    2: Error handling CMSIS-DAP command Transfer.
    3: Timeout in USB communication.
2026-06-23T16:59:29.526139Z  WARN probe_rs::session: Failed to deconfigure device during shutdown: Arm(Probe(ProbeSpecific(BoxedProbeError(Send { command_id: Transfer, source: Timeout }))))
humility qspi failed: An ARM specific error occurred.

Caused by:
    0: Error using access port FullyQualifiedApAddress { dp: Default, ap: V1(0) }.
    1: Failed to read register DRW at address 0xd0c
    2: The debug probe encountered an error.
    3: An error which is specific to the debug probe in use occurred.
    4: Error handling CMSIS-DAP command Transfer.
    5: Timeout in USB communication.
alfred(cosmo-os)%

I then grabbed the humility binary from igor which just reports as 0.13.0 and that succeeded first time:

alfred(cosmo-os)% pfexec ./humility qspi -D /staff/andy/os/cosmo.rom
humility: attached to 1fc9:0143:WTECYVHYHSQD4 via CMSIS-DAP V1
humility: Using existing slot settings
humility: skipping sector 0
humility: erased 3.19 MiB in 3 seconds
humility: hashed 32.00 MiB, wrote 3.19 MiB in 6 minutes
主要语言
Rust
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派生
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环境准备

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从这里开始

  1. 先读完整个 Issue，再读项目的贡献指南。
  2. 在 Issue 下留言说明你要接手 —— 这能避免两个人做同样的事。
  3. Fork 仓库，在一个分支上完成修改。
  4. 提交 Pull Request，并在描述里引用这个 Issue 编号。

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