etwenandClaude Opus 5
7a1967bc9a
CLAUDE.md: status to V1.2.1 / 2026-09-08; the BER paragraph now says Script A takes a baseline as well as Script C taking the closing sweep; and a new gotcha that 'clear' is what puts the lanes back, with the Script A versus Script C traffic reports as the way to tell whether they came back in time. ARCHITECTURE.md: Script A ref to V1.2.1 and its row updated with the baseline sweep; the BER row notes both call sites; the sleep 30 / BER_INTERVAL known issue now says three places rather than two; a new known issue for the missing settle between Script A's BER clear and its first traffic run; and the git tag checkbox to V1.2.1. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_014RetWKFZFG1ZHcitQAyhwM
50 lines
4.0 KiB
Markdown
50 lines
4.0 KiB
Markdown
# v1.2.1 — A BER baseline, so the SerDes numbers have something to be compared against
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## ✨ New features
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**Script A now takes a SerDes BER sweep before the first traffic run**
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* `blanton_ber.sh init → start → sleep 30 → report → stop → clear`, branched on `SWB_UNIT0` / `SWB_UNIT1` exactly like the traffic block beside it.
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* Script C already ran the closing sweep after its traffic report. With this one at the front, the pair brackets the soak — the same shape as the DSC scans added in v1.2.0, and the same reason: a BER figure on its own says very little, a *change* in it says a lot.
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* The `sleep 30` matches `blanton_ber.sh`'s `BER_INTERVAL`. Reporting before one full interval has accumulated reads a window that has not finished, and nothing warns you about it.
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## 🐛 Bug fixes
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**The new block's comment described the wrong position**
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* It was copied out of Script C, which runs BER *after* the traffic report, and the comment came with it and still said "after". In Script A the block runs *before* traffic. The comment now says what the code does and why the ordering is what it is.
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## ⚠️ Before you run
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* **Watch Script A's first traffic report on the first run.** PRBS holds the lanes out of normal operation and `blanton_ber.sh clear` is what releases them — and in Script A nothing settles between that `clear` and the `blanton_traffic_linespeed ps` / `init` that follows. Script C does not have this ordering, so the two reports are a built-in comparison: **if Script A shows NA or FAIL pairs that Script C does not, the lanes had not come back yet**, and a `sleep` after `clear` is the fix. This has not been run on hardware yet.
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* **`sleep 30` and `BER_INTERVAL` now live in three places** — Script A, Script C, and `blanton_ber.sh` itself. Changing one without the others silently reports a partial interval.
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* **BER, `blanton_traffic_linespeed` and `blanton_tr518.sh` cannot overlap.** They all take over the same ports. Script A now touches those ports twice before the soak even starts.
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* **`EN_TX_FIR` is still 0 by default**, so the DSC scans do not run unless you turn them on; a full scan is ~10 min in each of Script A and Script C.
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* **Replace `config.ttl` along with the macros.** Tera Term aborts the macro on an undefined variable rather than treating it as 0.
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* **`bcm_dsc_scan.sh` needs the execute bit**: `chmod +x ~/Blanton_Script/*.sh` after copying.
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* **`--runtime` is the job's overall limit, not a per-pass one.** `--passes` does not extend it.
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* **Script 4 has no teardown**: finish it with `blanton_tr518.sh stop` **and** `systemctl stop mlucas-amm`.
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* **Script 5 (reboot cycle) has no exit condition.** A 199-cycle / 60-hour run has now been analysed: PCIe AER stayed at 0, all 218 traffic pairs and all 864 lanes passed every cycle, and the BMC never reset. Two things it did surface — `bmc-first-enroll` does not exist on that BMC build, and NFC returned FAIL on every cycle.
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* **`blanton_multiphase_margin.sh save` is permanent**, and must not be mixed with `margin.sh`.
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* **`READ_VIN` and `READ_IIN` are still not in the ADPM12200 coefficient table.**
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* **The BMC USB service log only exists on the USB stick.**
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* **`FAN_SPEED` is 100.**
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* **Still unverified from v1.1.0**: the `ce0` ingress mirror, the 120 s settle in `blanton_tr518.sh`, and `test mode nr=no` on stop.
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## 📦 Downloads
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| File | Contents |
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| `Script_ABC_Blanton_V1.2.1.zip` | The full Tera Term working directory, including `Blanton_Script/` to copy onto the DUT |
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```bash
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chmod +x ~/Blanton_Script/*.sh
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grep -rlU $'\r' ~/Blanton_Script # expect no output
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ls ~/hammer/tools/amd/mlucas-avx2 # must already be there
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```
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## 🔗 Links
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* [ARCHITECTURE.md](https://etgit.et-wen.com/etwen/Blanton_TTL_Script/src/branch/main/ARCHITECTURE.md) — test flow, data models, constraints
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* [CLAUDE.md](https://etgit.et-wen.com/etwen/Blanton_TTL_Script/src/branch/main/CLAUDE.md) — commands and the bench gotchas
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**Full changelog:** [V1.2.0...V1.2.1](https://etgit.et-wen.com/etwen/Blanton_TTL_Script/compare/V1.2.0...V1.2.1)
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