docs: Update CLAUDE / ARCHITECTURE for V1.2.0 and add the release note

CLAUDE.md: status to V1.2.0 / 2026-09-07; the PRBS paragraph now says the A/B/C call sites were deleted in V1.1.9 rather than commented out; the DSC scan and parser get a commands block and a line in the status summary; the soak loop uses sleep 60; the bcmcmd gotcha records that bcm_dsc_scan.sh hit the same stdin trap on 2026-09-07 and why the existing marker check could not see it; and a new gotcha on pause versus sleep. ARCHITECTURE.md: bcm_dsc_scan.sh / bcm_dsc_parse.sh in the tree and a Key Features row of their own; EN_TX_FIR in the config.ttl line; Script A ref to V1.2.0 and the A / B / C rows updated for the DSC steps and sleep; constraint 10 extended with the recurrence; new constraint 18 (pause stops the macro, sleep stops the DUT) with the old 18 renumbered to 19 and EN_TX_FIR added to it; the git tag checkbox to V1.2.0; the PRBS and bmc_monitor_ddr known issues corrected from "commented out" to "deleted"; and a new known issue for the DSC scan being off by default and sharing ports with the other traffic tools. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_014RetWKFZFG1ZHcitQAyhwM
feat(ttl): Wait on the DUT with sleep, and gate the DSC scan on EN_TX_FIR
2026-09-07 10:02:42 +08:00 · 2026-09-07 10:02:42 +08:00 · 2026-09-07 10:02:25 +08:00
8 changed files with 266 additions and 57 deletions
@@ -161,7 +161,7 @@ Blanton_TTL_Script/
        │
        ├── 4_Blanton_Script_thermal_safety.ttl  # 熱 / 安規：獨立跑，不接 A→B→C
        ├── 5_Blanton_Script_Reboot_Cycle.ttl    # 重開機循環：獨立跑，while 1 無止境（未上機驗證）
-        ├── config.ttl                 # 全域設定：testcase 名、EN_Margin / EN_log / EN_timestamp、
+        ├── config.ttl                 # 全域設定：testcase 名、EN_Margin / EN_TX_FIR / EN_log / EN_timestamp、
        │                              #   風扇與 SWB 宣告、SSD/USB/BMC_USB 壓力秒數、三個 prompt 字串
        ├── hammer/                    # 🚫 gitignored — mlucas ELF binary（~99 MB），DUT image 自帶，
        │                              #   publish.sh 也排除；Script B / Script 4 只負責 chmod +x 後執行
@@ -199,7 +199,11 @@ Blanton_TTL_Script/
            ├── mgmt_ping_monitor.sh       # 10G/1G 管理網路 ping 監控（iproute2）
            │                              #   eth0→TARGET_10G、eth1→TARGET_1G，兩張卡同時持續 ping
            ├── port_prbs_monitor.sh       # 100G uplink PRBS 測試（bcmcmd phy diag）
+            │                              #   ⚠️ V1.1.9 起 A/B/C 內註解掉的呼叫已整段刪除，只剩手動執行
            ├── blanton_ber.sh             # 全機 SerDes BER 掃描（phydiag prbs / prbsstat）
+            ├── bcm_dsc_scan.sh            # 全機 SerDes DSC dump（phydiag <port> dsc，~445 port × 2 unit）
+            │                              #   由 EN_TX_FIR 控制，A 與 C 各掃一次；單次約 10 分鐘
+            ├── bcm_dsc_parse.sh           # DSC raw log → <prefix>_lane.csv / _pm.csv（純 sh + awk）
            ├── blanton_multiphase_margin.sh # 多相 VRM margin（原生 i2c，38 條軌）
            ├── pwr_brick.sh               # PDB / CPB power brick 讀值（VI2C ch4）
            ├── nfc_polling.sh             # NFC tag 背景輪詢 + PASS/FAIL 統計
@@ -210,7 +214,7 @@ Blanton_TTL_Script/
            │                              #   ⚠️ 已納入交付，但 A/B/C 的呼叫仍註解掉（bring-up 中）
            ├── usb_target.sh              # 偵測 USB 裝置節點／掛載點（排除系統碟）
            ├── bmc_monitor.sh             # BMC 監控：free -m + I2C 寫入/讀回圖樣測試
-            ├── bmc_monitor_ddr.sh         # ⚠️ 已停用：B/C 內呼叫處已註解，DDR 壓力改走 bgctl + bmc-manager
+            ├── bmc_monitor_ddr.sh         # ⚠️ 已停用：V1.1.9 起 B/C 內的註解區塊已刪除，DDR 壓力走 bgctl + bmc-manager
            │                              #   ↑ 三支都要 chmod +x 才能跑（見 Key Constraints）
            └── LTC2980_Margin_Script/     # 電壓 margin 子專案（另有獨立 repo）
                ├── margin.sh              # margin_init/status/set/apply_profile/save
@@ -370,9 +374,9 @@ PROFILE_CHANNELS=( "0:high:8" "1:low:8" ... )   # "channel:operation:change_perc

 | 模組 | 進入點 | 功能 |
 |------|--------|------|
-| **Script A（Pre-test）** | `1_Blanton_Script_A.ttl` V1.1.8 | root 登入 → `date -s` 對時 → 清 job log → **收掉前一輪殘留**（`hw-test-session finish` → `bgctl reset --yes` → `bgctl stop --all` → `bgctl list` 確認清空）→ `hw-test-session start` → **設定風扇轉速** → **等資料面就緒**（`wait_init.ttl`）→ DUT 清單（boot/version/fwutil/syseeprom/ssdhealth/TPM/NVMe）→ BMC enroll + version/status → source bash 工具 → 清/讀 7 組 PCIe AER + `ras-mc-ctl --summary` → `lspci` → margin → PMON → dmesg → **10G/1G 管理網路 ping** → **NFC 基線**（start → 30s → stop → report）→ 100G uplink 設定與狀態 → **一輪流量基線** → `show uptime` |
-| **Script B（Stress）** | `2_Blanton_Script_B.ttl` | **V1.1.8 起 `mlucas-avx2 -cpu 0:15` 由 `systemd-run --unit=mlucas-amm`（`Type=exec`、`Restart=always`）啟動，不再是 shell 的 `&` 背景 job** + `bgctl run` 的 `memtester` / SSD / USB 壓力（v1.1.7 起 SSD/USB 的 `--runtime`/`--passes` 讀 `config.ttl` 的 `SSD_RUNTIME`/`SSD_COUNT`、`USB_RUNTIME`/`USB_COUNT`；BMC memtester 不帶次數 = 跑到被停） + BMC DDR（`bmc-manager run memtester`）→ BMC USB net test（探測 cdc_ncm 介面，`systemd-run` 掛 `BMC_USB_RUNTIME` 秒的 ping，V1.1.8 前寫死 4 小時）→ 啟動 mgmt ping 監控 → **啟動 NFC 輪詢** → `jobs` / `systemctl is-active mlucas-amm` / `bgctl list` → traffic（依 `SWB_UNIT`）→ `while 1` 每輪 PMON + `bgctl list`/`jobs`/`systemctl is-active mlucas-amm` + `pause 60`（**V1.1.4 起 margin 不在迴圈內**）|
-| **Script C（Post-test）** | `3_Blanton_Script_C.ttl` | `kill $(jobs -p)` + **`systemctl stop mlucas-amm`**（systemd unit 不是 shell job，`jobs -p` 抓不到）+ `bgctl stop --all` / `reset` + 停 BMC USB unit、mgmt ping 與 **NFC 輪詢** → PMON + dmesg → 7 組 AER + `ras-mc-ctl` → BMC USB `journalctl` **寫進 `log/bmc_usb_net.log`**（不再印在 console） → `ip -s link show eth0/eth1` → `cat` mlucas log（並 `cp` 進 job 目錄一起帶走）→ **NFC `report`** → traffic `stop` + `report` → **BER 掃描**（依 `SWB_UNIT`）→ NVMe 健康 → `show reboot-cause` → **margin 掃描**（`EN_Margin`，V1.1.4 由 Script B 移來）→ `uptime` → **job log 複製到 USB（帶時戳）** → `exit` + wait『Script done』→ `hw-test-session finish` |
+| **Script A（Pre-test）** | `1_Blanton_Script_A.ttl` V1.2.0 | root 登入 → `date -s` 對時 → 清 job log → **收掉前一輪殘留**（`hw-test-session finish` → `bgctl reset --yes` → `bgctl stop --all` → `bgctl list` 確認清空）→ `hw-test-session start` → **設定風扇轉速** → **等資料面就緒**（`wait_init.ttl`）→ DUT 清單（boot/version/fwutil/syseeprom/ssdhealth/TPM/NVMe）→ BMC enroll + version/status → source bash 工具 → 清/讀 7 組 PCIe AER + `ras-mc-ctl --summary` → `lspci` → margin → PMON → dmesg → **10G/1G 管理網路 ping** → **NFC 基線**（start → 30s → stop → report）→ 100G uplink 設定與狀態 → **一輪流量基線** → **SerDes DSC 基線**（`EN_TX_FIR`）→ `show uptime` |
+| **Script B（Stress）** | `2_Blanton_Script_B.ttl` | **V1.1.8 起 `mlucas-avx2 -cpu 0:15` 由 `systemd-run --unit=mlucas-amm`（`Type=exec`、`Restart=always`）啟動，不再是 shell 的 `&` 背景 job** + `bgctl run` 的 `memtester` / SSD / USB 壓力（v1.1.7 起 SSD/USB 的 `--runtime`/`--passes` 讀 `config.ttl` 的 `SSD_RUNTIME`/`SSD_COUNT`、`USB_RUNTIME`/`USB_COUNT`；BMC memtester 不帶次數 = 跑到被停） + BMC DDR（`bmc-manager run memtester`）→ BMC USB net test（探測 cdc_ncm 介面，`systemd-run` 掛 `BMC_USB_RUNTIME` 秒的 ping，V1.1.8 前寫死 4 小時）→ 啟動 mgmt ping 監控 → **啟動 NFC 輪詢** → `jobs` / `systemctl is-active mlucas-amm` / `bgctl list` → traffic（依 `SWB_UNIT`）→ `while 1` 每輪 PMON + `bgctl list`/`jobs`/`systemctl is-active mlucas-amm` + `sleep 60`（**V1.1.4 起 margin 不在迴圈內**；V1.2.0 起等待走 DUT 端 `sleep` 而非 macro 端 `pause`）|
+| **Script C（Post-test）** | `3_Blanton_Script_C.ttl` | `kill $(jobs -p)` + **`systemctl stop mlucas-amm`**（systemd unit 不是 shell job，`jobs -p` 抓不到）+ `bgctl stop --all` / `reset` + 停 BMC USB unit、mgmt ping 與 **NFC 輪詢** → PMON + dmesg → 7 組 AER + `ras-mc-ctl` → BMC USB `journalctl` **寫進 `log/bmc_usb_net.log`**（不再印在 console） → `ip -s link show eth0/eth1` → `cat` mlucas log（並 `cp` 進 job 目錄一起帶走）→ **NFC `report`** → traffic `stop` + `report` → **SerDes DSC 收尾**（`EN_TX_FIR`）→ **BER 掃描**（依 `SWB_UNIT`）→ NVMe 健康 → `show reboot-cause` → **margin 掃描**（`EN_Margin`，V1.1.4 由 Script B 移來）→ `uptime` → **job log 複製到 USB（帶時戳）** → `exit` + wait『Script done』→ `hw-test-session finish` |
 | **Script 4（Thermal / Safety）** | `4_Blanton_Script_thermal_safety.ttl` | **獨立腳本，不接 A→B→C。** Script A 式的環境建立（登入 / session / 風扇 / `wait_init` / DUT 清單 / BMC / PCIe 清除 / `pcie_bus` / PMON / dmesg）→ **滿載**（`mlucas-avx2 -cpu 0:15`，V1.1.8 起與 Script B 同樣掛成 `mlucas-amm` systemd unit + `blanton_tr518.sh start`）→ `while 1`：PMON + `TH6_SWB0/1_power_readback.sh` + `bgctl list` / `jobs` / `systemctl is-active mlucas-amm`，`pause 60`。**沒有收尾段** —— 中斷後 DUT 仍在 `port cd lb=mac` / `l2 learn off` / `test mode nr=yes`，且 CPU 仍滿載，要手動 `blanton_tr518.sh stop` + `systemctl stop mlucas-amm` |
 | **Script 5（Reboot Cycle）** | `5_Blanton_Script_Reboot_Cycle.ttl` | **獨立腳本，不接 A→B→C。** `while 1`：登入 → `sudo -i` → 對時 → 風扇 → **Check Pt1~Pt13**（DUT/BMC info、mgmt ping、NFC、SSD、USB、BMC USB、port status + 15s traffic、BER、NVMe、platform data、dmesg i2c、PCIe error counters）→ `show uptime` → `reboot` → `wait "Booting in blind mode"`。`cnt_cycle` 每輪 +1 印在標頭。**沒有結束條件** —— 要停就關掉 Tera Term 的 macro。**尚未上機驗證** |
 | **SWB loopback 流量** | `blanton_traffic_linespeed <sub> [-u 0\|1\|all]` | `init`（VLAN 30..137，成對 `cdN`/`cdN+32`）→ `clear` → `start`（`tx 200 length=324 PatternRandom=yes`，v0.7.0 起）→ `stop` → `report`（per-pair TX/RX 交叉比對 PASS/FAIL）；另有 `ps`（link/speed）與 `run`（一條龍）。**V0.6.0 起含 100G uplink `ce0`**（VLAN 138）：它沒有 loopback 對象，靠 **ingress mirror 打回自己**維持循環，`report` 最後一列就是它，底下再接一份跨 unit summary |
@@ -386,8 +390,9 @@ PROFILE_CHANNELS=( "0:high:8" "1:low:8" ... )   # "channel:operation:change_perc
 | **Margin 寫 NVM** | `margin_save` / `margin_save all` / `margin_save blanton` | ⚠️ 永久寫入。`0x15` 送 PMBus **send-byte**（不帶 data byte）。`all` = 依 `settings/` 走 9 顆、跑完還原原本載入的板子；`blanton` = 本平台捷徑，18 顆全走原生 i2c bus（`MARGIN_BLANTON_STORE` 表），不需 `margin_init`。每筆之間 `MARGIN_STORE_SETTLE`（0.5s），工具**不 poll busy bit** |
 | **管理網路 ping** | `mgmt_ping_monitor.sh {start\|stop\|status\|fg\|tail\|clear\|summary}` | 一輪 = 10G leg + 1G leg，各自 `ip address/route replace` 後 `ping -I <if>` 打自己的對端；兩張卡都保持 up。每 leg 記 `ip -s link show` 與該卡的 TX/RX packet delta，另出一行可 grep 的 `RESULT` |
 | **BMC 監控** | `bmc_monitor.sh {start\|stop\|status\|fg\|tail\|clear}` | 由 host 端 `bmc-manager run` 週期取樣 `free -m`，另加一組 **I2C 寫入/讀回圖樣測試**（bus 1、addr 0x41、offset 0x00C0，寫 `55AA55AA` 讀回、再寫 `AA55AA55` 讀回）。B 啟動、C 停止並 `cat log/bmc_poll.log` |
-| **BMC DDR 壓力** | `bmc_monitor_ddr.sh` | ⚠️ **已停用** —— B/C 內呼叫處已註解，改由 `bgctl run bmc-manager run memtester` 取代。檔案保留未刪 |
-| **100G PRBS** | `port_prbs_monitor.sh {start [both\|a\|b]\|stop\|status\|report\|clear}` | 兩個 uplink 各一個 worker，可同時或單獨跑。setup（`lpmode off` → `prbs set` → `prbsstat STArt`）→ 週期 `prbs get`（判定）+ `prbsstat Ber`（只記錄）→ teardown（`STOp` + `prbs clear`）。輸出含 `PRBS OK!` 才算 PASS。**⚠️ A/B/C 的呼叫目前註解掉** |
+| **BMC DDR 壓力** | `bmc_monitor_ddr.sh` | ⚠️ **已停用** —— V1.1.9 起 B/C 內的註解區塊已刪除，改由 `bgctl run bmc-manager run memtester` 取代。檔案保留未刪 |
+| **SerDes DSC 擷取** | `bcm_dsc_scan.sh [-u 0\|1] [-f <name>] [-F] [-n] [-C]` + `bcm_dsc_parse.sh -i <log> -o <prefix>` | `bcmcmd -n <unit> -c "dsh -c 'phydiag <port> dsc'"` 掃全清單（1 個 100G + 445 個 200G port）× 2 unit，raw log 寫進 `<script_dir>/log` 再 `cp` 到 `/host/hw-eval/jobs`。`-f` 支援 `%u` / `%t`；沒帶 `%u` 時自動插 `_u0`/`_u1`。成功與否**不看 `bcmcmd` 的 exit code**，改比對 `SERDES DISPLAY DIAG DATA END` 數量 + 實際迭代筆數，結尾印 `### DSC_SCAN_DONE rc=<n>`。parse 端輸出 `_lane.csv`（每 lane：TXEQ/RXFFE/DFE/EYE/SNR）與 `_pm.csv`（每 pm_id：溫度/PLL/lane 數/統計）。**由 `EN_TX_FIR` 控制，預設關** |
+| **100G PRBS** | `port_prbs_monitor.sh {start [both\|a\|b]\|stop\|status\|report\|clear}` | 兩個 uplink 各一個 worker，可同時或單獨跑。setup（`lpmode off` → `prbs set` → `prbsstat STArt`）→ 週期 `prbs get`（判定）+ `prbsstat Ber`（只記錄）→ teardown（`STOp` + `prbs clear`）。輸出含 `PRBS OK!` 才算 PASS。**⚠️ V1.1.9 起 A/B/C 內的註解呼叫已刪除，只能手動跑** |
 | **SerDes BER 掃描** | `blanton_ber.sh {init\|clear\|start\|stop\|report} [-u 0\|1\|all]` | 全機每個對接 port 的 PRBS BER：`prbs set p=3` + `prbs get`（確認每條 lane 都鎖上）→ `prbsstat STArt Interval=30` →（等一個 interval）→ `prbsstat Ber` → `STOp` → `prbs clear`。`report` 一列一條 lane，**BER < 1e-6 才 PASS**，最後跨 unit 的 summary 帶最差 lane。⚠️ PRBS 期間 link 顯示 DOWN、不過流量 |
 | **TR518 負載** | `blanton_tr518.sh {start\|stop} [-u 0\|1\|all]` | `port cd lb=mac` → `l2 learn off` → `test mode nr=yes` → `tr 518 ... testphase=1`，然後 settle `TR_SETTLE_SEC`（120s）再讓人量功耗。`stop` 只送 `port cd lb=none`（照 `TR518.txt`），L2 學習與 test mode **不會還原**，`TR_RESTORE_*=1` 才會 |
 | **PDB / CPB brick** | `pwr_brick.sh show [-r]` | 5 顆 brick 的 Vin / Iin / Vout / Iout / Temp（SWB0 `0x62`/`0x63`、SWB1 `0x60`/`0x61`、CPB `0x26`）。四顆 ADPM12200 **每個量各自一個 PMBus PAGE**（Vin 9、Iin 10、Vout 2、Iout 14、Temp 18），讀之前一定要先寫 PAGE —— `blanton_pwr_data.sh` 完全沒寫，所以整張 PDB 表都是 NA。換算用手冊 DIRECT 公式 `X=(1/m)(Y×10⁻ᴿ−b)`。每個值重讀到通過三道檢查為止（非 `0xFFFF`、非 `0x0000`、落在合理範圍）—— 這條匯流排**只壞高位元組**，`11.98 V` 會變成 `32.00 V`，全一過濾擋不住 |
@@ -510,6 +515,11 @@ pwr_data
    `vlan create` 的 `Entry exists`（重跑 init）與 `vlan remove` 的 `not found`（init 前先 stop）
    當良性情況分開計數。另外 `bcmcmd` 一律以 `</dev/null` 執行 ——
    否則它會吃掉 while 迴圈的 stdin，導致**只有第一個 VLAN 被設定**（V0.3.1 修的 bug）。
+    **2026-09-07 `bcm_dsc_scan.sh` 又踩了同一個坑**（port 清單走 stdin，445 個 port 只掃了 1 個），
+    而且因為 `### PORT` marker 與 dsc 區塊數量一起變少，原本的比對檢查完全看不出來、`rc=0`。
+    修法：迴圈改讀 fd 3（`done 3< "$PORTFILE"`）+ `bcmcmd ... < /dev/null`，再加一道
+    「實際迭代筆數 == 清單筆數」的獨立檢查。**寫任何餵檔案給 `while` 又在裡面呼叫 `bcmcmd` 的迴圈，
+    都要假設它會讀 stdin；而且完整性檢查不能只比對兩個會一起變少的數字。**
 11. **DUT 密碼不得進 git**：`1_Blanton_Script_A.ttl` 目前的 `sendln "YourPaSsWoRd"` 是 placeholder，
    實際帳密必須放 `secret/config_secret.ttl`（gitignored）並由 `config.ttl` include。
 12. **`.sh` / `.conf` 必須是 LF**：CRLF 的 shell script 在 SONiC 上直接掛
@@ -549,8 +559,15 @@ pwr_data
    ⚠️ **`4_Blanton_Script_thermal_safety.ttl` 用同一個 `mlucas-amm` unit，但它沒有收尾段**，
    所以那行 `systemctl stop mlucas-amm` 必須由測試員手動下 —— 這是 Script 4 目前
    唯一一個「不下就會延續到下一輪」的負載。
-18. **`config.ttl` 少一個變數會讓 macro 當場中止**，不是當成 0。V1.1.8 新增 `EN_timestamp`
-    （Script A `logopen` 的第 5 個參數）與 `BMC_USB_RUNTIME`（Script B 的 ping unit）。
+18. **`pause` 停的是 macro，`sleep` 停的是 DUT。** V1.2.0 起 A/B/C 的等待一律改成
+    `sendln "sleep N"` + `wait prompt_sonic_root`。`pause N` 期間 macro 不理會 DUT，shell 是閒著的，
+    等於用猜的估上一個指令要跑多久 —— DUT 一忙就會提早往下送指令；改成 DUT 端 `sleep` 之後，
+    prompt 回來才繼續，兩邊不可能走散，而且這段等待會帶時戳進 log，事後看得出哪一輪跑久了。
+    ⚠️ **Script 4 與 Script 5 尚未轉換，仍在用 `pause`**；B/C 開頭的 `pause 1` 也保留
+    （它在登入前執行，沒有 prompt 可等）。
+19. **`config.ttl` 少一個變數會讓 macro 當場中止**，不是當成 0。V1.1.8 新增 `EN_timestamp`
+    （Script A `logopen` 的第 5 個參數）與 `BMC_USB_RUNTIME`（Script B 的 ping unit）；
+    V1.2.0 再加 `EN_TX_FIR`（A/C 的 DSC 掃描與 C 的四行 `cp`，預設 0）。
    只更新 `.ttl` 卻沿用舊的 `config.ttl`，Script A 會停在 `logopen` 那一行。
    另外 **時間戳的「格式」不在 macro 裡** —— 它在 Tera Term 的
    Setup → Additional settings → Log，存在那台電腦的 `TERATERM.INI`，會跟著 PC 而不是跟著腳本走。
@@ -787,7 +804,7 @@ margin status、全部 VRM 軌的 Vin/Vout/Iout/Temp、CB + ICB 溫感讀值，
 - [ ] `CHANGELOG.md`：延續三支腳本頂端的 Version History，集中成一份
 - [ ] 三支腳本的 header 版號與 `CHANGELOG.md` 對齊，`config.ttl` 加 `script_version` 並寫進 log 開頭
 - [ ] `docs/TTL_Script_Blanton_Status_*.xlsx` 更新為全 OK，或把剩餘項目移進 Future Extensions
- [x] 打 git tag，push `nas` + `gitea`（已至 `V1.1.8`；`publish/` 依 Script A 檔頭版號打包）
+- [x] 打 git tag，push `nas` + `gitea`（已至 `V1.2.0`；`publish/` 依 Script A 檔頭版號打包）

 **驗收條件：** 從 zip 解壓到一台乾淨的測試 NB，照 README 操作，不看原始碼就能完成一輪 A→B→C
 並產出 summary；`publish/` 內容與 git tag 一致。
@@ -821,14 +838,19 @@ margin status、全部 VRM 軌的 Vin/Vout/Iout/Temp、CB + ICB 溫感讀值，
  Script A 既不往下走也不報錯。可加最大重試次數 + `messagebox` 提示。
 - **腳本的執行權**：`mgmt_ping_monitor.sh` 與 `bmc_monitor.sh`（以及已停用的 `bmc_monitor_ddr.sh`）需人工 `chmod +x`。
  可在 Script B 起它之前補一行（比照既有的 `chmod +x ~/hammer/tools/amd/mlucas-avx2`），或在 publish 時處理。
- **`bmc_monitor_ddr.sh` 已停用**：B/C 內的呼叫已註解，DDR 壓力改由 `bgctl run bmc-manager run memtester`
-  取代。檔案還留在 repo，待確認不再需要後刪除，或在檔頭標註停用。
+- **`bmc_monitor_ddr.sh` 已停用**：V1.1.9 起 B/C 內那段註解掉的呼叫已刪除，DDR 壓力由
+  `bgctl run bmc-manager run memtester` 取代。檔案還留在 repo，待確認不再需要後刪除，或在檔頭標註停用。
  （`bmc_monitor.sh` 已於 2026-08-25 重新啟用，並加上 I2C 寫入/讀回圖樣測試。）
 - **`rm /host/hw-eval/jobs/*` 清不掉子目錄**：Script A 用的是不帶 `-r` 的 `rm`，但 Script C
  是 `cp -r` 那個目錄，代表裡面可能有子目錄。清不乾淨的話，上一輪的 job log 會被當成這輪的一起
  複製到 USB。要確認 `bgctl` 的產出結構，必要時改成 `rm -rf .../jobs/*`。
- **100G PRBS 尚未接進 A/B/C**：`port_prbs_monitor.sh` 已隨包交付、可手動執行，但三支腳本裡的呼叫
-  都還註解著（bring-up 中）。要啟用時記得 PRBS 期間 link 會顯示 down，`stop` 之後才會回來。
+- **100G PRBS 已從 A/B/C 移除**：`port_prbs_monitor.sh` 仍隨包交付、仍可手動執行，但 V1.1.9 起
+  三支腳本裡那些註解掉的呼叫已整段刪除（連同 Script C 的 `bmc_monitor_ddr.sh` 區塊）。
+  要接回去得重寫，不是把註解拿掉。啟用時記得 PRBS 期間 link 會顯示 down，`stop` 之後才會回來。
+- **DSC 擷取預設是關的**：`EN_TX_FIR = 0`，所以出貨設定不會跑 `bcm_dsc_scan.sh`。
+  開啟後 Script A 與 Script C 各掃一次、整輪多約 20 分鐘；只要單邊資料可以在腳本裡改成 `-u 0`。
+  掃描本身是唯讀（`phydiag ... dsc` 不改 SerDes 設定），但**它與 `blanton_ber.sh` /
+  `blanton_traffic_linespeed` / `blanton_tr518.sh` 一樣都在動同一批 port，不要同時跑**。
 - **Script 5（Reboot Cycle）尚未上機驗證**：`5_Blanton_Script_Reboot_Cycle.ttl` 隨 V1.1.7 交付，
  但還沒在真 DUT 上跑過一輪完整循環。兩個要現場確認的點：`wait "Booting in blind mode"` 是否
  真的在每一版開機訊息裡出現（沒出現就會永遠等下去，而且沒有 `timeout` 保護）；以及每輪重跑
@@ -9,15 +9,19 @@ DUT 端的取數能力由一組 **bash 工具庫** 提供（CB FPGA `pcimem` →

 完整架構見 [ARCHITECTURE.md](ARCHITECTURE.md)。

-**目前狀態（2026-09-06）**：Script A 為 **V1.1.8**（A 集中記錄所有 TTL 的變更）。涵蓋
+**目前狀態（2026-09-07）**：Script A 為 **V1.2.0**（A 集中記錄所有 TTL 的變更）。涵蓋
 PCIe AER / DDR EDAC / PMON+TPM / 電壓 margin（9 顆 LTC2980）/ SWB loopback 線速流量 /
 10G+1G 管理網路 ping / BMC DDR 與 USB / NVMe 健康，壓力層走平台的 `bgctl`。
 switch unit 數量由 `config.ttl` 的 `SWB_UNIT0` / `SWB_UNIT1` 宣告，風扇轉速由 `FAN_SPEED` 指定
 （預設 100 = 全速；soak 是熱測試，散熱不該是變因）。
 測試 job log 收在 DUT 的 `/host/hw-eval/jobs/`，Script C 結束時掛好 USB 再帶時戳複製到 `/mnt/usb/`。
-100G PRBS（`port_prbs_monitor.sh`）已隨包交付，但 **A/B/C 的呼叫仍註解掉**，還在 bring-up。
-Script B 的 soak 迴圈每輪印 `bgctl list` + `jobs` + `systemctl is-active mlucas-amm`，並 `pause 60`
-（V1.0.10 之前完全沒有 pause）。V1.1.8 起 AMD CPU 壓力（`mlucas-avx2`）由 `systemd-run` 掛成
+100G PRBS（`port_prbs_monitor.sh`）已隨包交付、可手動執行，但 **V1.1.9 起 A/B/C 裡註解掉的呼叫已整段刪除**，
+要接回去得重寫（`bmc_monitor_ddr.sh` 在 Script C 的註解區塊同時移除）。
+V1.1.9 新增 **SerDes DSC 擷取**：`bcm_dsc_scan.sh`（DUT 端，`phydiag <port> dsc` 掃全機 ~445 port × 2 unit，
+約 10 分鐘）由 Script A 與 Script C 各跑一次夾住 soak，`bcm_dsc_parse.sh`（Host 端）把 raw log 轉成
+`_lane.csv` / `_pm.csv`。**由 `config.ttl` 的 `EN_TX_FIR` 控制，預設 0（關）** —— 開了整輪測試多 ~20 分鐘。
+Script B 的 soak 迴圈每輪印 `bgctl list` + `jobs` + `systemctl is-active mlucas-amm`，並 `sendln "sleep 60"`
+（V1.0.10 之前完全沒有間隔；V1.2.0 起 A/B/C 的等待一律改成 DUT 端 `sleep` 而非 macro 端 `pause`）。V1.1.8 起 AMD CPU 壓力（`mlucas-avx2`）由 `systemd-run` 掛成
 `mlucas-amm` transient unit（`Restart=always`），不再是 shell 的 `&` 背景 job —— 掉線也不會停，
 Script C 用 `systemctl stop mlucas-amm` 收掉並把 log 複製到隨身碟。
 V1.1.0 新增全機 SerDes BER 掃描（`blanton_ber.sh`，**Script C 已接**，依 `SWB_UNIT` 分支）、
@@ -150,6 +154,22 @@ sleep 30                                      # 至少等一個 interval 再 rep
 #   -u 0 / -u 1 單邊；-c 1e-9 換門檻；-F 只列失敗；-f <log> 離線重解
 #   ⚠️ 不能跟 blanton_traffic_linespeed / blanton_tr518 同時跑（都會接管同一批 port）

+# ── SerDes DSC 擷取（TX_FIR / RXFFE / DFE / EYE / SNR）──
+./Blanton_Script/bcm_dsc_scan.sh                        # unit 0+1 全掃，約 10 分鐘
+./Blanton_Script/bcm_dsc_scan.sh -u 0                   # 只掃一個 unit（時間減半）
+./Blanton_Script/bcm_dsc_scan.sh -f my.log -F           # 自訂檔名 + 覆蓋
+./Blanton_Script/bcm_dsc_scan.sh -n                     # dry-run，只列要掃的 port
+#   log: ~/Blanton_Script/log/，掃完自動 cp 到 /host/hw-eval/jobs（-C 可關）
+#   檔名沒帶 %u 時會自動插 _u0 / _u1，所以兩個 unit 不會互相覆蓋
+#   結尾固定印 "### DSC_SCAN_DONE rc=<n>"；rc=0 才是全部 port 都拿到完整 dump
+#   ⚠️ 由 TTL 的 EN_TX_FIR 控制，預設 0（關）—— A 與 C 各掃一次，開了整輪多 ~20 分鐘
+
+# ── DSC raw log → CSV（離線解，Host 或 DUT 都可）──────
+sh ~/Blanton_Script/bcm_dsc_parse.sh -i blanton_dsc_ScriptA_u0.log -o u0
+#   產出 u0_lane.csv（每 lane 一列）+ u0_pm.csv（每 pm_id 一列）
+#   純 sh + awk（mawk 相容），欄位靠括號群組順序抓，SDK 改排版不會壞；
+#   群組數 != 9 的列標成 UNPARSED 印到 stderr，不會安靜解錯
+
 # ── TR518 負載 + 量功耗（TTL 尚未接）─────────────────
 ./Blanton_Script/blanton_tr518.sh start       # 兩 unit，跑完 settle 120s
 ./Blanton_Script/TH6_SWB0_power_readback.sh   # 19 條軌 V×I + TOTAL POWER
@@ -304,9 +324,17 @@ Tera Term 連 COM port (115200-8-N-1)
  `Failed to execute the diagnostic command` 都照樣回 0），所以 `blanton_traffic_linespeed.sh`
  是**比對輸出**而非看 exit code。另外 `bcmcmd` 一律要 `</dev/null` ——
  否則它會吃掉 while 迴圈的 stdin，**只有第一個 VLAN 被設定**（V0.3.1 修過的 bug，很難看出來）。
+  **2026-09-07 `bcm_dsc_scan.sh` 又踩了同一個坑**：port 清單走 stdin，第一次 `bcmcmd` 就把剩下的吃光，
+  445 個 port 只掃了 1 個，而且 marker 與 dump 數量一起變少 → 比對通過、exit 0、log 看起來正常。
+  修法是迴圈改讀 fd 3（`done 3< "$PORTFILE"`）+ `bcmcmd ... < /dev/null`，並加一道
+  「實際迭代筆數 == 清單筆數」的檢查。**任何 `while ... done < file` 裡呼叫 `bcmcmd` 都要當它會讀 stdin。**
 - ⚠️ **`stress_hhmd.py` / `stress_pcie.py` 已於 2026-08-17 由 KC 移除**（Status 表 ScriptB #5/#7）。
  Script B 現在是 **8 個背景 job**（1 mlucas + 5 mem + ssd + usb），不是 10 個。
  I2C／PCIe 的持續讀取壓力目前沒有替代品。
+- ⚠️ **`pause` 是停 macro，`sleep` 是停 DUT**（V1.2.0 起 A/B/C 一律用後者）：`pause N` 期間 macro 不理會
+  DUT，shell 是閒著的，等於用猜的估上一個指令跑多久；`sendln "sleep N"` + `wait prompt_sonic_root`
+  把等待放到 DUT 上，prompt 回來才繼續，兩邊不會走散，而且這一段會帶時戳進 log。
+  **Script 4 / Script 5 尚未轉換，仍在用 `pause`**；B/C 開頭那個 `pause 1` 也保留（登入前沒有 prompt 可等）
 - ⚠️ **soak 迴圈沒有 `pause`**：取樣間隔不是 Status 表寫的 10 分鐘，而是取決於指令執行時間。
  （`-u 0` 已於 `491e807` 移除，A/B/C 現在都跑兩個 switch unit。）
 - 🔒 **`.sh` / `.conf` 一定要 LF**。CRLF 的 shell script 在 SONiC 上直接掛（`$'\r': command not found`）；
@@ -0,0 +1,76 @@
+# v1.2.0 — SerDes DSC capture, and the macro now waits on the DUT
+
+## ✨ New features
+
+**Full-machine SerDes DSC capture, before and after the soak**
+* `bcm_dsc_scan.sh` runs `phydiag <port> dsc` through the Broadcom diag shell across the whole port list — one 100G port plus the 200G ranges, about 445 per unit, on both units — and writes the raw log under `Blanton_Script/log/`, then copies it to `/host/hw-eval/jobs/`.
+* Script A takes a baseline and Script C takes a closing dump, so the pair brackets the stress run and the two are directly comparable.
+* `-u 0` scans one unit, `-f <name>` names the log (`%u` → `u0`/`u1`, `%t` → timestamp), `-F` overwrites, `-n` dry runs, `-C` skips the copy. A name without `%u` gets `_u0` / `_u1` inserted automatically, so unit 1 can never overwrite unit 0.
+* Every run ends with `### DSC_SCAN_DONE rc=<n>`. `rc=0` means every port returned a complete dump.
+* `phydiag ... dsc` is read-only — it does not change any SerDes setting.
+
+**`bcm_dsc_parse.sh` turns a raw DSC log into two CSVs**
+* `<prefix>_lane.csv` — one row per lane: TXEQ, RXFFE, DFE, EYE, SNR and the rest.
+* `<prefix>_pm.csv` — one row per `pm_id`: temperature, PLL, lane count, SNR/EYE statistics.
+* POSIX `sh` + `awk`, no Python, so it runs on the DUT as happily as on a laptop. Lane rows are read by the order of their bracket groups rather than by fixed column positions, so the SDK re-spacing its output does not break parsing; a row that does not yield 9 groups is reported as `UNPARSED` on stderr instead of being parsed wrongly.
+
+**`EN_TX_FIR` in `config.ttl` — the DSC scan is off by default**
+* A full scan is about 10 minutes and both Script A and Script C do one, so the shipped default (`0`) keeps ~20 minutes out of a routine run. Set it to `1` when the SerDes data is what you are after.
+
+**The macro now waits on the DUT instead of on itself**
+* Every `pause N` in Scripts A, B and C became `sendln "sleep N"` followed by `wait prompt_sonic_root`.
+* `pause` stopped the macro for N seconds without touching the DUT — the shell sat idle and the macro was guessing how long the previous command would take. On a loaded DUT the guess ran short and the next command went out before the previous one had finished, putting the whole run a beat ahead of the switch. Now the wait happens on the DUT and the macro resumes when the prompt actually comes back.
+* It also means the wait appears in the console log with a timestamp, so a round that ran long is visible afterwards.
+* Timings changed with it: the management-ping sample in Script A is 15 s (was 30), the settle after each traffic `clear` is 5 s (was 15). The traffic run itself stays 15 s and Script B's monitor loop stays 60 s.
+
+## 🐛 Bug fixes
+
+**The DSC scan only ever scanned one port — and reported success**
+* The scan loop read its port list on stdin, and `bcmcmd` reads stdin too, so the first call swallowed the rest of the file and the loop ended after a single port.
+* Nothing looked wrong. The log held one port marker and one dsc block, the marker-to-dump comparison passed because both numbers shrank together, the exit code was 0, and a 445-port scan simply finished in seconds.
+* The loop now reads on file descriptor 3 and `bcmcmd` is given `< /dev/null`, and there is a new check that the number of iterations matches the number of ports in the list — a check that cannot be fooled by the loop ending early.
+
+**Dead call sites removed from Scripts A, B and C**
+* The commented-out 100G PRBS calls, a duplicated commented 100G port-status block in Script A, and the stale `bmc_monitor_ddr.sh` block in Script C have been deleted. They had been dead since bring-up.
+* `port_prbs_monitor.sh` still ships and still runs by hand — but re-enabling it means writing the calls again, not un-commenting them.
+
+## 🔧 Changes
+
+* **Script C no longer prints the BMC poll log or the mlucas log to the console.** Both files are still copied to `/host/hw-eval/jobs/` and out to the USB stick with everything else; only the master log got shorter.
+
+## 📦 Downloads
+
+| File | Contents |
+|---|---|
+| `Script_ABC_Blanton_V1.2.0.zip` | The full Tera Term working directory, including `Blanton_Script/` to copy onto the DUT |
+
+**After copying to the DUT:**
+
+```bash
+chmod +x ~/Blanton_Script/*.sh      # bcm_dsc_scan.sh is invoked as ./Blanton_Script/... and needs it
+grep -rlU $'\r' ~/Blanton_Script    # expect no output
+ls ~/hammer/tools/amd/mlucas-avx2   # must already be there
+```
+
+## ⚠️ Before you run
+
+* **Replace `config.ttl` along with the macros.** `EN_TX_FIR` is new, and Tera Term aborts on an undefined variable rather than treating it as 0.
+* **`bcm_dsc_scan.sh` needs the execute bit.** Script A and Script C invoke it as `./Blanton_Script/bcm_dsc_scan.sh`. Without `chmod +x` it fails with `Permission denied`, the macro walks straight past it, and Script C's four `cp` lines then each report a missing file.
+* **The DSC scan shares the ports with `blanton_ber.sh`, `blanton_traffic_linespeed` and `blanton_tr518.sh`** — do not run it alongside any of them.
+* **Script 4 and Script 5 still use `pause`.** Only A, B and C were converted.
+* **`--runtime` is the job's overall limit, not a per-pass one.** `--passes` does not extend it; for a 24 hour soak set `RUNTIME` to `86400`.
+* **Script 4 has no teardown**: finish it with `blanton_tr518.sh stop` **and** `systemctl stop mlucas-amm`.
+* **Script 5 (reboot cycle) is still unverified on hardware**, has no exit condition, and its `wait "Booting in blind mode"` has no `timeout` guard.
+* **`blanton_multiphase_margin.sh save` is permanent**, and must not be mixed with `margin.sh`.
+* **`READ_VIN` and `READ_IIN` are still not in the ADPM12200 coefficient table.**
+* **The BMC USB service log only exists on the USB stick.**
+* **`FAN_SPEED` is 100.**
+* **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.
+
+## 🔗 Links
+
+* [ARCHITECTURE.md](https://etgit.et-wen.com/etwen/Blanton_TTL_Script/src/branch/main/ARCHITECTURE.md) — test flow, data models, constraints
+* [CLAUDE.md](https://etgit.et-wen.com/etwen/Blanton_TTL_Script/src/branch/main/CLAUDE.md) — commands and the bench gotchas
+* [Blanton_Test_Flow.drawio](https://etgit.et-wen.com/etwen/Blanton_TTL_Script/src/branch/main/docs/Blanton_Test_Flow.drawio) — the scripts side by side
+
+**Full changelog:** [V1.1.8...V1.2.0](https://etgit.et-wen.com/etwen/Blanton_TTL_Script/compare/V1.1.8...V1.2.0)
@@ -1,6 +1,6 @@
 ; =============================================================================
 ; Script A for Blanton
-; Version : V1.1.9
+; Version : V1.2.0
 ; Date    : 2026-09-07
 ; Author  : ETWen
 ; =============================================================================
@@ -484,6 +484,57 @@
 ;                                                                            bmc_monitor.sh and friends in the chmod +x line after
 ;                                                                            deployment. Without it both scans fail with Permission
 ;                                                                            denied and the macro walks straight past it
+;   V1.2.0  2026-09-07
+;                       Blanton_Script/bcm_dsc_scan.sh                  v1.3.0 bcmcmd was eating the port list
+;                                                                         The scan loop read the port file on stdin, and bcmcmd
+;                                                                         reads stdin too, so the first call swallowed the rest of
+;                                                                         the file and the loop ended after ONE port
+;                                                                         Nothing looked wrong: the log held one PORT marker and
+;                                                                         one dsc block, markers == dumps, exit code 0. A 445 port
+;                                                                         scan finished in seconds and reported success
+;                                                                         Fixed by reading the loop on fd 3 (done 3< "$PORTFILE")
+;                                                                         and giving bcmcmd < /dev/null
+;                                                                         Added a check that the iteration count equals the port
+;                                                                         list count. The marker / dump comparison cannot catch a
+;                                                                         loop that ends early, because both numbers shrink
+;                                                                         together; the Saved: line now reports dumps out of TOTAL,
+;                                                                         not out of markers
+;                                                                         !! this is the same bcmcmd trap
+;                                                                            blanton_traffic_linespeed.sh hit at v0.3.1, where only
+;                                                                            the first VLAN was configured. Every while ... done <
+;                                                                            file loop that calls bcmcmd needs < /dev/null - assume
+;                                                                            it will read stdin unless proven otherwise
+;                       ScriptA / ScriptB / ScriptC                     Wait on the DUT with 'sleep', not on the macro with 'pause'
+;                                                                         pause N stops the macro for N seconds without touching
+;                                                                         the DUT: the shell sits idle and the macro is guessing
+;                                                                         how long the last command took. sendln "sleep N" + wait
+;                                                                         prompt_sonic_root moves the wait onto the DUT, so the
+;                                                                         macro resumes when the prompt actually comes back and the
+;                                                                         two cannot drift apart
+;                                                                         It also lands in the console log with a timestamp, so a
+;                                                                         round that ran long is visible afterwards instead of
+;                                                                         invisible
+;                                                                         Durations changed with it: ScriptA mgmt ping 30 -> 15 s;
+;                                                                         the settle after every traffic 'clear' 15 -> 5 s; the
+;                                                                         traffic run itself stays 15 s; ScriptB's monitor loop
+;                                                                         stays 60 s
+;                                                                         !! Script4 and Script5 were NOT converted and still use
+;                                                                            pause. The 'pause 1' at the top of ScriptB / ScriptC
+;                                                                            also stays - it only spaces the log header and runs
+;                                                                            before there is a prompt to wait for
+;                       config.ttl                                      Add EN_TX_FIR to gate the SerDes DSC scan
+;                                                                         EN_TX_FIR = 1 enables bcm_dsc_scan.sh in ScriptA and
+;                                                                         ScriptC, and the four cp lines that carry
+;                                                                         blanton_dsc_Script{A,C}_u{0,1}.log to /host/hw-eval/jobs.
+;                                                                         Default is 0
+;                                                                         A full scan is ~10 min and both scripts do one, so
+;                                                                         leaving it off keeps ~20 min out of a routine run. Turn
+;                                                                         it on when the SerDes data is what you are after
+;                       ScriptC                                         Stop printing the BMC poll and mlucas logs to the console
+;                                                                         cat bmc_poll.log and cat mlucas_amm_log are commented
+;                                                                         out. Both files are still copied to /host/hw-eval/jobs
+;                                                                         and out to the USB stick with everything else, so no data
+;                                                                         is lost - the master log is just shorter
 ; =============================================================================
 include "config.ttl"

@@ -649,7 +700,8 @@ include "utils/show_dmesg.ttl"
 wait prompt_sonic_root
 sendln "./Blanton_Script/mgmt_ping_monitor.sh start"
 wait prompt_sonic_root
-pause 30
+sendln "sleep 15"
+wait prompt_sonic_root
 sendln "~/Blanton_Script/mgmt_ping_monitor.sh stop"
 wait prompt_sonic_root
 sendln "cat ~/Blanton_Script/log/mgmt_ping.log"
@@ -700,12 +752,14 @@ if SWB_UNIT0 = 1 && SWB_UNIT1 = 1 then
    wait prompt_sonic_root
    sendln "blanton_traffic_linespeed clear"
    wait prompt_sonic_root
-    pause 15
+    sendln "sleep 5"
+    wait prompt_sonic_root
    sendln "blanton_traffic_linespeed show"
    wait prompt_sonic_root
    sendln "blanton_traffic_linespeed start"
    wait prompt_sonic_root
-    pause 15
+    sendln "sleep 15"
+    wait prompt_sonic_root
    sendln "blanton_traffic_linespeed stop"
    wait prompt_sonic_root
    sendln "blanton_traffic_linespeed report"
@@ -717,12 +771,14 @@ elseif SWB_UNIT0 = 1 && SWB_UNIT1 = 0 then
    wait prompt_sonic_root
    sendln "blanton_traffic_linespeed clear -u 0"
    wait prompt_sonic_root
-    pause 15
+    sendln "sleep 5"
+    wait prompt_sonic_root
    sendln "blanton_traffic_linespeed show -u 0"
    wait prompt_sonic_root
    sendln "blanton_traffic_linespeed start -u 0"
    wait prompt_sonic_root
-    pause 15
+    sendln "sleep 15"
+    wait prompt_sonic_root
    sendln "blanton_traffic_linespeed stop -u 0"
    wait prompt_sonic_root
    sendln "blanton_traffic_linespeed report -u 0"
@@ -734,12 +790,14 @@ elseif SWB_UNIT0 = 0 && SWB_UNIT1 = 1 then
    wait prompt_sonic_root
    sendln "blanton_traffic_linespeed clear -u 1"
    wait prompt_sonic_root
-    pause 15
+    sendln "sleep 5"
+    wait prompt_sonic_root
    sendln "blanton_traffic_linespeed show -u 1"
    wait prompt_sonic_root
    sendln "blanton_traffic_linespeed start -u 1"
    wait prompt_sonic_root
-    pause 15
+    sendln "sleep 15"
+    wait prompt_sonic_root
    sendln "blanton_traffic_linespeed stop -u 1"
    wait prompt_sonic_root
    sendln "blanton_traffic_linespeed report -u 1"
@@ -747,9 +805,11 @@ else

 endif

-; ========== Collect bcm dsc data ==========
-wait prompt_sonic_root
-sendln "./Blanton_Script/bcm_dsc_scan.sh -f blanton_dsc_ScriptA.log -F"
+if EN_TX_FIR = 1 then
+    ; ========== Collect bcm dsc data ==========
+    wait prompt_sonic_root
+    sendln "./Blanton_Script/bcm_dsc_scan.sh -f blanton_dsc_ScriptA.log -F"
+endif

 ; ========== Show Power on uptime ==========
 wait prompt_sonic_root
@@ -109,7 +109,8 @@ timeout = 0
 wait prompt_sonic_root
 sendln "./Blanton_Script/mgmt_ping_monitor.sh start"
 wait prompt_sonic_root
-pause 3
+sendln "sleep 3"
+wait prompt_sonic_root
 sendln "./Blanton_Script/mgmt_ping_monitor.sh status"

 ; ========== NFC Test ==========
@@ -139,7 +140,8 @@ if SWB_UNIT0 = 1 && SWB_UNIT1 = 1 then
    wait prompt_sonic_root
    sendln "blanton_traffic_linespeed clear"
    wait prompt_sonic_root
-    pause 15
+    sendln "sleep 5"
+    wait prompt_sonic_root
    sendln "blanton_traffic_linespeed show"
    wait prompt_sonic_root
    sendln "blanton_traffic_linespeed start"
@@ -151,7 +153,8 @@ elseif SWB_UNIT0 = 1 && SWB_UNIT1 = 0 then
    wait prompt_sonic_root
    sendln "blanton_traffic_linespeed clear -u 0"
    wait prompt_sonic_root
-    pause 15
+    sendln "sleep 5"
+    wait prompt_sonic_root
    sendln "blanton_traffic_linespeed show -u 0"
    wait prompt_sonic_root
    sendln "blanton_traffic_linespeed start -u 0"
@@ -163,7 +166,8 @@ elseif SWB_UNIT0 = 0 && SWB_UNIT1 = 1 then
    wait prompt_sonic_root
    sendln "blanton_traffic_linespeed clear -u 1"
    wait prompt_sonic_root
-    pause 15
+    sendln "sleep 5"
+    wait prompt_sonic_root
    sendln "blanton_traffic_linespeed show -u 1"
    wait prompt_sonic_root
    sendln "blanton_traffic_linespeed start -u 1"
@@ -173,7 +177,7 @@ endif



-; ========== Monitor loop: platform data + background jobs (pause 60s per round) ==========
+; ========== Monitor loop: platform data + background jobs (sleep 60s per round) ==========
 while 1
    include "utils/setup_pmon.ttl"
    wait prompt_sonic_root
@@ -182,5 +186,6 @@ while 1
    sendln "jobs"
    wait prompt_sonic_root
    sendln "systemctl is-active mlucas-amm"
-    pause 60
+    wait prompt_sonic_root
+    sendln "sleep 60"
 endwhile
@@ -53,8 +53,8 @@ sendln "/usr/sbin/ras-mc-ctl --summary"
 ; ========== BMC Monitor TAKE DATA ==========
 wait prompt_sonic_root
 sendln "./Blanton_Script/bmc_monitor.sh stop"
-wait prompt_sonic_root
-sendln "cat ./Blanton_Script/log/bmc_poll.log"
+; wait prompt_sonic_root
+; sendln "cat ./Blanton_Script/log/bmc_poll.log"

 ; ========== BMC USB Test result ==========
 wait prompt_sonic_root
@@ -64,8 +64,8 @@ sendln "journalctl -u qfx5252-bmc-usb-net-test.service --no-pager -o short-iso >


 ; ========== CHECK Stress results ==========
-wait prompt_sonic_root
-sendln "cat ~/hammer/tools/amd/mlucas_amm_log"
+; wait prompt_sonic_root
+; sendln "cat ~/hammer/tools/amd/mlucas_amm_log"
 wait prompt_sonic_root
 sendln "cat /host/hw-eval/jobs/qfx5252-stress-ssd.log"
 wait prompt_sonic_root
@@ -150,10 +150,11 @@ else

 endif

-; ========== Collect bcm dsc data ==========
-wait prompt_sonic_root
-sendln "./Blanton_Script/bcm_dsc_scan.sh -f blanton_dsc_ScriptC.log -F"
-
+if EN_TX_FIR = 1 then
+    ; ========== Collect bcm dsc data ==========
+    wait prompt_sonic_root
+    sendln "./Blanton_Script/bcm_dsc_scan.sh -f blanton_dsc_ScriptC.log -F"
+endif

 ; ========== NVME Err Info ==========
 wait prompt_sonic_root
@@ -199,14 +200,17 @@ wait prompt_sonic_root
 sendln "cp ./Blanton_Script/log/mgmt_ping.log /host/hw-eval/jobs/"
 wait prompt_sonic_root
 sendln "cp ./Blanton_Script/log/nfc_poll.log /host/hw-eval/jobs/"
-wait prompt_sonic_root
-sendln "cp ./Blanton_Script/log/blanton_dsc_ScriptA_u0.log /host/hw-eval/jobs/"
-wait prompt_sonic_root
-sendln "cp ./Blanton_Script/log/blanton_dsc_ScriptA_u1.log /host/hw-eval/jobs/"
-wait prompt_sonic_root
-sendln "cp ./Blanton_Script/log/blanton_dsc_ScriptC_u0.log /host/hw-eval/jobs/"
-wait prompt_sonic_root
-sendln "cp ./Blanton_Script/log/blanton_dsc_ScriptC_u1.log /host/hw-eval/jobs/"
+
+if EN_TX_FIR = 1 then
+    wait prompt_sonic_root
+    sendln "cp ./Blanton_Script/log/blanton_dsc_ScriptA_u0.log /host/hw-eval/jobs/"
+    wait prompt_sonic_root
+    sendln "cp ./Blanton_Script/log/blanton_dsc_ScriptA_u1.log /host/hw-eval/jobs/"
+    wait prompt_sonic_root
+    sendln "cp ./Blanton_Script/log/blanton_dsc_ScriptC_u0.log /host/hw-eval/jobs/"
+    wait prompt_sonic_root
+    sendln "cp ./Blanton_Script/log/blanton_dsc_ScriptC_u1.log /host/hw-eval/jobs/"
+endif

 wait prompt_sonic_root
 getdate ts_date "%Y%m%d"
@@ -12,6 +12,9 @@
 #                        避免灌爆 Tera Term logopen 的 log
 # V1.2.0     20260906    新增 -f 自訂 log 檔名(支援 %u / %t 佔位符)與
 #                        -F 強制覆蓋;預設不覆蓋既有檔案,自動加序號
+# V1.3.0     20260907    修正 bcmcmd 讀取 stdin 導致掃描迴圈在第一筆之後
+#                        提前結束的問題(迴圈改用 fd 3,bcmcmd 導向
+#                        /dev/null);新增實際迭代筆數與清單筆數的檢查
 #
 # Description:
 #   在 Blanton SONiC DUT 上批次執行 Broadcom diag shell 的
@@ -278,16 +281,18 @@ for U in $UNITS; do
    : > "$LOG" || { echo "ERROR: cannot write $LOG" >&2; exit 2; }
    LOGS="$LOGS $LOG"

-    printf '### SCAN_BEGIN unit=%s time=%s total=%s script=bcm_dsc_scan_V1.1.0\n' \
+    printf '### SCAN_BEGIN unit=%s time=%s total=%s script=bcm_dsc_scan_V1.3.0\n' \
        "$U" "$(date '+%Y-%m-%d %H:%M:%S')" "$TOTAL" >> "$LOG"

    echo "[unit $U] scanning $TOTAL ports -> $LOG" >&2

    SEQ=0
-    while IFS=, read -r P SPD; do
+    while IFS=, read -r P SPD <&3; do
        SEQ=$((SEQ + 1))
        printf '### PORT unit=%s port=%s speed=%s seq=%s/%s\n' "$U" "$P" "$SPD" "$SEQ" "$TOTAL" >> "$LOG"
-        bcmcmd -n "$U" -c "dsh -c 'phydiag $P dsc'" >> "$LOG" 2>&1 || RC=1
+        # bcmcmd 會讀取 stdin,若不導成 /dev/null 會把 PORTFILE 剩餘內容吸走,
+        # 導致迴圈在第一筆之後就讀到 EOF 而提前結束。
+        bcmcmd -n "$U" -c "dsh -c 'phydiag $P dsc'" >> "$LOG" 2>&1 < /dev/null || RC=1

        if [ "$TTY" -eq 1 ]; then
            printf '\r[unit %s] %s/%s  port=%-5s' "$U" "$SEQ" "$TOTAL" "$P" >&2
@@ -296,19 +301,26 @@ for U in $UNITS; do
        fi

        sleep "$DELAY"
-    done < "$PORTFILE"
+    done 3< "$PORTFILE"

    [ "$TTY" -eq 1 ] && printf '\n' >&2
    printf '### SCAN_END unit=%s time=%s\n' "$U" "$(date '+%Y-%m-%d %H:%M:%S')" >> "$LOG"

-    # 概略檢查:每筆 PORT marker 應對應一個 dsc 區塊
+    # 檢查 1:實際迭代筆數是否等於 port 清單筆數。
+    # 迴圈若因 stdin 被子程序吸走而提前結束,只靠下面的 marker/dump 比對抓不到。
+    if [ "$SEQ" -ne "$TOTAL" ]; then
+        echo "ERROR: unit $U  只跑了 $SEQ/$TOTAL 筆,迴圈提前結束" >&2
+        RC=1
+    fi
+
+    # 檢查 2:每筆 PORT marker 應對應一個 dsc 區塊
    MARK=$(grep -c '^### PORT ' "$LOG" || true)
    DUMP=$(grep -c 'SERDES DISPLAY DIAG DATA END' "$LOG" || true)
    if [ "$MARK" -ne "$DUMP" ]; then
        echo "WARN: unit $U  markers=$MARK  dsc_blocks=$DUMP  (有 port 未取得完整 dump)" >&2
        RC=1
    fi
-    echo "Saved: $LOG  (${DUMP}/${MARK} dumps)" >&2
+    echo "Saved: $LOG  (${DUMP}/${TOTAL} dumps)" >&2
 done

 # ----------------------------------------------------------------------------
@@ -5,6 +5,8 @@ project_name = "Blanton"
 strTestcase="ENV"      ;ENV,EMC,Margin...etc 

 EN_Margin         = 0  ; 1: Enable Margin Test, 0: Disable Margin Test
+EN_TX_FIR         = 0  ; 1: Enable bcm_dsc_scan.sh collect port TX_FIR, 0: Disable (saves ~20 min: ScriptA and ScriptC each scan for ~10 min)
+
 EN_log            = 1  ; 1: Enable log, 0: Disable log
 EN_timestamp      = 1  ; 1: Enable timestamp in log, 0: Disable timestamp in log