diff --git a/src/Script_ABC_Blanton/6_Blanton_Script_BER_Cycle.ttl b/src/Script_ABC_Blanton/6_Blanton_Script_BER_Cycle.ttl
new file mode 100644
index 0000000..2ea014d
--- /dev/null
+++ b/src/Script_ABC_Blanton/6_Blanton_Script_BER_Cycle.ttl
@@ -0,0 +1,315 @@
+;================================================================
+; Prompt Definitions
+;================================================================
+prompt_login = "sonic login:"
+prompt_sonic = "admin@sonic:~$"
+prompt_sonic_root = "root@sonic:~#"
+prompt_diag = "root@(none):~#"
+
+; ============================================================
+; [1] Config
+; ============================================================
+SWB_UNIT0         = 1   ; 1 = this DUT has switch unit 0, wait for it ; 0 = skip
+SWB_UNIT1         = 1   ; 1 = this DUT has switch unit 1, wait for it ; 0 = skip
+
+bb_post_hotkey = 'Post Code>>:0226'      ; 看到此 POST code 後開始送 ESC
+bb_esc_ack     = 'Esc is pressed'        ; BIOS 收到 ESC 的回應訊息
+bb_fp_continue = 'continue to booting'   ; Front Page：Continue 反白時的說明欄（同一 row 內的字串）
+bb_fp_bootmgr  = 'you to the Boot Manager' ; Front Page：Boot Manager 反白時的說明欄
+bb_bm_header   = 'EFI Boot Devices'      ; Boot Manager 清單標題
+bb_bm_footer   = 'ESC to exit'           ; Boot Manager 頁面最後一段文字（畫完判定）
+
+bb_key_esc     = #27
+bb_key_down    = #27'[B'
+bb_key_enter   = #13
+
+;diag_tok       = 'KINGSHARKS'            ; EFI USB Device (KINGSHARKS-ANTU04)
+;sonic_tok      = 'J983670007'            ; EFI Hard Drive (J983670007-TS2TMTE712P-VS2)
+diag_tok       = 'USB Device'            ; EFI USB Device (KINGSHARKS-ANTU04)
+sonic_tok      = 'Hard Drive'            ; EFI Hard Drive (J983670007-TS2TMTE712P-VS2)
+
+
+diag_sig       = 'ast1813b_diag'         ; EFI Shell 執行 startup.nsh 載入的 diag kernel
+sonic_sig      = 'SONiC-OS'              ; SONiC GRUB entry 名稱（請依實際 GRUB 畫面確認）
+
+gettime str_starttime "%Y%m%d-%H%M%S"
+getdir mdir
+sprintf2 filename '%s\Logs\%s_%s_%s.log' mdir "Blanton" "BER_Cycle" str_starttime
+; logopen <file> <binary> <append> <PlainText> <timestamp>
+;   binary=0    text mode, so PlainText / timestamp are honoured
+;   append=1    keep earlier cycles, do not overwrite
+;   PlainText=1 strip the ANSI colour codes SONiC emits
+logopen filename 0 1 1 1
+
+test_cycle = 0
+
+while 1
+    test_cycle = test_cycle + 1
+    flushrecv
+    logwrite ''#13#10
+    sprintf2 log_cycle_msg 'BER Diag/SONiC Cycle Test : %d'#13#10 test_cycle
+    logwrite '#####################################'#13#10
+    logwrite log_cycle_msg
+    logwrite '#####################################'#13#10
+    settitle log_cycle_msg
+    ; ============================================================
+    ; [2] Call : Script where switching is needed
+    ; ============================================================
+    ; ====== Diag Test ======
+    wait prompt_diag
+    sendln 'swutil 0:dsh -c "phydiag 1-24,40-96,112-168,184-240,256-259,270-308,310-327,342-380,382-399,414-452,454-471,486-524,526-543,558-565 prbs set p=3"'
+    wait prompt_diag
+    sendln 'swutil 0:dsh -c "phydiag 1-24,40-96,112-168,184-240,256-259,270-308,310-327,342-380,382-399,414-452,454-471,486-524,526-543,558-565 prbs get"'
+    wait prompt_diag
+    sendln 'swutil 0:dsh -c "phydiag 1-24,40-96,112-168,184-240,256-259,270-308,310-327,342-380,382-399,414-452,454-471,486-524,526-543,558-565 prbs get"'
+    wait prompt_diag
+    sendln 'swutil 0:dsh -c "phydiag 1-24,40-96,112-168,184-240,256-259,270-308,310-327,342-380,382-399,414-452,454-471,486-524,526-543,558-565 prbsstat STArt Interval=30"'
+    wait prompt_diag
+    sendln "sleep 40"
+    wait prompt_diag
+    sendln 'swutil 0:dsh -c "phydiag 1-24,40-96,112-168,184-240,256-259,270-308,310-327,342-380,382-399,414-452,454-471,486-524,526-543,558-565 prbsstat Ber"'
+    wait prompt_diag
+    sendln 'swutil 0:dsh -c "phydiag 1-24,40-96,112-168,184-240,256-259,270-308,310-327,342-380,382-399,414-452,454-471,486-524,526-543,558-565 prbsstat STOp"'
+    wait prompt_diag
+    sendln 'swutil 0:dsh -c "phydiag 1-24,40-96,112-168,184-240,256-259,270-308,310-327,342-380,382-399,414-452,454-471,486-524,526-543,558-565 prbs clear"'
+    wait prompt_diag
+    sendln 'swutil 0:dsh -c "phydiag 256-259 dsc"'
+    wait prompt_diag
+    sendln 'swutil 0:show temp'
+    wait prompt_diag
+    sendln "swutil *:extphy core_diag all"
+    wait prompt_diag
+
+    ; ---- Diag -> SONiC ----
+    sendln 'fpga_switch.sh cb 0 0x480 0xD0000'
+    bb_target_tok = sonic_tok
+    bb_sig_target = sonic_sig
+    bb_sig_other  = diag_sig
+    call bb_boot_to
+    if bb_ok = 0 then
+    sprintf2 bb_msg 'Boot to SONiC failed: %s' bb_err
+    messagebox bb_msg 'bios_boot'
+    end
+    endif
+
+    ; ========== SONiC Test ==========
+    wait prompt_login
+    sendln "admin"
+    wait "Password:"
+    sendln "YourPaSsWoRd"
+    wait prompt_sonic
+    sendln "sudo -i"
+
+    wait prompt_sonic_root
+    sendln "sleep 10"
+
+    ; ========== FAN SPEED ==========
+    wait prompt_sonic_root
+    sendln "echo 18-0020 > /sys/bus/i2c/drivers/max31790/unbind"
+    wait prompt_sonic_root
+    sendln "sleep .5"
+    wait prompt_sonic_root
+    sendln "echo 18-0020 > /sys/bus/i2c/drivers/max31790/bind"
+    wait prompt_sonic_root
+    sendln "echo 25-0020 > /sys/bus/i2c/drivers/max31790/unbind"
+    wait prompt_sonic_root
+    sendln "sleep .5"
+    wait prompt_sonic_root
+    sendln "echo 25-0020 > /sys/bus/i2c/drivers/max31790/bind"
+
+    wait prompt_sonic_root
+    sprintf2 fan_ctrl_cmd 'fan-speed-control.sh %d' 30
+    sendln fan_ctrl_cmd
+
+    wait "Set all configured fan channels to"
+    sendln "y"
+
+    ; ========== Wait DUT Init ==========
+    include "utils/wait_init.ttl"
+
+    wait prompt_sonic_root
+    sendln 'bcmcmd -n 0 -c " dsh -c ' 39 'phydiag 1-24,40-96,112-168,184-240,256-259,270-308,310-327,342-380,382-399,414-452,454-471,486-524,526-543,558-565 prbs set p=3' 39 ' "'
+    wait prompt_sonic_root
+    sendln 'bcmcmd -n 0 -c " dsh -c ' 39 'phydiag 1-24,40-96,112-168,184-240,256-259,270-308,310-327,342-380,382-399,414-452,454-471,486-524,526-543,558-565 prbs get' 39 ' "'
+    wait prompt_sonic_root
+    sendln 'bcmcmd -n 0 -c " dsh -c ' 39 'phydiag 1-24,40-96,112-168,184-240,256-259,270-308,310-327,342-380,382-399,414-452,454-471,486-524,526-543,558-565 prbs get' 39 ' "'
+    wait prompt_sonic_root
+    sendln 'bcmcmd -n 0 -c " dsh -c ' 39 'phydiag 1-24,40-96,112-168,184-240,256-259,270-308,310-327,342-380,382-399,414-452,454-471,486-524,526-543,558-565 prbsstat STArt Interval=30' 39 ' "'
+    wait prompt_sonic_root
+    sendln "sleep 40"
+    wait prompt_sonic_root
+    sendln 'bcmcmd -n 0 -c " dsh -c ' 39 'phydiag 1-24,40-96,112-168,184-240,256-259,270-308,310-327,342-380,382-399,414-452,454-471,486-524,526-543,558-565 prbsstat Ber' 39 ' "'
+    wait prompt_sonic_root
+    sendln 'bcmcmd -n 0 -c " dsh -c ' 39 'phydiag 1-24,40-96,112-168,184-240,256-259,270-308,310-327,342-380,382-399,414-452,454-471,486-524,526-543,558-565 prbsstat STOp' 39 ' "'
+    wait prompt_sonic_root
+    sendln 'bcmcmd -n 0 -c " dsh -c ' 39 'phydiag 1-24,40-96,112-168,184-240,256-259,270-308,310-327,342-380,382-399,414-452,454-471,486-524,526-543,558-565 prbs clear' 39 ' "'
+    wait prompt_sonic_root
+    sendln 'bcmcmd -n 0 -c "dsh -c ' 39 'phydiag 256-259 dsc' 39 '"'
+    wait prompt_sonic_root
+    sendln 'show plat temperature'
+
+    ; ---- SONiC -> Diag ----
+    wait prompt_sonic_root
+    sendln 'pcimem /sys/bus/pci/devices/0000:05:00.0/resource0 0x480 w 0xD0000'
+    bb_target_tok = diag_tok
+    bb_sig_target = diag_sig
+    bb_sig_other  = sonic_sig
+    call bb_boot_to
+    if bb_ok = 0 then
+    sprintf2 bb_msg 'Boot to Diag failed: %s' bb_err
+    messagebox bb_msg 'bios_boot'
+    end
+    endif
+endwhile
+
+logclose
+end
+
+; ============================================================
+; [3] Subroutine
+; ============================================================
+:bb_boot_to
+  bb_saved_to = timeout
+  call bb_run
+  timeout  = bb_saved_to
+  mtimeout = 0
+  return
+
+:bb_run
+  bb_ok  = 0
+  bb_err = ''
+  call bb_enter_bios
+  if bb_ok = 0 return
+  call bb_goto_bootmgr
+  if bb_ok = 0 return
+  call bb_find_idx
+  if bb_ok = 0 return
+  call bb_select
+  call bb_verify
+  return
+
+; ------------------------------------------------------------
+; 等 POST 0226，之後連送 ESC 直到 BIOS 回應 'Esc is pressed'
+; ------------------------------------------------------------
+:bb_enter_bios
+  bb_ok = 0
+  flushrecv                        ; 清掉 reboot 前的舊資料，避免誤比對
+  timeout  = 300
+  mtimeout = 0
+  wait bb_post_hotkey
+  if result = 0 then
+    bb_err = 'timeout waiting POST code 0226'
+    return
+  endif
+
+  timeout  = 0
+  mtimeout = 300
+  for bb_i 1 200                   ; 300 ms x 200 = 最多約 60 秒
+    send bb_key_esc
+    wait bb_esc_ack
+    if result > 0 then
+      bb_ok = 1
+      break                        ; 收到 ack 立即停送，避免多餘 ESC 把 Front Page 退掉
+    endif
+  next
+  mtimeout = 0
+  if bb_ok = 0 bb_err = 'no ESC ack from BIOS'
+  return
+
+; ------------------------------------------------------------
+; Front Page：預設反白在 Continue，按一次 Down 到 Boot Manager
+; 以右側說明欄文字確認反白位置，再按 Enter
+; ------------------------------------------------------------
+:bb_goto_bootmgr
+  bb_ok = 0
+  timeout = 30
+  wait bb_fp_continue
+  if result = 0 then
+    bb_err = 'Front Page not shown'
+    return
+  endif
+
+  mpause 500
+  send bb_key_down
+  timeout = 5
+  wait bb_fp_bootmgr
+  if result = 0 then
+    bb_err = 'cannot highlight Boot Manager'
+    return
+  endif
+
+  mpause 300
+  send bb_key_enter
+  timeout = 15
+  wait bb_bm_header
+  if result = 0 then
+    bb_err = 'Boot Manager page not shown'
+    return
+  endif
+  bb_ok = 1
+  return
+
+; ------------------------------------------------------------
+; 解析 Boot Manager 清單，計算目標 entry 的 index（0-based）
+; 每個 entry 以 'EFI '（含 UEFI）或 'SVOS' 開頭計數，命中目標字串即停止
+; ------------------------------------------------------------
+:bb_find_idx
+  bb_ok  = 0
+  bb_idx = -1
+  bb_cnt = 0
+  timeout  = 0
+  mtimeout = 3000
+  for bb_i 1 20
+    wait 'EFI ' 'SVOS' bb_target_tok
+    if result = 0 break            ; 清單畫完仍未命中
+    if result = 3 then
+      bb_idx = bb_cnt - 1          ; 目標字串前的 'EFI ' 屬於目標 entry 本身
+      break
+    endif
+    bb_cnt = bb_cnt + 1
+  next
+  mtimeout = 0
+
+  if bb_idx < 0 then
+    bb_err = 'target entry not found in Boot Manager'
+    return
+  endif
+
+  timeout = 5
+  wait bb_bm_footer                ; 等整頁畫完才開始按鍵
+  bb_ok = 1
+  return
+
+; ------------------------------------------------------------
+; 預設反白在第一個 entry，往下移 bb_idx 格後按 Enter
+; ------------------------------------------------------------
+:bb_select
+  mpause 300
+  if bb_idx > 0 then               ; TTL 的 for 1 0 會倒數執行，必須先擋掉
+    for bb_i 1 bb_idx
+      send bb_key_down
+      timeout = 3
+      wait bb_bm_footer            ; BIOS 每按一次會整頁重畫，畫完再按下一次
+      mpause 200
+    next
+  endif
+  send bb_key_enter
+  ; 之後不可再送任何按鍵：Diag 走 EFI Shell，
+  ; 任何按鍵都會被當成「跳過 / 中斷 startup.nsh」
+  return
+
+; ------------------------------------------------------------
+; 同時等目標與另一個 image 的特徵字串
+; ------------------------------------------------------------
+:bb_verify
+  bb_ok = 0
+  timeout = 300
+  wait bb_sig_target bb_sig_other
+  if result = 1 then
+    bb_ok = 1
+  elseif result = 2 then
+    bb_err = 'booted into wrong image'
+  else
+    bb_err = 'timeout waiting boot signature'
+  endif
+  return