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feat(sntp): 板端 SNTP 校时接入——coreSNTP 序列化器 + [sntp] 段 + 设置页（#73）
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- vendored coreSNTP v2.0.0 序列化器（MIT，仅 serializer+LICENSE，零堆），
  48 字节报文编解码在库，节奏与准入判据在本方（RFC 4330 §10 调研口径）
- App/sync/time_sntp.c 挂 timeSyncTask 的 8888 事件循环，等待切片 ≤50 ms，
  不饿任务狗与 IWDG；懒建 UDP socket，代际变化/禁用/死错误码即关闭归还
- 防伪 = OriginTimestamp 逐位等于发出时 T1（含低 16 位随机小数位）；
  mode/stratum/闰秒指示/KoD 按 RFC 拒收；DENY·RSTR 换服务器、RATE 只退避
- 主备轮换 + 失败指数退避（5 s 起、60 s 封顶）+ 首轮 1~5 分钟随机错峰；
  成功恢复 poll_min 周期（1~1440 分，出厂默认 60，默认不启用不发包）
- 钟面 = 本地时间：UTC+8 固定偏移落 sys_clock_set_unix（§1.1 时基裁定，
  第三个写入口，装置仍不存时区）；|offset|<2 s 只记日志不步进，冷启动或
  更大偏差步进并回写 SD2506，留痕 [SNTP] step 与 syslog OPER
- 首个校验通过的同步置 SYS_EVT_TIMESYNC_READY（就绪位，消费方按需 NoClear）
- [sntp] 配置段（enable/server1/server2/poll_min）属主 sntp_cfg.c，
  注册在 net_cfg_load()；UI 页 31「SNTP 设置」（密码叶）：启用开关 +
  主/备服务器 octet 编辑 + 周期(分) + 保存，复用 net_cfg_save_request 链
- 测试与门禁：test/host/sntp 新套件（报文/防伪/KoD/退避周期/阶跃域/配置
  注册表）、net_cfg 与 time_sync 套件补 fake、黄金参考 66→74 张零漂移、
  字符集 228 字、Keil 0 错 0 警（RO +5,848 B 含字体）、覆盖率基线回填
- 文档：墙钟维护说明 §16、网络配置说明 [sntp] 节、配置文件设计说明变更记录、
  产品需求 FR-TIME-3 与 8.3/9.1.2 台账、UI 补齐规划/UI补齐 31 叶口径、
  登记簿销项并登记「SNTP 校时真机判据」等台架（PC 时间源 192.168.31.161/.13）
This commit is contained in:
super_agent_bot
2026-11-04 15:27:41 +08:00
parent c1beec50e7
commit 10322208fd
73 changed files with 4695 additions and 281 deletions
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scripts/ram_baseline.tsv
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@@ -16,4 +16,4 @@ date code ro rw zi er_irom1 er_pct iram1 iram1_pct ccm ccm_pct top_rwzi
2026-10-30 246720 29836 2052 149708 276556 26.4 94336 72.0 57376 87.9 heap_4.o=57376;lv_mem_core_builtin.o=16384;lftpd.o=7884;ui_net_sink.o=6770;ui_port.o=6432;nand_ftl.o=6216;wave_ring.o=5296;sb_link.o=4376;ch395f.o=4162;console_log.o=4132
2026-11-02 247548 29836 2052 149740 277384 26.5 94368 72.0 57376 87.9 heap_4.o=57376;lv_mem_core_builtin.o=16384;lftpd.o=7884;ui_net_sink.o=6802;ui_port.o=6432;nand_ftl.o=6216;wave_ring.o=5296;sb_link.o=4376;ch395f.o=4162;console_log.o=4132
2026-11-03 249112 29836 2052 149996 278948 26.6 94624 72.2 57376 87.9 heap_4.o=57376;lv_mem_core_builtin.o=16384;lftpd.o=7884;ui_net_sink.o=6802;ui_port.o=6432;nand_ftl.o=6216;wave_ring.o=5296;sb_link.o=4376;ch395f.o=4162;console_log.o=4132
2026-11-04 249120 29836 2052 149996 278956 26.6 94624 72.2 57376 87.9 heap_4.o=57376;lv_mem_core_builtin.o=16384;lftpd.o=7884;ui_net_sink.o=6802;ui_port.o=6432;nand_ftl.o=6216;wave_ring.o=5296;sb_link.o=4376;ch395f.o=4162;console_log.o=4132
2026-11-04 254648 30152 2072 150088 284800 27.2 94736 72.3 57376 87.9 heap_4.o=57376;lv_mem_core_builtin.o=16384;lftpd.o=7884;ui_net_sink.o=6802;ui_port.o=6432;nand_ftl.o=6216;wave_ring.o=5296;sb_link.o=4376;ch395f.o=4162;console_log.o=4132
1 date code ro rw zi er_irom1 er_pct iram1 iram1_pct ccm ccm_pct top_rwzi
16 2026-10-30 246720 29836 2052 149708 276556 26.4 94336 72.0 57376 87.9 heap_4.o=57376;lv_mem_core_builtin.o=16384;lftpd.o=7884;ui_net_sink.o=6770;ui_port.o=6432;nand_ftl.o=6216;wave_ring.o=5296;sb_link.o=4376;ch395f.o=4162;console_log.o=4132
17 2026-11-02 247548 29836 2052 149740 277384 26.5 94368 72.0 57376 87.9 heap_4.o=57376;lv_mem_core_builtin.o=16384;lftpd.o=7884;ui_net_sink.o=6802;ui_port.o=6432;nand_ftl.o=6216;wave_ring.o=5296;sb_link.o=4376;ch395f.o=4162;console_log.o=4132
18 2026-11-03 249112 29836 2052 149996 278948 26.6 94624 72.2 57376 87.9 heap_4.o=57376;lv_mem_core_builtin.o=16384;lftpd.o=7884;ui_net_sink.o=6802;ui_port.o=6432;nand_ftl.o=6216;wave_ring.o=5296;sb_link.o=4376;ch395f.o=4162;console_log.o=4132
19 2026-11-04 249120 254648 29836 30152 2052 2072 149996 150088 278956 284800 26.6 27.2 94624 94736 72.2 72.3 57376 87.9 heap_4.o=57376;lv_mem_core_builtin.o=16384;lftpd.o=7884;ui_net_sink.o=6802;ui_port.o=6432;nand_ftl.o=6216;wave_ring.o=5296;sb_link.o=4376;ch395f.o=4162;console_log.o=4132