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Record measured Z27AG CAN: 500 kbps, ungatewayed OBD port

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Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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mikkeli
2026-10-09 16:38:45 +09:00
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commit ccd5b54450
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README.md
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@@ -34,7 +34,7 @@ Planned repositories and the reasoning behind the split are described in
|---|---|
| NVIDIA Jetson Orin Nano Super (`mikkeli-orin-nano`) | Car unit: main compute, JetPack r36.4 / Ubuntu 22.04 |
| NVIDIA Jetson Orin Nano Super (`mikkeli-orin-nano-2`) | Development unit: builds, CI, bench (see [REPOS](docs/REPOS.md)) |
| PEAK PCAN-USB | Car CAN bus access (`can_pcan`, 500 kbps) |
| PEAK PCAN-USB | Car CAN bus access (`can_pcan`, 500 kbps measured at the OBD port; listen-only until `obd-poller`) |
| Onboard MTTCan | Second CAN interface (`can_onboard`) |
| Waveshare SIM7600G-H-M.2 | LTE Cat 4 (povo, fallback uplink below WiFi/Ethernet) + GNSS |
docs/ROADMAP.md
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---
type: plan
status: active
updated: 2026-10-08
updated: 2026-10-09
---
# Roadmap
@@ -14,6 +14,8 @@ Getting the Jetson to see the hardware at all.
- [x] PCAN-USB working as SocketCAN (out-of-tree `pcan.ko`, netdev build)
- [x] Stable CAN names by udev: `can_pcan`, `can_onboard` — `canN` order raced at boot
- [x] Z27AG OBD-port CAN measured: 500 kbps, not gatewayed, 27 periodic IDs at
~890 frames/s; `can_pcan` comes up at 500k listen-only on boot and hot-plug
- [x] SIM7600G-H-M.2 specified and documented
- [x] SIM7600 LTE data path: QMI (self-built `qmi_wwan`), povo, metered, ranked
below Ethernet/WiFi; failover tested, Tailscale stays reachable over LTE