Torlando b7ab97d624 test: add host regression for MapTileStoreSD mount-path overflow
A 31-character pack ID makes mounted tile paths
(/sd/pyxis-map/packs/<id>/tiles/<z>/<x>/<y>.png) exceed the 68-byte mount
buffer once either x or y is two digits, so beginRead returns
INVALID_ARGUMENT and the UI shows 'Tile I/O error' at z4+ even though the
file exists and is intact.

Compiles the unmodified MapTilePack/MapTileStoreSD/SDAccess/codec/manifest
sources against small Arduino/FreeRTOS host shims. The core section (no
card needed) drives the real store with a model of the mount-prefix
arithmetic and asserts the 31-char-ID boundary loads at z4/z5; an optional
end-to-end section runs the real MapTilePack over a bound card root when
/sd is writable.

Fails on the current 64-byte PATH_CAPACITY: red by design.
2026-08-28 22:44:27 +00:00
2026-02-07 11:49:21 -05:00

Pyxis logo

Pyxis

An LXMF and LXST client firmware for T-Deck, built on a highly modified fork of microReticulum

Very much WIP, don't expect stability :)

Features

Reticulum transport over:

  • RNode-compatible LoRa
  • AutoInterface (local wifi)
  • TCP Client
  • BLE Interface (barely working if at all)

Other features:

  • GPS-synced time
  • One really annoying beep when you get a new message (user toggle)
  • View the announce stream
  • Choose a propagation node (and sync with it) (fixed in v0.2.1)
  • Set auto announce timer
  • Light up keyboard (user toggle)
  • Will crash in about 5 minutes of normal use (sorry) I had 5d uptime on v0.2.0 with BLE disabled
  • Make LXST voice calls (codec2 only, quality sounds horrible coming out the other end in Columba, needs work)

Flashing

The easiest way to get Pyxis running is the web flasher, which downloads release firmware from this repository's releases and verifies each image's SHA-256 digest against the release metadata.

For esptool (or any other tool that writes raw flash), each release also publishes a merged binary (pyxis-<tag>-merged.bin) that contains the bootloader, partition table, OTA selector, and application at their fixed offsets. Provision a T-Deck Plus (8 MB flash) with:

esptool.py --chip esp32s3 erase_flash
esptool.py --chip esp32s3 write_flash 0x0 pyxis-<tag>-merged.bin

Merged binaries are for first install / provisioning. Flashing one overwrites every flash region, including NVS (settings, identity) and the LittleFS partition (messages, paths, maps). To update an existing device without losing data, flash firmware.bin to 0x10000 only, or use the Columba-compatible pyxis-<tag>.pyxis.zip update package.

Why "Pyxis"

Pyxis, latin for "compass," is a constellation in the southern sky depicting a mariner's compass. Small but essential, the compass ensures every message finds its destination - even when the path is uncertain.

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