Marcus Kida e50993b98f README differences + flashing sections; universal release script

- README: add 'What's different from OpenGD77' (incl. the new SK2 mute) and a
  dedicated 'Flashing' section (DFU steps, per-model flash.sh, donor note).
- scripts/forgejo-release.sh: build/attach a single platform or all, reuse an
  existing release, replace same-named assets, and warn if freetrxVersion.h
  doesn't match the tag.
- TOOLS.md: document the platform build argument.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

2026-07-07 08:11:43 +02:00

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Changelog

All notable changes to this fork of the OpenGD77 firmware (MD-UV380 / DM-1701).

This project is still in pre-release iteration, so changes are collected as a single running list until the first versioned release.

Unreleased

DM-1701 build support — the Docker build is now parameterized by platform; ./build-firmware.sh DM1701 produces OpenDM1701.bin (Baofeng DM-1701 / Retevis RT-84). Not officially tested yet.
Release script (scripts/forgejo-release.sh) now builds and attaches a single platform or all of them, and reuses an existing release.
README: added "What's different from OpenGD77" and a dedicated "Flashing" section.

0.1.0

First versioned release of FreeTRX (fork of OpenGD77 R20260131).

Features

Screen dimming — optional idle dimming of the backlight to a fraction of the configured brightness (Off / 100% / 50% / 30%), in Auto backlight mode. Any activity (keys, rotary, RX, TX) restores full brightness. New setting in Display Options.
Mute — one-tap audio mute:
- SK2 short-tap toggles mute on the VFO/Channel screens (except while a DMR QSO is on screen, where SK2 keeps its "set TX TG to incoming" function).
- Turning the volume knob fully down is also treated as muted.
- While muted: a bold "M" appears in the status bar (left of the battery) and the red LED flashes (0.5 s every 2 s).

Display / UI

S-meter redrawn as discrete blocks — 9 green blocks (S1–S9) plus 6 red blocks (S9+10…+60), with gaps and a proportionally-filled leading block, and a scale label row beneath (S1 S3 S5 S7 S9 / +20 +40 +60).
7-segment "LED" frequency font for the VFO and SK1-held frequency display, with faintly-lit inactive segments; digits are wider than the normal font.
Main-menu icons — a small glyph next to each top-level menu entry.
Layout spacing adjusted so the contact/TG line, the DMR talkgroup/talker and the private-call caller ID clear the new S-meter label row.

Fixes

DMR no longer hard-faults. The AMBE codec is now called through C function pointers instead of the old inline assembler (which modern GCC miscompiled), fixing the freeze-on-DMR that required a battery pull.
Fixed the DMR talkgroup/talker and private-call caller ID overlapping the S-meter labels.

Build / Tooling

Dockerized build using the Arm GNU Toolchain 14 (matching the official builds); always a clean build. ./flash.sh helper for flashing with model, language and DMR donor.
Integrated the OpenGD77 screen grabber (gd-77_screen_grabber.py) and the GD-77 loader into the repo.
TOOLS.md documents building, flashing, screenshots and language files.

Project

Renamed the project to FreeTRX (fork of OpenGD77). New README.md documenting the fork and its upstream source; original OpenGD77 README kept as README.OpenGD77.md. Added LICENSE.md reproducing the inherited OpenGD77 license (modified BSD 3-Clause + non-commercial clause; not GPL-compatible).
On-screen branding renamed to FreeTRX (splash screen + Firmware Info name).
README notes this iteration is developed/tested only on the TYT MD-UV380 and Retevis RT-3S, with a contact for testing on other supported radios.
Firmware-info credits simplified to "Marcus DK1DA" and a reference to "The original OpenGD77 authors".

Misc

Added Marcus DK1DA to the firmware-info credits ("Modified Fork by").

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