Marcus Kida 078d3fa665 Add CHANGELOG.md tracking changes in this fork

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

2026-07-06 17:47:29 +02:00

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

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).

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.

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.

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.