micheleandClaude Sonnet 5
3a58d33aad
Extend the FM-only ANTCAP antenna-varactor override to DAB, mirroring the existing mechanism end to end (driver, tuner, service, EEPROM storage, HTTP API). Live sweep on real hardware found no ANTCAP value beating auto-tune on the ensembles tested, so DAB stays on auto-tune by default. Also fix BT1035 boot: the module's real boot banner doesn't appear until ~18-24s after RESET# releases, not the 3.5s previously waited; add a 2-attempt retry and a baud-rate probe fallback for diagnostics. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
82 lines
2.4 KiB
TeX
82 lines
2.4 KiB
TeX
% ============================================================
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% DigiRadio — Technical Manual (main file)
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%
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% Compile with LuaLaTeX or XeLaTeX for the real Optima font
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% (a system font on macOS):
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% latexmk -lualatex manual.tex
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% pdfLaTeX also works and falls back to Linux Biolinum.
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% ============================================================
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\documentclass[12pt,a4paper,oneside]{scrreprt}
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\usepackage{digiradio-manual}
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\usepackage{tikz}
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\usetikzlibrary{positioning, arrows.meta, fit, backgrounds}
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\begin{document}
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% ---------------- Cover ----------------
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\begin{titlepage}
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\thispagestyle{empty}
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\vspace*{3.5cm}
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{\color{drPetrol}\fontsize{48}{52}\selectfont\bfseries DigiRadio\par}
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\vspace{3mm}
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{\color{drAmber}\rule{\linewidth}{2.5pt}}
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\vspace{6mm}
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{\color{drInk}\LARGE Open-Source Hi-Fi DAB+/FM Receiver\par}
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\vspace{3mm}
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{\color{drGray}\Large Technical Manual\par}
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\vfill
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{\color{drInk}\large Michele Bigi\par}
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\vspace{2mm}
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{\color{drGray}Firmware 0.9.0 \quad\textbullet\quad 2026\par}
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\vspace{2mm}
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{\color{drGray}Hardware: CERN-OHL-S v2 \quad\textbullet\quad Firmware: Apache-2.0\par}
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\vspace{2mm}
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{\color{drGray}\small \url{https://github.com/manvalan/DigiRadio}\par}
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\end{titlepage}
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% ---------------- Contents ----------------
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\pagestyle{plain}
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{\color{drPetrol}\tableofcontents}
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\clearpage
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% ---------------- Chapters ----------------
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\include{ch-intro}
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\include{ch-hardware}
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\include{ch-sigmastudio}
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\include{ch-firmware}
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\include{ch-si4684}
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\include{ch-adau1701}
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\include{ch-bt1035}
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\include{ch-api}
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\include{ch-classes}
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\include{ch-build}
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\include{ch-licensing}
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% ---------------- Back cover (acknowledgements) ----------------
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\cleardoublepage
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\thispagestyle{empty}
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\vspace*{\fill}
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\begin{center}
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{\color{drPetrol}\Large\bfseries Acknowledgements\par}
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\vspace{1.2cm}
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\begin{minipage}{0.82\textwidth}
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\centering
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{\color{drInk}
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\textbf{PCBWay} sponsored part of the prototype PCB fabrication and assembly
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costs for DigiRadio. Their contribution did not cover the full production
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budget, but it materially reduced the out-of-pocket expense of the first
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manufacturing run. We thank the PCBWay team for believing in this open hardware
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project and for helping bring the first boards to life.\par}
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\vspace{1.2cm}
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\includegraphics[width=0.32\textwidth]{figures/pcbway-logo.png}%
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\vspace{0.8cm}
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{\color{drGray}\small\url{https://www.pcbway.com}\par}
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\end{minipage}
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\end{center}
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\vspace*{\fill}
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\end{document}
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