d51c9f1011
Audio chain, stage 1 (balanced input receiver + protection) validated in ngspice: - stage1_cmrr.cir: CMRR vs resistor matching -> 1% = 46dB, 0.1% = 66dB, perfect = amp-limited; justifies the laser-trimmed THAT1240 over discrete resistors. - stage1_phantom.cir: +48V phantom step -> clamped to ~16V blip, steady-state ~0.12V; the DC-block cap + clamp + series R make a miswire a non-event. Container: add kicad-symbols + kicad-footprints (for symbol placement) and skidl. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
31 lines
1.2 KiB
Docker
31 lines
1.2 KiB
Docker
# Reproducible EDA toolchain for the PM_K-1 core board.
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#
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# Why this exists: the system KiCad is 7.0 (no CLI ERC). This pins a known,
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# rebuildable environment so the design can be checked/simulated identically
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# years from now — fitting for a device meant to outlive its tools.
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#
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# KiCad 9 -> schematic capture, CLI ERC/DRC, netlist/PDF/Gerber export
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# ngspice -> SPICE simulation of the analog audio circuits
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# python3 -> scripting / BOM / skidl-style helpers
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#
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# Build/run via ../eda/run.sh (or: podman build -t pmk1-eda:9.0 .)
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FROM docker.io/library/ubuntu:24.04
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ENV DEBIAN_FRONTEND=noninteractive
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SHELL ["/bin/bash", "-o", "pipefail", "-c"]
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RUN apt-get update && apt-get install -y --no-install-recommends \
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software-properties-common ca-certificates gnupg && \
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add-apt-repository -y ppa:kicad/kicad-9.0-releases && \
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apt-get update && apt-get install -y --no-install-recommends \
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kicad \
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kicad-symbols \
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kicad-footprints \
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ngspice \
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python3 python3-pip python3-venv \
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git make && \
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apt-get clean && rm -rf /var/lib/apt/lists/* && \
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pip3 install --no-cache-dir --break-system-packages skidl
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WORKDIR /work
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CMD ["bash"]
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