Site: the devlog, the blog's roro9stack posts in the site's style; Devlog replaces Blog in the navigation

Seven posts imported into site/content/devlog/ with their text unchanged, links between them pointing to /devlog/, and shortcodes (sign, cast, steps, asides, folded sections, diagrams, captions) restyled in the site's palette. The 17 inline SVG diagrams carried <style> blocks and style attributes the site's Content-Security-Policy refuses: their rules moved to devlog-diagrams.css, and a diagram's minimum width is a class. An Atom feed at /devlog/atom.xml. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01EhqxQ49eCju4CzKYNjZzwT
2026-10-06 20:51:33 +02:00
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+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 760 330" role="img" aria-label="The GNSS data path. The receiver on the Cap, an ATGM336H on the AT6668 chip, tracks GPS, GLONASS, Galileo, BeiDou and QZSS and sends NMEA once a second, about 450 bytes a second, over a UART at 115200 baud into GPIO 15. Commands go back on GPIO 13: PCAS12 for standby, PCAS10 to wake. The GNSS Service reads the UART on the main loop's tick every 50 milliseconds and feeds the NMEA parser, which checks checksums and handles RMC, GGA, GSA and GSV across constellations. The result is one GNSS state: the Fix, the position, UTC time and the satellites. Four things use it: the GNSS App with its Position and Sky views, the Status Bar mark, the clock, where GNSS outranks NTP, and Tracks, written as GPX to the SD card.">
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+    <rect class="gf-panel" x="16" y="100" width="180" height="130" rx="8"/>
+    <text x="30" y="124" font-size="12" font-weight="600">the receiver</text>
+    <text x="30" y="144" font-size="11">ATGM336H, AT6668</text>
+    <text x="30" y="162" font-size="11" class="gf-dim">GPS GLONASS Galileo</text>
+    <text x="30" y="178" font-size="11" class="gf-dim">BeiDou QZSS</text>
+    <text x="30" y="200" font-size="11">NMEA, 1 Hz</text>
+    <text x="30" y="216" font-size="11" class="gf-dim">about 450 B/s</text>
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+    <text x="264" y="64" font-size="12" font-weight="600">GNSS Service</text>
+    <text x="264" y="84" font-size="11" class="gf-dim">read every 50 ms tick</text>
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+    <text x="276" y="120" font-size="12" font-weight="600">NMEA parser</text>
+    <text x="276" y="140" font-size="11">RMC GGA GSA GSV</text>
+    <text x="276" y="158" font-size="11" class="gf-dim">checksums, constellations</text>
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+    <text x="276" y="220" font-size="12" font-weight="600">GNSS state</text>
+    <text x="276" y="240" font-size="11">Fix, position, UTC,</text>
+    <text x="276" y="258" font-size="11">satellites (merged)</text>
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+    <text class="f-accent" x="200" y="132" font-size="10">RX 15</text>
+    <path class="gf-line" d="M246 196 H200" marker-end="url(#gf-arrow)"/>
+    <text x="200" y="214" font-size="10" class="gf-dim">TX 13</text>
+    <text x="30" y="252" font-size="10" class="gf-dim">commands on TX 13:</text>
+    <text x="30" y="266" font-size="10" class="gf-dim">$PCAS12 sleep, $PCAS10 wake</text>
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+    <text x="552" y="46" font-size="12" font-weight="600">GNSS App</text>
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+    <text x="552" y="118" font-size="12" font-weight="600">Status Bar</text>
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+    <rect class="gf-box" x="540" y="168" width="204" height="56" rx="6"/>
+    <text x="552" y="190" font-size="12" font-weight="600">Clock</text>
+    <text x="552" y="210" font-size="11" class="gf-dim">GNSS outranks NTP</text>
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+    <text x="552" y="262" font-size="12" font-weight="600">Tracks</text>
+    <text x="552" y="282" font-size="11" class="gf-dim">GPX on the SD card</text>
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