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fix(mcpwm): correct the wrong capture prescale
This commit is contained in:
Chen Jichang
74
docs/_static/mcpwm/capture_prescale_both.svg
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74
docs/_static/mcpwm/capture_prescale_both.svg
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|
||||
<?xml version="1.0" encoding="UTF-8"?>
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 700 440" font-family="'DejaVu Sans Mono', 'Consolas', 'Liberation Mono', monospace">
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<defs>
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<marker id="arr" markerWidth="8" markerHeight="6" refX="8" refY="3" orient="auto">
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<polygon points="0,0 8,3 0,6" fill="#555"/>
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</marker>
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</defs>
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<rect width="700" height="440" fill="#ffffff" rx="8"/>
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<text x="350" y="24" text-anchor="middle" font-size="13" fill="#333" font-weight="700">Both edges</text>
|
||||
<text x="350" y="42" text-anchor="middle" font-size="10" fill="#666">API prescale = same-edge ratio</text>
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||||
|
||||
<text x="20" y="68" font-size="12" fill="#333" font-weight="700">A. prescale = 1 (bypass)</text>
|
||||
<g transform="translate(80, 78)">
|
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<text x="-10" y="36" text-anchor="end" font-size="11" fill="#1e88e5" font-weight="600">input</text>
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<polyline fill="none" stroke="#1e88e5" stroke-width="2"
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points="0,40 0,12 35,12 35,40 70,40 70,12 105,12 105,40 140,40 140,12 175,12 175,40 210,40"/>
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<g fill="#e53935"><circle cx="0" cy="12" r="3.5"/><circle cx="70" cy="12" r="3.5"/><circle cx="140" cy="12" r="3.5"/></g>
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<g fill="#fb8c00"><rect x="31" y="8" width="8" height="8"/><rect x="101" y="8" width="8" height="8"/><rect x="171" y="8" width="8" height="8"/></g>
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<text x="-10" y="100" text-anchor="end" font-size="11" fill="#333" font-weight="600">capture</text>
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<line x1="0" y1="92" x2="210" y2="92" stroke="#999" stroke-width="1.5"/>
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<line x1="0" y1="12" x2="0" y2="92" stroke="#e53935" stroke-width="1" stroke-dasharray="3,3"/>
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<line x1="35" y1="40" x2="35" y2="92" stroke="#fb8c00" stroke-width="1" stroke-dasharray="3,3"/>
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<line x1="70" y1="12" x2="70" y2="92" stroke="#e53935" stroke-width="1" stroke-dasharray="3,3"/>
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<line x1="105" y1="40" x2="105" y2="92" stroke="#fb8c00" stroke-width="1" stroke-dasharray="3,3"/>
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<polyline points="0,92 0,72 12,72 12,92" fill="none" stroke="#e53935" stroke-width="2"/>
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<polyline points="35,92 35,72 47,72 47,92" fill="none" stroke="#fb8c00" stroke-width="2"/>
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<polyline points="70,92 70,72 82,72 82,92" fill="none" stroke="#e53935" stroke-width="2"/>
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<polyline points="105,92 105,72 117,72 117,92" fill="none" stroke="#fb8c00" stroke-width="2"/>
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<text x="6" y="66" text-anchor="middle" font-size="10" fill="#e53935" font-weight="700">R</text>
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||||
<text x="41" y="66" text-anchor="middle" font-size="10" fill="#fb8c00" font-weight="700">F</text>
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||||
<text x="76" y="66" text-anchor="middle" font-size="10" fill="#e53935" font-weight="700">R</text>
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||||
<text x="111" y="66" text-anchor="middle" font-size="10" fill="#fb8c00" font-weight="700">F</text>
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||||
<text x="250" y="36" font-size="10" fill="#e53935" font-weight="600">R = GPIO rising</text>
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||||
<text x="250" y="54" font-size="10" fill="#fb8c00" font-weight="600">F = GPIO falling</text>
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</g>
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||||
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||||
<text x="20" y="228" font-size="12" fill="#333" font-weight="700">B. prescale = 4</text>
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||||
<g transform="translate(80, 250)">
|
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<text x="-10" y="36" text-anchor="end" font-size="11" fill="#1e88e5" font-weight="600">input</text>
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<polyline fill="none" stroke="#1e88e5" stroke-width="2"
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points="0,40 0,12 35,12 35,40 70,40 70,12 105,12 105,40 140,40 140,12 175,12 175,40 210,40 210,12 245,12 245,40 280,40 280,12 315,12 315,40 350,40 350,12 385,12 385,40 420,40 420,12 455,12 455,40 490,40 490,12"/>
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<!-- first at cycle 1, then every 2: 1(R),3(F),5(R),7(F) -->
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<g fill="#1e88e5"><circle cx="70" cy="12" r="3.5"/><circle cx="210" cy="12" r="3.5"/><circle cx="350" cy="12" r="3.5"/><circle cx="490" cy="12" r="3.5"/></g>
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<g fill="#bbb"><circle cx="0" cy="12" r="3"/><circle cx="140" cy="12" r="3"/><circle cx="280" cy="12" r="3"/><circle cx="420" cy="12" r="3"/></g>
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<g fill="#ccc"><rect x="31" y="8" width="8" height="8"/><rect x="101" y="8" width="8" height="8"/><rect x="171" y="8" width="8" height="8"/><rect x="241" y="8" width="8" height="8"/><rect x="311" y="8" width="8" height="8"/><rect x="381" y="8" width="8" height="8"/><rect x="451" y="8" width="8" height="8"/></g>
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<text x="70" y="-4" text-anchor="middle" font-size="9" fill="#1e88e5" font-weight="700">cycle 1</text>
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||||
<text x="210" y="-4" text-anchor="middle" font-size="9" fill="#1e88e5" font-weight="700">cycle 3</text>
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||||
<text x="350" y="-4" text-anchor="middle" font-size="9" fill="#1e88e5" font-weight="700">cycle 5</text>
|
||||
<text x="490" y="-4" text-anchor="middle" font-size="9" fill="#1e88e5" font-weight="700">cycle 7</text>
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||||
|
||||
<text x="-10" y="100" text-anchor="end" font-size="11" fill="#333" font-weight="600">capture</text>
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<line x1="0" y1="92" x2="490" y2="92" stroke="#999" stroke-width="1.5"/>
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<line x1="70" y1="12" x2="70" y2="92" stroke="#e53935" stroke-width="1" stroke-dasharray="3,3"/>
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<line x1="210" y1="12" x2="210" y2="92" stroke="#fb8c00" stroke-width="1" stroke-dasharray="3,3"/>
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<line x1="350" y1="12" x2="350" y2="92" stroke="#e53935" stroke-width="1" stroke-dasharray="3,3"/>
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<line x1="490" y1="12" x2="490" y2="92" stroke="#fb8c00" stroke-width="1" stroke-dasharray="3,3"/>
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<polyline points="70,92 70,70 82,70 82,92" fill="none" stroke="#e53935" stroke-width="2"/>
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<polyline points="210,92 210,70 222,70 222,92" fill="none" stroke="#fb8c00" stroke-width="2"/>
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<polyline points="350,92 350,70 362,70 362,92" fill="none" stroke="#e53935" stroke-width="2"/>
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<polyline points="490,92 490,70 502,70 502,92" fill="none" stroke="#fb8c00" stroke-width="2"/>
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<text x="76" y="64" text-anchor="middle" font-size="10" fill="#e53935" font-weight="700">R</text>
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||||
<text x="216" y="64" text-anchor="middle" font-size="10" fill="#fb8c00" font-weight="700">F</text>
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||||
<text x="356" y="64" text-anchor="middle" font-size="10" fill="#e53935" font-weight="700">R</text>
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||||
<text x="496" y="64" text-anchor="middle" font-size="10" fill="#fb8c00" font-weight="700">F</text>
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||||
<line x1="70" y1="110" x2="70" y2="120" stroke="#666"/><line x1="210" y1="110" x2="210" y2="120" stroke="#666"/>
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<line x1="70" y1="115" x2="210" y2="115" stroke="#666" stroke-width="1.5" marker-end="url(#arr)"/>
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<text x="140" y="134" text-anchor="middle" font-size="10" fill="#666" font-weight="600">adj = 2 x T = (prescale/2) x T</text>
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<line x1="70" y1="144" x2="70" y2="154" stroke="#e53935"/><line x1="350" y1="144" x2="350" y2="154" stroke="#e53935"/>
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<line x1="70" y1="149" x2="350" y2="149" stroke="#e53935" stroke-width="1.5" marker-end="url(#arr)"/>
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<text x="210" y="168" text-anchor="middle" font-size="11" fill="#e53935" font-weight="600">R-to-R = 4 x T = prescale x T</text>
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||||
</g>
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||||
</svg>
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||||
|
After Width: | Height: | Size: 6.5 KiB |
61
docs/_static/mcpwm/capture_prescale_falling.svg
vendored
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61
docs/_static/mcpwm/capture_prescale_falling.svg
vendored
Normal file
@@ -0,0 +1,61 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 700 420" font-family="'DejaVu Sans Mono', 'Consolas', 'Liberation Mono', monospace">
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<defs>
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<marker id="arr" markerWidth="8" markerHeight="6" refX="8" refY="3" orient="auto">
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<polygon points="0,0 8,3 0,6" fill="#555"/>
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</marker>
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</defs>
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<rect width="700" height="420" fill="#ffffff" rx="8"/>
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<text x="350" y="24" text-anchor="middle" font-size="13" fill="#333" font-weight="700">Falling-edge only</text>
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||||
<text x="350" y="42" text-anchor="middle" font-size="10" fill="#666">API prescale = same-edge ratio</text>
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||||
|
||||
<text x="20" y="68" font-size="12" fill="#333" font-weight="700">A. prescale = 1 (bypass)</text>
|
||||
<g transform="translate(80, 78)">
|
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<text x="-10" y="36" text-anchor="end" font-size="11" fill="#1e88e5" font-weight="600">input</text>
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<polyline fill="none" stroke="#1e88e5" stroke-width="2"
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points="0,40 0,12 35,12 35,40 70,40 70,12 105,12 105,40 140,40 140,12 175,12 175,40 210,40"/>
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<g fill="#ccc"><circle cx="0" cy="12" r="3"/><circle cx="70" cy="12" r="3"/><circle cx="140" cy="12" r="3"/></g>
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<g fill="#fb8c00"><rect x="31" y="8" width="8" height="8"/><rect x="101" y="8" width="8" height="8"/><rect x="171" y="8" width="8" height="8"/></g>
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<text x="-10" y="100" text-anchor="end" font-size="11" fill="#fb8c00" font-weight="600">capture</text>
|
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<line x1="0" y1="92" x2="210" y2="92" stroke="#fb8c00" stroke-width="1.5"/>
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<line x1="35" y1="40" x2="35" y2="92" stroke="#ccc" stroke-width="1" stroke-dasharray="3,3"/>
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<line x1="105" y1="40" x2="105" y2="92" stroke="#ccc" stroke-width="1" stroke-dasharray="3,3"/>
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<line x1="175" y1="40" x2="175" y2="92" stroke="#ccc" stroke-width="1" stroke-dasharray="3,3"/>
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<polyline points="35,92 35,72 47,72 47,92" fill="none" stroke="#fb8c00" stroke-width="2"/>
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<polyline points="105,92 105,72 117,72 117,92" fill="none" stroke="#fb8c00" stroke-width="2"/>
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<polyline points="175,92 175,72 187,72 187,92" fill="none" stroke="#fb8c00" stroke-width="2"/>
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<text x="41" y="66" text-anchor="middle" font-size="10" fill="#fb8c00" font-weight="700">F</text>
|
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<text x="111" y="66" text-anchor="middle" font-size="10" fill="#fb8c00" font-weight="700">F</text>
|
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<text x="181" y="66" text-anchor="middle" font-size="10" fill="#fb8c00" font-weight="700">F</text>
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||||
<text x="250" y="40" font-size="10" fill="#555">Every falling edge -> F</text>
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||||
<text x="250" y="58" font-size="10" fill="#888">Rising edges ignored</text>
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||||
</g>
|
||||
|
||||
<text x="20" y="228" font-size="12" fill="#333" font-weight="700">B. prescale = 4</text>
|
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<g transform="translate(80, 250)">
|
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<text x="-10" y="36" text-anchor="end" font-size="11" fill="#1e88e5" font-weight="600">input</text>
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<polyline fill="none" stroke="#1e88e5" stroke-width="2"
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points="0,40 0,12 35,12 35,40 70,40 70,12 105,12 105,40 140,40 140,12 175,12 175,40 210,40 210,12 245,12 245,40 280,40 280,12 315,12 315,40 350,40 350,12 385,12 385,40 420,40 420,12 455,12 455,40 490,40 490,12"/>
|
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<!-- first at cycle 3, then every 4: cycle 3, 7 -->
|
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<g fill="#1e88e5"><circle cx="210" cy="12" r="3.5"/><circle cx="490" cy="12" r="3.5"/></g>
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<g fill="#bbb"><circle cx="0" cy="12" r="3"/><circle cx="70" cy="12" r="3"/><circle cx="140" cy="12" r="3"/><circle cx="280" cy="12" r="3"/><circle cx="350" cy="12" r="3"/><circle cx="420" cy="12" r="3"/></g>
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<g fill="#ccc"><rect x="31" y="8" width="8" height="8"/><rect x="101" y="8" width="8" height="8"/><rect x="171" y="8" width="8" height="8"/><rect x="241" y="8" width="8" height="8"/><rect x="311" y="8" width="8" height="8"/><rect x="381" y="8" width="8" height="8"/><rect x="451" y="8" width="8" height="8"/></g>
|
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<text x="210" y="-4" text-anchor="middle" font-size="9" fill="#1e88e5" font-weight="700">cycle 3</text>
|
||||
<text x="490" y="-4" text-anchor="middle" font-size="9" fill="#1e88e5" font-weight="700">cycle 7</text>
|
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<line x1="0" y1="52" x2="70" y2="52" stroke="#bbb" stroke-width="1"/>
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<line x1="0" y1="48" x2="0" y2="56" stroke="#bbb"/><line x1="70" y1="48" x2="70" y2="56" stroke="#bbb"/>
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<text x="35" y="68" text-anchor="middle" font-size="10" fill="#888">T</text>
|
||||
<text x="-10" y="108" text-anchor="end" font-size="11" fill="#fb8c00" font-weight="600">capture</text>
|
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<line x1="0" y1="100" x2="490" y2="100" stroke="#fb8c00" stroke-width="1.5"/>
|
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<line x1="210" y1="12" x2="210" y2="100" stroke="#ccc" stroke-width="1" stroke-dasharray="3,3"/>
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<line x1="490" y1="12" x2="490" y2="100" stroke="#ccc" stroke-width="1" stroke-dasharray="3,3"/>
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<polyline points="210,100 210,80 222,80 222,100" fill="none" stroke="#fb8c00" stroke-width="2"/>
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<polyline points="490,100 490,80 502,80 502,100" fill="none" stroke="#fb8c00" stroke-width="2"/>
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<text x="216" y="74" text-anchor="middle" font-size="10" fill="#fb8c00" font-weight="700">F</text>
|
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<text x="496" y="74" text-anchor="middle" font-size="10" fill="#fb8c00" font-weight="700">F</text>
|
||||
<text x="350" y="90" text-anchor="middle" font-size="10" fill="#555">first = prescale - 1, then every 4</text>
|
||||
<line x1="210" y1="118" x2="210" y2="130" stroke="#333"/><line x1="490" y1="118" x2="490" y2="130" stroke="#333"/>
|
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<line x1="210" y1="124" x2="490" y2="124" stroke="#333" stroke-width="1.5" marker-end="url(#arr)"/>
|
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<text x="350" y="146" text-anchor="middle" font-size="11" fill="#333" font-weight="600">same-edge = 4 x T = prescale x T</text>
|
||||
</g>
|
||||
</svg>
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||||
|
After Width: | Height: | Size: 5.4 KiB |
60
docs/_static/mcpwm/capture_prescale_rising.svg
vendored
Normal file
60
docs/_static/mcpwm/capture_prescale_rising.svg
vendored
Normal file
@@ -0,0 +1,60 @@
|
||||
<?xml version="1.0" encoding="UTF-8"?>
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 700 400" font-family="'DejaVu Sans Mono', 'Consolas', 'Liberation Mono', monospace">
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<defs>
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<marker id="arr" markerWidth="8" markerHeight="6" refX="8" refY="3" orient="auto">
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<polygon points="0,0 8,3 0,6" fill="#555"/>
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</marker>
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</defs>
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<rect width="700" height="400" fill="#ffffff" rx="8"/>
|
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<text x="350" y="24" text-anchor="middle" font-size="13" fill="#333" font-weight="700">Rising-edge only</text>
|
||||
<text x="350" y="42" text-anchor="middle" font-size="10" fill="#666">API prescale = same-edge ratio</text>
|
||||
|
||||
<text x="20" y="68" font-size="12" fill="#333" font-weight="700">A. prescale = 1 (bypass)</text>
|
||||
<g transform="translate(80, 78)">
|
||||
<text x="-10" y="36" text-anchor="end" font-size="11" fill="#1e88e5" font-weight="600">input</text>
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<polyline fill="none" stroke="#1e88e5" stroke-width="2"
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points="0,40 0,12 35,12 35,40 70,40 70,12 105,12 105,40 140,40 140,12 175,12 175,40 210,40"/>
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<g fill="#1e88e5"><circle cx="0" cy="12" r="3.5"/><circle cx="70" cy="12" r="3.5"/><circle cx="140" cy="12" r="3.5"/></g>
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<g fill="#ccc"><rect x="31" y="8" width="8" height="8"/><rect x="101" y="8" width="8" height="8"/><rect x="171" y="8" width="8" height="8"/></g>
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<text x="-10" y="100" text-anchor="end" font-size="11" fill="#e53935" font-weight="600">capture</text>
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<line x1="0" y1="92" x2="210" y2="92" stroke="#e53935" stroke-width="1.5"/>
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<line x1="0" y1="12" x2="0" y2="92" stroke="#ccc" stroke-width="1" stroke-dasharray="3,3"/>
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<line x1="70" y1="12" x2="70" y2="92" stroke="#ccc" stroke-width="1" stroke-dasharray="3,3"/>
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<line x1="140" y1="12" x2="140" y2="92" stroke="#ccc" stroke-width="1" stroke-dasharray="3,3"/>
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<polyline points="0,92 0,72 12,72 12,92" fill="none" stroke="#e53935" stroke-width="2"/>
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<polyline points="70,92 70,72 82,72 82,92" fill="none" stroke="#e53935" stroke-width="2"/>
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<polyline points="140,92 140,72 152,72 152,92" fill="none" stroke="#e53935" stroke-width="2"/>
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<text x="6" y="66" text-anchor="middle" font-size="10" fill="#e53935" font-weight="700">R</text>
|
||||
<text x="76" y="66" text-anchor="middle" font-size="10" fill="#e53935" font-weight="700">R</text>
|
||||
<text x="146" y="66" text-anchor="middle" font-size="10" fill="#e53935" font-weight="700">R</text>
|
||||
<text x="250" y="40" font-size="10" fill="#555">Every rising edge -> R</text>
|
||||
<text x="250" y="58" font-size="10" fill="#888">Falling edges ignored</text>
|
||||
</g>
|
||||
|
||||
<text x="20" y="228" font-size="12" fill="#333" font-weight="700">B. prescale = 4</text>
|
||||
<g transform="translate(80, 250)">
|
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<text x="-10" y="36" text-anchor="end" font-size="11" fill="#1e88e5" font-weight="600">input</text>
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<polyline fill="none" stroke="#1e88e5" stroke-width="2"
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points="0,40 0,12 35,12 35,40 70,40 70,12 105,12 105,40 140,40 140,12 175,12 175,40 210,40 210,12 245,12 245,40 280,40 280,12 315,12 315,40 350,40 350,12 385,12 385,40 420,40 420,12"/>
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<!-- first at cycle 1, then every 4: cycle 1, 5 -->
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<g fill="#bbb"><circle cx="0" cy="12" r="3"/><circle cx="140" cy="12" r="3"/><circle cx="210" cy="12" r="3"/><circle cx="280" cy="12" r="3"/><circle cx="420" cy="12" r="3"/></g>
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<g fill="#1e88e5"><circle cx="70" cy="12" r="3.5"/><circle cx="350" cy="12" r="3.5"/></g>
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<text x="70" y="-4" text-anchor="middle" font-size="9" fill="#1e88e5" font-weight="700">cycle 1</text>
|
||||
<text x="350" y="-4" text-anchor="middle" font-size="9" fill="#1e88e5" font-weight="700">cycle 5</text>
|
||||
<line x1="0" y1="52" x2="70" y2="52" stroke="#bbb" stroke-width="1"/>
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<line x1="0" y1="48" x2="0" y2="56" stroke="#bbb"/><line x1="70" y1="48" x2="70" y2="56" stroke="#bbb"/>
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||||
<text x="35" y="68" text-anchor="middle" font-size="10" fill="#888">T</text>
|
||||
<text x="-10" y="108" text-anchor="end" font-size="11" fill="#e53935" font-weight="600">capture</text>
|
||||
<line x1="0" y1="100" x2="420" y2="100" stroke="#e53935" stroke-width="1.5"/>
|
||||
<line x1="70" y1="12" x2="70" y2="100" stroke="#ccc" stroke-width="1" stroke-dasharray="3,3"/>
|
||||
<line x1="350" y1="12" x2="350" y2="100" stroke="#ccc" stroke-width="1" stroke-dasharray="3,3"/>
|
||||
<polyline points="70,100 70,80 82,80 82,100" fill="none" stroke="#e53935" stroke-width="2"/>
|
||||
<polyline points="350,100 350,80 362,80 362,100" fill="none" stroke="#e53935" stroke-width="2"/>
|
||||
<text x="76" y="74" text-anchor="middle" font-size="10" fill="#e53935" font-weight="700">R</text>
|
||||
<text x="356" y="74" text-anchor="middle" font-size="10" fill="#e53935" font-weight="700">R</text>
|
||||
<text x="210" y="90" text-anchor="middle" font-size="10" fill="#555">first = prescale/2 - 1, then every 4</text>
|
||||
<line x1="70" y1="118" x2="70" y2="130" stroke="#333"/><line x1="350" y1="118" x2="350" y2="130" stroke="#333"/>
|
||||
<line x1="70" y1="124" x2="350" y2="124" stroke="#333" stroke-width="1.5" marker-end="url(#arr)"/>
|
||||
<text x="210" y="146" text-anchor="middle" font-size="11" fill="#333" font-weight="600">same-edge = 4 x T = prescale x T</text>
|
||||
</g>
|
||||
</svg>
|
||||
|
After Width: | Height: | Size: 5.0 KiB |
Reference in New Issue
Block a user