mirror of
https://github.com/mytechnotalent/Embedded-Hacking.git
synced 2026-07-16 00:47:26 +02:00
Kevin Thomas
86 lines
4.0 KiB
XML
86 lines
4.0 KiB
XML
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<style>
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.bg{fill:#0a0a0f}.pnl{fill:#12121a;stroke:#1a1a2e}.hdr{fill:#12121a}
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.title{font:bold 42px 'Courier New',monospace;fill:#00ff41}
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.sub{font:bold 28px 'Courier New',monospace;fill:#00d4ff}
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.txt{font:24px 'Courier New',monospace;fill:#c0c0c0}
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.dim{font:20px 'Courier New',monospace;fill:#888}
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.grn{font:bold 24px 'Courier New',monospace;fill:#00ff41}
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.red{font:bold 24px 'Courier New',monospace;fill:#ff0040}
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.cyn{font:bold 24px 'Courier New',monospace;fill:#00d4ff}
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.amb{font:bold 24px 'Courier New',monospace;fill:#ffaa00}
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.badge{stroke:#00ff41;rx:14}
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</style>
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<rect class="bg" width="1200" height="800"/>
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<rect class="hdr" x="0" y="0" width="1200" height="100" rx="0"/>
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<text class="title" x="600" y="52" text-anchor="middle">PWM & Servo Hacking</text>
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<text class="dim" x="600" y="88" text-anchor="middle">Conditionals, PWM, Servo, and Hacking</text>
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<!-- Static vs Dynamic -->
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<rect class="pnl" x="30" y="110" width="555" height="200" rx="8"/>
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<text class="sub" x="50" y="150">Static vs Dynamic</text>
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<text class="grn" x="50" y="185">Static</text>
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<text class="dim" x="200" y="185">choice = 1 (fixed)</text>
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<text class="dim" x="200" y="210">Same path every iteration</text>
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<text class="dim" x="200" y="235">Compiler may optimize</text>
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<text class="cyn" x="50" y="270">Dynamic</text>
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<text class="dim" x="200" y="270">choice = getchar()</text>
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<text class="dim" x="200" y="295">Different paths at runtime</text>
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<!-- PWM -->
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<rect class="pnl" x="615" y="110" width="555" height="200" rx="8"/>
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<text class="sub" x="635" y="150">PWM for Servos</text>
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<text class="txt" x="635" y="185">150MHz / 150 = 1MHz tick</text>
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<text class="txt" x="635" y="220">Wrap 20000 = 50Hz (20ms)</text>
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<text class="dim" x="635" y="255">0deg=1000us 90deg=1500us 180deg=2000us</text>
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<text class="cyn" x="635" y="290">pulse = 1000 + (angle/180) x 1000</text>
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<!-- Branch Instructions -->
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<rect class="pnl" x="30" y="330" width="555" height="180" rx="8"/>
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<text class="sub" x="50" y="370">Branch Instructions</text>
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<text class="grn" x="50" y="405">cmp r4, #0x31</text>
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<text class="dim" x="350" y="405">Compare</text>
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<text class="grn" x="50" y="435">beq target</text>
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<text class="dim" x="350" y="435">Jump if equal</text>
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<text class="grn" x="50" y="465">bne target</text>
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<text class="dim" x="350" y="465">Jump if not equal</text>
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<text class="dim" x="50" y="495">NOP = 00 bf (erase code)</text>
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<!-- Key Addresses -->
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<rect class="pnl" x="615" y="330" width="555" height="180" rx="8"/>
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<text class="sub" x="635" y="370">Key Values</text>
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<text class="cyn" x="635" y="405">0x10000234</text>
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<text class="dim" x="870" y="405">main()</text>
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<text class="cyn" x="635" y="435">0x40070000</text>
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<text class="dim" x="870" y="435">UART0</text>
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<text class="cyn" x="635" y="465">0x1F4</text>
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<text class="dim" x="870" y="465">500 (sleep_ms)</text>
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<text class="cyn" x="635" y="495">0x43340000</text>
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<text class="dim" x="870" y="495">180.0f IEEE-754</text>
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<!-- Hacking Techniques -->
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<rect class="pnl" x="30" y="530" width="1140" height="120" rx="8"/>
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<text class="sub" x="50" y="570">4 Hack Types Applied</text>
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<text class="amb" x="50" y="600">String</text>
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<text class="dim" x="180" y="600">"one"-->"fun"</text>
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<text class="amb" x="420" y="600">Timing</text>
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<text class="dim" x="550" y="600">500ms-->100ms</text>
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<text class="amb" x="50" y="625">Stealth</text>
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<text class="dim" x="180" y="625">NOP out prints</text>
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<text class="amb" x="420" y="625">Angle</text>
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<text class="dim" x="550" y="625">180.0f-->30.0f</text>
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<!-- Projects and IEEE -->
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<rect class="pnl" x="30" y="660" width="555" height="100" rx="8"/>
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<text class="sub" x="50" y="692">Projects</text>
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<text class="dim" x="50" y="718">0x001d_static-conditionals</text>
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<text class="dim" x="50" y="740">0x0020_dynamic-conditionals</text>
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<rect class="pnl" x="615" y="660" width="555" height="100" rx="8"/>
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<text class="sub" x="635" y="692">IEEE-754 Angles</text>
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<text class="dim" x="635" y="718">0.0f=00000000 90.0f=42b40000</text>
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<text class="dim" x="635" y="740">180.0f=43340000 30.0f=41f00000</text>
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</svg>
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