https://tommy0804.ddns.net/index.php?action=history&feed=atom&title=SCCB%2C_Arducam%2FOVM7251 2026-08-21T16:33:10Z 本wiki上此頁面的修訂紀錄 MediaWiki 1.43.9 https://tommy0804.ddns.net/index.php?title=SCCB,_Arducam/OVM7251&diff=556&oldid=prev 2026-08-21T05:17:52Z

<p>Refactor: add [[Category:Sensors and Modules ]]</p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="zh-Hant-TW"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">←上個修訂</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">2026年8月21日 (五) 13:17的版本</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l98">第98行：</td> <td colspan="2" class="diff-lineno">第98行：</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:IMG_20201117_171508585.jpg|1200px|SCCB_write_02]]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:IMG_20201117_171508585.jpg|1200px|SCCB_write_02]]</div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">[[Category:Sensors and Modules]]</ins></div></td></tr> </table>

Tommy https://tommy0804.ddns.net/index.php?title=SCCB,_Arducam/OVM7251&diff=482&oldid=prev 2020-11-17T09:39:32Z

<p>已建立頁面，內容為 &quot;<a href="/index.php/%E6%AA%94%E6%A1%88:Bp_rpi_ov7251.jpg" title="檔案:Bp rpi ov7251.jpg">400px|bus priate hacking ovm7251</a> == I2C init cmd == &lt;pre&gt; HiZ&gt;m 1. HiZ 2. 1-WIRE 3. UART 4. I2C 5. SPI 6. 2WIRE 7. 3WIRE 8. LCD x. exit(w…&quot;</p> <p><b>新頁面</b></p><div>[[File:bp_rpi_ov7251.jpg|400px|bus priate hacking ovm7251]]<br /> <br /> == I2C init cmd ==<br /> &lt;pre&gt;<br /> HiZ&gt;m<br /> 1. HiZ<br /> 2. 1-WIRE<br /> 3. UART<br /> 4. I2C<br /> 5. SPI<br /> 6. 2WIRE<br /> 7. 3WIRE<br /> 8. LCD<br /> x. exit(without change)<br /> <br /> (1)&gt;4<br /> Set speed:<br /> 1. ~5KHz<br /> 2. ~50KHz<br /> 3. ~100KHz<br /> 4. ~400KHz<br /> <br /> (1)&gt;4<br /> Ready<br /> I2C&gt;P<br /> Pull-up resistors ON<br /> Warning: no voltage on Vpullup pin<br /> I2C&gt;W<br /> POWER SUPPLIES ON<br /> I2C&gt;<br /> HiZ&gt;m<br /> 1. HiZ<br /> 2. 1-WIRE<br /> 3. UART<br /> 4. I2C<br /> 5. SPI<br /> 6. 2WIRE<br /> 7. 3WIRE<br /> 8. LCD<br /> x. exit(without change)<br /> <br /> (1)&gt;4<br /> Set speed:<br /> 1. ~5KHz<br /> 2. ~50KHz<br /> 3. ~100KHz<br /> 4. ~400KHz<br /> <br /> (1)&gt;4<br /> Ready<br /> I2C&gt;P<br /> Pull-up resistors ON<br /> Warning: no voltage on Vpullup pin<br /> I2C&gt;W<br /> POWER SUPPLIES ON<br /> I2C&gt;<br /> &lt;/pre&gt;<br /> <br /> == SCCB Read/Write ==<br /> &lt;pre&gt;<br /> I2C&gt;[0xc0 0x35 0x02][0xc1 r]<br /> I2C START BIT<br /> WRITE: 0xC0 ACK <br /> WRITE: 0x35 ACK <br /> WRITE: 0x02 ACK <br /> I2C STOP BIT<br /> I2C START BIT<br /> WRITE: 0xC1 ACK <br /> READ: 0x80 <br /> NACK<br /> I2C STOP BIT<br /> <br /> I2C&gt;[0xc0 0x35 0x02 0xf0]<br /> I2C START BIT<br /> WRITE: 0xC0 ACK <br /> WRITE: 0x35 ACK <br /> WRITE: 0x02 ACK <br /> WRITE: 0xF0 ACK <br /> I2C STOP BIT<br /> <br /> I2C&gt;[0xc0 0x35 0x02][0xc1 r]<br /> I2C START BIT<br /> WRITE: 0xC0 ACK <br /> WRITE: 0x35 ACK <br /> WRITE: 0x02 ACK <br /> I2C STOP BIT<br /> I2C START BIT<br /> WRITE: 0xC1 ACK <br /> READ: 0xF0 <br /> NACK<br /> I2C STOP BIT<br /> <br /> &lt;/pre&gt;<br /> <br /> <br /> [[File:IMG_20201117_171416598.jpg|1200px|SCCB_write_01]]<br /> <br /> <br /> [[File:IMG_20201117_171508585.jpg|1200px|SCCB_write_02]]</div>

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