https://tommy0804.ddns.net/index.php?action=history&feed=atom&title=Application_-_DS1302%2C_RTC_module 2026-08-21T16:32:19Z 本wiki上此頁面的修訂紀錄 MediaWiki 1.43.9 https://tommy0804.ddns.net/index.php?title=Application_-_DS1302,_RTC_module&diff=504&oldid=prev 2026-08-21T05:17:37Z

<p>Refactor: add [[Category:Projects ]]</p> <p><b>新頁面</b></p><div>[[File:Rpi rtc.jpg|border|400px]]<br /> == Hardware ==<br /> [[File:Real-time-clock-connection.jpg|border|RPi with DS1302]]<br /> * In version 2 Pi GPIO27 is in place of GPIO21 (same pin)<br /> == Software ==<br /> * [http://www.hobbytronics.co.uk/download/rtc-pi.zip, Real Time Clock Source Code]<br /> &lt;pre&gt;<br /> Modify the following GPIO definition for RPi 2<br /> #define GPIO_ADD 0x20200000L -&gt; #define GPIO_ADD 0x3F000000L<br /> #define SCLK_OUTPUT *(gpio+GPIO_SEL2) &amp;= 0xFFFFFFC7L -&gt; #define SCLK_OUTPUT *(gpio+GPIO_SEL2) &amp;= 0xFF1FFFFFL<br /> #define SCLK_HIGH *(gpio+GPIO_SET) = 0x00200000L -&gt; #define SCLK_HIGH *(gpio+GPIO_SET) = 0x08000000L<br /> #define SCLK_LOW *(gpio+GPIO_CLR) = 0x00200000L -&gt; #define SCLK_LOW *(gpio+GPIO_CLR) = 0x08000000L<br /> &lt;/pre&gt;<br /> <br /> == Reference ==<br /> * [http://www.hobbytronics.co.uk/raspberry-pi-real-time-clock, Raspberry Pi Real Time Clock]<br /> <br /> [[Category:Projects]]</div>

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