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做了一块4层的PCB板，系统时钟大约66Mhz，大家帮帮看看，提提意见，<br /><br />看看有没有大的错误，十分感谢<br /><br />第一次做，感觉画的板太丑了，但只要别调试出大问题就好！<br />https://bbs.21ic.com/upfiles/img/200712/20071211103038954.pdf<br />https://bbs.21ic.com/upfiles/img/200712/20071211103552244.pdf<br />https://bbs.21ic.com/upfiles/img/200712/20071211103617453.pdf<br />https://bbs.21ic.com/upfiles/img/200712/20071211103637489.pdf<br />https://bbs.21ic.com/upfiles/img/200712/2007121110370178.pdf<br />https://bbs.21ic.com/upfiles/img/200712/20071211103716736.pdf<br /> 相关链接:<a href='https://bbs.21ic.com/upfiles/img/200712/20071211103716736.pdf'>https://bbs.21ic.com/upfiles/img/200712/20071211103716736.pdf</a> |
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