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89S52加USBD12模拟的一个U盘(源码+原理图+实物照片)
2014-8-7 08:49
- USB技术专区
- 25
- 8479
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
p0口
2007-11-6 09:31
- 侃单片机论坛
- 8
- 2196
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
请教一个关于延时的问题
2007-11-6 14:27
- 侃单片机论坛
- 5
- 2261
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
单片机I/O
2007-11-1 22:34
- 新手园地
- 3
- 1754
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
大家帮我看下我的I2C时序
2007-11-5 16:44
- 新手园地
- 9
- 2703
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
问个防盗门的原理?
2007-11-22 15:46
- 新手园地
- 27
- 4375
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
请问R和C怎么选择?
2007-11-28 19:16
- 新手园地
- 22
- 3889
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
汇编到处都去得,C就不知道该怎么去了。
2007-11-2 22:52
- 新手园地
- 14
- 1942
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
全面的万年历(修正版)
2007-11-20 12:06
- 侃单片机论坛
- 23
- 5555
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
看门狗?
2007-11-2 23:57
- 侃单片机论坛
- 9
- 2231
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
一起来学LCD12864菜单程序(包含完整程序)
2014-2-27 12:11
- 侃单片机论坛
- 72
- 18800
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
发个图 大家看看。
2007-11-15 21:39
- 电路赏析
- 18
- 4261
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
发个手机PCB给大家看看
2013-4-10 08:16
- 电路赏析
- 94
- 23416
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
带字库的LCD和不带字库的LCD有什么区别
2007-11-11 13:21
- 图形接口设计
- 8
- 4878
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
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