![Image](/./qsource/plugin/uhome/template/assets/img/user_home_headerbg.jpg)
看一段关于通讯的程序
2008-3-30 22:24
- 侃单片机论坛
- 9
- 1812
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
帧头+地址+命令字+长度+数据区CRC+帧尾
2008-4-2 09:06
- 侃单片机论坛
- 23
- 9635
![](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LED的寿命跟驱动电平变化频率有没有关系?
2008-2-22 10:41
- 通信技术
- 7
- 1780
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
485的灵活应用方案问题
2008-3-28 17:07
- 通信技术
- 21
- 3678
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
2
3
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