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目录<br />
10<br />
打开原理图.................................................................................115<br />
Grid 栅格设置.............................................................................116<br />
Symbol 放置 Symbol...................................................................116<br />
Load Drawing Frame 加载绘图外框.....................................116<br />
放置电路符号(Gate)........................................................118<br />
隐藏电源 Gates....................................................................118<br />
具有多个 Gate 的 Device......................................................119<br />
Designlink.ulp – 访问 Farnell 公司的在线产品数据库..........119<br />
原理图连线.................................................................................120<br />
Draw Nets 绘制网络(NET 命令).......................................120<br />
为网络定义 Cross-References 交叉关联................................121<br />
定义网络簇 Net Classes(即网络分类)..............................123<br />
绘制总线(BUS)................................................................124<br />
Pinswap 和 Gateswap.................................................................125<br />
Power Supply 电源.....................................................................126<br />
定义属性.....................................................................................127<br />
全局属性..............................................................................127<br />
ERC – 检查、纠正原理图............................................................130<br />
组织原理图页面..........................................................................132<br />
原理图中需要注意的要点...........................................................132<br />
Superimposed Pins 引脚重叠...............................................132<br />
执行移动操作的未连接引脚.................................................133<br />
复制部分原理图...................................................................133<br />
确保 PCB 设计的一致性.......................................................133<br />
合并不同的原理图文件........................................................133<br />
确保 PCB 设计的一致性.......................................................134<br />
多通道设计..........................................................................134<br />
6.2 创建 PCB 板之前的注意事项.........................................................135<br />
检查元件库.................................................................................135<br />
和制板厂商达成一致...................................................................135<br />
定义设计规则.............................................................................136<br />
基本原则..............................................................................136<br />
Layers 信号层.......................................................................137<br />
最小 Clearance 和最小 Distance...........................................138<br />
Sizes 尺寸............................................................................139<br />
Restring 焊盘和过孔圆环直径..............................................139<br />
Shapes 形状.........................................................................142<br />
Supply 电源标签..................................................................143<br />
Masks..................................................................................144<br />
Misc 其他.............................................................................145<br />
6.3 创建电路板..................................................................................145
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