Li Chuang EDA learning notes 13: electrical network for drawing schematic diagram

net, It is the network formed by the interconnection of component pins .
You can name each signal line , This name is the network name . Signal lines with the same network name are connected by default .

For example, when drawing pictures vcc,gnd,sign1,reset wait .

Mainly used are network labels and network ports ：

Lichuang EDA Web tags support cross page connections .

Multiple network tags

Lichuang EDA Multiple different network names are allowed to exist on the same wire at the same time in the schematic diagram .

When you do circuit simulation 、 Convert to PCB when , Select only the first placed network tag as the network name , The following figure NETLABEL1.

When you click one of the network tabs in the schematic design manager , Will highlight the network wire in which it is located .

There will also be a corresponding prompt in the lower left corner ：

Be careful ：

• Web tags / Network identifier / Network port / Voltage probes only support English letters and symbols and Arabic numerals , Chinese is not supported .
• If you are in the wire 1 Put a network tag A、B、C, In the wire 2 Placed with the name A The Internet tag , So wire 1 And conductor 2 It will belong to the same network .
• If you put one in your schematic P1,P1 There are two pins , When it connects wires, a network named P1_1 and P1_2; At this time, if you are not connected to others P1 A network label named P1_1, So this is automatically generated P1_1 Will automatically change to P1_1(1), So as to meet with P1_1 distinguish .

 

The Internet cannot write Chinese , If a network wants to write some comments in Chinese , You can add text directly to the schematic .

After drawing the schematic diagram, you can directly assign the device numbers in sequence , After distribution , Each pin of each device will have different network marks , According to the electrical wiring rules of the schematic diagram , Wires will also have network names , In a converted into pcb In the picture , The network names of devices will be preserved , The wires will disappear , But there will be network flying lines .

Network port

When you need to draw many disconnected wires , Or when there are multiple pages of schematic diagrams , have access to “ Network port ” function ; Under the same schematic diagram , The use of network port is consistent with the function of network label .

Using the network port can make the schematic diagram clear and concise , Not too many wires , Just set a network name for each port .

Lichuang EDA The network port of supports cross drawing page connection . The current network port function is basically consistent with the network label , It can be considered as a different style .

Reasonable use of network ports , You can draw a lot less lines when drawing the circuit diagram , Reduce a lot of work .

Network tags can be used in all parts of the schematic , Network ports are generally used where there are ports . The main purpose is to mark the network .