Symbol Creation
Introduction
Resources
Steps
-
Open up KiCad (start –> KiCad) and select the Symbol Editor
Schematic Capture
Introduction
Resources
- LM3178 (On Digikey | datasheet)
- Symbol Creation Tutorial
- KiCad.org
- KiCad Documentation
Steps
-
Open KiCad
Generating a Netlist
Introduction
A Netlist is essentially a file containing information regarding connections between the components on a schematic. Information regarding the components such as their reference designators and pin numbers are also included in this file. This file provides a map of all the parts on a schematic and their wired connections, which is than used to lay out a PCB.
Common Pin Types and their Meanings
Modified from here
| Pin Type | Description |
|---|---|
| Input | A pin which is exclusively an input. |
| Output | A pin which is exclusively an output. |
| Bidirectional | A pin that can be either an input or an output, such as a microcontroller data bus pin. |
| Tri-state | A three state output pin (high, low, or high impedance) |
| Passive | A passive symbol pin: resistors, connectors, etc. |
| Free | A pin that can be freely connected to any other pin without electrical concerns. |
| Unspecified | A pin for which the ERC check does not matter. |
| Power input | A symbol’s power pin. As a special case, power input pins that are marked invisible are automatically connected to the net with the same name. See the Power Ports section for more information. |
| Power output | A pin that provides power to other pins, such as a regulator output. |
| Open collector | An open collector logic output. |
| Open emitter | An open emitter logic output. |
| Unconnected | A pin that should not be connected to anything. |
