Tutorial: Printed-Circuit Boards

From dftwiki3
Revision as of 07:56, 23 June 2011 by Thiebaut (talk | contribs) (An Example)
Jump to: navigation, search

Page under construction!
UnderConstruction.jpg

--D. Thiebaut 12:37, 20 June 2011 (EDT)



Software

All are open-source.


Process

  • First create schematics with TinyCAD
  • Then route the lines on a 4-layer board with FreePCB
  • Check the CAM files generated by FreePCB with ViewMate
  • Once the output files are ready, upload them to PCBExpress (accept 4-layers+mask option).

An Example

  • We'll create a PCB for the following simple circuit taken from seekic.com:


7404Oscillator.jpg

TinyCAD

  • Open TinyCAD
  • Open the 74TTL library in the left pane
  • Pick the Hex Inverters
  • Drop two inverters on the blank schematics pane
  • Update the reference for each gate (U1A and U1B) in the Tool Options window.

TinyCAD1.png