This is really good:
Comments are open on the above presentation and feedback was requested.
- Communicates
- the data and power flow
- the functional blocks
- what the circuit does
- what assumptions were made
- Stuff flows left to right
- data and power left to right
- try and at least follow path
- allow enough white-space that the path is obvious
- Power symbols direction
- grounds and negatives always point down
- positive supplies always point up
- give yourself room if you don’t have it
- Schematic symbols are not packages
- Group you schematic into blocks
- separate blocks using white space
- otherwise use boxes (but they are not as good as white space)
- don’t go nuts on the boxes, though, they’re just visual noise
- LABEL THE BLOCKS
- Minimize the number of sheets, but don’t to the extreme Olimex does
- Hiearchical schematics are block diagrams
- Use wires not labels for connections
- your eye can track wires way faster than hunt for labels
- try to use wires when possible, you can’t always
- Do: Use labels
- Do: use global labels off sheet and use intersheet references
- Do: Religiously label power supplies
- label current as well
- Do: Use the Text Feature
- tell us what to expect at tests points
- when stuff is weird, please leave a note
- add arrows on wires that show what direction things are flowing
- Tek 422 – added scope plots to the schematic that shows what you should see
