This is revision A of the Hub7 SimpliciNet Hub and it is currently a work in progress.

Hub7 (Revision A)

Table of Contents

• Introduction
• Schematics
• PCB Artwork
• Issues

Introduction

{Introduction goes here}.

Schematics

The parts list lives in a separate file.

The schematics follow:

Selected Part Data Sheets:

• 26LS31
• 26LS32
• 74LS00
• 74LS08
• 74LS30
• 74LS32
• PIC16F62x

PCB Artwork

• Artwork
• Solder Side
• Component Side
• Gerber Artwork
• Gerber Solder Side
• Gerber Component Side
• Gerber Mask for top and bottom
• Excellon Drill File
• Drill Tool File

Software

The following software is available:

hub7.ucl

The µCL source code for the Hub7 firmware.

hub7.asm

The corresponding assembly file for the Hub7 firmware.

hub7.hex

The corresponding Intel^® hex file for the Hub7 firmware.

hub7.lst

The corresponding listing file for the Hub7 hex file.

Issues

The following fabrication issues have come up:

• The horizontal IC artwork does not have square to indicate which side has pin 1.
• The termination resistors should be 100 ohms.
• Capacitor C5 does not have a visible + sign in the artwork.
Capacitor C6 does not have a visible + sign in the artwork.
• Capacitor C5 should be .47uF.
• Capacitor C6 should be 22uF.
• Connector N9 should be flipped 180 degrees.
• Connector N2 (JACK) should have the positive terminal marked with a +.
• On the first implementation of this board, OliMex shorted pin 11 to pin 13 on U14. This short does not show up in either HobECAD or Gerber view. This appears to be a manufacturing defect.
• C6 is too close to U8. Maybe move the filter capacitor over?
• The positions on N13 should be labeled.
• Maybe add an up/link and down-link LED.