LAOS Laser

h1. Setting up electronics and network for the HPC LS3020

{{>toc}}

This will show you how to install the mainboard in your HPC laser and get you operational. Have your mainboard (rev2 or rev3) assembled and tested, and download the correct Configuration file for the controller.

h2. Power supply

There are different types of power supply and different ways to hook up the stepper motors and limit switches:

The original power supply has these connectors:

!320px-IMAG0231.jpg! 

it's pinout can be found here: [[HPC_original_power_supply]]

The new July 2012 version has these connectors:

!320px-Power-LS3020.jpg!

it's pinout can be found here: [[HPC_July_2012_power_supply]]

Both power supplies have a 3-pin cable with a Phoenix connector to connect to the LaOS board. 

{| style="color:black; background-color:#ffffcc;" cellpadding="10" cellspacing="0" border="1"

!Colorl!!Signal!!Connect to

|-

|RED||+24V||J5.1 VMOT

|-

|YELLOW||GND||J5.2 GND

|-

|BLUE||+5V||J5.3 VCPU

|-

|}

h2. Stepper motors and limit switches

There are two (known) versions:

* one with a JST connector for the X-axis stepper motor and for the limit switches

* one with a 12-pin flatcable combining X-axis stepper motor and limit switches

h3. HPC-flat-cable-pinning.jpg

The combination *new power supply* with *flat cable* is described on the [[HPC LS3020 connections - July 2012]] page.

h2. Ethernet networking

The LAOS board needs to be hooked up to your Ethernet network. The protocol used is TFTP, which requires either the [[LAOS CUPS driver]] or [[Visicut]] on your computer to talk to it.

There is a "net.dhcp" configuration parameter in the [[LAOS configuration file]] on the mbed, which causes the LAOS board to obtain an IP address via DHCP if set to "1". The default config file causes the LAOS board to listen on port 69 ("net.port 69").

If you don't want to use DHCP, you'll need to manually set a couple of network parameters in that same config file.