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ORT8850 Evaluation Board Tutorial
Overview
This tutorial will assist first-time users of the ORCA ORT8850 how to use the evaluation board to understand the device
features as well as the capabilities of the evaluation board. To use the tutorial, the user must have an installed copy of
ORCA Foundry 2001 software and an understanding of the ORCA Device Programming Download Cable which is
described in the Lattice Semiconductor technical note TN1009. Users should also reference the ORT8850 Evaluation Board
Users Manual.
The tutorial and the supporting design files can be downloaded from the design tools section of the Lattice web site at
http://www.latticesemi.com
. The tutorial design was created for use as a template for future designs. This design includes
simple pattern generation for 8- ORT8850 LVDS channels and the appropriate register settings to enable the internal and
external communication links.
Getting Started
The following steps will make the proper board interconnections for power supplies, input signals, and output signals.
•
Add push-on jumper shunts for the following.
Jumper
Pin
Pin
J71
1
2
J77
1
2
J78
1
2
J51
3
5
J53
3
5
J55
1
3
J57
1
3
J59
1
3
J22
1
2
JP3
1
2
JP3
7
8
JP4
1
2
JP4
7
8
J26
1
2
J72
2
4
•
Connect short 20-contact IDC ribbon cable between J13 & J5
•
Connect single patch cable between J4.1 and J16.1
