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Purpose of this tutorial is to help you build a working GNU Toolchain and if you want, to run a simple Hello World program on an OpenRISC processor with UART debugging
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Basic Custom OpenRISC system
Software Tutorial
Linux
Version 1.00
HOBU-Fund
Project IWT 020079
Title : Embedded systemdesign based upon
Soft- and Hardcore FPGA’s
Projectleader : Ing. Patrick Pelgrims
Projectassistants : Ing. Dries Driessens
Ing. Tom Tierens
Copyright (c) 2003 by Patrick Pelgrims, Tom Tierens and Dries Driessens. This material may be
distributed only subject to the terms and conditions set forth in the Open Publication License, v1.0
or later (the latest version is presently available at http://www.opencontent.org/openpub/).
Page 2 of 8
Purpose of this tutorial is to help you build a working GNU Toolchain and if you want, to run a
simple Hello World program on an OpenRISC processor.
The only thing you need to build a working GNU toolchain is a PC with a Linux operating system. If
you also want to compile and run a simple “Hello World” program, you need of course a working
OpenRISC processor with a debug unit and preferably a UART to have some output. This tutorial
is designed to work with the Basic Custom OpenRISC embedded system, but it can of course be
used with any OpenRISC based embedded system.
Finally, I would like to mention that this tutorial is partially based on the excellent “OR1K uClinux
and simulator installation guide” of Robert Cragie. The original page can be found at
www.asisi.co.uk/or1k.html.
The flow of setting up software for the OpenRISC is:
1. check gcc. if necessary, get gcc source-code and build correct gcc
2. retreive and build toolchain source-code
You should then be ready to retreive and build software to run on the OpenRISC
I Introduction
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