Downloads
This page has links to downloadable components related to the VL2
project, including the vlab and vlabif Python modules, vlabifhw and the
debugging component, and the mini Linux distribution for the FX12
mini module. All of these components are free software (using
the FSF
definition of that term). VL2 does have some non-free components
which are not distributed.
vlab module
The vlab module
implements a client for VL2 services. It is written
in Python. It has at least
two additional dependences:
- Twisted Python version 8.1
or higher, with the Conch package.
This is needed because the
vlab module uses the Twisted framework for asynchronous programming.
Conch is used to make SSH connections.
- The Conch package requires the pycrypto module.
- On Windows, there is an additional (hidden) dependence on the
Python Win32 Extensions
module. Some of the required features do not work without this.
You can download the vlab module here:
- vlab-0.3.tar.gz
Python distutils installer; requires installation as root/administrator.
This component is released under the GPLv2 licence.
- vlab.zip
Standalone version; no installation required.
This component is released under the GPLv2 licence.
FX12 mini Linux distribution
The FX12 FPGA mini module is used in VL2
as a board server. The FX12 FPGA runs PPC Linux
which boots from Flash memory. All of the software is free, with the
exception of the VL2 board server program
which runs entirely in user space. (This is not included in any
of the downloads.)
The software and hardware designs are not specific to VL2. They can
be used for any Linux project on the Avnet FX12 mini module
(Avnet's site)
but they may also work on other types of FPGA, particularly those
with the Xilinx tri-mode Ethernet MAC. Here is the source code:
- fx12-linux-hardware.zip -
FX12 Mini Module Hardware Project for Xilinx EDK
version 10.1 service pack 3.
See the hardware documentation for
more information.
- ihex_boot.c -
PowerPC boot loader (boots from Flash or Intel Hex records received via
serial connection). This is GPLv2 licensed.
- fx12-linux-software.zip -
Linux kernel, buildroot and build scripts to match the hardware project.
This component is (mostly) released under the GPLv2 licence. (Some
of the buildroot components have other free software licences, e.g.
zlib.) The upstream Linux kernel was taken from
http://git.xilinx.com/, a good
source for Linux kernels with Xilinx drivers.
See the software documentation for
more information.
Some binaries are also available for testing purposes (the usual
GPL warnings about "no warranty" apply here):
- fx12.bit.zip -
Demonstration bit file.
- zImage.hex.zip -
compiled kernel and root file system in Intel Hex record form.
Use a serial terminal to send this file in
ASCII mode to the serial port after the boot loader (in ROM)
has executed.
vlabif/vlabifhw
The vlabifhw device provides a way
to multiplex many connections to a hardware device within an
FPGA, and includes a debugging device
for resolving problems. These components are controlled by
drivers in the vlabif module. All of
these components are independent of VL2; a local serial port
can be used in addition to a VL2 connection.
- vlabif.zip - contains
vlabif, vlabifhw, and the debugging device.
Standalone version - no installation required.
This component is released under the GPLv3 licence.
- vlab-0.3.tar.gz
Python distutils installer; requires installation as root/administrator.
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Copyright (C) Jack Whitham 1997-2010
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