If you are running Linux on your machine, in particular Ubuntu, it can be tedious if you just quickly want to find out the version of the Kernel you are running and which Ubuntu release you are running (including it's nickname/codename!).
So here are two quick ways of getting the information from the command line:
lsb_release -a
... will give you a good idea of which version you are running, e.g.:
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 9.10
Release: 9.10
Codename: karmic
... and if you want to find out more about the kernel version, this can be done via typing
uname -a
Showing posts with label ubuntu. Show all posts
Showing posts with label ubuntu. Show all posts
Tuesday, 6 July 2010
Wednesday, 2 June 2010
Nexys2 - Configure Via USB
The Nexys2 is a low-cost FPGA development board from Digilent. It features a Xilinx Spartan-3E FPGA (500K or 1200K gate version), 16 MByte Flash/SDRAM, USB and an RS232.
The board can be powered via USB, which makes it quite convenient to use. The board can be configured in two different ways:
1.) Using a Xilinx Platform Cable
- attach cable (separade leads) to J5.
- pins 1 to 6: TMS, TDI, TDO, TCK, GND, VREF
Using the platform cable provides convenient access to the FPGA + attached SPI flash as well as the platform flash (PROM) using the impact tool from the Xilinx suite.
2.) Configuring via USB
... which does not require the expensive platform cable!
In case you run Windows, just download the Digilent Adept tool from the digilent website.
In case you run Linux you are fine thanks to the guy who wrote a nice tool called nexys2prog. It is fairly straight forward to set it up and works like a charm (example for Ubuntu / Debian):
apt-get install fxload
apt-get install libftdi
download UrJTAG and install it via:
./configure
make
make install
Now you should be ready to run the nexys2prog configuration script
nexys2prog myfile.bit
It will detect and configure the Nexys2 board when it is connected to the USB port. In order to do so, custom firmware is loaded into the board's USB controller. Unplug and replug the board in order to restore the original configuration, which is required to use Digilent Adept.
The board can be powered via USB, which makes it quite convenient to use. The board can be configured in two different ways:
1.) Using a Xilinx Platform Cable
- attach cable (separade leads) to J5.
- pins 1 to 6: TMS, TDI, TDO, TCK, GND, VREF
Using the platform cable provides convenient access to the FPGA + attached SPI flash as well as the platform flash (PROM) using the impact tool from the Xilinx suite.
2.) Configuring via USB
... which does not require the expensive platform cable!
In case you run Windows, just download the Digilent Adept tool from the digilent website.
In case you run Linux you are fine thanks to the guy who wrote a nice tool called nexys2prog. It is fairly straight forward to set it up and works like a charm (example for Ubuntu / Debian):
apt-get install fxload
apt-get install libftdi
download UrJTAG and install it via:
./configure
make
make install
Now you should be ready to run the nexys2prog configuration script
nexys2prog myfile.bit
It will detect and configure the Nexys2 board when it is connected to the USB port. In order to do so, custom firmware is loaded into the board's USB controller. Unplug and replug the board in order to restore the original configuration, which is required to use Digilent Adept.
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