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Archive for January, 2015

Xilinx ISE on Ubuntu

January 26, 2015 Leave a comment

This post shall contain the issue I faced and solutions, when trying to use Xilinx ISE on Ubuntu(11.04). Shall keep updating as and when I encounter problems.

ISim Simulator – Link issue

The installation and the synthesis were trouble free. Had a bit issue with simulation. The simulation was not getting compiled. It was reporting “FATAL_ERROR:Simulator:Fuse.cpp:500:1.133 – Failed to compile generated C file isim/testbench_isim_beh.exe.sim/work/<filename>”. First step was to enable the more detailed error report by adding the “-v 1” option to the simulation build command. From the detailed log it turns out that the ‘fuse simulator’ was picking up the wrong libstdc++.so.6 from /opt/Xilinx/14.7/ISE_DS/ISE/lib/lin instead of /usr/lib/i386-linux-gnu. Issued the following commands as suggested by the 4th post at this archlinux forum.

From /opt/Xilinx/14.7/ISE_DS/ISE/lib/lin,

mkdir backup
mv libstdc++.so.6 backup
ln -s /usr/lib/i386-linux-gnu/libstdc++.so.6 /opt/Xilinx/14.7/ISE_DS/ISE/lib/lin/libstdc++.so.6

That solved the simulation issue.

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Categories: Log Tags: ,

On the human need for happiness

January 4, 2015 Leave a comment

Life seems like a never-ending pursuit for happiness. Modern man never finds it happy in a steady state no matter how good the state is. Seems it is very important for the existence that there is always something that worries him. He always want something to be pursued, something to worry about..

Let me make myself clear what I mean by happiness. I am not referring to the short lived bliss that you get when you listen to a great piece of music, or enjoying a great piece of art. Rather I am considering the overall state of mind over a longer period of time, – say a month. Such overall feelings will surely be the result of thought that are persistent.

May be everyone ‘happy’ must be worrying about something. And I don;t think the unhappy mind doesn’t have any worry either. So everyone has something to worry. The things that keeps one worrying about should be the ones that determine greatness from mediocrity. (Greatness and mediocrity when measured by the contributions to the society.)

Other animals should be happy once their fundamental physical needs and emotional needs are satisfied. So what makes us go beyond the others. Is it something social? Is it something to do with our ability to think with language? Is it the unique identity, and a need to be unique; that the society instills in us through the many examples in history, and of own lineage that makes us want to be unique? What exactly is the fuel for the pursuit for happiness?

Is there a difference in the attitudes of various cultures in this regard? Is there a difference in terms of age? Is it really necessary to have a purpose in life?