opus:fall2013:bkrishe3:journal

Table of Contents

Data Communications Journal
HPC Experience I Journal

Data Communications Journal

August 28, 2013

Started to learn about the rasberry pi
with the new modern age it has become harder and harder to do simplier things like send a single bit over a line
i acually have never used a rasberry pi before so this will be a different experience

September 5, 2013

Learning about I/O pins today and tring to program LEDs to work with them
It should be a lot of fun

September 9, 2013

Finally got the led to blink, had to ask josh which pins to use cause the diagram in backwards

September 12, 2013

Started wiring up the raspberry pi to make a binary calculator with led lights
Tring to not get all of the cables crossed

September 13, 2013

Started programming in low level C from the tutorials

October 24, 2013

Wow its been a while…
Been working with morse code to send messages over wires

HPC Experience I Journal

September 04, 2013

Started checking the computers that were here during the flood to check if they still worked or not
If we can continue to use these computers we don't have to find new ones and configure them
Some of these computers are a challenge to open

October 17, 2013

Found out how to run a program in one directory from another directory
You have to use parenthesis to sub-shell to spawn
More can be found from here Run a program from a different directory

October 18, 2013

Accidentally nuked /tmp in ubuntu and made the whole system do a login loop
In order to fix this i had to do a few steps while in a tty session
1. mkdir /tmp
2. chmod 777 /tmp
3. chmod +t /tmp
Exit tty and login and your good to go

October 23, 2013

Been getting plagued with this message do_IRQ: 0.107 No irq handler for vector (irq -1) so i went in search of an answer to make it go away
The forum i went to stated to edit /etc/default/grub as superuser and it seems to have worked
I had to edit the file and change GRUB_CMDLINE_LINUX=“” to GRUB_CMDLINE_LINUX=“pci=nomsi,noaer”

November 20, 2013

Started dabling around with how to write apps for my phone
It would be cool to write your own apps rather than pay someone else to do it.

opus/fall2013/bkrishe3/journal.txt · Last modified: 2013/11/20 16:58 by bkrishe3