User:Jpintozz

About me

I'm Joe Pintozzi and I will be a senior at Marquette in the Fall of '09. I am currently working towards my bachelor's degree in Computer Engineering. I will be working on the "Xinu Team" this summer in lab 310.

Work

Week of May 18th

• Created user accounts for both Wikis and Trac
• Read through XINU wiki to get background information on projects I will be working on this summer
• Awaiting access to the MSCS network since my account has been disabled
  • Temporary stand-alone account created on Szabo for the time being
• Checked out trunk from subversion, compiled and ran successfully
• Download and review Intel and AMD flash specification PDFs
  • Intel, 41-48
  • AMD, 30 - ?
• Look over TTY code from /tools/console/unix/braches/zlund
• Filled in comments in own tty-*.c code for further clarification

Week of May 25th

• Tweaked tty-bridge code, tested on Morbius
  • Need to throw more data at the serial port, it isn't having a hard time keeping up. Must force write errors......
  • Decreased max bufsize to force tty-bridge to run out of buffer quickly.
    • Write auto-compensates by waiting until there is room in the buffer to write

Week of June 1st

• Went over FOS paper
• Attended weekly 2pm Thursday meeting
  • Afterwards discussed FlashRAM development
• Soldered WRT54GL router
• Made an AMD flash image of chub
• Tested the HDM Debricker on chub
  • Did not break chub, but did not necessarily fix it either....

Week of June 8th

• Modified the hostname of chub from "chub.xinu.mu.edu" to "joe.xinu.mu.edu"
• Flashed chub to original image, if successful the hostname will be changed back to "chub.xinu.mu.edu"
  • Hostname still "joe.xinu.mu.edu". HDM did not work.
• Went over FPGA paper
• Killed chub
  • Searched for Debricking alternatives, HDM seems to be the only one, and v48 is the newest revision
• Started entering AMD Command Codes into flash.h
• Updated trunk-2.0 and created new file - physicalAMD.c

Week of June 15th

• Went over Dingo paper
• Removed Chub, placed Dask back into the JTAG group, tested HDM
  • HDM works! Hostname changed back after flashing. Failure with Chub may be due to an electrical short from a header pin.
• Put Dask back and hook up Davros to the HDM, change hostname and flash

Week of June 22nd

• Flashing did not brick the router, be neither did it change the hostname back
• Attempted to manually input starting address and length of flash memory
  • Same result as before
• Added more commands to the PhysicalAMDControl
• Added more definitions in flash.h for the AMD commands

Week of June 29th

• Presented my flash presentation to the REU students
• Tried different HDM debricking techniques with Davros
  • Unsuccessful so far
• Updated repository with my code
  • Tested to make sure there was compatibility first

Week of July 6th

• Selected and presented the paper "Eliminating the Call Stack to Save RAM"

Week of July 13th

• Went over Augmented Reality paper
• Discovered HDM is not erasing blocks when flashing
• Found branch of HDM called the Tornado MOD
• Hypothesized about why HDM isn't working
• Erased Davros with Tornado
  • Put image back on with HDM

Week of July 20th

• Davros is unstable
• Took most of the week of (1/2 of Tuesday and on)
• Went to Vegas
• Came back with MUCH less than I left with
• Flew on a plane with Brian Rancor

Week of July 27th

• Ryan prepped a JTAG on Mandragora
• Attempted to flash Mandragora after changing the host name, the host name has not changed leading me to believe it was never erased
• Erasing and flashing separately, awaiting results
• Built 'screen' and 'urjtag' on Aneth

Week of August 3rd

• Came in early Monday
• Mandragora does not stop in the same place every time.
  • Bad cable? Defective buffer?