HOWTO

• now using mew instead of gnus:
• in .emacs

 (autoload 'mew "mew" nil t)
 (autoload 'mew-send "mew" nil t)
 ;; Optional setup (e.g. C-xm for sending a message):
 (autoload 'mew-user-agent-compose "mew" nil t)
 (if (boundp 'mail-user-agent)
     (setq mail-user-agent 'mew-user-agent))
 (if (fboundp 'define-mail-user-agent)
     (define-mail-user-agent
       'mew-user-agent
       'mew-user-agent-compose
       'mew-draft-send-message
       'mew-draft-kill
       'mew-send-hook))

(setq mew-use-master-passwd t)

(autoload 'bbdb-insinuate-mew      "bbdb-mew"   "Hook BBDB into Mew")
(add-hook 'mew-init-hook 'bbdb-insinuate-mew)
(setq bbdb-send-mail-style 'mew)
(setq sc-auto-fill-region-p t)
(setq mew-smtp-user "user@domain")
(setq mew-smtp-server "server")
(setq mew-smtp-auth-list '("LOGIN"))   ; "CRAM-MD5", "PLAIN", and "LOGIN" can be used

and customize mew-field-completion-switch: ("To:" bbdb-complete-name)

• to send an attachment/ make a multipart message:

  C-c C-a
  

and then c to copy file in

• to read an attachment:

  n and then C-c C-e
  

comment out loading twit.el in .emacs and then run (from ~/buff/hip)

make -f org2hpda

C-x r s reg - copy region to register reg

C-x r i reg - insert region from register reg

also numbers in registers (handy for keyboard macros):

C-u num C-x r n reg - store number in register

C-x r + reg - increment

C-x r g reg - insert

(load "~/buff/twit.el") (twit-show-recent-tweets) (twit-follow-recent-tweets)

C-c C-c on headline to add tags

C-c \
C-c / m 

Create a sparse tree with all headlines matching a tags search. With a C-u prefix argument, ignore headlines that are not a TODO line.

• how to prepare a 2x2 A0 PDF using org-mode and pdfnup
  
  • prepare tex using org-mode:

  # Local Variables:
  # org-export-latex-append-header: "\
  # \\usepackage{geometry}
  # \\geometry{verbose,a2paper}
  # "
  # End:
  

  is placed at the end of the org-mode file and we use:

  M-x normal-mode
  

  to re-read the local variables

  then export C-c C-e to PDF as usual.

  • now we have A2 PDF which we can place four sheets on one page with:

    pdfnup island_forpdf.pdf --nup 2x2
    

  • which gives us an A2 PDF also but with a grid of 2x2 pages on each page.
  • enlarge to A0 using acroread, print to file and custom size

# Local Variables:
# org-export-latex-append-header: "\
# \\usepackage{geometry}
# \\usepackage{times}
# \\usepackage{pslatex}
# \\geometry{verbose,a2paper}
# "
# End:

and see also:

http://www.ces.clemson.edu/~regroff/content/latex2pdf/

http://do.whileloop.org/soft/tricks/pdflatex-fonts.php

• how to embed bmp images
  

  NOT! - convert to pdf/png

• how to make page breaks
  

  embed:

  \begin{test}
  \pagebreak
  \end{test}
  

• how to embed other pdfs
  

  #+ATTR_LaTeX: page=4,width=5cm
  [[file:stegsx.pdf]]
  

  or

  with

  \\usepackage{pdfpages} 
  

  \includepdf[pages=1-8]{/root/projects/magnetometer/protonmagnetometer.pdf}
  

for use with agenda - C-c a - can have several org-mode files into agenda

eg.

C-c . - add date as below and it takes title from:

C-c a n - whole year

• other commands
  
  • Shift-arrows to change date elements

    M-S RET - insert TODO item
    

    C-c C-d - insert deadline
    

    C-c [ - add file to agenda list
    

    C-c ] - remove file
    

    C-c C-t - toggle status of TODO
    

• commands
  

  v - view mode (eg. week, month, year, insert diary entries)
  

  RET - goto relevant org file
  

/newlife@ftp.1010.co.uk:/user/htdocs/1010/

• fixed and uploaded new jack.el

(jack-start)

run also: jack_simple_client as fake and disconnect all

while true; do mplayer /root/dump/test.wav -ao jack:port=simple,name=monk done

to prevent straight connection mplayer

(jack-list)

(jack-ports "monk")

(jack-get-port-connections "monk" 0) ????

\bibliographystyle{plain}
\bibliography{notes}

… is at the end of the document

We also need the following in .emacs:

(defun org-mode-reftex-setup ()
(load-library "reftex")
(and (buffer-file-name)
(file-exists-p (buffer-file-name))
(reftex-parse-all))
(define-key org-mode-map (kbd "C-c )") 'reftex-citation)
)

(add-hook 'org-mode-hook 'org-mode-reftex-setup)

(require 'org-exp-bibtex)

(require 'org-latex)
  (setq org-export-latex-classes
        (cons '("article"
                "\\documentclass{article}
  \\usepackage{amsmath}
  \\usepackage{amssymb}
  \\usepackage{longtable}
  \\usepackage{float}
  \\usepackage{wrapfig}
  \\usepackage{soul}
  \\usepackage{hyperref}"
                ("\\section{%s}" . "\\section*{%s}")
                ("\\subsection{%s}" . "\\subsection*{%s}")
                ("\\subsubsection{%s}" . "\\subsubsection*{%s}")
                ("\\paragraph{%s}" . "\\paragraph*{%s}")
                ("\\subparagraph{%s}" . "\\subparagraph*{%s}"))
              org-export-latex-classes))

  (setq org-latex-to-pdf-process
        '("pdflatex -interaction nonstopmode %b"
          "bibtex %b"
          "pdflatex -interaction nonstopmode %b"
          "pdflatex -interaction nonstopmode %b"))

An example from notes.bib:

@Book{pynchon1966,
 author = {Pynchon, Thomas},
 title = {The Crying of Lot 49},
 publisher = {Lippincott},
 year = {1966},
 address = {Philadelphia},
 isbn = {0397004184}
 }

which we can cite with: C-c C-)

• links:
  

  http://www.mfasold.net/blog/2009/02/using-emacs-org-mode-to-draft-papers/

  http://article.gmane.org/gmane.emacs.orgmode/2406/match=bibliography

  http://www.brl.ntt.co.jp/people/leroux/bibtex-mode.html

  http://bytebaker.com/2009/06/26/software-to-keep-your-pdfs-and-papers-organized/

  http://andy-roberts.net/misc/latex/latextutorial3.html

#+LaTeX: \setlength\parskip{5mm} // for spacing between paragraphs

C-u 0 C-l - puts line to top of screen

C-x C-f /ftp:newlife@1010.co.uk:/

(make-comint "sniff" "/root/sniffeur.py")

M-x image-dired-dired-display-image

C-x C- - = - smaller and larger fonts

Gnus: T T - turn off threading

C-c C-s C-d - gnus summary sort by date

flush the agent cache M-x gnus-agent-flush-cache RET M-x gnus-agent-expire[-group] RET

avr-gcc -Os -mmcu=atmega8 -Wa,-gstabs -I/usr/lib/avr/include/avr/ -o test.elf test.S

avr-objcopy -j .text -j .data -O ihex test.elf test.hex

avr-objdump -S test.elf

(if we compile with -g // debugging // and not -Os (for size optimisation)??)

avr-gcc -g -mmcu=atmega8 -I/usr/lib/avr/include/avr/ memtest.c -o memtest.elf

also to note:

avr-gcc -g -mmcu=atmega8 -Wl,-Map,demo.map -o demo.elf demo.o

 26c: ff cf           rjmp    .-2             ; 0x26c <__stop_program>

• The .text Section
  

  The .text section contains the actual machine instructions which make up your program. Includes:

• The .initN Sections
  

  init code

  • The .finiN Sections
    

    exit code

• The .data Section
  

  This section contains static data which was defined in your code.

• The .bss Section
  

  Uninitialized global or static variables end up in the .bss section. Includes:

  • The .noinit Section
    
• The .eeprom Section
  
• avr-size
  

  The avr-size program (part of binutils), coming from a Unix background, doesn't account for the .data initialization space added to the .text section, so in order to know how much flash the final program will consume, one needs to add the values for both, .text and .data (but not .bss), while the amount of pre-allocated SRAM is the sum of .data and .bss.

• malloc?
  

  The variables __malloc_heap_start and __malloc_heap_end can be used to restrict the malloc() function to a certain memory region. These variables are statically initialized to point to __heap_start and __heap_end, respectively, where __heap_start is filled in by the linker to point just beyond .bss, and __heap_end is set to 0 which makes malloc() assume the heap is below the stack.

  • what is the heap?
    

    The standard RAM layout is to place .data variables first, from the beginning of the internal RAM, followed by .bss. The stack is started from the top of internal RAM, growing downwards. The so-called "heap" available for the dynamic memory allocator will be placed beyond the end of .bss.

  • note from scrying makefile:
    

    EXTERNAL_RAM = -Wl,-Tdata=0x801100,–defsym=__heap_end=0x80ffff

    and we use memory pointer directly from 1100 - how do we avoid writing over variables (in serialtest.c case).

  • TODO test serialtest code in scrying
    

    in new code - also PORTE is set strangely (for gplog to 0x00 , for main log to 0xff)

    same in noise2.c where we write to 1100+ and don't set PORTE

    possible answer as using:

    avr-size noise2.o
    

    we see:

       text    data     bss     dec     hex filename
       8336       4      10    8350    209e noise2.o
    

    how can we see what is in data and bss (-s switch)?

    avr-objdump -sh -S noise2.o
    

    gives:

    0000 0ad7233c
    

    but in the case of serialtest.o we have 621 bytes of data which is all text messages (for help and so on) which we know doesn't get overwritten???

    only conclusion is that data segment is not moved by Makefile (or possibility that as it is stored in ROM/FLASH????)

http://www.nongnu.org/avr-libc/user-manual/FAQ.html

http://www.nongnu.org/avr-libc/user-manual/malloc.html#malloc\_extram

http://www.nongnu.org/avr-libc/user-manual/mem\_sections.html

http://www.nongnu.org/avr-libc/user-manual/group\_\_demo\_\_project.html

http://ruinwesen.com/blog?id=70

xset s off

and edit /etc/X11/xorg.conf and restart X:

Section "ServerFlags"
Option "BlankTime" "0"
Option "StandbyTime" "0"
Option "SuspendTime" "0"
Option "OffTime" "0"
EndSection

• edit /etc/inittab with:

id:5:initdefault:
[...]
x:5:once:/bin/su PREFERED_USER -l -c "/bin/bash --login -c /usr/bin/startx >/dev/null 2>&1"

• .xinitrc example: machine 1

xset s off
xmodmap /root/.Xmodmap
exec awesome &
exec xterm -maximized -exec watch tail /var/log/syslog &
sleep 4s
exec xterm -exec top &
exec xterm -exec /root/test.sh

machine 1 is now running minicom… (usb serial must be plugged in before booting)

• .xinitrc example: machine 2

killall -9 evilwm
xset s off
exec evilwm &
exec wireshark -i eth5 -f "icmp" -k &
sleep 20s
exec xterm -geometry 80x20+0+0 -exec minicom

• open an xterm with dmesg showing but not closing - sleep for 1000 days

#!/bin/bash
dmesg
sleep 1000d

• edit /etc/rc.local for other post-boot options

• for dhcp

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface - use DHCP to find our address
auto eth0
iface eth0 inet dhcp

• for static

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto eth0
iface eth0 inet static
 address 192.168.1.90
 gateway 192.168.1.1
 netmask 255.255.255.0
 network 192.168.1.0
 broadcast 192.168.1.255

with address of switch:

arpspoof -i eth0 192.168.1.1

tcpdump -s 0 -w - icmp> /dev/dsp

both in /etc/rc.local

wireshark -i eth5 -f "icmp" -k -w test -b files:10 -b duration:10

• older
  

  jekyll-

  i_am-

  /dev/mem | strings | espeak --stdout | ./i_am 4 2 1 > /dev/dsp
  

• more recent
  

  evp-

  cat /dev/dsp | ./evp 1 32 8000 1 > ~/pipe
  play -t raw -r 8000 -u -b -c 1 pipe
  

  self-

• tee:

  tcpdump -s 0 -w - | tee /dev/dsp | devdisplay 240 240 2
  

• turn off swap

  swapoff -a
  

• play a pipe

  play -t raw -r 44100 -u -b -c 1 pipe
  

for example from:

nice -n -10 top -d.1 | tee pipe

[for top always use 44100]

top commands:

A,M,N,P,T - alt display, sort by memory, PID, CPU, time

k - prompt to kill a PID

• espeak:

  cat /dev/mem | strings | espeak --stdout > /dev/dsp
  

or for correct speech:

cat /dev/mem | strings | espeak --stdout > ~/pipe
play -t raw -r 22050 -u -1 -c 1 pipe

maybe insert evp process in there

• dev/mem// use of tee for multiple processes

  cat /dev/mem | tee >(devdisplay 240 240 1) | strings | espeak --stdout | ./jekyll 2 3 > /
  

stty -F /dev/ttyUSB0 115200

START: stty, swapoff, old kernel

swapoff -a
stty -F /dev/ttyUSB0 115200

5 acts:

1- process table and xxxx….sh yyyyy….sh

nice -n -10 top -d.1 | tee pipe
play -t raw -r 44100 -u -b -c 1 pipe

also with: A,M,N,P,T - alt display, sort by memory, PID, CPU, time (and G for group)

2- evp/i_am/speech somehow

cat /dev/mem | strings | espeak --stdout > /dev/dsp
play -t raw -r 44100 -u -b -c 1 pipe

3- self

./self > /dev/dsp

4- code rocks

cat /dev/mem > /dev/ttyUSB0
cat /dev/ttyUSB0 > /dev/dsp

5- rock off:

cat /dev/mem > /dev/ttyUSB0
cat /dev/ttyUSB0 | tee /dev/dsp > /dev/mem