Benutzer:Siro

alias: Patrick
Jabber: siro @ das-labor. org
email: siro @ das-labor. org

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Projekte:
Active projects:

• Laserprojector/lasercurrentsourcev2
• Scannergame

Scheduled Projects:

• laserpcbscanner
• Opentreppenblink
• AtmegaUSBhost
  

einfache i2c Kommunikation:

• Benutzer:siro/i2cprotokoll
  
• Benutzer:siro/modularprojectconcept
  

Finished Projects

• Powermeter
• Lab-irkit2

Interessante Links:
arm-elf-gcc bauen:
Pakete:

• libgmp3-dev
• libmpfr-dev
• flex

$ cd /home/alios/src/toolchain
$ svn co svn://gcc.gnu.org/svn/gcc/branches/gcc-4_4-branch
$ mkdir build-arm-elf/gcc
$ cd build-arm-elf/gcc
$ ../../gcc-4.4-branch/configure --target=arm-elf --prefix=/usr/local/arm-elf --disable-nls --disable-shared --disable-threads --with-gnu-ld --with-gnu-as --disable-multilib --disable-libssp --disable-libmudflap --disable-libgomp --with-dwarf2 --with-newlib -v --disable-werror --with-cpu=cortex-m3 --with-tune=cortex-m3 --with-mode=thumb --enable-target-optspace --with-float=soft --enable-languages=c,c++
[ ... configure output ... ]
$ make all
[ ... build output ... ]

Stromquelle

• LM 350 TO3
• V 4527D
• 2W DRAHT 0,82

ProjectX

• http://www.reinertrimborn.de/weSUEF3.htm

Dvb-t

• RDNG
• Reed-Solomon - outer coder
• outer interleaver
• FEC encoder - inner coder
  • convolutional encoder
    1. code rate 1/2
    2. code rate 2/3
    3. code rate 3/4
    4. code rate 5/6
    5. code rate 7/8
  • puncturing
• inner interleaver
  • demux
  • bitinterleaver
• symbol interleaver
  • hierachical mode - 2 DVB-T streams on 1 Frequency
    1. different modulations possible
    2. different bitrates
    3. different programm
  • non hierachical mode - 1 DVB-T stream on 1 Frequency
• QAM mapper
• inverse FFT
• guard interval
• interpolation filter

Hardware:

• D/A converter
• mixer
• VCO