===== I2C Port Expander am USB Port =====
==== Quellen ====
  - [[http://www.ftdichip.com/Drivers/D2XX.htm|http://www.ftdichip.com/Drivers/D2XX.htm]]
  - [[http://www.ftdichip.com/Support/SoftwareExamples/MPSSE/LibMPSSE-I2C.htm|http://www.ftdichip.com/Support/SoftwareExamples/MPSSE/LibMPSSE-I2C.htm]]
  - [[http://www.ftdichip.com/Support/Documents/ProgramGuides/D2XX_Programmer%27s_Guide%28FT_000071%29.pdf|http://www.ftdichip.com/Support/Documents/ProgramGuides/D2XX_Programmer%27s_Guide%28FT_000071%29.pdf]]
  - [[http://www.ftdichip.com/Support/Documents/AppNotes/AN_177_User_Guide_For_LibMPSSE-I2C.pdf|http://www.ftdichip.com/Support/Documents/AppNotes/AN_177_User_Guide_For_LibMPSSE-I2C.pdf]]
  - [[http://tenthousandfailures.com/blog/2014/2/16/ftdi-ft2232-mpsse-basics|http://tenthousandfailures.com/blog/2014/2/16/ftdi-ft2232-mpsse-basics]]

==== Entwicklungssystem ====
  * DELL Optiplex 745, 64-bit
  * Ubuntu 12.04.5 LTS
  * FTDI Modul: FT4232H Mini Module, siehe [[http://www.ftdichip.com/Products/ICs/FT4232H.htm|hier]] und [[http://shop.clickandbuild.com/cnb/shop/ftdichip?productID=227&search=mini+module&op=catalogue-product_info-null|hier]]
  * NXP PCA9506 40-bit I2C-bus Port Expander

==== Build-Umgebung ====
<code>
apt-get update
apt-get upgrade
apt-get install mc kdiff3 git dos2unix
</code>

==== D2XX Treiber von FTDI ====
Installation laut Readme.txt (siehe [1])
<code>
wget http://www.ftdichip.com/Drivers/D2XX/Linux/libftd2xx1.1.12.tar.gz
tar xfz libftd2xx1.1.12.tar.gz
sudo su
cd release/build/x86_64/
cd release/build/x86_64/
chmod 0755 /usr/local/lib/libftd2xx.so.1.1.12
ln -sf /usr/local/lib/libftd2xx.so.1.1.12 /usr/local/lib/libftd2xx.so
exit
cd examples
make -B
</code>

FTDI Mini Modul per USB anschließen und evtl. geladene Treibermodule anschließend wieder entfernen.
<code>
rmmod ftdi_sio
rmmod usbserial
</code>

<code>
wget http://www.ftdichip.com/Support/SoftwareExamples/MPSSE/LibMPSSE-I2C/libMPSSE-I2C.zip
unzip libMPSSE-I2C.zip
cd Release-I2C/samples/
chmod +x b.bash
!! -ldl argument at end of gcc line!!
</code>

<code>
mkdir FTDI_FT2232_MPSSE_Basics
cd FTDI_FT2232_MPSSE_Basics
make clean
make all
</code>

<code>
wget http://www.ftdichip.com/Support/SoftwareExamples/MPSSE/LibMPSSE-I2C/LibMPSSE-I2C_source.zip
unzip LibMPSSE-I2C_source.zip
cd LibMPSSE-I2C

</code>