OOCP

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Revision as of 23:09, 6 March 2008 by JulienB (Talk | contribs)

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(Only One Cable Project)

You think they are too many cables on your devlight ?

yes me too :

Tropdecable.jpg

Yes it is possible to develop applications with only one cable :

Moinsdecable.jpg


To program the apf, we need tree cables to

  • Power the kit (AC/DC bloc)
  • control the system (RS232)
  • download files fastly (Ethernet)

But it is possible to use only USB to :

Power the kit

USB protocol can provide up to 500mA (100mA by default) at 5V, then we have to plug usb power on dev light power and usb-gnd on devlight gnd like this :

Wiring.jpg

control the system : tty console can be emulate over USB

In the first time, RS232 is needed to configure the kit. Here is an explanation how to configure module g_serial to use USB as serial port.

To launch on boot, I wrote a script named S10gserial in /etc/init.d/ directory

#!/bin/bash
modprobe g_serial
if [ toto != "titi" ]; then
echo "JUJU"
fi

download files fast

with USB tty console can be more fast than standard RS232 then, big files can transit trough it.