On Sheeva and FTDI [aka "OBDPro"]

chunkyks · 07-21-2009, 12:49 AM

EDIT: This is resolved. Read down the bottom to find the actual working code.

Gary (-;

[old post left here for posterity]

As promised, I threw together a quick tool. It's not quite working yet [something for which I would be greatly appreciative if someone could help me with], but:

http://icculus.org/obdgpslogger/ftdipty.c.gz

Download, extract. Make sure to install libftdi-dev plus dependencies on your sheeva. Compile with

Code:

gcc -o ftdipty ftdipty.c -lftdi

Now the weird bit, which I hope someone here can help me with. When I run it, obdgpslogger doesn't work with it. If I open minicom on it [use minicom -p /dev/pts/whatever-ftdipty-said], then it works, but I have to hit enter twice each time, and it seems pretty slow. Can anyone suggest what might be happening?

For anyone not clear: This is a small tool to stop you from needing to re-flash the kernel on your sheevaplug just to use an OBDPro device [or anything else using ftdi].

Thanks,
Gary (-;

chunkyks · 07-21-2009, 02:31 AM

*mostly* fixed it. Still not quite there, though. Please lemme know if anyone gets the opportunity to try it.

Gary (-;

chunkyks · 07-21-2009, 01:14 PM

I posted in the sheevaplug forum on this very topic

Gary (-;

chunkyks · 10-02-2009, 12:36 AM

Just bumping. It's working now, and in obdgpslogger's repo as "obdftdipty"

Code:

chunky@chunkplug:~/src/obdgpslogger$ ./bin/obdftdipty 
./bin/obdftdipty successfully opened pty. Name: /dev/pts/0

Now run obdgpslogger with "-s /dev/pts/0" [to match the output of obdftdipty] and you'll be good to go. The process is a bit manual, still, but at least it *works*.

Gary (-;

chunkyks · 10-02-2009, 12:54 AM

Also, if anyone tries it and suffers permission problems, check 40-ftdiperm.rules in src/ftdipty

Gary (-;

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