Com ports

mouha
Hi folks,

I looked at the last mini2440_manual but couldn't find out if it's safe to
plug the 5V GPS (Holux) directly onto CON1 or CON2 or CON3

someone can tell about it ?

PS : if someone has already done GPS with mini2440, I would also apreciate

Renato
You must first verify which interface is available in your GPS module. Some
of them have both RS232 and TTL.
You can use the signals at CON1..3 if your GPS has TTL compatible
interface. Stay away of the DB9 connector (COM0) though as this one makes
use of the RS232 level translator.
I took a look at Holux website and they have a lot of models. Which one is
yours?

mouha
Yes I should add precisions :

" The GPS module consists of SiRF star III chipsets technology, LNA and
proprietary software."

A GR 87 from Holux 
[url]http://en.stkshop.com/Components/GPS-module/HOLUX-GR-87.html[/url]
and 

[url]http://www.holux.com/JCore/UploadFile/2305947.pdf[/url]

At the end of the Spec it's told about both CMOS 3.0 and RS-232 but just
before "the ouput signal is CMOS 3.0 positive signal" ...

skip2816
Hi Mouha,

I use GPS, but an 'USB GPS mouse'. Usage is very easy, pluging into USB and
I can read the NMEA sentens. No worry whith voltage level etc. 
The only thing that I had to do was compiling a new kernel with USB modem
driver activated.

skip

Errol
Hi mouha,

Yes, you can get connect module directly to CON1, CON2 or CON3. Those are
CMOS 3.3V which should be fine with your 3V module.

I also run a ublox LEA-4A module from one of those connectors...

Thank you,
Errol

mouha
Skip2816 : I will try this interesting USB adaptation as soon as I get the
right connector.

Errol : your module is really good, in addition you have USB output to use.

Do you use any NMEA parser / software or is it your  own ?

Thanks to you both for the answers.