garmin 76 and ipaq 3970

[donny]

Hi

I am having problems getting at connection between the two on a seriell cable (with a gendre changer). The Garmin is set to NMEA 4800 and the tomtom GPS the same -but no connection. I have ROM 2.10. Cant get the GPS on the route planner either. What is the problem. Greateful for any input.

[Pc-Mobile]

It is almost definitely one of the 2:



1. You do not have a "proper" null modem adapter, which is need between the 2 serial cables. A mere gender changer will not do.



2. You have a keyborad instlled? If so you have to disable/remove it.
_________________
Pc-Mobile
http://pc-mobile.net/gps.htm

[donny]

Thank you for your prompt answere.

I am on my way to buy a real null modem adapter, and hope it will help.



Donny

[donny]

That was it..

Thanks again. Donny

[Nightowl]

I've just connected my Garmin to my ipaq.

I used the existing leads with a serial connector.

A gender bender will not work. You have to make sure that there is a swapping of connectors.

essentially pin 5 on both is earth

pin 2 has to cross- over to pin 3 on the other serial connector and pin 3 to pin two.

As I understand it, if you don't then the transmit and the receive wires conflict.... so no connection.



You can buy ready made cables that go from the ipaq to the gps.

I might do that yet... I'm sick of all the wires that you have to have laying about.



hope it helps.

[DavidW]

As PC-Mobile correctly said, you need a "null modem", not just a gender changer.



So far as ready made cables go, he's one of the biggest vendors and most seem delighted with his products.







David

We see you’re using an ad-blocker. We’re fine with that and won’t stop you visiting the site.
Have you considered making a donation towards website running costs?.
Or you could disable your ad-blocker for this site. We think you’ll find our adverts are not overbearing!