Garmin serial cable

Discussion related to the Garmin GPSMAP 66 series GPSr
Art
Posts: 37
Joined: Sat Nov 10, 2018 9:14 am

Garmin serial cable

Post by Art » Sat Jun 01, 2019 3:29 am

Hi :)
I don’t know if you’d call it an issue, but I wish the Garmin external power/serial data cable worked with the 66.
It supports the 64 and Oregons, and several others, but even with mini to micro USB adapter, no go with the 66.

If there’s some request list, I’d appreciate it being added. I assume the hardware is there to support it.
Cheers, B.

gpsrchive
Site Admin
Posts: 376
Joined: Fri Jan 20, 2017 11:29 pm

Re: Garmin serial cable

Post by gpsrchive » Sat Jun 01, 2019 6:09 am

Do you have the part number for the cable?

gruen
Posts: 4
Joined: Sat May 25, 2019 6:23 pm

Re: Garmin serial cable

Post by gruen » Sat Jun 01, 2019 7:48 am

You must use a full 5 pin adapter. My selfmade works.

Art
Posts: 37
Joined: Sat Nov 10, 2018 9:14 am

Re: Garmin serial cable

Post by Art » Sat Jun 01, 2019 8:11 am


gpsrchive
Site Admin
Posts: 376
Joined: Fri Jan 20, 2017 11:29 pm

Re: Garmin serial cable

Post by gpsrchive » Sat Jun 01, 2019 1:12 pm

gruen wrote:
Sat Jun 01, 2019 7:48 am
You must use a full 5 pin adapter. My selfmade works.
Can you elaborate on what you have done to make this work?

Are you aware of any off the shelf micro-USB to mini-USB adapters that work out of the box?

Thank You!

Art
Posts: 37
Joined: Sat Nov 10, 2018 9:14 am

Re: Garmin serial cable

Post by Art » Sun Jun 02, 2019 1:18 am

It doesn’t work is the point :D at least for the 66. It isn’t supposed to, but I’d like ti supported.
I thought the 66 wasn’t on the list of supported devices simply because it has micro USB connector,
but that’s not the case. Even with mini->micro USB adapter it doesn’t work.

For a compatible device (such as 64), you plug it in, power the GPSr from the cable.
set interfece in the System menu to NMEA, and away you go.

EDIT,,,
Having read the above reply, I’ll test continuity for all pins. I know power and data are connected.

Art
Posts: 37
Joined: Sat Nov 10, 2018 9:14 am

Re: Garmin serial cable

Post by Art » Sun Jun 02, 2019 1:32 am

Ok the outer sheath isn’t connected straight through on my adapter.
Will report back when it’s sorted.

gpsrchive
Site Admin
Posts: 376
Joined: Fri Jan 20, 2017 11:29 pm

Re: Garmin serial cable

Post by gpsrchive » Sun Jun 02, 2019 3:59 am

This will be excellent information for the wiki when it is resolved!

Art
Posts: 37
Joined: Sat Nov 10, 2018 9:14 am

Re: Garmin serial cable

Post by Art » Sun Jun 02, 2019 9:39 am

I think now that gruen was talking about the extra pin for USB OTG, which the serial cable does have, and is connected.
The sheath should be connected too, but it would probably still work without it.

I “think” I’ve removed the potting without ruining it.

There’s nothing proprietary in the cable’s encapsulated PCB. It’s an Intersil serial transceiver, and step down regulator for the power supply.

gruen
Posts: 4
Joined: Sat May 25, 2019 6:23 pm

Re: Garmin serial cable

Post by gruen » Sun Jun 02, 2019 4:33 pm

The Serial Data/Power Cable 010-11131-00 have a 12k resistor between pin 4 and pin 5, almost other have a short connection.

The NMEA works only with this 12k resistor.

https://pinouts.ru/PortableDevices/mini ... nout.shtml
https://pinouts.ru/PortableDevices/micr ... nout.shtml

Can any body test RTCM?

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