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#38366 - 18/09/2001 05:53 Re: gm steering wheel SG1 with radio module [Re: Dearing]
smu
old hand

Registered: 30/07/2000
Posts: 879
Loc: Germany (Ruhrgebiet)
Hi.

It certainly looks as if this could be done.
I would love to see the specs for the tuner interface connector on the sleds wiring harness.

cu,
sven

proud MkII owner (12GB blue/green/smoked, was #080000113 is #090001010)
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#38367 - 18/09/2001 06:07 Re: gm steering wheel SG1 with radio module [Re: smu]
altman
carpal tunnel

Registered: 19/05/1999
Posts: 3457
Loc: Palo Alto, CA
One important thing is to put current limiting resistors in the TX/RX path; the tuner module has these internally and later (mk2a) players have them on the main board. Without these, nasty things can happen (latchup-type things) when the player is inserted/removed. 10k in series is just fine and won't affect the workings of the port at all.

Hugo



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#38368 - 18/09/2001 12:16 Re: gm steering wheel SG1 with radio module [Re: altman]
tms13
old hand

Registered: 30/07/2001
Posts: 1115
Loc: Lochcarron and Edinburgh
Thanks for the detail, Hugo - this may be useful if I need to make my own convertor.

Just one clarification, on the hardware side - IIRC, it's a mono 3.5mm jack plug, and you say the tip is 5V through 22K; is the ring grounded, or do we use chassis ground? And how does the tuner read the shift button - is that through the ring? (Oops, that's more than one question - sorry!)

--
Toby Speight - 040103385
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Toby Speight
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#38369 - 18/09/2001 12:19 Re: gm steering wheel SG1 with radio module [Re: smu]
tms13
old hand

Registered: 30/07/2001
Posts: 1115
Loc: Lochcarron and Edinburgh
In reply to:

I added a section on the stalk interface to my empeg tweaking page at http://www-new.incase.de/framed/empeg/tweak.html#tuner, and hope that I got all the info in there right.




Great stuff, Sven.

Except for the broken "last-modified" at the foot

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Toby Speight - 040103385
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Toby Speight
030103016 (80GB Mk2a, blue)
030102806 (0GB Mk2a, blue)

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#38370 - 18/09/2001 15:14 Re: gm steering wheel SG1 with radio module [Re: tms13]
altman
carpal tunnel

Registered: 19/05/1999
Posts: 3457
Loc: Palo Alto, CA
It's a stereo jack; the middle ring is the "shift" control (either 5v or 0v).

The ring furthest from the tip is ground, yes.

Hugo



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#38371 - 19/09/2001 03:21 Re: gm steering wheel SG1 with radio module [Re: tms13]
smu
old hand

Registered: 30/07/2000
Posts: 879
Loc: Germany (Ruhrgebiet)
Great stuff, Sven.

Thanks.

Except for the broken "last-modified" at the foot

Fixed that.

cu,
sven

proud MkII owner (12GB blue/green/smoked, was #080000113 is #090001010)
_________________________
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#38372 - 20/09/2001 09:10 Re: gm steering wheel SG1 with radio module [Re: altman]
gogee2000
new poster

Registered: 21/09/2000
Posts: 40
It worked! I now have full control from my steering wheel. I am still having one problem which I do not think is the empeg. The volume up button is very flaky. I've tested the voltage drop on the control line entering the SG1 and that seems good. I haven't tested the output on the miniplug which goes into the radio module. So I may have a bad SG1 module. I'll try to dork around with that this weekend. But, it does work occationally. I can, however, get volume up by pressing the volume down button once, then use the seek up to control the volume which works out quite nicely.

Happily thumbing through my music,
greg porras



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#38373 - 20/09/2001 13:07 Re: gm steering wheel SG1 with radio module [Re: gogee2000]
pgrzelak
carpal tunnel

Registered: 15/08/2000
Posts: 4859
Loc: New Jersey, USA
Greetings!

I would love to see the detail of what you did. I have a 1998 GM car with steering wheel controls, and I would be interested in details. Thanks!

Paul G.
SN# 090000587 (96GB Smoke)
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Paul Grzelak
200GB with 48MB RAM, Illuminated Buttons and Digital Outputs

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#38374 - 20/09/2001 14:27 Re: gm steering wheel SG1 with radio module [Re: pgrzelak]
gogee2000
new poster

Registered: 21/09/2000
Posts: 40
It was actually pretty easy. I ended up ordering the GMSW1 from Crutchfield (you can find it cheaper at other places). This is the GM converter which will hook up to the control wire from your steering wheel. Then you just plug in the mini-jack into the radio module which is then hooked up to the empeg. The only big problem I had was solved very quickly by Hugo sending me a beta of the player software. It works great! If you need more help, just let me know. I may actually take some pictures of my setup and post it up on my website.

cheers
greg



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#38375 - 20/09/2001 17:23 Re: gm steering wheel SG1 with radio module [Re: gogee2000]
pgrzelak
carpal tunnel

Registered: 15/08/2000
Posts: 4859
Loc: New Jersey, USA
Greetings!

Very cool! Thanks! I will try this one out. Up until now, I have been content with the buttons on the player, but this makes things even easier!!!

Paul G.
SN# 090000587 (96GB Smoke)
_________________________
Paul Grzelak
200GB with 48MB RAM, Illuminated Buttons and Digital Outputs

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#38376 - 20/09/2001 21:27 Re: gm steering wheel SG1 with radio module [Re: gogee2000]
94cobra
enthusiast

Registered: 30/09/1999
Posts: 252
I can't seem to get Ctrl-C or q to work. q powers off the player and nothing else will work. Ctrl-C stops the unit, but I can't type anything else.

Here is what I get:

>-l
"CB+'nzKJa C[M ?ڡ矹cJq/J\
%Bލc.BK`
t!-씅Ցrate: 4800, disabling logging


q
j ^,.֨


This is with Hyperterm open at 4800,8,N,1 first. then powering up the Empeg. I am using the cable that came with the Empeg, so I am connecting to the serial jack on the unit not on the wiring harness. Can someone tell me what I am doing wrong?

Proud Owner of MK2 080000558 - 18gb Blue
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#38377 - 21/09/2001 06:50 Re: gm steering wheel SG1 with radio module [Re: 94cobra]
gogee2000
new poster

Registered: 21/09/2000
Posts: 40
If you are trying this with the unit in the car, then you must be at 4800 to type the commands to the player. Once the player exits, you must switch to 115200 to view the shell prompt. At least that's what I ended up doing. If you are undocked, then set at 115200. That should do the trick.

greg
080000127 blue 40gig


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#38378 - 21/09/2001 08:51 Re: gm steering wheel SG1 with radio module [Re: gogee2000]
94cobra
enthusiast

Registered: 30/09/1999
Posts: 252
Ok, Got that part figured out. I have the bash prompt.

I type the two commands as per instructions:
stty -echo raw 19200 < /dev/ttyS0
od -txC -v -w4 /dev/ttyS0

It doesn't echo anything back into Hyperterm. I can Crtl-C and get back to the bash prompt. Is there something else I should be doing here?



Proud Owner of MK2 080000558 - 18gb Blue
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#38379 - 21/09/2001 10:08 Re: gm steering wheel SG1 with radio module [Re: 94cobra]
gogee2000
new poster

Registered: 21/09/2000
Posts: 40
did you make sure to ctrl-c out of the player first to get to the shell prompt? I'm also assuming you HAVE the converter and radio module, right?

greg


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#38380 - 21/09/2001 13:03 Re: gm steering wheel SG1 with radio module [Re: gogee2000]
94cobra
enthusiast

Registered: 30/09/1999
Posts: 252
Oops, I don't have the controller mentioned. But I do have a Sony stick controller with the radio module. Does this only work on the SG controller. It looked like it would work either way.

I press 'q' to quit the player. Is that not enough? When do I press the crtl-C, before "q" or after "q" or instead of "q"?

Proud Owner of MK2 080000558 - 18gb Blue
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#38381 - 21/09/2001 13:07 Re: gm steering wheel SG1 with radio module [Re: 94cobra]
tfabris
carpal tunnel

Registered: 20/12/1999
Posts: 31565
Loc: Seattle, WA
"Q" will shut down the player software gracefully, which goes through its normal shut down routine, which turns off the radio. So that's not what you want to do. Do not press Q.

Ctrl-C drops directly to the shell prompt without going through the graceful shutdown, so the radio remains active. That's what you need to do. Press Ctrl-C.

___________
Tony Fabris
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Tony Fabris

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#38382 - 21/09/2001 13:22 Re: gm steering wheel SG1 with radio module [Re: 94cobra]
gogee2000
new poster

Registered: 21/09/2000
Posts: 40
I'm sorry, yes it will work. Like Tony said below, you do need to exit the player using CTRL-C, not 'Q'

greg


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#38383 - 21/09/2001 18:54 Re: gm steering wheel SG1 with radio module [Re: tfabris]
94cobra
enthusiast

Registered: 30/09/1999
Posts: 252
Got it. That all worked. I've got the codes to echo.

Next question. Are we gonna be able to edit a file on the Empeg to accept different Sony stick controllers? Or do I have to resolder all the resistors in the unit to get it to do what I want.

I have a Sony RM X38 and it doesn't work "out the box."

Who knows what file needs to be hacked? I need a starting point to reconfigure.

Proud Owner of MK2 080000558 - 18gb Blue
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#38384 - 22/09/2001 02:51 Re: gm steering wheel SG1 with radio module [Re: 94cobra]
bonzi
pooh-bah

Registered: 13/09/1999
Posts: 2401
Loc: Croatia
Hm, a simple external config file that pairs ADC value ranges to their buttonpress equivalents sounds like a reasonable request for one of upcomming betas (not the first one, though!)...

Dragi "Bonzi" Raos
Zagreb, Croatia
Q#5196, MkII#80000376, 18GB green
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Dragi "Bonzi" Raos Q#5196 MkII #080000376, 18GB green MkIIa #040103247, 60GB blue

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#38385 - 22/09/2001 07:25 Re: gm steering wheel SG1 with radio module [Re: bonzi]
94cobra
enthusiast

Registered: 30/09/1999
Posts: 252
In the mean time, where is this data stored? Does anyone have a clue?

Proud Owner of MK2 080000558 - 18gb Blue
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Sonic Blue 03 Cobra Vert Owner!!!

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#38386 - 22/09/2001 09:57 Re: gm steering wheel SG1 with radio module [Re: 94cobra]
altman
carpal tunnel

Registered: 19/05/1999
Posts: 3457
Loc: Palo Alto, CA
There is no file, no. Send me the codes & I'll see if they're compatible with v1.04/v2.00.

Hugo



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#38387 - 22/09/2001 21:38 Re: gm steering wheel SG1 with radio module [Re: altman]
94cobra
enthusiast

Registered: 30/09/1999
Posts: 252
Remote Codes for Sony RM-X38

02 00 09 09 - Source
02 00 1f 1f - Mode
02 00 13 13 - Mute
02 00 99 99 - Off
02 00 00 00 - BTM
02 00 b6 b6 - Sel
02 00 d9 d9 - DSPL
02 00 2b 2b - Preset Up
02 00 39 39 - Preset Down
02 00 6b 6b - Seek Up
02 00 81 81 - Seek Down
02 00 47 47 - Volume Up
02 00 59 59 - Volume Down

Thanks for looking into this.


Proud Owner of MK2 080000558 - 18gb Blue
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