Been working a little here and there, but this is what I've come up with so far. Working on all the programming (takes time)

But what do you think so far?? I'm trying to think of whether to say degrees or "Timing: Street" "Timing: Strip" "Timing: Race"

Or maybe octane?

Feedback??

 

wow!! very impressive!

I've often though about someway to watch values I thought to myself to be critical. Sitting in an aircraft you have the luxury of knowing whats going besides fuel,speed,rpm, oilpressure. I wish we can do the same

Check out the www.projecttransam.com theres a guy there who was working on a heads up display.


by the way, do you plan on supporting a few different vehicles with this thing?

 

Yeah, I'm trying to make it compatible with the Moates adapters. That's what I'm basing this off of as it is right now. I'm just modifying a P-3 adpater from Craig. So it would be compatible with Vettes, F-bodies, SyTy's, and possible GN's.

But once I get the platform, it's just a matter of adapting it. The hard part would be over then.

Here's an updated pic:

 

Cool stuff. I'd really like a way to remotely mount the switch away from the ECM!!! I tried with just 10" of CAT-5 network cable wire but it crosstalked and I only could muster up 4 of the 8 calibrations. Then when I tried using some general PNP transistors to isolate the switch from the circuit I got the same problem. I've tried just about everything except for a super clean amp signal transistors. I just have to ask a few of my EE friends to look at the circuit and figure a solution. When they get around to it I'll be certain to post.
As for the display, looks great but what is needed to program it?
I also just came up with a solution to my switch relocations. I'll just use really small relays and diodes. I don't know why I didn't think of that in the first place!

 

I've already finished the remote switching. I made a movie of the prototype board. Then I tested it in the car and worked well. Now I'm working on the display.

But here's a link to the movie:

http://www.audioatmosphere.net/~dan/DAN/switcher.zip

 

Would you mind telling me exactly how you isolated the switch or is it a product you plan on selling? After looking at the price of relays and needing a few of em I think I'd rather go another route. I see an IC in the movie and is that just a momentary switch that cycles through all 8?
Any help would be much appreciated.

 

I am thinking of producing these and make them available for sale, but the circuit just consists of some PIC chips. One that is for the solid addressing, and the other is for driving the LCD circuit. The pushbutton is just an interrupt for the addressing PIC. Then that PIC is tied to the LCD pic that does the readout.

IT took only about 120 lines of code for the switcher, and about 590 lines for the LCD display. Took a while, but now that I have the format, it can be adapted to whatever programs you're running. It's just a matter of changing some tables internally.

But this setup is for switching between 16 programs, not 8. I'm sure it can be done for 8, it's just a shift of the address lines.

 

Dan,

Looks like some really nice work!

Just to clarify, this is not a ALDL data display tool (YET!). It's just a 'program description display' for switching from one program to another on a multi bank chip.

I've updated the 'standardized' pinout of the P2/P3/J3 switcher extension cables. It is 'safe' in case someone puts it on backward in the case of non-keyed applications. I was trying to make +12v available as well, but that's an easy add-on if you know where you can pull +12v off the Memcal bus.

Anyways, here's the link for the switching info. Hopefully it can serve as a good reference for folks that are trying to figure it out or add cool stuff like Dan is doing.

http://www.moates.net/docs/switchin.html

By the way, anyone know what kind of current limitations should be kept at the +5v takeoff at the EPROM socket? I'm planning to hook up a 100mA load, hope there's no issue. Guess I'd better test it 'on myself'...

Also, I still don't see why there should be an issue with the extension length. I mean, we're talking about short traces that go from +5v through a pullup resistor to the EPROM leg. Then that leg gets dropped to ground at the remote switch. Why would there be an issue? How could even strong RFI or something like that kick the signal around? Dunno, but I know that the Atmel 29C040's did not work but the AMD 29F040's work fine. So who nows? Not me...

 

Well, that current issue is why I'm seriously thinking of running an external power source for running these circuits. It wasn't so bad when I was just running the switcher, but I don't think that running the EL backlit display will be good for the voltage off that memcal bus. I'm probably gonna rig up some 12-5V regulation remotely, and just have an extra +/- connection for power in additioni to the cable for addressing.

And yes, it's not ALDL monitoring....

yet.