rusefi.com

I don' t really see the RTOS as a lazy route, I think it's brilliant and for all the reasons you've stated. It's a great idea to use one. Ok, here's some things I see on your to-do list: First and most important, you need to be able to select the engine type/wheel decoder in the tuning program. Hard...

Does the code/hardware currently have a battery backed ram? Ie, when I turn off the ignition, the unit remains powered, but goes into sleep mode and draws jack all for power. This is handy for down the road when you get adaptive spark advance and adaptive fuel trim. Burning the slight changes to fla...

Did some more troubleshooting, it's the USB status LED that blinks sometimes. Usually when I plug/unplug the board rapidly trying to get it to boot up and the USB drivers fail to initialize because of the way I'm abusing them. ;) It does the same thing if I plug it into a USB phone charger, as there...

I can help soldering these. I have a hot air rework station, a (toaster) reflow oven, and have soldered 100ish pin LQFP packages by hand before (successfully, even). I'd definitely want to order a stencil from OSHStencils and do them in the reflow oven, at least the STM32 chip itself, because doing ...

The date on the firmware is 0511 according to the what it's dumping to the console when I connect to it with a terminal. Usually when I connect it to the computer, the blue LED never starts blinking, no amount of reset button presses help. Both red lights are on tho. This is with or without the cons...

yes stm32f4. Yes I downloaded the compiled version linked here. The other questions were covered in my previous comment.

I'm having trouble getting the firmware to "boot". I flashed it ok, and disconnected in the ST link app. Then hit the black reset button and nothing changed. Tried several times, held it down for a second or two, tried over and over. Unplugged the USB cable, plugged back in. Ok, now the bl...

Yeah, I only read page 1, didn't notice the extra pages before replying. Fair enough.

heh, fuel is way more important than spark advance. You can be way off on spark advance and never notice, whereas if you're running crazy large injectors, at idle, you need every bit of resolution you can get to keep it from oscillating. But yeah, sounds like you've got this.

Why use op amps at all? Just adds more cost to the BOM and more complexity to the build of the board. More components to fail (as you've already experienced). You can simply use voltage dividers. ECM's all over the world have had 5v CPU's for decades, and 12v electrical systems, they simply use a vo...

You would typically fire off a coil that doesn't have an internal ignitor with an IGBT (insulated gate bipolar transistor).
Injectors can be driven off a BJT or a Mosfet, NPN either way. There are a lot of options for injector drivers.

Q: Is there any way to do firmware development without (yet) buying the actual hardware? Some sort of ECU simulator? A: I really suggest you get just the stm32f4disovery board - it's just $15. Q: I see Frankenstein has a USB serial adapter on it. Will I be able to communicate with the ECU without t...

1 degree isn't a big deal, besides the fact that you should be tuned more than 1 degree away from knock, knock at 6k isn't going to damage anything. It's lower RPM knock that has the time to do damage. What kind of injector resolution are you looking at? I believe the original MS1 had a really grain...

I think that so long as TunerStudio wrote the log file, MLV can read it.
Is the schematic for Frankenstein posted somewhere? I found the gerbers, but haven't seen the board and schematic files. But I haven't checked the google code repo, maybe it's there?
Thanks.

Cool, I setup an account on the Wiki, was going to add a source for automotive grade wire that I've had bookmarked for years. Can I get write permission on the Wiki? Definitely planning to play around with this thing. What kind of trigger inputs does it support? 36-1 wheels? The Neon engine that's r...

Hey guys. Just heard about your project when OSHPark tweeted about it today. Looks excellent. Very good choice of Microcontroller, I'd have picked that one too. I've got extensive experience with homebrew fuel injection, having used MegaSquirt in the past. I've become a bit disillusioned with MS's g...