Search found 241 matches

by mck1117
Wed Oct 09, 2019 2:18 am
Forum: Hardware
Topic: Sprut - A newbies try to design an ECU
Replies: 46
Views: 784

Re: Sprut - A newbies try to design an ECU

Does Mouser EU not ship to Sweden? They have a few thousand F405RG in stock.

@960 may have tips for EU sourcing of components.
by mck1117
Wed Oct 09, 2019 1:29 am
Forum: Hardware
Topic: Sprut - A newbies try to design an ECU
Replies: 46
Views: 784

Re: Sprut - A newbies try to design an ECU

InternetAthiest wrote:
Wed Oct 09, 2019 1:22 am
Yeah, going to re-route it for LQFP64. Thinking of using the STM32F412RET6 instead.
Any reason for the F412 over the F405/407? The STM32F405RGT6 is only $4 more, and is fully supported by rusEfi out of the box.
by mck1117
Tue Oct 08, 2019 11:38 pm
Forum: Hardware
Topic: Sprut - A newbies try to design an ECU
Replies: 46
Views: 784

Re: Sprut - A newbies try to design an ECU

Otherwise the G4 series has a different pin out but has more flash but at that point I'd rather up size to LQFP64. Now, SWD seems kinda sweet to have but would require the up size. It would also allow me to add status LEDs and CAN without impacting current I/O. Seems worth re-routing for those feat...
by mck1117
Tue Oct 08, 2019 10:27 am
Forum: Hardware
Topic: Sprut - A newbies try to design an ECU
Replies: 46
Views: 784

Re: Sprut - A newbies try to design an ECU

The STM32F070CBT comes from factory with the capability of flashing firmware via USB without changing the bootloader. This means that I do not need a SWD header. While technically true, one of the huge advantages of the whole STM32 family is that you can attach a debugger, set breakpoints, inspect ...
by mck1117
Tue Oct 08, 2019 10:16 am
Forum: Hardware
Topic: Sprut - A newbies try to design an ECU
Replies: 46
Views: 784

Re: Sprut - A newbies try to design an ECU

i believe RAM is your biggest risk. I would strongly recommend looking into rusEfi RAM and flash usage before ordering this PCB. I agree - the F070CB is not enough chip to run rusEfi. There are a few reasons it isn’t enough: It has no FPU. Since the firmware relies heavily on floating point math, p...
by mck1117
Sat Oct 05, 2019 2:07 am
Forum: Hardware
Topic: microRusEfi
Replies: 174
Views: 9229

Re: microRusEfi

Three microRusEfi v0.3 boards are done! All started and ran my car great, and seem to behave identical to the v0.1 board I've been running.

Image
by mck1117
Sun Sep 29, 2019 11:42 pm
Forum: Hardware
Topic: rusEFI display
Replies: 54
Views: 6854

Re: rusEFI display

My Focus has stepper gauges (tach, speed, temp, fuel), and zeroes the gauges when you unlock the car. A normal driver will probably never see it happen.
by mck1117
Sun Sep 22, 2019 10:29 am
Forum: Software
Topic: 101 on Matlab/Simulink
Replies: 11
Views: 1839

Re: 101 on Matlab/Simulink

I'm now extremely curious if you can get Scilab to compile your block diagram in to a program, or even to a "normal" script output. Because if you can, we can design the ECU in Scilab.
by mck1117
Wed Sep 11, 2019 9:30 pm
Forum: Your car & your engine
Topic: 1990 Geo Storm GSI - Advice/Suggestions? #18
Replies: 272
Views: 26643

Re: 1990 Geo Storm GSI - Advice/Suggestions? #18

Ok - those will be the same tune, other than ETB stuff (which isn't really useful to us anyway). I know I certainly have the VE/ignition tables from that engine handy, since mine is a 2002-ish 5.3 flex fuel van engine (LM7/L59/LM4/L33 all have the same VE table). I'll have to see if I can export the...
by mck1117
Wed Sep 11, 2019 8:00 pm
Forum: Hardware
Topic: Frankenso - ECU shield compatible with OEM case / official
Replies: 529
Views: 115545

Re: Frankenso - ECU shield compatible with OEM case / official

atntpt wrote:
Tue Sep 10, 2019 8:57 pm
Testing on bench , I noticed if I power it via discovery usb the 5v line also varies .
I understand that you're testing on the bench, but how are the sensors connected? Are sensors connected at all?
by mck1117
Tue Sep 10, 2019 9:08 pm
Forum: Your car & your engine
Topic: 1990 Geo Storm GSI - Advice/Suggestions? #18
Replies: 272
Views: 26643

Re: 1990 Geo Storm GSI - Advice/Suggestions? #18

I can certainly find/dump a stock 4.8 or 5.3 (or whatever) tune. Which cam is in each car? Stock GM truck?
by mck1117
Tue Sep 10, 2019 8:06 pm
Forum: Hardware
Topic: Frankenso - ECU shield compatible with OEM case / official
Replies: 529
Views: 115545

Re: Frankenso - ECU shield compatible with OEM case / official

atntpt wrote:
Tue Sep 10, 2019 7:11 pm
Can anyone help me understand why do i have this noise on analog inputs ?
The frequency of the noise seams to sync with some kind of led blink or something
What does your wiring setup look like? What sensors are those connected to? How are they grounded? How is the ECU grounded?
by mck1117
Tue Sep 10, 2019 6:14 pm
Forum: Your car & your engine
Topic: 1990 Geo Storm GSI - Advice/Suggestions? #18
Replies: 272
Views: 26643

Re: 1990 Geo Storm GSI - Advice/Suggestions? #18

By the way, I have an HPTuners license (and interface), so I can at least read GM ECUs, and view tunes uploaded by others to the HPT website. So I can rip particular maps (VE, injector compensation, etc) out of factory tunes if you're interested.
by mck1117
Mon Sep 09, 2019 11:15 pm
Forum: Your car & your engine
Topic: 1990 Geo Storm GSI - Advice/Suggestions? #18
Replies: 272
Views: 26643

Re: 1990 Geo Storm GSI - Advice/Suggestions? #18

On #2: Russian is mostly correct, but some stuff can be close enough to get the engine at least running (though you may have to copy values over manually). The VE table for the GM ECUs does the same thing as ours, and I'd bet is certainly within 10% of what's "correct" for rusEfi to run the same eng...
by mck1117
Thu Aug 22, 2019 9:36 pm
Forum: Hardware
Topic: ECU with redundance for Aircraft use
Replies: 5
Views: 324

Re: ECU with redundance for Aircraft use

Preface: I hold a US Private Pilots License and hang out with a bunch of aerospace engineers, so I'm familiar with how the aerospace world works with respect to engineering and manufacturing. Is it possible to use on one engine 2 Ecu? If one fault second understand and continue correct operation? It...
by mck1117
Wed Aug 21, 2019 9:49 pm
Forum: Your car & your engine
Topic: 2004 Mazda MX5 1.8 VVT #50
Replies: 163
Views: 4592

Re: 2004 Mazda MX5 1.8 VVT #50

Why is it difficult to control idle with a pre-SC TB? Every OEM supercharger install on the planet puts the throttle before the blower, and doesn't have problems with idle control. What's wrong with putting the throttle before the SC, and running a normal vacuum-operated bypass valve in the supercha...
by mck1117
Mon Aug 19, 2019 9:33 am
Forum: Hardware
Topic: microRusEfi
Replies: 174
Views: 9229

Re: microRusEfi

Also I understand D1 gets hot. Perhaps that would have some thermal via's. Yes - D1 is also dissipating maybe 1/10 watt, but it has almost no thermal conduction to the case, and almost all the conduction it has is to the already-hot Q1. Probably a better plan to investigate using a pfet instead, si...
by mck1117
Mon Aug 19, 2019 5:49 am
Forum: Hardware
Topic: microRusEfi
Replies: 174
Views: 9229

Re: microRusEfi

Q1 doesn't switch. The tle8888 is using Q1 as an external linear regulator to get the dissipation out of the tle8888 itself, then doing the precise 6v -> 5v regulation internally. Per the tle8888 datasheet, page 58: A linear pre-regulator with an external logic level power MOSFET is implemented to k...
by mck1117
Mon Aug 19, 2019 4:17 am
Forum: Hardware
Topic: microRusEfi
Replies: 174
Views: 9229

Re: microRusEfi

Stm32 does. 45-50c internal stm32 temperature is consistent with what I've seen running on 12v, sitting on carpet with only the bottom half of the case. My board pulls just shy of 300mA. So Q1 is dissipating (12v-6v) * 300mA = 1.8W. The 8888 should be dissipating around 0.3 watt in its regulator, pl...
by mck1117
Thu Aug 15, 2019 9:30 pm
Forum: Your car & your engine
Topic: 1991 Volvo 240 Racecar #49
Replies: 3
Views: 362

Re: 1991 Volvo 240 Racecar #49

I suppose I should provide an update on this car: July 17 I took the car to a track day, running on Frankenso. Other than identifying a (now fixed) trigger performance bug, the ECU did fine. The car had some pretty serious windshield fogging problems since it was raining, but that wasn't rusEfi's fa...
by mck1117
Thu Aug 15, 2019 8:28 pm
Forum: Hardware
Topic: microRusEfi
Replies: 174
Views: 9229

Re: microRusEfi

This got posted on Facebook, but not in this thread! microRusefi has now run an engine! Last week I successfully wired and started my Volvo b230 on microRusefi serial number 1. https://www.youtube.com/watch?v=YD1suLdczv8 Since the engine was already running on Frankenso, the tune ported over with al...
by mck1117
Thu Aug 15, 2019 8:21 pm
Forum: Hardware
Topic: microRusEfi
Replies: 174
Views: 9229

Re: microRusEfi

I've left mine running for several days with the trigger simulator running the whole time without issue! Powered from +12v.
by mck1117
Tue Aug 13, 2019 8:33 pm
Forum: Hardware
Topic: rusEfi own wide band controller board add-on using CJ125
Replies: 301
Views: 25668

Re: rusEfi own wide band controller board add-on using CJ125

Internal ADC is interesting - it's also not bosch, so documentation is far easier to find, and it's far easier to actually buy one (Mouser has them in stock). And they're cheaper: $6.55 in single quantities.
by mck1117
Tue Aug 06, 2019 8:47 pm
Forum: Hello World
Topic: Hello Off Road World!
Replies: 26
Views: 1005

Re: Hello Off Road World!

I think trying to run those extra 30 volts is probably unnecessary. I bet it will work just fine at 72v, though the injectors may open a tiny bit slower. From the link with scope traces, the part circled is the only part that would change: https://imgur.com/laM5r6s.png The slope would be around 25% ...
by mck1117
Tue Aug 06, 2019 4:32 am
Forum: Hardware
Topic: Frankenso - ECU shield compatible with OEM case / official
Replies: 529
Views: 115545

Re: Frankenso - ECU shield compatible with OEM case / official

When you get the Frankenso pre made, can you see red dots of glue under the 0805s on the underside. I hear that 0603 and smaller will stay on the underside without glue with a 2 oven process - oven solder bottom side parts and re oven for the top side parts -, due to the solder surface tension, but...
by mck1117
Mon Aug 05, 2019 7:06 pm
Forum: Hello World
Topic: Hello from Wisconsin
Replies: 6
Views: 212

Re: Hello from Wisconsin

First, how well has tuning worked with rusefi from adding a turbo to a vehicle that originally was N/A? A few of us now have run NA and turbo on the same engine with rusEfi. I've done it on my two Volvos (one NA, one turbo), and a friend of mine did it on his NB Miata. Ultimately tuning with a turb...
by mck1117
Thu Aug 01, 2019 12:58 am
Forum: Hardware
Topic: Old Russian motorcycle fuel injection
Replies: 17
Views: 746

Re: Old Russian motorcycle fuel injection

So for analog sensors, I count: 4x TPS (2 per ETB) 2x MAP 2x oil temperature 1x intake air temperature 2x "pedal" input 2x wideband Which is a count of 13, which could maybe fit on Frankenso with some rewiring, but might be more hassle than its worth. If you could temporarily live with a single oil ...
by mck1117
Wed Jul 31, 2019 10:11 pm
Forum: Your car & your engine
Topic: 1990 Geo Storm GSI - Advice/Suggestions? #18
Replies: 272
Views: 26643

Re: 1990 Geo Storm GSI - Advice/Suggestions? #18

Hey, more people with LS engines in the PNW! I have a 1993 Volvo 240 with an LS swap that I'll convert to rusEfi at some point (the car was running rusEfi when it had a turbo 4 cyl). I'm up in Kirkland, and noxz on the forum is in Seattle. I could be convinced to come to the rusEfi party if it's on ...
by mck1117
Wed Jul 31, 2019 3:55 am
Forum: Hello World
Topic: Hello Off Road World!
Replies: 26
Views: 1005

Re: Hello Off Road World!

I had a chance to look at the OEM circuit, and it looks like the CY220 uses a very similar architecture as the MC33816 or PT2000. There's really only one architecture out there for running DI injectors, and they both implement it. Because peak-and-hold injector drivers like these run closed-loop con...
by mck1117
Tue Jul 30, 2019 11:51 pm
Forum: Your car & your engine
Topic: Моё Чудо ... VW Passat B4 ABA ... #16
Replies: 103
Views: 15028

Re: Моё Чудо ... VW Passat B4 ABA ... #16

I am very interested how to tune Injection Phase ??? For engines like ours, injection phase doesn't really matter much. You will probably get slightly better emissions, cold start, and idle smoothness if you inject against a closed valve so the fuel vaporizes fully by the time the valve opens. I wa...