Search found 2771 matches

by puff
Thu Apr 02, 2020 6:57 pm
Forum: Hello World
Topic: Hello from Canada
Replies: 11
Views: 161

Re: Hello from Canada

afaik, these also fit audi's 5-cyl engines from late 80-s - early 90-s? but! people say, there are some problems with mounting the sensor (cutting the bell?) + how easy would it be to replace that sensor in case it fails? anyways, would be nice to see pictures of how you coped with it.
by puff
Sat Mar 28, 2020 1:23 pm
Forum: Software
Topic: Dwell problem during starting ? No - caution at flywheel setup
Replies: 37
Views: 651

Re: Dwell problem during starting ?

if you google for an oscillogram of a 'normal' missing tooth, you'd see it's somewhat different. I'd suggest twisting the sensor 90º round as an experiment. if i remember correctly, there was a guidance on how to choose the sensor and how to locate it in relation to the trigger wheel. The metal notc...
by puff
Sat Mar 28, 2020 12:07 pm
Forum: Software
Topic: Dwell problem during starting ? No - caution at flywheel setup
Replies: 37
Views: 651

Re: Dwell problem during starting ?

what are those teeth in the background?
why did you put the sensor this way, not a quarter round? i'd suggest looking at the initial signal on the scope.
by puff
Fri Mar 27, 2020 8:12 pm
Forum: Software
Topic: Dwell problem during starting ? No - caution at flywheel setup
Replies: 37
Views: 651

Re: Dwell problem during starting ?

normally you have on large '1' and then one large '0' (or vice versa), but you have one large '1', then one large '0' and after that another large '1'?
by puff
Wed Mar 25, 2020 7:22 am
Forum: Hardware
Topic: Hellen ECU :: preview and rumours
Replies: 6
Views: 461

Re: Hellen ECU :: preview and rumours

please, show us the enclosure! ;)
by puff
Sat Mar 21, 2020 12:09 pm
Forum: Software
Topic: Fast start features
Replies: 14
Views: 548

Re: Fast start features

I believe it has something to do with trigger-wheel tooth patterns and synching methods. With old-style distributor-based ignition you get the right spark immediately after you start cranking, while here we wait for the missed tooth + then another entire crank rotation (at least this was true some t...
by puff
Sun Mar 08, 2020 5:01 pm
Forum: Hello World
Topic: Hello from Russia
Replies: 12
Views: 1630

Re: Hello from Russia

из того, что знаю: там нет разъема питания, первая ревизия была под ключи микрокопического разъема. в остальном - все так, но опять же зависит от кривизны рук. к франкензо же тоже можно приколхозить плату с родным разъемом?
by puff
Wed Mar 04, 2020 4:12 pm
Forum: Hardware
Topic: microRusEfi55Adapter PnP 55 pin ECU
Replies: 19
Views: 3449

Re: PnP 55 pin ECU

reminds me of the internals of modern SSDs :D
they are somewhat similar -– tiny boards with huge connectors and oversized enclosures...
by puff
Thu Feb 13, 2020 2:33 pm
Forum: Your car & your engine
Topic: red 2003 VVT test mule Miata NB2 #27
Replies: 157
Views: 40389

Re: red 2003 VVT test mule Miata NB2 #27

one more thing, I've heard that installing a large capacitor across the coil's power lines help (although I don't understand why it should help)
by puff
Thu Feb 13, 2020 2:31 pm
Forum: Your car & your engine
Topic: red 2003 VVT test mule Miata NB2 #27
Replies: 157
Views: 40389

Re: red 2003 VVT test mule Miata NB2 #27

hm. shall I try cranking my oldrusty rover without a coil attached?
do you think it's just affecting the usb connection, or the whole thing?
by puff
Wed Feb 05, 2020 12:04 am
Forum: Software
Topic: GDI - High Pressure Fuel Pump Control
Replies: 7
Views: 3099

Re: GDI - High Pressure Fuel Pump Control

and what's the nominal pressure? by any chance, do you have part numbers/pictures of those pressure sensor and solenoid valve? I still have a similar challenge - build a cheap diy version of FrankenCIS, which has essentially the same concept: control fuel pressure (withstanding up to 150psi) based o...
by puff
Tue Feb 04, 2020 10:12 pm
Forum: Software
Topic: GDI - High Pressure Fuel Pump Control
Replies: 7
Views: 3099

Re: GDI - High Pressure Fuel Pump Control

where is the fuel pressure sensor?
i'd love to see the circuitry for that one.
by puff
Mon Feb 03, 2020 7:24 am
Forum: Hardware
Topic: HOWTO use Bluetooth module
Replies: 6
Views: 3763

Re: HOWTO use Bluetooth module

It has limited support of old-style BT, but it works perfectly fine with BLE. Anyway, it needs some efforts to develop the software.
by puff
Sun Feb 02, 2020 3:34 pm
Forum: Hardware
Topic: HOWTO use Bluetooth module
Replies: 6
Views: 3763

Re: HOWTO use Bluetooth module

what's so special about it? it's still the old bluetooth.
technically, with BLE you can be able to build a native app for iOS devices to control rusefi.
by puff
Tue Jan 21, 2020 11:26 pm
Forum: Hardware
Topic: Mary Shelley's Frankenso
Replies: 59
Views: 12061

Re: Mary Shelley's Frankenso

I think so. Jared could give you a better answer. I've noticed it on the top of mmc_usb_1 sheet of frankenso_schematic.pdf (rev. 0.5.5 of 2019-04-12). It seems it uses just one of those diodes (probably, to optimize BOM?) not sure what's that part of circuit is about. cbus0 & cbus1 seem to just blin...
by puff
Tue Jan 21, 2020 7:58 pm
Forum: Hardware
Topic: Mary Shelley's Frankenso
Replies: 59
Views: 12061

Re: Mary Shelley's Frankenso

isn't it the same as used to protect analog inputs? anyways, it's worth checking the bat54 series - there are similar devices.
btw, have you seen this remark?
Снимок экрана 2020-01-21 в 22.57.39.png
Снимок экрана 2020-01-21 в 22.57.39.png (20.24 KiB) Viewed 5031 times
by puff
Mon Jan 20, 2020 3:49 pm
Forum: Software
Topic: [info] rusEfi Scheduler Performance & Accuracy
Replies: 55
Views: 9513

Re: [info] rusEfi Scheduler Performance & Accuracy

do they have fpu? :-)
by puff
Tue Jan 14, 2020 9:57 am
Forum: Software
Topic: [info] rusEfi Scheduler Performance & Accuracy
Replies: 55
Views: 9513

Re: [info] rusEfi Scheduler Performance & Accuracy

Isn't it a tradeoff for simplification of software development?

anyways, it would be nice to have same data at least for another test with higher RPM, and I missed - what was the trigger-wheel in this setup?
by puff
Mon Jan 13, 2020 8:47 pm
Forum: Software
Topic: [info] rusEfi Scheduler Performance & Accuracy
Replies: 55
Views: 9513

Re: [info] rusEfi Scheduler Performance & Accuracy

great work!
by puff
Thu Jan 09, 2020 7:53 pm
Forum: Misc
Topic: Is stm32f4 the right chip?
Replies: 136
Views: 31829

Re: Is stm32f4 the right chip?

infinityedge wrote:
Thu Jan 09, 2020 7:25 pm
It's probably overkill, but might be a good first usecase after duct taping the two together.
like a separate fpga-based device to detect misfire events? whoa!
by puff
Wed Jan 08, 2020 9:30 pm
Forum: Misc
Topic: Is stm32f4 the right chip?
Replies: 136
Views: 31829

Re: Is stm32f4 the right chip?

In a recent thread there is another guy who wants to port rusefi to some oem ecus used in audi. Probably those ecus use chips that are more suitable for such tasks? But then again what's the need to port rusefi? Lack of flexibility of the original firmware?
by puff
Wed Jan 08, 2020 4:04 pm
Forum: Misc
Topic: Is stm32f4 the right chip?
Replies: 136
Views: 31829

Re: Is stm32f4 the right chip?

MS - megasquirt? - as the key rivals in terms of timing accuracy? why not OEM ecus? anyway, according to Jared, newer gdi systems would require more timers with better accuracy (if i'm not mistaken) - wouldn't this bring us to limitations of the current mcu? just my recent thoughts: to my knowledge,...
by puff
Wed Jan 08, 2020 2:00 pm
Forum: Misc
Topic: Is stm32f4 the right chip?
Replies: 136
Views: 31829

Re: Is stm32f4 the right chip?

not sure about the original topic-starter of that thread, but in the later posts by peredelkin (dated novermber 2019) he uses fpga to calculate some angles and dwell times. "a solution in search of a problem" - still no clear understanding if there is such a problem. according to russian, there is n...
by puff
Wed Jan 08, 2020 8:49 am
Forum: Misc
Topic: Is stm32f4 the right chip?
Replies: 136
Views: 31829

Re: Is stm32f4 the right chip?

just a reminder. check this out
viewtopic.php?f=10&t=1191
by puff
Wed Jan 08, 2020 8:46 am
Forum: Misc
Topic: teamviewer alternatives?
Replies: 5
Views: 2318

Re: teamviewer alternatives?

chrome remote desktop?
by puff
Tue Jan 07, 2020 6:04 am
Forum: Hardware
Topic: let's choose an enclosure
Replies: 106
Views: 22977

Re: let's choose an enclosure

could you please provide the links to ali?
by puff
Mon Jan 06, 2020 9:19 am
Forum: Hello World
Topic: Hi there !
Replies: 4
Views: 1937

Re: Hi there !

wow! what's the expected timeframe? will it take a year, or rather a decade? right time to get a cheap audi ecu from scrap-yard before they go up in price?
by puff
Mon Dec 23, 2019 8:05 am
Forum: Hardware
Topic: STM32F407VET6 Mini Development Board System Board
Replies: 34
Views: 6941

Re: STM32F407VET6 Mini Development Board System Board

what's f-ken?
2019-12-23 11.04.59.jpg
2019-12-23 11.04.59.jpg (174.53 KiB) Viewed 1017 times
here's mine - looks a bit different?
by puff
Sun Dec 22, 2019 9:44 pm
Forum: Hardware
Topic: STM32F407VET6 Mini Development Board System Board
Replies: 34
Views: 6941

Re: STM32F407VET6 Mini Development Board System Board

:-) same stuff
PA11 and PA12 - directly to usb cable or to usb-serial adapter?
vcc to PA9 - what's that?
by puff
Sun Dec 22, 2019 1:20 pm
Forum: Hardware
Topic: STM32F407VET6 Mini Development Board System Board
Replies: 34
Views: 6941

Re: STM32F407VET6 Mini Development Board System Board

good question. if you find the way, please, post it here (or better special wiki page? with most commonly used commands to test, erase and flash the mcus?)