Search found 2757 matches

by puff
Tue Jan 21, 2020 11:26 pm
Forum: Hardware
Topic: Mary Shelley's Frankenso
Replies: 49
Views: 3718

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: 49
Views: 3718

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 32 times
by puff
Mon Jan 20, 2020 3:49 pm
Forum: Software
Topic: [info] rusEfi Scheduler Performance & Accuracy
Replies: 54
Views: 902

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: 54
Views: 902

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
Thu Jan 09, 2020 7:53 pm
Forum: Misc
Topic: Is stm32f4 the right chip?
Replies: 135
Views: 16606

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: 135
Views: 16606

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: 135
Views: 16606

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: 135
Views: 16606

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: 135
Views: 16606

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: 113

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: 14794

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: 87

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: 1958

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 81 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: 1958

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: 1958

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?)
by puff
Sun Dec 22, 2019 12:42 pm
Forum: Hardware
Topic: STM32F407VET6 Mini Development Board System Board
Replies: 34
Views: 1958

Re: STM32F407VET6 Mini Development Board System Board

indeed, i didn't pay attention to that.
anyway, my black stm32f407vgt6 board didn't work with the standard rusefi firmware (see the posts above) - I thought that might be because of that 28MHz quartz, which is not the case. So, there should be another reason why it doesn't start.
by puff
Sun Dec 22, 2019 10:42 am
Forum: Hardware
Topic: STM32F407VET6 Mini Development Board System Board
Replies: 34
Views: 1958

Re: STM32F407VET6 Mini Development Board System Board

if it uses the same 28mhz quartz, it would probably need a recompiled binary?
by puff
Mon Dec 16, 2019 7:38 am
Forum: Your car & your engine
Topic: 1993 Volvo 240 LS Swap #56
Replies: 7
Views: 228

Re: 1993 Volvo 240 LS Swap #56

aren't there delays introduced by using can bus instead of direct ADC?
by puff
Sat Nov 30, 2019 6:36 am
Forum: Hardware
Topic: Sprut - A newbies try to design an ECU
Replies: 72
Views: 4902

Re: Sprut - A newbies try to design an ECU

so you fried it? or it survived ?
by puff
Fri Nov 22, 2019 3:47 pm
Forum: Другое
Topic: ECU on FPGA
Replies: 16
Views: 2734

Re: ECU on FPGA

чтойто? hip?
by puff
Fri Nov 22, 2019 5:16 am
Forum: Hardware
Topic: cheap cylinder pressure sensor option - smart diesel glow plug with pressure sensor
Replies: 56
Views: 8669

Re: cheap cylinder pressure sensor option - smart diesel glow plug with pressure sensor

100ns per division? so, the drop duration is even below 100ns? do you know what's inside that sensor? it's design? may be, there is a certain ciruitry there which causes that drop? it's a cylinder sensor, which means - the measurements should have a certain pattern (according to engine cycle)? I'd t...
by puff
Sun Nov 17, 2019 4:52 pm
Forum: Software
Topic: Feature Requests - Feature Bounty Program
Replies: 6
Views: 994

Re: Feature Requests - Feature Bounty Program

you forgot "/it"
sorry, couldn't help adding that remark.
just wondering, are there any girls doing rusefi?
by puff
Tue Nov 12, 2019 3:40 am
Forum: Hardware
Topic: let's choose an enclosure
Replies: 106
Views: 14794

Re: let's choose an enclosure

If it's not only about the connector, but about the whole enclosure, I'm afraid there's nothing left for people but building their own boards. It's a bit annoying, but you can live with that. Besides, imho building boards for many people seems much less complex and much more feasible than adding new...
by puff
Sun Oct 13, 2019 12:17 pm
Forum: Your car & your engine
Topic: 1998 BMW V12 engine M73 #55
Replies: 40
Views: 6872

Re: 1998 BMW V12 engine M73

Indeed, what's the purpose? You want to sniff the signals? I'd suggest finding Haynes repair manual (if there is one for that car) - from my experience, it's the most extensive source of information. As for the video, I'd say it was more than 5 seconds for each operation. Have you checked your wirin...
by puff
Mon Oct 07, 2019 6:44 pm
Forum: Hardware
Topic: Sprut - A newbies try to design an ECU
Replies: 72
Views: 4902

Re: Sprut - A newbies try to design an ECU

What about the firmware? I doubt that rusefi will run on your microcontroller of choice.
I wonder, how difficult it is to reroute the board for a different connector?
by puff
Mon Oct 07, 2019 7:32 am
Forum: Your car & your engine
Topic: 1998 BMW V12 engine M73 #55
Replies: 40
Views: 6872

Re: 1998 BMW V12 engine M73

!congrats!
by puff
Sat Oct 05, 2019 12:14 pm
Forum: Your car & your engine
Topic: one cylinder hf predator engine 212cc #54
Replies: 14
Views: 1135

Re: hf predator engine 212cc

I'd say ignition timing could be wrong?...
what are those red and green dashed lines? what's no_pin event in the bottom?
by puff
Thu Oct 03, 2019 9:07 pm
Forum: Hardware
Topic: Sprut - A newbies try to design an ECU
Replies: 72
Views: 4902

Re: Sprut - A newbies try to design an ECU

still, what is the esssence of "FFT analyze"? looks like as if it highlights the frequencies with higher amplitude? (more distinct?) couple of concerncs: - you forget about 'knock windows' - are you sure about the accuracy of your measuring equipment/software? and once again, there are other sources...
by puff
Thu Oct 03, 2019 8:52 pm
Forum: Software
Topic: ETB or 36/1 performance issue?
Replies: 31
Views: 1811

Re: electronic throttle body control ETB - performance issue?

not my case?
(I seem to have similar disconnects, but caused by noisy cps signal?)
how did rusefi_no_asserts help rene325?