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Re: microRusEFI

Posted: Tue Jan 11, 2022 9:37 pm
by Dron_Gus
JRD McLAREN wrote:
Tue Jan 11, 2022 5:28 pm
.. I'm assume:
12V_MREL ON - stopped engine
12V_MREL OFF - cranking
12V_MREL ON - run / idling

RIGHT .. ?
Nope. 12V_MREL is on in all three states. To archive this you need 12V_KEY to be connected to IGN-1 on picture above.

Re: microRusEFI

Posted: Thu Jan 13, 2022 7:38 pm
by JRD McLAREN
YES, you right ...

my meaning is wrong ... sorry for effort ...

Some cars have two 15 lines (15 and 15A) form ignition switch ..
and some has "main relay" for whole electricity in the car - drive by ECU PCM or PMU

Re: microRusEFI

Posted: Sun Jan 16, 2022 8:37 pm
by JRD McLAREN
...picked from SLACK ...

Automotive companies avoid to use small (tiny) SMD components
smallest smd (0402) can be shorted by humidity sooner ... as bigger 1206 ...

I have same old ecus ..and the smallest one are 0603 ... 0805 is standard ...
"bigger" caps are 1206 ... etc ..

(many OEM ecus has no protective film / paint / glaze)

Will be good to use "automotive grade" passives for the future.
C0603C104K3RACAUTO - for explame

..and on the other side ...
avoid to use "BIG electrolytic CAPs" ... it can be broken by vibration ..
(it is glued if it is necessary)

Re: microRusEFI

Posted: Sun Jan 16, 2022 8:46 pm
by AndreyB
Pic of Ford or Hyundai not sure which one probably Hyundai

R22 is probably 1206?
I think I see at least caps smaller than 0603. Four sizes on the same board a bit insane.

Re: microRusEFI

Posted: Tue Jan 18, 2022 7:52 pm
by sepp2gl
Hi guys,
just looking through MRE. Looks really nice for 4-cyl applications.
You decided to use TLE8888 for it.
Did you find a reliable distributor for the procurement of this chip?
I only found Digikey, who seem to be willing to sell small numbers of it.
Is there any other second source?
kr, sepp2gl

Re: microRusEFI

Posted: Tue Jan 18, 2022 7:55 pm
by AndreyB
It was designed before the chip shortage :( yes magic part dependency was a risk then and is a bigger risk now

Re: microRusEFI

Posted: Tue Jan 18, 2022 9:51 pm
by JRD McLAREN
Mouser is distributor also ..

..and ... at this time, is problem to buy any kind of IC ...

(I waiting for stm32f407 .. 3 months)

Re: microRusEFI

Posted: Thu Jan 20, 2022 3:05 am
by AndreyB
http://www.itelma.ru/ M86 ECU used on https://en.wikipedia.org/wiki/Lada_Vesta

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Re: microRusEFI

Posted: Tue Apr 19, 2022 9:12 pm
by AndreyB
Look 0.6.0 :)
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Re: microRusEFI

Posted: Tue Apr 19, 2022 9:18 pm
by JRD McLAREN
WOW ... GD32F .... :shock:

Re: microRusEFI

Posted: Tue Apr 19, 2022 9:42 pm
by puff
GD - :o
Is USB still a primary way of communications with TS / devconsole?

Re: microRusEFI

Posted: Tue Apr 19, 2022 9:45 pm
by mck1117
puff wrote:
Tue Apr 19, 2022 9:42 pm
GD - :o
Is USB still a primary way of communications with TS / devconsole?
Not a gd32 batch, just an experiment :)

Re: microRusEFI

Posted: Tue Apr 19, 2022 11:40 pm
by AndreyB
puff wrote:
Tue Apr 19, 2022 9:42 pm
GD - :o
Is USB still a primary way of communications with TS / devconsole?
There must be a reason you are asking, do you want to share something? :)

Re: microRusEFI

Posted: Wed Apr 20, 2022 5:26 pm
by puff
this is probably offtopic here ;-)
nothing particular. just saw a usb connector, which reminded me of some pronounced ideas of moving to can bootloader (still under construction?)

besides, when recently my brother was chip-tuning his diesel citroen, the garage guy soldered some wires to the ecu directly. he said he could flash it through a normal diagnostics connector, but in that case he won't be able to make a backup.

K-line or LIN might be too slow for this purpose, but the bandwith of CAN (a second one?) should be enough. However, with TunerStudio supporting only serial connection, there isn't much value in all this...

Re: microRusEFI

Posted: Wed Apr 20, 2022 9:29 pm
by JRD McLAREN
...is able to make backup via K-line .. when you have 45-80 min. time ...

Re: microRusEFI

Posted: Wed Apr 20, 2022 9:42 pm
by AndreyB
puff wrote:
Wed Apr 20, 2022 5:26 pm
However, with TunerStudio supporting only serial connection, there isn't much value in all this...
Just a reminder that we have a working prototype of CAN-to-serial-to-TunerStudio bridge just need to figure out if there are defects there or not.

Re: microRusEFI

Posted: Thu Apr 21, 2022 4:38 am
by AndreyB
JRD McLAREN wrote:
Wed Dec 22, 2021 5:06 pm
BM2LC120FJ-C or BM2LC105FJ-C
these parts have pretty similar specs why do they even have two different parts? is that a trade off between speed and resistance or something else?

105
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Re: microRusEFI

Posted: Thu Apr 21, 2022 5:39 am
by MHTSOS
Different rdson resistance. Pick the lowest one since it makes less heat while on.

Στάλθηκε από το VOG-L29 μου χρησιμοποιώντας Tapatalk


Re: microRusEFI

Posted: Thu Apr 21, 2022 8:43 am
by puff
where do I read more about that CAN-to-serial-to-TunerStudio bridge? If it works fine, it might be a good idea to implement it on board, so that the ecu can be completely sealed?

Re: microRusEFI

Posted: Wed Apr 27, 2022 3:09 pm
by AndreyB
microRusEFI 0.5 sale at https://www.shop.rusefi.com/shop/p/microrusefi-assembled-ecu-development-module fully assembled starting at $275

Re: microRusEFI

Posted: Fri May 20, 2022 12:39 am
by AndreyB

Re: microRusEFI

Posted: Sun May 29, 2022 6:46 pm
by AndreyB
klpaul wrote:
Sun May 29, 2022 5:38 pm
AndreyB wrote:
Sun May 29, 2022 2:44 pm
Please update to latest https://rusefi.com/build_server/rusefi_bundle_mre_f4.zip and try again - I've changed something in that specific binary
Thank's, it's work.
Great to hear that we've made progress! For anything less general please post a separate build or separate questions threads

Re: microRusEFI

Posted: Thu Jul 14, 2022 9:58 am
by AndreyB
mck1117 wrote:
Tue Apr 19, 2022 9:45 pm
Not a gd32 batch, just an experiment :)
GD32F405 GD32F4 experiment failed: have a discovery board with GD32F405 - while openocd have successfully flashed rusEFI and st-link equally happy connects to this chip I do not even have LEDs blinking. Experiment goes on the shelf since zero priority.

Re: microRusEFI

Posted: Wed Aug 10, 2022 2:59 am
by AndreyB
Now shipping microRusEFI 0.6.0 with on-board SD card.

For the last two months we were experimenting with $299 pricing at https://shop.rusefi.com/ but it gets back to $450 on Aug 15th.

Re: microRusEFI

Posted: Wed Aug 10, 2022 10:25 am
by 007adr
I ordered mine on the 4 th is it the 0.6 board?


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Re: microRusEFI

Posted: Wed Aug 10, 2022 4:20 pm
by AndreyB
007adr wrote:
Wed Aug 10, 2022 10:25 am
I ordered mine on the 4 th is it the 0.6 board?
Yes, i think it is.

Re: microRusEFI

Posted: Thu Aug 11, 2022 12:52 am
by 007adr
its ok if it isn't but awesome great edition to the project