Search found 154 matches

by Dron_Gus
Fri Jul 26, 2019 9:37 pm
Forum: Software
Topic: hip9011 integration
Replies: 115
Views: 16695

Re: hip9011 integration

-- Did your version follow the above posted schematic? Yes. -- How did you wire the clock signal? PA8 to input of posted schematic. PA8 has alternative function MCO1. On STM32F7 4 different internal clocks can be routed to MCO1. With dividers from 1/1 to 1/5. -- Did it work? I did not try access 90...
by Dron_Gus
Fri Jul 26, 2019 10:32 am
Forum: Software
Topic: hip9011 integration
Replies: 115
Views: 16695

Re: hip9011 integration

Can someone scab in a wire from one of these STM pins, then setup the circuit as noted below. You should have some pads at the XTAL circuit, you would just need to add a wire to get the STM signal over to the clock area. On my version of ECU 9011 is clocked from STM32 this way. But I did not try 90...
by Dron_Gus
Wed Jun 19, 2019 6:40 pm
Forum: Железо
Topic: Правильное подключение ключа обогревателя ШЛЗ
Replies: 16
Views: 892

Re: Правильное подключение ключа обогревателя ШЛЗ

Tle8888, tle6240 и какой-то там mc33 должны работать. Во всяком случае у меня два на одной шине работали. За остальные не скажу.
by Dron_Gus
Tue Jun 18, 2019 11:16 am
Forum: Железо
Topic: Правильное подключение ключа обогревателя ШЛЗ
Replies: 16
Views: 892

Re: Правильное подключение ключа обогревателя ШЛЗ

Ну... Во первых главное реле отсутствует как класс. Во вторых как вы себе это представляете? Ключ повёрнут, мотор не запущен, а лямбда уже греется. К тому же это всё будет на мотоцикле с маленьким акумом, мне лишние потребители на заглушенном моторе вообще ни к чему. Ну хоть ключ есть. Тогда в поло...
by Dron_Gus
Tue Jun 18, 2019 10:23 am
Forum: Железо
Topic: Правильное подключение ключа обогревателя ШЛЗ
Replies: 16
Views: 892

Re: Правильное подключение ключа обогревателя ШЛЗ

Если у Вас законченное устройство - контроллер ШПЛЗ, зачем его запитывать через RusEFI? Запитайте его через главное релле.
by Dron_Gus
Tue Jun 18, 2019 10:10 am
Forum: Misc
Topic: proper lambda values before and after catalytic converter
Replies: 5
Views: 234

Re: proper lambda values before and after catalytic converter

Слишком много вопросов. Узкополосный сенсор просто детектирует наличие несреагировавшего o2 в выхлопе. Есть-нет. Поэтому он постоянно туда-сюда скачет пытаясь нащупать грань. Которая в районе 14.7:1. Широкополосный это узкополосный + насос. Который может закачивать o2 снаружи или наоборот выкачивать...
by Dron_Gus
Mon Jun 17, 2019 2:47 pm
Forum: Misc
Topic: proper lambda values before and after catalytic converter
Replies: 5
Views: 234

Re: proper lambda values before and after catalytic converter

Catalic errors sounds like "too slow reaction" or "too fast reaction". AFR after catalytic should be smoother than before.
by Dron_Gus
Mon May 06, 2019 4:54 pm
Forum: Hardware
Topic: 64 pin 176122-6 ECU connector board
Replies: 28
Views: 7807

Re: 64 pin 176122-6 ECU connector board

Subaru were using this kind of connectors up to 1996. Including 76 pin.
by Dron_Gus
Wed Apr 24, 2019 10:12 am
Forum: Hardware
Topic: PNP ECU for Vw/Audi ME7 #51
Replies: 138
Views: 3343

Re: PNP ECU for Vw/Audi ME7 #51

Here is good ap note about ap amp input protection https://www.analog.com/media/en/trainin ... MT-036.pdf .
by Dron_Gus
Tue Apr 23, 2019 1:50 pm
Forum: Hardware
Topic: PNP ECU for Vw/Audi ME7 #51
Replies: 138
Views: 3343

Re: PNP ECU for Vw/Audi ME7 #51

960 wrote:
Tue Apr 23, 2019 1:22 pm
Will the Op-amps fry with overvoltage?
I just need them to survive if shorted to 12V
Depend on current.
Its operation during overvoltage is unpredictable. Moreover one overvotaged amp can affect other is same package. Or shift power rail.
by Dron_Gus
Tue Apr 23, 2019 10:27 am
Forum: Hardware
Topic: PNP ECU for Vw/Audi ME7 #51
Replies: 138
Views: 3343

Re: PNP ECU for Vw/Audi ME7 #51

960 wrote:
Mon Apr 22, 2019 4:11 pm
Is there any other Op-amps that will be fine without?

How about one with higher input voltage range?
This is common limitation for general purpose opamps: input voltage should be within supply voltage range.

Why are you trying to save board space? I thought you have a lot of free space.
by Dron_Gus
Mon Apr 22, 2019 3:43 pm
Forum: Hardware
Topic: PNP ECU for Vw/Audi ME7 #51
Replies: 138
Views: 3343

Re: PNP ECU for Vw/Audi ME7 #51

960 wrote:
Mon Apr 22, 2019 3:35 pm
Now the clamping diodes are the most extensive, and place consuming.
Can they be removed?
Check section 4.1.2 of MCP6004 datasheet "INPUT VOLTAGE AND CURRENT LIMITS"
by Dron_Gus
Sun Apr 21, 2019 1:26 pm
Forum: Hardware
Topic: PNP ECU for Vw/Audi ME7 #51
Replies: 138
Views: 3343

Re: PNP ECU for Vw/Audi ME7

russian wrote:
Sun Apr 21, 2019 1:01 pm
what is this proto board called? I need a couple just in case :)
Protoboard. :)
by Dron_Gus
Sun Apr 21, 2019 11:47 am
Forum: Hardware
Topic: PNP ECU for Vw/Audi ME7 #51
Replies: 138
Views: 3343

Re: PNP ECU for Vw/Audi ME7

If 12V is ok for coil drivers, you can use OUT21..24 PP outputs of 8888.
by Dron_Gus
Sat Apr 13, 2019 12:26 pm
Forum: Hardware
Topic: PNP ECU for Vw/Audi ME7 #51
Replies: 138
Views: 3343

Re: PNP ECU for Vw/Audi ME7

960 wrote:
Sat Apr 13, 2019 12:06 pm
Would it be better with 100K and 150K for example?
Check DS, there is some limitation from ADC side. Source of ADC signal should not have to big output resistance.
by Dron_Gus
Sat Apr 13, 2019 12:24 pm
Forum: Hardware
Topic: PNP ECU for Vw/Audi ME7 #51
Replies: 138
Views: 3343

Re: PNP ECU for Vw/Audi ME7

200 Ohm VS (200 Ohm || 30 KOhm) ~= 395Ohm. 2% make no much sense.
4.4K VS (4.4K || 30KOhm) ~= 3.8 KOhm. 14%.
Knowing additional parallel resistance introduced by input divider you can compensate it in SW.

In case of TPS it will be more complicated to compensate this.
by Dron_Gus
Sun Apr 07, 2019 9:50 am
Forum: Your car & your engine
Topic: Nissan on Frankenso #47
Replies: 162
Views: 3508

Re: Nissan on Frankenso #47

Symptoms look like ground shift.
Do you have separate ground so sensors? Does this ground connected through ECU or mounted to engine?
by Dron_Gus
Mon Apr 01, 2019 10:04 am
Forum: Hardware
Topic: Schematic and PCB review - custom rusEfi board
Replies: 17
Views: 1023

Re: Schematic and PCB review - custom rusEfi board

russian wrote:
Mon Apr 01, 2019 9:09 am
Sorry to hear that :( can you PR any comments which would have helped you?
Your yesterdays comments help a lot. Before PR I'd like to understand if any of boards really uses CONSOLE_MODE_SWITCH_PIN.
by Dron_Gus
Mon Apr 01, 2019 8:44 am
Forum: Hardware
Topic: Schematic and PCB review - custom rusEfi board
Replies: 17
Views: 1023

Re: Schematic and PCB review - custom rusEfi board

Finally!

Properly set-up all EFI_CONSOLE_UART_DEVICE, EFI_USE_UART_FOR_CONSOLE, TS_SERIAL_UART_DEVICE and so on for custom board is real hell.
by Dron_Gus
Mon Mar 25, 2019 2:19 pm
Forum: Hardware
Topic: Suggestions for good ADC solution with minimum components
Replies: 24
Views: 629

Re: Suggestions for good ADC solution with minimum components

Sorry. I thought inputs are from left, output at right.

Then move diodes to the left of U9. Then up resistor of divider will also limit maximum current through protection diodes.

That is what i mean.
by Dron_Gus
Mon Mar 25, 2019 1:56 pm
Forum: Hardware
Topic: Suggestions for good ADC solution with minimum components
Replies: 24
Views: 629

Re: Suggestions for good ADC solution with minimum components

960 wrote:
Mon Mar 25, 2019 1:41 pm
Something like this?




Analogs.jpg
Yes.

But pull-ups and pull-down are after divider. If you are going to have some NTC, you need to move pull-ups/downs before dividers.
Or you pull up will be 2.7 K + 10K that is too much for 1K NTC.
by Dron_Gus
Mon Mar 25, 2019 12:52 pm
Forum: Hardware
Topic: Suggestions for good ADC solution with minimum components
Replies: 24
Views: 629

Re: Suggestions for good ADC solution with minimum components

Injecting current through pin clamp diodes can reduce accuracy of whole ADC. I would suggest to use external protection diode with breakdown voltage less than maximum input voltage for adc. Can you explain a little more? What components to remove and what components I should place where :-) I am fa...
by Dron_Gus
Mon Mar 25, 2019 11:29 am
Forum: Hardware
Topic: Suggestions for good ADC solution with minimum components
Replies: 24
Views: 629

Re: Suggestions for good ADC solution with minimum components

Injecting current through pin clamp diodes can reduce accuracy of whole ADC.
I would suggest to use external protection diode with breakdown voltage less than maximum input voltage for adc.
by Dron_Gus
Mon Mar 25, 2019 10:18 am
Forum: Hardware
Topic: Suggestions for good ADC solution with minimum components
Replies: 24
Views: 629

Re: Suggestions for good ADC solution with minimum components

I have found the IC's I am probably going to use, ADG5462F +voltage divider arrays (0612). This IC will not allow to implement diagnostic of analog inputs. "Under normal operating conditions, if the analog input signal levels on any Sx pin exceed positive fault voltage (POSFV) or negative fault vol...
by Dron_Gus
Mon Feb 25, 2019 8:31 am
Forum: Hardware
Topic: PNP ECU for Vw/Audi ME7 #51
Replies: 138
Views: 3343

Re: PNP ECU for Vw/Audi ME7

Looks like this project has a lot of HW engineers and leaks of programmers.
by Dron_Gus
Thu Feb 21, 2019 8:39 pm
Forum: Hardware
Topic: Help me with stm32f4
Replies: 5
Views: 238

Re: Help me with stm32f4

by Dron_Gus
Wed Feb 13, 2019 1:59 pm
Forum: Hardware
Topic: Schematic and PCB review - custom rusEfi board
Replies: 17
Views: 1023

Re: Schematic and PCB review - custom rusEfi board

Thanks everyone for comments.
First rev was send to fab.
Hope there is no critical bugs left.
by Dron_Gus
Thu Jan 24, 2019 7:59 am
Forum: Другое
Topic: А в РФ можно купить TLE8888QK?
Replies: 6
Views: 577

Re: А в РФ можно купить TLE8888QK?

На этот чип даже есть devboard. И какой-то софт в придачу.

@russian, зачем показал? Я ж почти закончил свою плату. Теперь свербит "выкини все, поставь этот чип".
by Dron_Gus
Tue Jan 22, 2019 6:58 pm
Forum: Другое
Topic: А в РФ можно купить TLE8888QK?
Replies: 6
Views: 577

Re: А в РФ можно купить TLE8888QK?

Много фич за немного денег и очень простой монтаж? Там даташит вроде вовсю про SPI? оффтопик - а у тебя есть Skype или Slack? Да. Посмотрел внимательнее - spi. И даже распиновка более менее удобная. Осталось найти аналогичную мс для аналоговой части. И можно собрать ecu на трех микросхемах. Хотя су...