rusefi.com

Funny thing: L9779 has the same WatchDog question-answer table as TLE8888.
But TLE8888 datasheed just defines answer table for each question and phase.
While L9779 datasheet also provide detailed description how to calculate answers using question, Markov (who is Mr. Markov) chain and binary logic.

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.

TLE8888 will enable MainRelay output as soon as 12V_KEY (connector pin 5) is high.
Check that you are using correct IGN signal for this pin. One of IGNs can be disabled during cracking.

All stepper-related PRs have been merged. Please try.
Don't forget to enable "useTLE8888 stepper" option in TLE8888 dialog.

Just for reference.
Idle/stepper dialog is still too complicated.

JRD McLAREN wrote: ↑

Fri Jan 07, 2022 11:16 am

Cпасибо.

1 of 3 is merged. Lets wait for full merge.

JRD McLAREN wrote: ↑

Mon Jan 03, 2022 10:25 pm

So, it can stay connected to GP1-GP4. Right ..?

Yes.

https://github.com/rusefi/rusefi/pull/3751
https://github.com/rusefi/rusefi/pull/3749
https://github.com/rusefi/rusefi/pull/3748

Tested. Works.

Short to bat means your load is too heavy for this output.
Overtemp is it time to add thermal pad from pcb to bottom half of case. And from 8888 to top part?

JRD McLAREN wrote: ↑

Mon Jan 03, 2022 10:56 pm

..and ask for tle9201 replacement also ..?

Yes. Something like L9960T

Not sure why it should happen but that would definitely be a different board name. As is TLE8888 and L9779-SPI seem like more or less the same thing just from different vendors. I think as long as we can purchase TLE8888 we would stay with it? Yes. I see no reason to switch to 9779 until we (you) c...

Here's what I have

L9779-SPI is a candidate for TLE8888 replacement on MRE.
Some additional cool features (comparing to TLE8888):
3.3 V logic regulator
– 3.3 V precision voltage regulator (± 2%) with over-current protection
ISO9141 interface
–ISO9141 serial interface (K-Line)

Maybe something else.

Stepper was (year or two ago) tested on MRE. It works. Still need some integration into config - ini - tunerstudio.
Still on my TODO list.

Еще, обычно, включают вентилятор, чтобы конденсор обдувался всегда. Так же, если поставить нормальны датчик давления, скорость обдува нужно регулировать в зависимости от давления. Ну и управлять РХХ по давлению и вентилятору для более точного поддржания ХХ. Это не считая временного отключения при в...

Found the info. Page 294: https://www.bosch-motorsport.com/media/downloads/catalogs/printkatalog_2020.pdf Please note: CAN ID0 0x0170 (Rx) is used for synchronization and configuration of the sensor (SYNC). Make sure that the CAN ID 0x170 is not used in your can network by any other device. Thanks ...

https://www.bosch-motorsport.com/media/downloads/yaw_rate_sensor_yrs_3.pdf Please get a databus log, and I'll see if I can find you a wakeup address/packet. It's usually Single byte packet with 0x01 for wake, and 0x00 for sleep Unfortunately I have only this sensor from scrapyard. Not the whole car...

Subaru 27542AG011, Bosch 0 265 005 627
Silent after power on. While replies (ACKs) on other messages on CAN bus at 500K.
Seems need some magic kick to power on?
Consumes 100..110mA@12V.

Details?
What about update rate?

So. Instead of idle and start tuning Due to

цена совсем не гуманная у AEM посматриваю в эту сторону https://github.com/mck1117/wideband Ну из того, что умеет CAN и дизайн не совсем шакальный - AEM разумный выбор. А заблуждение "сам соберу - дешевле выйдет" - это святое. :) Сенсор оригинальный Bosch - 9500. Т.е. сам прибор стоит 5500.

включение муфты от запроса водителя, проверка давления в системе, управление электровентилятором, отключение муфты при открытии дросселя на 100% и при оборотах выше 4000 об/мин. Судя по схеме (датчики давления последовательно с муфтой) - единственная забота RusEFI - включать релее по запросу от кли...

de1phi wrote: ↑

Tue Dec 07, 2021 6:13 am

что в продаже есть в рф за недорого)

AEM X-Series 30-0300. Мне нравится. В Питере есть Andy146 у которого всегда есть в наличии.

AndreyB wrote: ↑

Sun Dec 05, 2021 8:56 pm

One day maybe https://en.wikipedia.org/wiki/XCP_(protocol)

OpenBLT uses XCP over CAN. And may be over some other interfaces too.

I don't think we need more flash addressable by the CPU, right? External flash is useful for logging, and providing burn-while-execute for MCU that don't have dual bank flash, but neither purpose needs memory mapped IO. Some users want switchable tables/tunes. With memory mapped flash there is no n...

STM32F7/H7 has QSPI module that can map external flash to CPU address map. This is cool feature. I use it to store settings. QSPI flash erase+write is much faster than internal.
Some STM32 already support CAN-FD.

One using one hi resolution display with full graphics https://uploads.tapatalk-cdn.com/20211123/f2655796427f6142b74e6fab44f912c6.jpg This one looks like Rightware Kanzi. We did fast-boot demo with Kanzi on Renesas R-Car with Linux few years ago: https://www.cogentembedded.com/linux-android-fast-bo...

BGA will need at least 8 layer PCB. And skilled PCB developer for correct fan-out. We been producing car monitoring systems 10-15 years ago. One was based on AT91SAM9G and another on s3c2416. Both bga. Plus DDR ram. This system been working on heavy trucks with no issue for years. Also BGA soldering...

puff wrote: ↑

Mon Nov 08, 2021 8:44 pm

is it open source (cando thingy I mean)? I wish there were source codes - just curious how difficult would it be to make a similar one, say, out of a blue pill + canbus shield.

You can use open hw compatible with this FW https://github.com/moonglow/pcan_cantact .

Cando adapter https://aliexpress.ru/item/4001164534407.html from Ali tested and works just fine under Linux. [47948.958899] usb 2-1.8.3.2: new full-speed USB device number 21 using ehci-pci [47949.070248] usb 2-1.8.3.2: New USB device found, idVendor=1d50, idProduct=606f [47949.070253] usb 2-1.8.3.2...

Few fought: 1. keep settings, tables as big as you want. On storage. Preload only used tables in ram. Can also solve request having several switchable tables. Will need some kind on software MMU. Dynamic allocation. Can cause out of ram issue during execution. 2. generate ini files on MCU side. Thi...