rusefi.com

After some research I managed to find the connector for my Accord: https://www.te.com/usa-en/product-179686-6.html
It should fit most Hondas between years 96-2002.

There are some in stock at mouser.
Feel free to add this to the documentation.

Just came across these: http://www.ti.com/product/tps54340/description

Automotive rated, 3.5A and only half a buck on aliexpress (also available on digikey/mouser etc)

https://www.aliexpress.com/item/TPS54340-SOP8-Conv-DC-DC-4-5V-to-42V-Step-Down-Single-Out-0-8V-to/32857633519.html

You don't even need a single table in memory, just the current computed output values

russian wrote: ↑

Wed Mar 28, 2018 11:47 am

V8Volvo245 wrote: ↑

Wed Mar 28, 2018 7:17 am

Does it not run in closed loop normally?

Well, you are right - there is closed loop. I am just not aware of anyone using it So yes, ECU uses one o2 sensor for closed loop. No idea how to use two o2 sensors, any proposals?

Just bind each sensor to a set of cylinders for fuel offsets.

Found some detailed documentation for the sensor: https://www.ecotrons.com/files/Bosch_LSU49_Tech_Info.pdf

GTM doc http://www.st.com/content/ccc/resource/technical/document/reference_manual/group0/a7/9e/ba/61/bf/4e/4c/36/DM00091883/files/DM00091883.pdf/jcr:content/translations/en.DM00091883.pdf Seems like it's another closed technology with paid tools: https://www.tasking.com/products/gtm https://www.tas...

I've had this kind of project in mind for a few years now... had even made a pcb using a beaglebone, but never finished it. The idea was to create a base board for an existing cpu board (now it would be a cheap SODIMM A20 SOM) to drive the LCD and an STM32 to handle the IO. You can even add fancy ba...

http://bmwmotorcycletech.info/ionization-current-sensing-ignition-susbystem.pdf

Not sur how one could retrofit these.

Congrats!!

Versailles, 78000, France

Another good reason to use hardware timers for signals, as I advised :) Right now the signals are triggered via software from a timer interrupt, which is not as precise. (but you get more outputs and flexibility) You can do that with a general purpose MCU, 1us resolution is easy to achieve with a 32...

For first step my idea is two use the user button to switch between USB port modes: normal mode serial USB, is reset while holding button it would be mass storage instead. Theoretically a composite device could be possible but that's above my current USB skills. I can try implementing composite dev...

These are starting to appear on aliexpress: 1.5Mhz, synchronous, small, very cheap :) https://www.aliexpress.com/item/Smart-Electronics-XD-45-Mini-360-Model-Aircraft-DC-DC-Step-Down-Power-Supply-Module-Better/32482324438.html Datasheet http://www.haoyuelectronics.com/Attachment/MP1584/MP1584.pdf I o...

Yes, using vanilla 16.1.x and contrib repo.

I'm doing everything in C so I probably won't re-use any rusefi code.

I won't use any ASICs in this project, so no, it will be 100% discrete and directly measured by the MCU just like knock.

Yes it's simply connected to a buffer opamp with a dc blocking cap and biasing at 1/2 VDDA.
I have a dedicated ADC for this.

There's a graph on my app that shows the FFT result.
ARM provides a DSP library, it's not too complicated to use.

I'm working on this for some time now... had not touched it for almost 2 years, but I finally finished(ish) it! Motolink is a fuel mapper, which is a device that will read values from various sensors (rpm, tps, afr) to create 2D maps containing measurements. Why would I need this? Is it like power c...

I really don't see the point of starting over with lack of drivers, community support, documentation etc just because it's 5v and "Automotive qualified".

If it had some kind of timing co-processor (or dual core) why not, but it's just another general purpose MCU.

Check your PATH, restart windows if you just installed GCC.

No, CAN PIDs are standardized, just like K-line, KWP2000, etc etc.
Both can have custom PIDs but the message format is the same.

That should work just fine, as long as you have the 1 Watt - 900 Mhz version.

What's the point of implementing ISO9141-2 when we have CAN bus?

I understand these LORA modules are reasonably good for this kind of thing. https://octopart.com/rf-lora-868-so-rf+solutions-66465173 http://www.newark.com/rf-solutions/gamma-868-so/lora-transceiver-868mhz-9-6kbps/dp/68Y7682?mckv=k4M2bM8I&gross_price=true&CATCI=pla-289295517529&CAAGID=2...

https://www.rcgroups.com/forums/showthread.php?2037442-Ultimate-LRS-40-km-APM-Telemetry-RC-link-for-54-(using-2-OrangeRX-1W-TX) Basically we could mod this to send any kind of serial data we want, over long distances, full duplex :) If you want to use the transceivers directly: http://www.hoperf.com...

Have a look at this: http://openlrsng.org
There are a ton of videos about it as well.

Some people make it work to 100Km+ with the right antennas, so around a track it should work just fine if the base station is in the middle.

You can't use USB and CAN at the same time on the F1.

Stay away from it, it's full of silicon bugs.

If you want to do a USB-CAN bridge, go for a F072 lqfp32.

The ADC is always 1K/8pF as far as I know. So increasing resistor values might help here. ;) Edit: it's up to 6k, at 1.8V. Gets lower as VDD increases. Sampling cap is 4pF for F405 devices. It does not change with frequency. (maybe you are referring to "Rain" which is the max source impeda...

You can also change to a modern regulator that uses a higher frequency.
ie: http://www.ti.com/lit/ds/symlink/lm22670.pdf

Full range of replacements here:
http://www.ti.com/ww/en/simple_switcher/regulators.html

No sure if this is the right place but... Have we checked if using a separate LDO for analog is actually better than trying to filter VDD? I'm pretty sure you can reduce noise using a cheap low noise SOT23 LDO. This is what I did, went from ~30mV to ~2mV ripple on ADC values using a LDK120DM33R. One...

By output I meant the opamp's which is connected to the ADC input.