Megasquirt Support Forum (MSEXTRA)

I'm compiling for MS3 and MS2, the same process will work for both code sets. I got the setup working on a 32 bit version of cygwin.. Took me a while to find an old 32 bit download.

With DD EFI taking ownership of DIY Autotune will there be any more MegaMeets? We have not had one in 9ish years.. 2014 or 2015 was the last one. Travel restrictions have been lifted for just about all countries coming in and out of the USA. This would be the time to sort out a spring or fall next y...

I was able to get a Ford 6G alternator working using my MS3 to control the desired output voltage. I put together a video of the settings and how it works.


https://youtu.be/Mz5kzR9Xh6o?si=3UYK3E5hyM6nHWH6

Convert the voltage to 10 bit adc.. 0 to 1023.. then graph the ADC to distance in excell and have excell give you a formula for the line/curve. Then in megalog viewer create a custom math output to convert the adc to a distance using your formula from excell. I did this for converting baro kpa to fe...

MAT/CLT correction is a blend of MAT and CLT.. The correction moves with RPM and MAP to simulate air flow through the being a percent of CLT and MAT values. Low rpm, low load will cause the CLT to add energy to the MAT as it moves through the intake tract. IMHO the MAT/CLT correction is for those wi...

I was driving a 6R80 from my MS3 box after quite a bit of hardware and software modifications.

https://youtu.be/3Uc49a0k2_s

I really need to poke around with a teensy4.1 and build something for testing.

One of the challenges is the frequency that the solenoids need to run at. Some docs I've found on the 6R80, show 500 hz. Not high at all but beyond the software PWM used in the MS2 based microsquirt hardware to give any good resolution. Some docs showed a jitter being added to the PWM signal to keep...

I suppose you can limit the response mechanically also. Have the full range of the servo only yield a 30% sweep of throttle input. Or some sort of cam deal where the first 50% of servo movement only gives 30Ish% throttle to soften the flat level ground cruise speed while the last 50% servo give a sn...

Looking at the TPS and closing the loop around TPS% to slow down how quickly you close in on the MPH error. **Example... desired speed is 70 mph and your at 65.. current TPS is 15% and you think that adding 5% more throttle will help get you the added 5mph your looking for. Instead of wacking the th...

I'm not sure if its some fire wall thing for me at work but I tried the windows 2012 tool and linux DL and neither link started the download zip..

http://www.msextra.com/tools still works for me.

**edit** the page works put the links don't.. uhm..

Find the download tab at the top of the forum page. I think 3.4.2 was the last release with the source code included. There is a tool chain that needs to be downloaded which is also available.

I use Cygwin(32 bit) within windows to compile the source.

Ryan

This might be a worth while feature for the masses. I added this on FW1.4 source code almost a year ago. I upped the resolution to 12 bits instead of 8, this gives 8 times the control over pump speed. I'm sending the CAN message to a Teensy3.2 at the rear of the car which then send a serial message ...

okay, well.. got it sorted with Cygwin 32 bit on Win11 64 bit.

I found the saved downloaded files on an older laptop, I was able to copy that file over to a thumb drive and used those for the install prompts in the x86 setup in Win11.

What a pain that was.

piledriver wrote: ↑Sun Jan 15, 2023 6:17 pm Subsystem for Linux v2... if you are on Win11... should work, cygwin no longer needed, it would probably just get in the way.

Can you provide a step by step of what to DL/install in what order? and unzipping the tar file? then how to make the ini and s19?

Thanks Ryan

What compiler are we now using since Cygwin only supports there new X86_64 setup? I'm now on a Win11 box and I was able to produce a new .s19 and .ini fille but once an edit was made to a .c file the corresponding .o file would produce an error on the "make ms3" command. Has anyone sorted ...

Made a Win11 box and tried to install Cygwin_X86_64 and it looked like it was working.. it would compile... maybe.. it made a new ms3.ini file and a new .s19 with todays dates on it. But when I opened notepad++ and made an edit and saved then tried to run the "make ms3" it failed on the .O...

Digging up this old thread again.. I'm in Tucson and can help out anyone in the Tucson/Marana/Vail area. PM here or email ryandenney347 at gmail.

Hey all.. it's been quite a while since I've past through here. Just an update on my software adventures. 8) I picked up a 4D systems touch screen display some time ago and decided to sort a way to receive CAN messages into a teensy3.2 that I'm using to drive portions of my factory 64 Falcon dash. I...

This work was done when I was working for https://hfeinternational.com/ I customer in San Diego was using the engine for a quadcopter to generate electrical power to drive the motors. We fitted the EFI system to the engine.