Fred's firmware development diary

[Fred]

Took a bit of time out to put on display just what a Jaguar has available in it after a friend bought a Link G4 Atom unit with almost no IO at all for 1600nzd/1300usd. :-o Here's the thread:

viewtopic.php?f=67&t=2212

Fred.

[Fred]

Pleased to announce engine 22 has fired up and run, and even more pleased to announce that I caught it live over skype for the very first time! :-)

This is our first 5 cylinder engine, another Volvo, and the only muffler attached spins at ~100,000 RPM ;-)

Watch the vehicles section for a new thread with some video of it any minute now.

Fred.

[Fred]

I'm helping sim do some injector testing via Bench Test packet generation (because MTX wouldn't not crash and EMStudio doesn't have it yet) and decided to parse the results, which gives this:

Code: Select all

Mode: 1 (Output Testing)
Events Per Cycle: 4
Cycles: 400
Ticks Per Event: 15625
Time Per Event: 12.5 ms
Cycle Time: 50.0 ms
Total Time: 20000.0 ms

Scheduled events:
    0: 0
    1: 0
    2: 0
    3: 0
    4: 0
    5: 2

Pulse Widths:
    0: Disabled!
    1: Disabled!
    2: Disabled!
    3: Disabled!
    4: 50.4 ms
    5: 50.4 ms

I can and likely will add some more sophistication to this in terms of detecting overlaps, detecting invalid setups, displaying duty and overall on time on each channel, etc.

Fred.

[Fred]

Re-post for the anti-social-networkers among us:

That second car @ 0:37 looks pretty quick! ;-)

http://www.youtube.com/watch?v=KviOcfhoj1A&t=37

No further comments.

[Fred]

Been very busy working on life stuff. Will be back to the hacking pretty soon (Likely Friday evening, or so, I guess.) and will have some cool stuff to show off pretty quickly, I hope. Assuming Sean runs his LT1, otherwise I resign. Badger him. :-p

[Fred]

Yep, I've finally come out of the closet! Go easy on me. :-p

[Fred]

I won't be pushing any major updates to the firmware until some other things have been taken care of. The worst of these have been outstanding for more than four months. Only one has successfully ended up here in proper form, so far, though that should change soon. Once those things are sorted and finalised, I'll finish off the new RPM code and push it up for general testing and use. I also won't be pushing anymore firmware code at all until Sean tests the dev branch on his LT1 Camaro and gets me an EMStudio log of it. Make it happen, Sean, it's just you now, all other variants are tested OK. Then I'll consider that code adequately tested for general consumption and migrate it to the master branch. There's currently far too big of a gap between them... that's got to change! Ball is your court, my friend!

2.5 months on, and I'm starting to get pissed off about this. How about you users and/or fans of FreeEMS? Not pissed off yet? Perhaps you should be! No commits out of me (pushed) for 2.5 months and no testing on the LT1 for 2.5 years. I'm NOT going to push anything more until he tests that car with vanilla code.

If this goes on much longer I might replace the forum with a simple page with Sean's email address and a message saying to thank him, and fuck off to the beach to relax. What's the point? If your right-hand-man can't do the bare basics and fire up his engine, what's the point at all? Not much IMO.

Fred.

[Fred]

New facebook page dedicated to Sean now setup and already with 30 fans! https://www.facebook.com/StarOfDavidEFI

"For people that wish Sean would keep his Camaro up and running on vanilla FreeEMS code at all times."

More popular than I thought.

Fred.

[Fred]

I have a speaking engagement about FreeEMS sponsored by IBM in a few weeks. There will likely be footage, so I'll post up a thread and/or link when it's available.

I'm VERY busy on many things, and won't be updating this much, but there will be progress occurring regularly in various corners of the project.

November will be a BIG month for FreeEMS, for sure. I'll post more on that closer to the time. Trust me, though.

Still no progress on the Camaro. No news from Phoenix so far. Sad Fred.

Fred.

[Fred]

Camaro has had its battery removed! But no new one installed... More news as it comes to hand.

Copy/paste:

Random interesting(?) FreeEMS facts:

- There are now more of you [439] than I have of fb "friends"
- Less than 20% of you are my fb "friends" (used to be ~100%)
- Consistently, 1 new engine has run every 6 weeks for 2.5 years!
- Vehicles run span from 1932 to 2007, a total of 75 years!
- We've run 4, 5, 6, and 8 cylinder engines, but no 1,2,3,10,12,16, yet.
- Those engines have redlines ranging from 6k to 14k!
- The 22 engines run are from 12 different brands!
- We've run turbo, ITB, and NA, but no superchargers.
- FreeEMS has run engines in 9 countries, with 6 more "soon".
- 610 mainline commits have been made to the firmware since 2nd March 2011
- Hundreds more have been made to various branches by various people
- All of this has been achieved using just 3 or 4 main 3D tables (from 16 currently available)
- Those tables are variable size, some use 12x8, others 16x16, 24x19, 25x16, etc.
- Data streaming and packetisation makes logging very simple, just write what you see. Parse into human form later.

Can you think of any other interesting facts about FreeEMS? Humour welcome ;-)