Author Topic: CMOS/ADTG/Digic register investigation on ISO  (Read 905597 times)

names_are_hard

  • Developer
  • Hero Member
  • *****
  • Posts: 934
  • Dev: 200D, 750D, 850D, 7D2
Re: CMOS/ADTG/Digic register investigation on ISO
« Reply #1250 on: July 21, 2023, 07:17:19 AM »
Okay, thanks for the correction!  So the symptoms are real, but the wild guesses at causes are just that :)

This may fix the problem:
https://drive.google.com/file/d/1RT2dI0VMUoN_QGSvLYhxu-wmAHpXShhk/view?usp=sharing
Works okay in qemu, I don't own 5D2 so I can't test further than that.  Try at your own risk.  It's a small change though so I'd expect it to work.

I applied this fix to iso-research branch and rebuilt:
https://foss.heptapod.net/magic-lantern/magic-lantern/-/commit/035648f634448331cc93af393ffbb70cc05daf34

Why are there so many branches? :(

Walter Schulz

  • Contributor
  • Hero Member
  • *****
  • Posts: 8952
Re: CMOS/ADTG/Digic register investigation on ISO
« Reply #1251 on: July 21, 2023, 06:56:21 PM »
Looks good. Shuts down and restarts without issues.

names_are_hard

  • Developer
  • Hero Member
  • *****
  • Posts: 934
  • Dev: 200D, 750D, 850D, 7D2
Re: CMOS/ADTG/Digic register investigation on ISO
« Reply #1252 on: July 22, 2023, 12:54:11 AM »
Great, thanks for testing.  Bug introduced only in lua_fix and iso-research in 2019, fixed in 2020 in lua_fix but not ported across.

Markelian

  • New to the forum
  • *
  • Posts: 11
Re: CMOS/ADTG/Digic register investigation on ISO
« Reply #1253 on: July 23, 2023, 12:08:03 PM »
I've never seen anyone call a build "bricked" before.  Hard to imagine what that would mean.

The post you reference is from 2012, with the user not using this build at all, so I don't think it's relevant.  No, having both LEDs lit doesn't mean the processor is locked up and heating rapidly.

I see no evidence that this is damaging cameras, do you have something specific?  It's explained that ML can crash and temporarily lock up your cam, and that you should remove the battery if this happens.

Thanks for the new build names_are_hard, and thanks Walter for confirming issue! You carry a lot of legitimacy, and with that, a lot less resistance to your words.

My apologies for using weird terminology (i understand "bricked" is a specific hardware term and it might not apply here). I was corroborating the 2 posts above my post which say the same thing, hoping if enough of us bump thread something maybe happens (even though i dislike saying that because it places expectation on others, but im not good at coding). Also sorry i should have specified i was talking about last iso-build, i said that nowhere and just assumed other will be able to guess, that was not ideal of me.. if i had to rewrite that post there's a lot i could change to make it clearer.




names_are_hard

  • Developer
  • Hero Member
  • *****
  • Posts: 934
  • Dev: 200D, 750D, 850D, 7D2
Re: CMOS/ADTG/Digic register investigation on ISO
« Reply #1254 on: July 23, 2023, 01:35:40 PM »
No problem, phrasing was just a bit confusing :)

Did you test my fixed build?  And, why are you using this slightly weird iso-research build anyway?

Markelian

  • New to the forum
  • *
  • Posts: 11
Re: CMOS/ADTG/Digic register investigation on ISO
« Reply #1255 on: July 24, 2023, 02:35:21 PM »

No problem, phrasing was just a bit confusing :)

Did you test my fixed build?

Yes sir, works a treat.
And, why are you using this slightly weird iso-research build anyway?
I wanted to play with the ISO registers and see if i can get any more DR out of this camera, and that was the latest build on the site (what other could i have used?) . I also tried looking for some older ones within the thread but all that i found using search seem expired (404)..

names_are_hard

  • Developer
  • Hero Member
  • *****
  • Posts: 934
  • Dev: 200D, 750D, 850D, 7D2
Re: CMOS/ADTG/Digic register investigation on ISO
« Reply #1256 on: July 24, 2023, 04:06:05 PM »
Cool, works for two people, better confidence.

Sounds like you're using the build for the right purpose - we get people who end up on some random build due to strange search results or whatever, just wanted to check.  Good luck, and let us know if you find anything interesting!

Markelian

  • New to the forum
  • *
  • Posts: 11
Re: CMOS/ADTG/Digic register investigation on ISO
« Reply #1257 on: July 24, 2023, 05:36:53 PM »
Ah i see :) Will do, and thank you for the help! 

Skinny

  • Senior
  • ****
  • Posts: 291
Re: CMOS/ADTG/Digic register investigation on ISO
« Reply #1258 on: July 24, 2023, 09:02:46 PM »
Please report here if you find anything interesting :) I love 5D2