GH1 firmware research volunteers required

[ai_torito]

outbreaker:
all those messages are normal, but when you press 'c' the first couple of bytes should turn into something like:
mov 0x40000018, A1
jmp (A1)

maybe it's a typo in your post, but the correct loading address is 0x40000000
also, there are checksums in the .bin file that you need to remove

or maybe you simply expected more to happen

[nikgid]

I believe people sometimes concentrate on technical stuff instead of normal ideas, script, lighting and acting.

Oh yes! That would be too good to be true! Please realize scripting possibilities for the G[HF]1 somehow, sometime in the future.
That feature is for example one of the main strengths of the "Canon Hackers Development Kit" - CHDK (http://chdk.wikia.com/wiki/CHDK_BARTHIBAN)
... via scripts there are features available like motion-detection (for lightning photography etc.), all kinds of advanced bracketing, timelapse etc. - scripting capability would be the gateway for many features!
And with a well-documented scripting language implemented (like Lua in CHDKs case) there will be more developers being able to help produce features (in form of scripts) on an easier level (than assembler).
But I understand this would be a major milestone - if it is possible at all. But it would be sooo awesome!
Maybe some of the old CHDK-developers there might even be willing to use their experience on a really decent camera for a change

Just to dream about all those possibilities makes me happy

[outbreaker]

ai torito :

Thanks. You're right. I could find what you said. I had known wrong loading address..
I tried again with new loading address 0x40000000, and I have following..

mov unk_40000018, A1
jmp (A1)


What should I do to remove checksum from .bin file ?
What would I see if I remove checksum from .bin file ?

[nikgid]

Maybe some of the old CHDK-developers there might even be willing to use their experience on a really decent camera for a change

Just to dream about all those possibilities makes me happy

To get this dream to become a reality I posted in the CHDK-forums for development of non-Canon-cameras to try and get some of the veteran CHDK-developers interested.
See here: http://chdk.setepontos.com/index.php...0.new.html#new

Just trying to help with doing some "networking" - I hope this is okay and wanted. If not, please tell me.

[Chibs]

I believe people sometimes concentrate on technical stuff instead of normal ideas, script, lighting and acting.

That's because this is a thread about technicality, and not about script, lighting, and acting.
Not to disregard your work, but I currently see no point in getting GF1 and G1 bodies, you are working alone and working on seperate cameras would only increase the amount of work and lessen the results..

[outbreaker]

I studied about checksum for mn103 series.

Sparkie from CHDK said "After every 32 bytes there's a 2 byte checksum that needs to be removed before you can start doing any disassembly."

Is there any tool to remove checksum ?

[Vitaliy Kiselev]

That's because this is a thread about technicality, and not about script, lighting, and acting.

And you re wrong here.
We must constantly remind people that real limitations lie in their minds and these things, and not in bitrate, etc.
This do not mean that we must not be trying to improve GH1, it just means that most problems are not solved by the patch.

Not to disregard your work, but I currently see no point in getting GF1 and G1 bodies, you are working alone and working on seperate cameras would only increase the amount of work and lessen the results..

And I see big point in this.
We have good reasons to get this bodies.
First, many people donated especially to have some patches ported to their cameras.
Second, we need to test many risky patches and two bodies complement each other very good in this area.
Third, I have special tools to port our work from GH1 to G1 and GF1 and back.

[Vitaliy Kiselev]

I studied about checksum for mn103 series.

You are wasting your time and my time.
As I already said, we'll get G1 nd GF1 bodies soon, so all patches will be ported.
I want to keep this project as legally clean as possible. So, porting starts as soon as they'll be bought.
CHDK guys are very good and smart, but they have legality problems written all other them and I don't want to give chance to shut this project because of this.

[Park Edwards]

can someone explain the legalities of hacking firmware? if you're not selling anything, how are you breaking any laws? i didn't see anyone get arrested for modding their xboxes. this is the same concept. i have never once seen or heard of a person on the news that was arrested for hacking/modding an electronic. your camera, do whatever you want, you just void the warranty.

[Barry_Green]

"selling" has nothing to do with "legal". Do you think all the people who rip and upload movies and music to free filesharing sites are "selling" something? They're not. But it's still illegal.

The owner of a copyrighted work has a right to determine how that work gets distributed, or even if it does get distributed. The firmware in a camcorder is a copyrighted piece of computer code. tester13 is taking the right approach when he refuses to redistribute someone else's copyrighted work. Instead, he's telling people where they can get it, and then allowing modification of it. If he modified it and redistributed it, then he would be violating the copyright in exactly the same degree as if someone took your film from you, changed it around a little bit, and distributed it.

Whether he's charging money for the service or not, doesn't change the underlying legal issue of taking someone else's property and distributing it without authorization. tester13 is doing it the right way.

[Path]

Barry is right here. And to tester's point about owning a GF1, the Copyright Act states that an owner of a copy of software can copy for their own use. IANAL, but I would venture a guess that copyright issues surrounding software can get very complicated. There's the difficulty of ideas vs expression, that for software can be tricky, not to mention trade secrets, etc. I think Tester is being rather smart and has shown he knows a thing or two about this issue.

[j1clark@ucsd.edu]

can someone explain the legalities of hacking firmware? if you're not selling anything, how are you breaking any laws? i didn't see anyone get arrested for modding their xboxes. this is the same concept. i have never once seen or heard of a person on the news that was arrested for hacking/modding an electronic. your camera, do whatever you want, you just void the warranty.

This was from quite a few years ago now:

Norway Cracks Down on DVD Hacker
Declan McCullagh Email 01.10.02
DeCSS developer Jon Johansen.

WASHINGTON -- Jon Johansen, a Norwegian teen hacker, has been indicted for allegedly bypassing DVD anti-copying technology.

Read More http://www.wired.com/politics/law/news/2002/01/49638#ixzz0oVrmE4f1



This hack allowed such operating systems as Linux to play DVD's, as the big studios refused to license to the 'linux' community, even if one was playing legitimately purchased DVD media.

Further, the hack allowed people, like myseilf, to play Region 2 DVD's in Region 1... because some idiot decided that people in Region 1 only want to have English, Spanish, or French (occasionally some asian languages...), in either dubbed forms or subtitled forms of disks coming from Region 2... (who ever wants anything from region 3...)

The same imbeciles are at work with Bluray which restores the regioning idiocy... HDDVD didn't have regioning...

[j1clark@ucsd.edu]

Barry is right here. And to tester's point about owning a GF1, the Copyright Act states that an owner of a copy of software can copy for their own use. IANAL, but I would venture a guess that copyright issues surrounding software can get very complicated. There's the difficulty of ideas vs expression, that for software can be tricky, not to mention trade secrets, etc. I think Tester is being rather smart and has shown he knows a thing or two about this issue.

Sometimes the EULA, that everyone technically agrees to, who uses the software, even if tacitly by 'running/using' the software, has explicit anti reverse engineering clauses. You are usually granted a 'use' license, pursuant to agreeing to the terms of use.

The usual way people work is they start the machine, run the softare, and blindly click 'accept' when asked in regards to the EULA... never having read the details...

[Barry_Green]

That also is correct, although I'm not 100% clear on how tightly an EULA binds someone. Just because something's in a contract, if it's not enforceable, then breaking that part of the contract isn't "illegal". For example, if the EULA that you blindly clicked on has a phrase that says "by accepting the terms of this contract, you agree to enslave your children for our nefarious uses", well... slavery ain't legal, so even if it's in the contract, and you agreed to it by clicking on it, you're still not bound to it... it's also been reported that the American Idol contract that the contestants sign restricts you and your family and your friends from having any personal relationships with the judges. Problem is, you can't sign a contract that binds your family and friends in any way. So, yeah, it's in the contract, but it doesn't actually mean anything.

I'm not saying the reverse-engineering clause is the same; what I'm saying is I don't know what is or isn't actually enforceable. But something as simple as redistributing the content, that's obviously enforceable.

[TurboTwo]

I donated a few weeks ago, but it bounced back. Seeing as a GH1 is on its way, any chance that someone can set up a new Paypal account so that the money donated goes straight to Tester13's pocket?!

Propernice..A while back there were some issues with the Paypal donations which have since been resolved,some others i believe experienced the same as you and Car3o and Tester sorted the problem i believe.So the Donation button on page 1 is now working.
I`m pretty sure Tester posted that any donations are purely for research purposes ie,To buy GH1 body,cards etc..not as a fee. :-)