GH1 firmware research volunteers required

[Vitaliy Kiselev]

Just for fun found quite common random number generator function (Mersenne Twistor).
Here is it's code (only rndm function):
http://root.cern.ch/root/html/src/TRandom3.cxx.html

Could be used for encryption of newer firmwares, btw :-)

[Vitaliy Kiselev]

I don't think this is the case, as on my Sony the composite output works fine during video recording. If they have an issue with supporting both they could switch off the LCD when the composite is in use.

Different hardware have different specifications.
Main CPU for this LSI chips is generally quite slow.
All other parts are dedicated hardware and if it was not designed having composite working with LCD and simultaneous recording it won't happen.
Camera read sensor (with line skipping) ->store this at RAM -> make debayering->store resulted image in RAM->scale image to viewfinder or LCD size, scale same image to composite size, and finally encode this image and store resulted data on SD card. Storage is in separate thread, compression and scaling are cruicial tasks, and if it can't scale to two different images and encode whole image at same time it just means that it can't. But as soon as encoding is not performed it can do this on time.

[tyampel]

[quote=tester13;1968305]In fact it looks that you just went too fast. :-(
As we now know actual upgrade was not necessary to make jet. :-)
As I understand, if using make_fps.bat you could have 24fps camera with 99% probability :-)
And it is not possible to downgrade, as far as I can understand?

It looks like Panasonic allows for downgrades of firmware.

I tried this with my LX3 and it works. I could revert form 1.3 to 1.2.
So it looks like the camera will allow any update that is different from the current one.

Good luck and thanks for the effort.

[DanDOF]

I donated. Car3o whats the total donations so far?

[Park Edwards]

Tally so far is $113.75. One person donated a whopping $50.00!

Also wanted to advise, that if within 60days everything goes to poop, I have the option to refund all the donations.

[TurboTwo]

$113.75 `s not to bad!..i just added a bit to that and will add a bit more when i`ve got some more to spare..How much do we need to raise by the way?

[DrBlaz]

Thanks. It looks that it checks only few bytes, then load whole firmware into memory, check digest and you get this error.
We also want someone with V1.21 to try it, as it seems that their version do not see update image, so we didn't change some version specific constants.

Next time, post photos of whole process, including progress bar and resulting message.
Timing is also interesting.

tester13, the process is exactly this:
http://panasonic.jp/support/global/c...s/step_bg.html

when the green progress bar is about 20%, like on <Fig.6 Version up on Going.> , the process interrupts and shows a message "turn the camera off and then on again". It takes only 5 seconds.


for testers: the battery must be fully charged or the "no valid image" message will appear when trying to load the new firmware.

[Svart]

$113.75 `s not to bad!..i just added a bit to that and will add a bit more when i`ve got some more to spare..How much do we need to raise by the way?

Around 600$ for a GH1 body from EBAY.

[alignment1]

for testers: the battery must be fully charged or the "no valid image" message will appear when trying to load the new firmware.

What about using the power supply?

[TurboTwo]

Thanks Svart..i`d better raid my piggy bank..

[dmpsk8]

Don't know how I missed this thread!

Best of luck on the proj, I'm stoked

[Vitaliy Kiselev]

Thanks for donations, guys.

BTW it is good for donations to list all participants (on first page), if they are not against it.

[alignment1]

donation on the way- I had to add funds to my Paypal acct.
Gonna take a couple days prob.
...none the less count me in!!

I don't know what the heck your saying most of the time but GOOD WORK TESTER13!!!

[Vitaliy Kiselev]

Found same procedure on TZ5.
Only logic is the same, code is very different.

[Tameside]

Have made a small donation

If it looks as if you are making genuine progress, I will add a bit more next time and if you complete a bit more again, suggest most people approach on that basis ie bigger and bigger incentive to complete, keep it going tester13