Author Topic: DIGIC 8 'PowerShot' development (M50, SX70, SX740) (Read 234123 times)

dfort · « **Reply #125 on:** April 13, 2019, 02:09:33 AM »

Here's the obligatory "Hello, World!" shot of the M50 running firmware version 1.0.2.

Pull request submitted:

https://bitbucket.org/hudson/magic-lantern/pull-requests/955/m50-update-to-canon-firmware-version-102/diff

lorenzo353 · « **Reply #126 on:** April 13, 2019, 10:46:00 AM »

Quote from: aprofiti on April 11, 2019, 08:48:41 PM

Easy way is to use Qemu with a faked value in src/fw-signature.h and let it print what src/reboot.c expect to be
You can find it under "Canon CanonModelID Values" at https://sno.phy.queensu.ca/~phil/exiftool/TagNames/Canon.html or https://github.com/lclevy/libcraw2/blob/54caceb6aa3ec8aff1ae3102a498cb5438a75d74/docs/cameras.txt

Are they discovered from image metadata?

Also usually last digits are printed on serial console by the camera at firmware startup (ex. K412) and is reported under Model ID of the rom dumper.

you can use Exiftool to extract modelId from raw (CR2, CR3) or jpeg.

C:\Users\laurent>exiftool -CanonModelId d:\cr3_samples\m50\canon_eos_m50_02.jpg
Canon Model ID : EOS M50 / Kiss M

C:\Users\laurent>exiftool -CanonModelId d:\cr3_samples\250d\sample01.jpg
Canon Model ID : Unknown (0x80000436)

C:\Users\laurent>exiftool -CanonModelId d:\cr3_samples\r\447A0582.CR3
Canon Model ID : EOR R

for CR3 you can study parse_cr3.py
https://github.com/lclevy/canon_cr3

for CR2 see this poster : https://github.com/lclevy/libcraw2/blob/master/docs/cr2_poster.pdf,
it is stored in Makernote

you can also use craw2tool : https://github.com/lclevy/libcraw2/blob/master/user_manual.md

dfort · « **Reply #127 on:** April 13, 2019, 09:15:51 PM »

Thanks for the tips.

Quote from: dfort on April 12, 2019, 02:06:32 AM

...the M50 hasn't been integrated into exiftool...

Oops, needed to update my exiftool. Now it works properly:

Code: [Select]

exiftool -CanonModelID IMG_0003.CR3 
Canon Model ID                  : EOS M50 / Kiss M

I had an old version and the best it could so was this on jpeg files:

Code: [Select]

exiftool -CanonModelID IMG_0003.JPG 
Canon Model ID                  : Unknown (0x412)

By the way, you can get the latest version of exiftool through the ML build scripts:

magic-lantern/modules/dual_iso/Makefile.cr2hdr

Code: [Select]

# Find the latest version of exiftool
EXIFTOOL_VERS=$(shell echo $$(curl -s https://www.sno.phy.queensu.ca/~phil/exiftool/ | grep -Em 1 'Download|Version' | grep -Eo '[0-9]+([.][0-9]+)?') | cut -d ' ' -f 1)
...
exiftool.tar.gz:
# Mac and Linux
	wget http://www.sno.phy.queensu.ca/~phil/exiftool/Image-ExifTool-$(EXIFTOOL_VERS).tar.gz -O exiftool.tar.gz

exiftool.zip:
# Windows
	wget http://www.sno.phy.queensu.ca/~phil/exiftool/exiftool-$(EXIFTOOL_VERS).zip -O exiftool.zip

That Makefile can also compile the latest dcraw and cr2dhr. Check it out.

aprofiti · « **Reply #128 on:** April 15, 2019, 08:13:42 PM »

Quote from: lorenzo353 on April 13, 2019, 10:46:00 AM

you can use Exiftool to extract modelId from raw (CR2, CR3) or jpeg.

Thanks, you just confirmed my initial thinking on how it was discovered for newer models

Quote from: lorenzo353 on April 13, 2019, 10:46:00 AM

for CR2 see this poster : https://github.com/lclevy/libcraw2/blob/master/docs/cr2_poster.pdf,
it is stored in Makernote

Had a look at the poster and it helped me to understand better how offsets are handled inside the file format

Quote from: lorenzo353 on April 13, 2019, 10:46:00 AM

you can also use craw2tool : https://github.com/lclevy/libcraw2/blob/master/user_manual.md

@lorenzo353 I also looked at your library when tried to manipulate exif tags in cr2 image, but if I don't remember wrong it's not minded to overwrite metadata.
Do you have any suggestions?

ioman · « **Reply #129 on:** April 17, 2019, 11:32:55 PM »

Hello. I just wanted to ask - how is the current state of ML port for M50? I would need bracketing function as I believe its not possible with the original firmware. I would also help contributer as I am developer, but I am javascript specialist and I think there is no use of that.

Thx.

scrax · « **Reply #130 on:** April 18, 2019, 04:28:05 AM »

Quote from: ioman on April 17, 2019, 11:32:55 PM

Hello. I just wanted to ask - how is the current state of ML port for M50? I would need bracketing function as I believe its not possible with the original firmware. I would also help contributer as I am developer, but I am javascript specialist and I think there is no use of that.

Thx.

Welcome, you can start by clone repo, setup the toolchain and try to compile ML, that way you can follow development and make your tests, give feedback, make small changes (at first) and who knows that maybe the next big discoveries will come from your findings...

I'm thinking to get a M50 too, even if I was more interested in the RP but the new firmware signature freezed my hopes (for now)

KelvinK · « **Reply #131 on:** April 18, 2019, 10:04:20 AM »

@scrax Getting M50 now is a good choose! Ultra cheap, Viltrox SpeedBooster and with ML it will be a small beast.

scrax · « **Reply #132 on:** April 18, 2019, 10:18:57 AM »

Quote from: KelvinK on April 18, 2019, 10:04:20 AM

@scrax Getting M50 now is a good choose! Ultra cheap, Viltrox SpeedBooster and with ML it will be a small beast.

Exactly, those are the reason mainly.

ioman · « **Reply #133 on:** April 18, 2019, 10:26:01 AM »

Ok, I will try to compile. I can compile and run QEMU even when I have not M50 yet right?

As for the cheapness.. do you think it could get cheaper maybe in 6 months? (canon about to release 2 new M models).
The current price is still to much for me. Now I have M10 and I need to go to M50 (big improvement.

)

Regards,
Jakub

scrax · « **Reply #134 on:** April 18, 2019, 10:44:51 AM »

Quote from: ioman on April 18, 2019, 10:26:01 AM

Ok, I will try to compile. I can compile and run QEMU even when I have not M50 yet right?

As for the cheapness.. do you think it could get cheaper maybe in 6 months? (canon about to release 2 new M models).
The current price is still to much for me. Now I have M10 and I need to go to M50 (big improvement. )

Regards,
Jakub

I was thinking you already had it; to run qemu you need a dump of the firmware from the camera you want to emulate

ioman · « **Reply #135 on:** April 18, 2019, 01:55:32 PM »

Ok, and there arent any dumps from someone who has the camera?

Regards,
Jakub

Walter Schulz · « **Reply #136 on:** April 18, 2019, 02:25:18 PM »

Not for sharing here. ML team considers public sharing/posting ROM dump contents violating Canon's IP rights. 2 options:
- Shout out and hope someone will reply by PN to a new member.
- Prepare a card with a ROM dumper and find a way to use it with an M50.

ioman · « **Reply #137 on:** April 18, 2019, 04:09:05 PM »

Ok, got it. In my local camera shop they allow me to test the M50 with my card anytime I come here so this might be ok.

Jakub

ughhhml · « **Reply #138 on:** April 20, 2019, 06:10:08 PM »

hello guys! I'm totally new here and I want to install ML on my M50. Can someone step by step explain this to me?

Thanks,
Jacob

Walter Schulz · « **Reply #139 on:** April 20, 2019, 06:13:49 PM »

Quote from: ughhhml on April 20, 2019, 06:10:08 PM

hello guys! I'm totally new here

No, you are not. See reply #123.

Quote from: ughhhml on April 20, 2019, 06:10:08 PM

and I want to install ML on my M50. Can someone step by step explain this to me?

See reply #124

a1ex · « **Reply #140 on:** April 25, 2019, 07:36:54 AM »

Offtopic stuff about the 'when' question moved over here.

TLDR - I'll share the code as soon as I'll clean it up and make sure it's compatible with other models (DIGIC 6/7/8, without breaking 4 and 5). However, that will happen after taking a short break (could be a month or two, maybe more, maybe less). Sorry, I have to.

Greg · « **Reply #141 on:** April 27, 2019, 09:08:38 PM »

Diaphora - IDA PRO plugin for comparing the firmware :
https://github.com/joxeankoret/diaphora

M50 1.0.1 vs 1.0.2

Greg · « **Reply #142 on:** April 30, 2019, 02:02:54 PM »

Matt222Yt · « **Reply #143 on:** May 25, 2019, 03:54:37 PM »

Not sure why but my canon m50 doesn't recognize it as a firmware. Is this an April fools joke?

AaronG · « **Reply #144 on:** May 25, 2019, 07:59:17 PM »

Hello! I am new in the forum. Despite being new user, I follow the forum for some time. I would like to know if the version of ML that is passed is compatible with 1.02 and if anyone can help me install it. Thank you!

Walter Schulz · « **Reply #145 on:** May 25, 2019, 09:12:20 PM »

What is "it"? And unsure what you mean by "doesn't recognize".

http://www.catb.org/~esr/faqs/smart-questions.html#beprecise

Matt222Yt · « **Reply #146 on:** May 26, 2019, 06:00:34 AM »

I meant that my canon m50 does not recognize the magic lantern firmware and it won't do a firmware update. I already put in the autoexec.bin file but the camera says "memory card containing firmware is required to update"

andy kh · « **Reply #147 on:** May 26, 2019, 06:08:17 AM »

From where you get the magic lantern firmware for m50?

Walter Schulz · « **Reply #148 on:** May 26, 2019, 07:16:44 AM »

What andy kh said and (again): http://www.catb.org/~esr/faqs/smart-questions.html#beprecise esp. the part about reproducing an error.

Pinni3 · « **Reply #149 on:** May 28, 2019, 08:50:31 PM »

Quote from: Matt222Yt on May 26, 2019, 06:00:34 AM

I meant that my canon m50 does not recognize the magic lantern firmware and it won't do a firmware update. I already put in the autoexec.bin file but the camera says "memory card containing firmware is required to update"

the basic is out in JUST THE START not full magic lantern.
It is not only the basic ml april fools you need.
If you look in the forums you will see post with the files you need.

you will need fir files
just the find function on the forum : BOOT_M50.FIR

Personaly i get the awnsers you get from others.
But the forum is for helping others?
I send you in the right direction but do know that ML is not in it full form.

i was also in the dark for the how to, but i invested time and surfed and searched the forum and found my awnsers. TY DFORT for the pointers (Again a hint for searching Matt222Yt)

Also please do not ask ET for full version. just my to cents. alex needs the break

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Author Topic: DIGIC 8 'PowerShot' development (M50, SX70, SX740) (Read 234123 times)

dfort

dfort