SX280 / 275 / 270 porting

srsa_4c

4451

Re: SX280 / 275 / 270 porting

« Reply #130 on: 01 / January / 2015, 08:30:38 »

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Hi,

Quote from: john_76 on 01 / January / 2015, 07:46:01

Is the source code for the prealphas available?

of course, the link is in the first post of this thread. A list of additional addresses is attached to this post.

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I need to shoot aerial RAW with precise GPS timestamp (well, to the extent possible).

There is GPS support in 5 CHDK ports (including the s100), you can use that as starting point.

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Currently I use S100, but SX280 should work better in low-light fast-motion situations

I don't know... the s100 has larger sensor, faster lens.

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Also, ideally I'd like to be able to control camera and get photos back via USB w/o writing to the SD card (it will be buffered by the on-board computer and lazily written to its flash)

PTP support is working (except for live view). Direct JPEG download should be possible after implementing filewritetask support (the support code in DryOS r52 ports can be of help - note that that remote shooting has issues on several cameras).

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May I join the porting effort?

Sure. Note that, for the time being, this "fork" is stuck at CHDK trunk rev. 3449.

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djellison

5

Re: SX280 / 275 / 270 porting

« Reply #131 on: 03 / January / 2015, 21:49:41 »

FYI - I just purchases two SX280's from Canon's refurb store. They report firmware 102.d

I tried the stick method of installing a pre-release version..
http://www.zenoshrdlu.com/stick/stickx.html

To install sx280hs-102c-prealpha7_1.3.0-3449-full.zip ( in the hope that 102c might work on my 102d )

On power-up, the SD card activity LED flashes constantly, and that's it - nothing else occurs.

Anything I can do to help troubleshoot...more than happy to contribute.

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reyalp

14114

Re: SX280 / 275 / 270 porting

« Reply #132 on: 03 / January / 2015, 22:28:08 »

Quote from: djellison on 03 / January / 2015, 21:49:41

To install sx280hs-102c-prealpha7_1.3.0-3449-full.zip ( in the hope that 102c might work on my 102d )

On power-up, the SD card activity LED flashes constantly, and that's it - nothing else occurs.

Anything I can do to help troubleshoot...more than happy to contribute.

Get a firmware dump. AFAIK the Canon Basic dumper still works on these: http://chdk.wikia.com/wiki/Canon_Basic/Scripts/Dumper

Sadly these seem to be out of stock now, or I'd pick one up for Digic 6 development.

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Don't forget what the H stands for.

srsa_4c

4451

Re: SX280 / 275 / 270 porting

« Reply #133 on: 04 / January / 2015, 18:38:44 »

Quote from: djellison on 03 / January / 2015, 21:49:41

( in the hope that 102c might work on my 102d )

On power-up, the SD card activity LED flashes constantly, and that's it - nothing else occurs.

To clarify things, the prealphas only run on the appropriate firmware version. They will blink the LED forever on other fw revisions and crash/go to infinite loop on other models.

If you're very lucky, 102d could be compatible with 102c. But we need to see the dump first.

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hzy5000

5

Re: SX280 / 275 / 270 porting

« Reply #134 on: 05 / January / 2015, 08:56:16 »

I have a SX280 HS 102d camera. When I used 102c-prealpha build on my camera. It just can blink the led.
How can i make chdk work on my camera?

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srsa_4c

4451

Re: SX280 / 275 / 270 porting

« Reply #135 on: 05 / January / 2015, 11:29:24 »

Re: PM

Quote from: hzy5000 on 05 / January / 2015, 08:56:16

I used the Canon Basic Dumper to dump firmware, but it did not work.

The dumper should be working unless Canon decided to disallow Canon Basic in the new firmware revision (which I don't believe).
Please re-read the details of card preparation. If your card is 32GB or bigger, try using a smaller SD card. Start the camera in playback mode and press 'FUNC. SET". The card should NOT be locked, otherwise no files will be written. The files have to be plain ASCII text files, not Unicode or any kind of formatted text.

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newbie77

2

Re: SX280 / 275 / 270 porting

« Reply #136 on: 05 / January / 2015, 12:37:58 »

Hi, has anyone been able to get the basic chdk functions working with SX280HS v102c yet? I have tried and tried to set up a 64gb card, but failed miserably. Is the card too big ? Also has anyone found a way to update the firmware ? (I can't find it in any menu) Thank you for your time !

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srsa_4c

4451

Re: SX280 / 275 / 270 porting

« Reply #137 on: 05 / January / 2015, 17:39:20 »

Quote from: newbie77 on 05 / January / 2015, 12:37:58

Hi, has anyone been able to get the basic chdk functions working with SX280HS v102c yet?

Apparently yes since there is a release for 102c.

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I have tried and tried to set up a 64gb card, but failed miserably. Is the card too big ?

You need a card formatted with FAT32. For cards larger than 32GB this can be a problem because
- the camera itself will format these large cards to exFAT
- built-in utilities of Windows don't allow FAT32 formatting on these

Read the STICK and FAT32 related parts of this thread: http://chdk.setepontos.com/index.php?topic=12132.0
You can also read back a few posts here.

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Also has anyone found a way to update the firmware ?

Your firmware is newer than the latest officially available firmware for this model, so there is no way to upgrade or downgrade.

« Last Edit: 05 / January / 2015, 18:24:02 by srsa_4c »

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newbie77

2

Re: SX280 / 275 / 270 porting

« Reply #138 on: 06 / January / 2015, 13:22:10 »

thanks srsa_4c, I managed to get a r4gb card working by using the WIcks programme to format etc.

Well done !

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hzy5000

5

Re: SX280 / 275 / 270 porting

« Reply #139 on: 09 / January / 2015, 09:39:23 »

I dumped the firmware of SX280 102d. I want to port 102c code to working on my SX280 102d.
What should i do next step?

SX280 102d Firmware Link:

https://drive.google.com/file/d/0B-uM4p-a51ZALThQd1VMWERyd0U/view?usp=sharing

https://drive.google.com/file/d/0B-uM4p-a51ZAMjJIN0wtWUZHRjQ/view?usp=sharing

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