SX280 / 275 / 270 porting

waterwingz

12139

Re: SX280 / 275 / 270 porting

« Reply #260 on: 09 / February / 2016, 09:38:35 »

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Quote from: Pier92 on 09 / February / 2016, 05:29:03

Hello to all. I have a Canon SX270 HS camera with CHDK. When I enable the photos in RAW camera saves files in dng photos have a distortion problem, how can I eliminate the effect fisheye??

Duplicate post answered here : how can I eliminate the effect fisheye??

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reyalp

14082

Re: SX280 / 275 / 270 porting

« Reply #261 on: 15 / February / 2016, 17:34:23 »

Here's a patch for sx280 102b that uses the finsig_thumb2 values for all mismatched stubs.

I think these are all differences in veneers, but if someone can check on the actual camera, that would help verify that the sigfinder matches are good.

sx280hs-102b-stubs-veneer-check.patch (13.56 kB - downloaded 39 times.)

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srsa_4c

4451

Re: SX280 / 275 / 270 porting

« Reply #262 on: 18 / February / 2016, 17:59:03 »

Quote from: reyalp on 15 / February / 2016, 17:34:23

Here's a patch for sx280 102b that uses the finsig_thumb2 values for all mismatched stubs.

I think these are all differences in veneers, but if someone can check on the actual camera, that would help verify that the sigfinder matches are good.

I confirmed all stubs in question by checking the disassembly, the resulting diskboot is working correctly of course.

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reyalp

14082

Re: SX280 / 275 / 270 porting

« Reply #263 on: 18 / February / 2016, 22:33:57 »

Quote from: srsa_4c on 18 / February / 2016, 17:59:03

I confirmed all stubs in question by checking the disassembly, the resulting diskboot is working correctly of course.

Thanks

I checked it in.

One might wonder why, since it already worked? Using the sig finder values makes it easier for me to check other ports, since I can do capdis -s=<name> and visually compare the code. It also saves anyone looking at it later from needing to spend time figuring out if the differences are significant.

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Don't forget what the H stands for.

reyalp

14082

Re: SX280 / 275 / 270 porting

« Reply #264 on: 19 / February / 2016, 00:16:56 »

Does GetDrive_TotalClusters on sx280 return the correct value? On g7x, what looks like the equivalent function returns the same value as GetDrive_FreeClusters. The function just before GetDrive_FreeClusters in ROM appears to be GetDrive_TotalClusters.

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srsa_4c

4451

Re: SX280 / 275 / 270 porting

« Reply #265 on: 19 / February / 2016, 13:03:54 »

Quote from: reyalp on 19 / February / 2016, 00:16:56

On g7x, what looks like the equivalent function returns the same value as GetDrive_FreeClusters.

Same thing here, I forgot to check it apparently.

Quote

The function just before GetDrive_FreeClusters in ROM appears to be GetDrive_TotalClusters.

sub_fc2a4b67 does appear to return the correct cluster count, so it's likely the real GetDrive_TotalClusters...

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zweistein68

29

Re: SX280 / 275 / 270 porting

« Reply #266 on: 05 / March / 2016, 08:34:51 »

Hello,

I am thinking of buying a SX270 and would like to know if the usb switch works.

thanks
Zweistein

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srsa_4c

4451

Re: SX280 / 275 / 270 porting

« Reply #267 on: 05 / March / 2016, 12:56:23 »

Quote from: zweistein68 on 05 / March / 2016, 08:34:51

I am thinking of buying a SX270 and would like to know if the usb switch works.

You probably mean this: http://chdk.wikia.com/wiki/USB_Remote
It should work, I don't remember hearing complaints.

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srsa_4c

4451

Re: SX280 / 275 / 270 porting

« Reply #268 on: 05 / March / 2016, 13:08:42 »

New, CHDK 1.5 based builds. The port itself has not changed significantly aside from a minor bugfix (free card space percentage was incorrect).

edit: builds updated to r4515 due to an important bugfix

edit2:
obsolete builds removed
sx280hs-102b-1.5.0-4515-full.zip (690.18 kB - downloaded 175 times.)
sx280hs-102c_102d-1.5.0-4515-full.zip (690.14 kB - downloaded 201 times.)

« Last Edit: 17 / June / 2017, 11:59:42 by srsa_4c »

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zweistein68

29

Re: SX280 / 275 / 270 porting

« Reply #269 on: 08 / March / 2016, 10:15:56 »

Hello,

a few days ago I asked about if the USB remote control workswith this model - exited about the positive response I bought one SX270 on ebay - and got it today - unfortunately it has firmware 1.01b not 1.02x - and I cannot find a CHDK verson for 1.01b - did I miss something? Or can someone do porting for this firmware version too? I could surely do some beta tests if necessary.

thanks
Zweistein

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