SX280 / 275 / 270 porting - page 27 - DryOS Development - CHDK Forum
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SX280 / 275 / 270 porting

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Offline waterwingz

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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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Offline reyalp

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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.
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Offline srsa_4c

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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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Offline reyalp

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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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Offline reyalp

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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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Offline srsa_4c

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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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Offline zweistein68

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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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Offline srsa_4c

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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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Offline srsa_4c

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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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Offline zweistein68

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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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