Power Shot A490 - Feature Requests - CHDK Forum
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Power Shot A490

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Offline dezza

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Power Shot A490
« on: 23 / August / 2010, 10:42:06 »
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Will there be support for the A490? It looks similar to the A480 which is supported.
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Offline zeno

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Re: Power Shot A490
« Reply #1 on: 23 / August / 2010, 10:55:54 »
It may look similar, but the A490 is one of the 2010-released cameras. Until a couple of weeks ago it was not possible to produce a firmware dump for any of the 2010 cameras - such a dump is a necessary first step in porting CHDK to a camera.

A new dumper has now been written and I think a dump of the A490 has been produced, but this is just the first step. Now someone who has the camera AND the time and skill to do the porting has to do the work. That could take some time (weeks probably, maybe months).
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Offline fvdk

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Re: Power Shot A490
« Reply #2 on: 23 / August / 2010, 11:21:38 »
Quote from: zeno on 23 / August / 2010, 10:55:54
It may look similar, but the A490 is one of the 2010-released cameras. Until a couple of weeks ago it was not possible to produce a firmware dump for any of the 2010 cameras - such a dump is a necessary first step in porting CHDK to a camera.

A new dumper has now been written and I think a dump of the A490 has been produced, but this is just the first step. Now someone who has the camera AND the time and skill to do the porting has to do the work. That could take some time (weeks probably, maybe months).

Actually, according to the Wiki, the A490 has not been dumped yet (I dumped the A495) so if you have the A490, it would be nice if you would make a firmware dump.

Frans
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Offline zeno

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Re: Power Shot A490
« Reply #3 on: 23 / August / 2010, 12:34:55 »
Oops, I misread the Wiki. Of course, you're right Frans. So dezza, could you make a firmware dump?
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Offline alex3000

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Re: Power Shot A490
« Reply #4 on: 25 / August / 2010, 04:25:06 »
I tried to make a fw dump, but it failed. Only with the NewDryOS feature cardtrick, the camera shows a response: it did nothig... with the other options the camera starts in playmode.
the dumpfile is empty. i also tried to do it with the canon script language, but it doesn't work. also a "hello world"-script isn't running.
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Offline reyalp

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Re: Power Shot A490
« Reply #5 on: 25 / August / 2010, 12:27:52 »
Quote from: alex3000 on 25 / August / 2010, 04:25:06
i also tried to do it with the canon script language, but it doesn't work. also a "hello world"-script isn't running.
Are you sure the card is prepared properly ?

I would expect it to work on this camera, since it works on both newer and older models
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Offline alex3000

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Re: Power Shot A490
« Reply #6 on: 26 / August / 2010, 01:23:55 »
Oh yeah - now something happened. I don't know why because in the first time i did exactly everything like now.
Now i could start the cbasic dumper and i got a file "primary.bin". i loaded it in cardtricks and generated a .txt  file.

it looks like this (only a few lines):


Code: [Select]
File pos   Mem pos      ID   Text
========   =======      ==   ====

00000004   00000004      0   gaonisoyP
00000D51   00000D51      0   -- Illegal inter 0x%x(%d) --
00000D71   00000D71      0   -- IRQ stack overflow --
00000E0C   00000E0C      0   meminfo
00000FBC   00000FBC      0   < Error Exception >
00000FD4   00000FD4      0   undefined
00000FE0   00000FE0      0   prefetch
00000FEC   00000FEC      0   abort
00000FF4   00000FF4      0    TYPE : %s
00001000   00001000      0   FALSE


000267FC   000267FC      0   ExMem.FreeCacheable
00026810   00026810      0   ExMem
00026818   00026818      0   StartCameraLog
00026828   00026828      0   ShowCameraLog
00026838   00026838      0   ShowCameraLogInfo
0002684C   0002684C      0   StopCameraLog
0002685C   0002685C      0   PutsCameraLogEvent
000268C8   000268C8      0   OpLog.Create
000268DC   000268DC      0   drysh
000268E4   000268E4      0   NewTaskShell
000268F8   000268F8      0   StartRedirectUART
00026910   00026910      0   StopRedirectUART
00026B30   00026B30      0   ShootSeqAPI.c

Is this useful?

Greets, Alex
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Offline reyalp

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Re: Power Shot A490
« Reply #7 on: 26 / August / 2010, 12:56:00 »
It worked. The primary.bin is the actual dump. Upload it to a file hosting site and post a link.
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Offline alex3000

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Re: Power Shot A490
« Reply #8 on: 27 / August / 2010, 01:18:45 »
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Offline TheThingX

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Re: Power Shot A490
« Reply #9 on: 02 / May / 2011, 18:14:07 »
some news for this camera?
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